National Library of Energy BETA

Sample records for integrated algal biorefinery

  1. Sapphire Energy - Integrated Algal Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sapphire Energy, Inc. DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Sapphire Energy - Integrated Algal Biorefinery EE0002884 March 24 2015 SAPPHIRE CONFIDENTIAL 1 Original project goals (2009) SAPPHIRE CONFIDENTIAL 2 Project objectives Demonstrate the technical and economic feasibility of an algae-to-drop-in green fuels process that will form the basis for the development of a series of commercial scale biorefineries. * Deploy the algae to green fuels process at the

  2. Algal Integrated Biorefineries | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Research & Development » Algal Biofuels » Algal Integrated Biorefineries Algal Integrated Biorefineries The Algae Program works closely with the Demonstration and Deployment Program on projects that can validate advancements toward commercialization at increasing scales. Integrated biorefineries apply R&D to scale-up facilities to a degree relevant to commercial applications. U.S. Department of Energy funding of this work helps to advance the industry by minimizing the risk of these

  3. Demonstration and Deployment Successes: Sapphire Integrated Algal...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Successes: Sapphire Integrated Algal Biorefinery Demonstration and Deployment Successes: Sapphire Integrated Algal Biorefinery Demonstration and Deployment Successes Jaime Moreno, ...

  4. Recovery Act: Beneficial CO{sub 2} Capture in an Integrated Algal Biorefinery for Renewable Generation and Transportation Fuels

    SciTech Connect

    Lane, Christopher; Hampel, Kristin; Rismani-Yazdi, Hamid; Kessler, Ben; Moats, Kenneth; Park, Jonathan; Schwenk, Jacob; White, Nicholas; Bakhit, Anis; Bargiel, Jeff; Allnutt, F. C.

    2014-03-31

    DOE DE-FE0001888 Award, Phase 2, funded research, development, and deployment (RD&D) of Phycal’s pilot-scale, algae to biofuels, bioproducts, and processing facility in Hawai’i. Phycal’s algal-biofuel and bioproducts production system integrates several novel and mature technologies into a system that captures and reuses industrially produced carbon dioxide emissions, which would otherwise go directly to the atmosphere, for the manufacture of renewable energy products and bioproducts from algae (note that these algae are not genetically engineered). At the end of Phase 2, the project as proposed was to encompass 34 acres in Central Oahu and provide large open ponds for algal mass culturing, heterotrophic reactors for the Heteroboost™ process, processing facilities, water recycling facilities, anaerobic digestion facilities, and other integrated processes. The Phase 2 award was divided into two modules, Modules 1 & 2, where the Module 1 effort addressed critical scaling issues, tested highest risk technologies, and set the overall infrastructure needed for a Module 2. Phycal terminated the project prior to executing construction of the first Module. This Final Report covers the development research, detailed design, and the proposed operating strategy for Module 1 of Phase 2.

  5. Economy Through Product Diversity: Integrated Biorefineries ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Economy Through Product Diversity: Integrated Biorefineries Economy Through Product Diversity: Integrated Biorefineries Achieving national energy and climate goals will require an...

  6. Integrated Biorefineries:Biofuels, Biopower, and Bioproducts...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Biorefineries:Biofuels, Biopower, and Bioproducts Integrated Biorefineries:Biofuels, Biopower, and Bioproducts The U.S. goal to produce 21 billion gallons of advanced ...

  7. Economy Through Product Diversity: Integrated Biorefineries

    SciTech Connect

    2010-03-01

    A general discussion of the integrated biorefinery concept, the Biomass Program's related activities and challenges and specific biorefinery projects being funded through the Program.

  8. Biomass Program 2007 Accomplishments - Integrated Biorefinery Platform

    SciTech Connect

    none,

    2008-06-01

    This document details the accomplishments of the Biomass Program Integrated Biorefinery Platform in 2007.

  9. Biochemical Conversion - Biorefinery Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Research & Development » Conversion Technologies » Biochemical Conversion » Biochemical Conversion - Biorefinery Integration Biochemical Conversion - Biorefinery Integration One of the essential elements in the economical and efficient production of cellulosic biofuels is the development of biorefineries. Similar in concept to traditional petroleum refineries, biorefineries convert various types of biomass feedstock into marketable chemicals, fuels, and products. By taking advantage of

  10. Algenol Biofuels Inc., Integrated Pilot-Scale Biorefinery | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algenol Biofuels Inc., Integrated Pilot-Scale Biorefinery Algenol Biofuels Inc., Integrated Pilot-Scale Biorefinery Algenol Biofuels Inc., will create a pilot-scale biorefinery ...

  11. Integrated Biorefinery Lessons Learned and Best Practices

    Energy.gov [DOE]

    Breakout Session 1D—Building Market Confidence and Understanding I: Integrated Biorefinery (Lessons Learned and Best Practices) Integrated Biorefinery Lessons Learned and Best Practices Glenn Doyle, Technology Manager, Bioenergy Technologies Office, U.S. Department of Energy

  12. Abengoa Integrated Biorefineries | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Biorefineries Abengoa Integrated Biorefineries Demonstration and Deployment Successes Gerson Santos, Executive Vice President, Abengoa b13_santos_ap-2.pdf (2.72 MB) More Documents & Publications 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review Biomass IBR Fact Sheet: Abengoa Bioenergy Abengoa IBR Successes

  13. Commercialization of Integrated Biorefineries via Synergies between

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Commodity and High Value Products | Department of Energy Commercialization of Integrated Biorefineries via Synergies between Commodity and High Value Products Commercialization of Integrated Biorefineries via Synergies between Commodity and High Value Products Breakout Session 3C: Innovative Approaches and Materials for Clean Energy Commercialization of Integrated Biorefineries via Synergies between Commodity and High Value Products Vesa Pylkkanen, Chief American Process, Inc.

  14. 2011 Biomass Program Platform Peer Review: Integrated Biorefineries...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Biorefineries 2011 Biomass Program Platform Peer Review: Integrated ... experts at the U.S. Department of Energy Biomass Programs Integrated Biorefinery ...

  15. Integrated Biorefineries: Biofuels, Bioproducts, and Biopower | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Integrated Biorefineries: Biofuels, Bioproducts, and Biopower Integrated Biorefineries: Biofuels, Bioproducts, and Biopower Achieving national energy and climate goals will require an economically viable and environmentally sustainable U.S. bioindustry. A crucial step in developing this industry is to establish integrated biorefineries capable of efficiently converting a broad range of biomass feedstocks into affordable biofuels, bioproducts, and biopower. ibr_overview.pdf (713.96

  16. Integrated Biorefinery Lessons Learned and Best Practices

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Biorefinery Lessons Learned and Best Practices - Breakout Session 1 Session Moderator: Glenn Doyle U.S. Department of Energy Bioenergy Technologies Office July 29 th , ...

  17. Integrated Biorefineries: Biofuels, Bioproducts, and Biopower...

    Energy.gov [DOE] (indexed site)

    A crucial step in developing this industry is to establish integrated biorefineries capable of efficiently converting a broad range of biomass feedstocks into affordable biofuels, ...

  18. 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review Plenary I: ...

  19. FOA for the Demonstration of an Integrated Biorefinery System...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications FOA for the Demonstration of an Integrated Biorefinery System: Range Fuels, Inc. FOA for the Demonstration of an Integrated Biorefinery System: ...

  20. FOA for the Demonstration of an Integrated Biorefinery System...

    Office of Environmental Management (EM)

    Blue Fire Ethanol, Inc. FOA for the Demonstration of an Integrated Biorefinery System: Blue Fire Ethanol, Inc. FOA for the Demonstration of an Integrated Biorefinery System: Blue ...

  1. FOA for the Demonstration of an Integrated Biorefinery System...

    Office of Environmental Management (EM)

    Range Fuels, Inc. FOA for the Demonstration of an Integrated Biorefinery System: Range Fuels, Inc. FOA for the Demonstration of an Integrated Biorefinery System: Range Fuels, Inc. ...

  2. Integrated Biorefineries: Biofuels, Biopower, and Bioproducts

    SciTech Connect

    2013-05-06

    This fact sheet describes integrated biorefineries and the Program's work with them. A crucial step in developing the U.S. bioindustry is to establish integrated biorefineries capable of efficiently converting a broad range of biomass feedstocks into affordable biofuels, biopower, and other bioproducts.

  3. Integrated Biorefineries | Department of Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Map Labels The interactive map above highlights biorefinery projects funded by the Bioenergy Technologies Office at pilot, demonstration, and pioneer scales. Adjust the map...

  4. Thermochemical Conversion - Biorefinery Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - Biorefinery Integration Thermochemical Conversion - Biorefinery Integration Fuels Synthesis Fuels can be produced from bio-oils using processes similar to those found in a petroleum refinery, including hydrotreating and hydrocracking to create green gasoline, an alternative to alcohol-based ethanol fuels. Some types of bio-oils can even be fully integrated into petroleum refining stream and infrastructure. The conversion of biomass derived syngas to products is typically an exothermic process,

  5. Integrated Biorefinery Research Facility | Bioenergy | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Integrated Biorefinery Research Facility NREL's Integrated Biorefinery Research Facility (IBRF) enables researchers and industry partners to develop, test, evaluate, and demonstrate processes and technologies for the production of bio-based products and fuels. Interior of industrial, two-story building with high-bay, piping, and large processing equipment. Three workers in hard hats. In addition to the facility itself, NREL's world-renowned expert staff works with IBRF partners at every stage of

  6. Integrated Biorefinery Research Facility (IBRF I-II) (Post CD...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Biorefinery Research Facility (IBRF I-II) (Post CD-4), EERE, Aug 2011 Integrated Biorefinery Research Facility (IBRF I-II) (Post CD-4), EERE, Aug 2011 PDF icon 000521 & ...

  7. 2009 Integrated Biorefinery Platform Review Report

    SciTech Connect

    Ferrell, John

    2009-12-01

    This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the U.S. Department of Energy Biomass Program‘s Integrated Biorefinery (IBR) platform review meeting, held on February 18–19, 2009, at the Westin National Harbor, National Harbor, Maryland.

  8. Economy Through Product Diversity: Integrated Biorefineries

    Energy.gov [DOE]

    Achieving national energy and climate goals will require an economically viable and environmentally sustainable U.S. bioindustry. A crucial step in developing this industry is to establish integrated biorefineries capable of efficiently converting a broad range of biomass feedstocks into affordable biofuels, biopower, and other products.

  9. Solazyme Pilot-Scale Biorefinery | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solazyme Pilot-Scale Biorefinery Solazyme Pilot-Scale Biorefinery The Solazyme integrated biorefinery will use a heterotrophic algal oil biomanufacturing process to create biofuels. ibr_arra_solazyme.pdf (305.49 KB) More Documents & Publications CX-005693: Categorical Exclusion Determination Algae Biofuels Technology 2016 National Algal Biofuels Technology Review

  10. 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Project Review | Department of Energy 4 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review Plenary I: Progress in Advanced Biofuels 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review Gerson Santos-Leon, Executive Vice President, Abengoa santos-leon_biomass_2014.pdf (4.68 MB) More Documents & Publications Abengoa IBR Successes Applicant

  11. 2011 Biomass Program Platform Peer Review: Integrated Biorefineries |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Integrated Biorefineries 2011 Biomass Program Platform Peer Review: Integrated Biorefineries "This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the U.S. Department of Energy Biomass Programs Integrated Biorefinery Platform Review meeting, held on February 1...3, 2011, at the U.S. Department of Energy, Washington, D.C." 2011_ibr_review.pdf (2.52

  12. 2013 Peer Review Presentations-Integrated Biorefineries | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Integrated Biorefineries 2013 Peer Review Presentations-Integrated Biorefineries The Bioenergy Technologies Office hosted its 2013 Project Peer Review on May 20-24, 2015, at the Hilton Mark Center in Alexandria, Virginia. The presentations from integrated biorefineries session are available to view and download below. For detailed session descriptions and presentation titles, view the 2013 Project Peer Review Program Booklet. ibr_cesaek_55101.pdf (1.27 MB) ibr_cherry_5141.pdf (5.3 MB)

  13. Red Shield Acquisition, LLC, Integrated Biorefinery

    Energy.gov [DOE]

    This demonstration-scale biorefinery will produce lignocellulosic sugars for biofuel feedstock from woody biomass.

  14. Integrated Biorefinery Research Facility: Advancing Biofuels Technology (Fact Sheet)

    SciTech Connect

    Not Available

    2009-03-01

    The Integrated Biorefinery Research Facility (IBRF) at the National Renewable Energy Laboratory (NREL) expands NREL's cellulosic ethanol research and development and collaboration capabilities.

  15. FOA for the Demonstration of an Integrated Biorefinery System...

    Office of Environmental Management (EM)

    Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an ...

  16. Integrated Biorefineries | Department of Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research & Development Demonstration & Market Transformation Integrated ... funded by the Bioenergy Technologies Office at pilot, demonstration, and pioneer scales. ...

  17. Second-Generation Biofuels from Multi-Product Biorefineries Combine

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Economic Sustainability With Environmental Sustainability | Department of Energy Second-Generation Biofuels from Multi-Product Biorefineries Combine Economic Sustainability With Environmental Sustainability Second-Generation Biofuels from Multi-Product Biorefineries Combine Economic Sustainability With Environmental Sustainability Breakout Session 3B-Integration of Supply Chains III: Algal Biofuels Strategy Second-Generation Biofuels from Multi-Product Biorefineries Combine Economic

  18. Solazyme Pilot-Scale Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    11 Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 10% post consumer waste Solazyme Integrated Biorefinery: Diesel Fuels from Heterotrophic Algae Solazyme, Inc. will build, operate and optimize a pilot-scale "Solazyme Integrated Biorefinery" (SzIBR). SzIBR will demonstrate integrated scale-up of Solazyme's novel heterotrophic algal oil biomanufacturing process, validate the projected commercial-scale economics of producing multiple advanced

  19. FOA for the Demonstration of an Integrated Biorefinery System: Blue Fire

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ethanol, Inc. | Department of Energy Blue Fire Ethanol, Inc. FOA for the Demonstration of an Integrated Biorefinery System: Blue Fire Ethanol, Inc. FOA for the Demonstration of an Integrated Biorefinery System: Blue Fire Ethanol, Inc. Award No. DE-FC36-07GO17025 (14.26 MB) More Documents & Publications FOA for the Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an Integrated Biorefinery System: POET Project Liberty,

  20. FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Biorefinery (IABR) | Department of Energy Recovery Act - Integrated Algal Biorefinery (IABR) FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated Algal Biorefinery (IABR) FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated Algal Biorefinery (IABR). Sapphire Energy, Inc. (3.27 MB) More Documents & Publications Buy American Guidance Documents American Recovery and Reinvestment Act, Financial Assistance Award: 212 Degrees Consulting, LLC

  1. FOA for the Demonstration of an Integrated Biorefinery System: Abengoa

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Bioenergy Biomass of Kansas, LLC | Department of Energy Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of Kansas, LLC. Award No. DE-FC36-07GO17028, Part 1 (1.38 MB) Award No. DE-FC36-07GO17028, Part 2 (1.66 MB) Abengoa, Mod No. M001 Contract No. DE-FC36-07GO17028 (1.57 MB) More Documents & Publications

  2. Commercialization of Integrated Biorefineries via synergies between commodity and high value products

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Commercialization of Integrated Biorefineries via synergies between commodity and high value products Presented by: Vesa Pylkkanen Chief Technology Officer American Process Inc. American Process Inc. - a 20-year history 1995 Process Integration Studies 2011 Biorefinery Operations 2013 Global Partnerships and Licensing 2009 Biorefinery Engineering & Construction 2005 Biorefinery R&D 2015 Commercial Operations 2016 JDA/JV collaborations 2015 Nanocellulose production In the backdrop of

  3. Biomass Program 2007 Peer Review - Integrated Biorefinery Platform Summary

    SciTech Connect

    none,

    2009-10-27

    This document discloses the comments provided by a review panel at the U.S. Department of Energy Office of the Biomass Program Peer Review held on November 15-16, 2007 in Baltimore, MD and the Integrated Biorefinery Platform Review held on August 13-15, 2007 in Golden, Colorado.

  4. ClearFuels-Rentech Integrated Biorefinery Final Report

    SciTech Connect

    Pearson, Joshua

    2014-02-26

    The project Final Report describes the validation of the performance of the integration of two technologies that were proven individually on a pilot scale and were demonstrated as a pilot scale integrated biorefinery. The integrated technologies were a larger scale ClearFuels’ (CF) advanced flexible biomass to syngas thermochemical high efficiency hydrothermal reformer (HEHTR) technology with Rentech’s (RTK) existing synthetic gas to liquids (GTL) technology.

  5. Partnering with Industry to Advance Biofuels, NREL's Integrated Biorefinery Research Facility (Fact Sheet)

    SciTech Connect

    Not Available

    2010-10-01

    Fact sheet describing NREL's Integrated Biorefinery Research Facility and its availability to biofuels' industry partners who want to operate, test, and develop biorefining technology and equipment.

  6. Integrated Biorefineries:Biofuels, Biopower, and Bioproducts

    Energy.gov [DOE] (indexed site)

    biofuels. Developing the U.S. bioeconomy requires building many integrated biorefneries capable of converting a broad range of biomass feedstocks into affordable biofuels, ...

  7. NREL: Biomass Research - Integrated Biorefinery Research Facility

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The IBRF's 27,000-ft2, high-bay biochemical conversion pilot ... into end-to-end process integration and evaluation tests ... for staged feedstock pre-processing operations in one vessel ...

  8. Demonstration and Deployment Successes: Sapphire Integrated Algal Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE)

    Demonstration and Deployment Successes Jaime Moreno, Vice President of Projects, Sapphire Energy, Inc.

  9. Integration of Nutrient and Water Recycling for Sustainable Algal Biorefineries

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    03/25/2015 ALGAE TECHNOLOGY AREA Presenters: (1) Sridhar Viamajala, The University of Toledo; (2) Brent Peyton, Montana State University; (3) Matthew Fields, Montana State University This presentation does not contain any proprietary, confidential, or otherwise restricted information DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Goal Statement Develop the science and engineering for sustainable biomass production through use of: o Wastewater and nutrients recycled from N-

  10. Integration of Nutrient and Water Recycling for Sustainable Algal Biorefineries

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    05/23/2013 BETO 2013 PEER REVIEW Sridhar Viamajala The University of Toledo This presentation does not contain any proprietary, confidential, or otherwise restricted information Goal Statement Develop the science and engineering for sustainable biomass production through use of: o Wastewater and nutrients recycled from N- and P-rich post- conversion residues. o Minimizes inputs of water and synthetic fertilizers. o High lipid-producing native alkaliphilic algae. o Cultures tolerant to high pH

  11. NREL: Biomass Research - What Is a Biorefinery?

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    What Is a Biorefinery? A biorefinery is a facility that integrates biomass conversion processes and equipment to produce fuels, power, and chemicals from biomass. The biorefinery...

  12. Pilot Integrated Cellulosic Biorefinery Operations to Fuel Ethanol

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biorefinery Operations to Fuel Ethanol Award Number: DE-EE0002875 March 23, 2015 ... to refine cellulosic biomass into fuel ethanol and co-products Create an ...

  13. Integrated Biorefinery for conversion of Biomass to Ethanol,...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biorefinery for conversion of Biomass to Ethanol, Synthesis Gas, and Heat March 25, 2015 ... Louis MO Subsidiary of Abengoa SA, Spain Ethanol facilities in Nebraska, Kansas, New ...

  14. Amyris, Inc. Integrated Biorefinery Project Summary Final Report - Public Version

    SciTech Connect

    Gray, David; Sato, Suzanne; Garcia, Fernando; Eppler, Ross; Cherry, Joel

    2014-03-12

    The Amyris pilot-scale Integrated Biorefinery (IBR) leveraged Amyris synthetic biology and process technology experience to upgrade Amyris’s existing Emeryville, California pilot plant and fermentation labs to enable development of US-based production capabilities for renewable diesel fuel and alternative chemical products. These products were derived semi-synthetically from high-impact biomass feedstocks via microbial fermentation to the 15-carbon intermediate farnesene, with subsequent chemical finishing to farnesane. The Amyris IBR team tested and provided methods for production of diesel and alternative chemical products from sweet sorghum, and other high-impact lignocellulosic feedstocks, at pilot scale. This enabled robust techno-economic analysis (TEA), regulatory approvals, and a basis for full-scale manufacturing processes and facility design.

  15. Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass Program eere.energy.gov Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Biogas and Fuel Cell Workshop NREL June 11,2012 Brian Duff DOE Biomass Program 2 | Biomass Program eere.energy.gov Outline * The Importance of Anaerobic Digestion for Fuels, Products, and Power * Biomass Program Perspective * The Potential for Biogas/Fuel Cell Integration at Biorefineries o Retrofit Applications for 1st-Generation Biofuels Plants o Integration

  16. 2011 Biomass Program Platform Peer Review: Integrated Biorefineries

    Energy.gov [DOE] (indexed site)

    ... Continue with Possible Adjustments to Scope Other 7.7.2.8 Hot Water Extraction of Woodchips and ... are satisfied. 7.5.7.3 Southern Pine Based Biorefinery Center; Georgia Tech; ...

  17. FOA for the Demonstration of an Integrated Biorefinery System: POET Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Liberty, LLC | Department of Energy POET Project Liberty, LLC FOA for the Demonstration of an Integrated Biorefinery System: POET Project Liberty, LLC FOA for the Demonstration of an Integrated Biorefinery System: POET Project Liberty, LLC. Award No. DE-FC36-07GO17026, Part 1 (8.63 MB) Award No. DE-FC36-07GO17026, Part 2 (8.26 MB) Technology Investment Agreement (TIA) Award No. DE-FO36-08GO18121 (7.39 MB) More Documents & Publications FOA for the Demonstration of an Integrated

  18. Acid-Catalyzed Algal Biomass Pretreatment for Integrated Lipid and Carbohydrate-Based Biofuels Production

    SciTech Connect

    Laurens, L. M. L.; Nagle, N.; Davis, R.; Sweeney, N.; Van Wychen, S.; Lowell, A.; Pienkos, P. T.

    2014-11-12

    One of the major challenges associated with algal biofuels production in a biorefinery-type setting is improving biomass utilization in its entirety, increasing the process energetic yields and providing economically viable and scalable co-product concepts. We demonstrate the effectiveness of a novel, integrated technology based on moderate temperatures and low pH to convert the carbohydrates in wet algal biomass to soluble sugars for fermentation, while making lipids more accessible for downstream extraction and leaving a protein-enriched fraction behind. We studied the effect of harvest timing on the conversion yields, using two algal strains; Chlorella and Scenedesmus, generating biomass with distinctive compositional ratios of protein, carbohydrate, and lipids. We found that the late harvest Scenedesmus biomass had the maximum theoretical biofuel potential at 143 gasoline gallon equivalent (GGE) combined fuel yield per dry ton biomass, followed by late harvest Chlorella at 128 GGE per ton. Our experimental data show a clear difference between the two strains, as Scenedesmus was more successfully converted in this process with a demonstrated 97 GGE per ton. Our measurements indicated a release of >90% of the available glucose in the hydrolysate liquors and an extraction and recovery of up to 97% of the fatty acids from wet biomass. Techno-economic analysis for the combined product yields indicates that this process exhibits the potential to improve per-gallon fuel costs by up to 33% compared to a lipids-only process for one strain, Scenedesmus, grown to the mid-point harvest condition.

  19. Biorefinery and Carbon Cycling Research Project

    SciTech Connect

    Das, K. C., Adams; Thomas, T; Eiteman, Mark A; Kastner, James R; Mani, Sudhagar; Adolphson, Ryan

    2012-06-08

    In this project we focused on several aspects of technology development that advances the formation of an integrated biorefinery. These focus areas include: [ 1] pretreatment of biomass to enhance quality of products from thermochemical conversion; [2] characterization of and development of coproduct uses; [3] advancement in fermentation of lignocellulosics and particularly C5 and C6 sugars simultaneously, and [ 4] development of algal biomass as a potential substrate for the biorefinery. These advancements are intended to provide a diverse set of product choices within the biorefinery, thus improving the cost effectiveness of the system. Technical effectiveness was demonstrated in the thermochemical product quality in the form of lower tar production, simultaneous of use of multiple sugars in fermentation, use ofbiochar in environmental (ammonia adsorption) and agricultural applications, and production of algal biomass in wastewaters. Economic feasibility of algal biomass production systems seems attractive, relative to the other options. However, further optimization in all paths, and testing/demonstration at larger scales are required to fully understand the economic viabilities. The coproducts provide a clear picture that multiple streams of value can be generated within an integrated biorefinery, and these include fuels and products.

  20. Biorefinery and Hydrogen Fuel Cell Research

    SciTech Connect

    K.C. Das; Thomas T. Adams; Mark A. Eiteman; John Stickney; Joy Doran Peterson; James R. Kastner; Sudhagar Mani; Ryan Adolphson

    2012-06-12

    In this project we focused on several aspects of technology development that advances the formation of an integrated biorefinery. These focus areas include: [1] establishment of pyrolysis processing systems and characterization of the product oils for fuel applications, including engine testing of a preferred product and its pro forma economic analysis; [2] extraction of sugars through a novel hotwater extaction process, and the development of levoglucosan (a pyrolysis BioOil intermediate); [3] identification and testing of the use of biochar, the coproduct from pyrolysis, for soil applications; [4] developments in methods of atomic layer epitaxy (for efficient development of coatings as in fuel cells); [5] advancement in fermentation of lignocellulosics, [6] development of algal biomass as a potential substrate for the biorefinery, and [7] development of catalysts from coproducts. These advancements are intended to provide a diverse set of product choices within the biorefinery, thus improving the cost effectiveness of the system. Technical effectiveness was demonstrated in the pyrolysis biooil based diesel fuel supplement, sugar extraction from lignocelluose, use of biochar, production of algal biomass in wastewaters, and the development of catalysts. Economic feasibility of algal biomass production systems seems attractive, relative to the other options. However, further optimization in all paths, and testing/demonstration at larger scales are required to fully understand the economic viabilities. The various coproducts provide a clear picture that multiple streams of value can be generated within an integrated biorefinery, and these include fuels and products.

  1. Lignin conversion: Opportunities and challenges for the integrated biorefinery

    DOE PAGES [OSTI]

    Xie, Shangxian; Ragauskas, Arthur J.; Yuan, Joshua S.

    2016-06-21

    The utilization of lignin for fungible fuels and products represents one of the most imminent challenges in the modern biorefinery because most of the bioprocesses for lignocellulosic biofuels results in a lignin-containing waste stream. Considering lignin's abundance and relatively high energy content, this waste stream can be used as a feedstock for value-added products to improve the sustainability and economic feasibility of the biorefinery. Bioconversion of lignin with microbes recently emerged as an alternative lignin-valorization approach with significant potential. Typically, the microbial bioconversion of lignin requires three major steps: lignin depolymerization, aromatic compounds catabolism, and target product biosynthesis. In thismore » review, we summarize the most recent advances in lignin bioconversion to address the challenges in each of the three steps. In conclusion, we further discuss strategies and perspectives for future research to address the challenges in bioconversion of lignin.« less

  2. Algae Biorefinery Development for Biofuels and Bioproducts

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary V: National Algal Biofuels Technology Review Algae Biorefinery Development for Biofuels and Bioproducts Lieve Laurens, Senior Scientist, National Renewable Energy Laboratory

  3. Acid-Catalyzed Algal Biomass Pretreatment for Integrated Lipid and Carbohydrate-Based Biofuels Production

    DOE PAGES [OSTI]

    Laurens, L. M. L.; Nagle, N.; Davis, R.; Sweeney, N.; Van Wychen, S.; Lowell, A.; Pienkos, P. T.

    2014-11-12

    One of the major challenges associated with algal biofuels production in a biorefinery-type setting is improving biomass utilization in its entirety, increasing the process energetic yields and providing economically viable and scalable co-product concepts. We demonstrate the effectiveness of a novel, integrated technology based on moderate temperatures and low pH to convert the carbohydrates in wet algal biomass to soluble sugars for fermentation, while making lipids more accessible for downstream extraction and leaving a protein-enriched fraction behind. We studied the effect of harvest timing on the conversion yields, using two algal strains; Chlorella and Scenedesmus, generating biomass with distinctive compositionalmore » ratios of protein, carbohydrate, and lipids. We found that the late harvest Scenedesmus biomass had the maximum theoretical biofuel potential at 143 gasoline gallon equivalent (GGE) combined fuel yield per dry ton biomass, followed by late harvest Chlorella at 128 GGE per ton. Our experimental data show a clear difference between the two strains, as Scenedesmus was more successfully converted in this process with a demonstrated 97 GGE per ton. Our measurements indicated a release of >90% of the available glucose in the hydrolysate liquors and an extraction and recovery of up to 97% of the fatty acids from wet biomass. Techno-economic analysis for the combined product yields indicates that this process exhibits the potential to improve per-gallon fuel costs by up to 33% compared to a lipids-only process for one strain, Scenedesmus, grown to the mid-point harvest condition.« less

  4. Demonstration and Deployment Successes: Sapphire Integrated Algal...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... and solvents to create refinable crude oil Sapphire Energy - IABR Accomplishments & ... has a fully integrated R&D asset pipeline, enabling creation and testing of ...

  5. Development of efficient, integrated cellulosic biorefineries : LDRD final report.

    SciTech Connect

    Teh, Kwee-Yan; Hecht, Ethan S.; Shaddix, Christopher R.; Buffleben, George M.; Dibble, Dean C.; Lutz, Andrew E.

    2010-09-01

    Cellulosic ethanol, generated from lignocellulosic biomass sources such as grasses and trees, is a promising alternative to conventional starch- and sugar-based ethanol production in terms of potential production quantities, CO{sub 2} impact, and economic competitiveness. In addition, cellulosic ethanol can be generated (at least in principle) without competing with food production. However, approximately 1/3 of the lignocellulosic biomass material (including all of the lignin) cannot be converted to ethanol through biochemical means and must be extracted at some point in the biochemical process. In this project we gathered basic information on the prospects for utilizing this lignin residue material in thermochemical conversion processes to improve the overall energy efficiency or liquid fuel production capacity of cellulosic biorefineries. Two existing pretreatment approaches, soaking in aqueous ammonia (SAA) and the Arkenol (strong sulfuric acid) process, were implemented at Sandia and used to generated suitable quantities of residue material from corn stover and eucalyptus feedstocks for subsequent thermochemical research. A third, novel technique, using ionic liquids (IL) was investigated by Sandia researchers at the Joint Bioenergy Institute (JBEI), but was not successful in isolating sufficient lignin residue. Additional residue material for thermochemical research was supplied from the dilute-acid simultaneous saccharification/fermentation (SSF) pilot-scale process at the National Renewable Energy Laboratory (NREL). The high-temperature volatiles yields of the different residues were measured, as were the char combustion reactivities. The residue chars showed slightly lower reactivity than raw biomass char, except for the SSF residue, which had substantially lower reactivity. Exergy analysis was applied to the NREL standard process design model for thermochemical ethanol production and from a prototypical dedicated biochemical process, with process data

  6. Algae Biorefinery Development for Biofuels and Bioproducts

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algae Biorefinery Development for Biofuels and Bioproducts Bioenergy 2016 Washington, DC July 14, 2016 Lieve Laurens 2 Reduce cost of algal biofuels: * Harness unique position of algae as highly efficient photosynthetic cell factories * Identify key targets to contribute to lowering the overall cost of algal biofuels production * Quantify impact of major components supporting a multi-product algal biorefinery model * Analogous to replacing the whole barrel paradigm; low volume product streams

  7. Summative Mass Analysis of Algal Biomass - Integration of Analytical Procedures: Laboratory Analytical Procedure (LAP)

    SciTech Connect

    Laurens, L. M. L.

    2013-12-01

    This procedure guides the integration of laboratory analytical procedures to measure algal biomass constituents in an unambiguous manner and ultimately achieve mass balance closure for algal biomass samples. Many of these methods build on years of research in algal biomass analysis.

  8. EA-1888: Old Town Fuel and Fiber Proposed Demonstration-Scale Integrated Biorefinery in Old Town, Maine

    Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal by Old Town Fuel and Fiber to install and operate a demonstration-scale integrated biorefinery at their existing pulp mill in Old Town, Maine, demonstrating the production of n-butanol from lignocellulosic (wood) extract.

  9. Integrated Biorefinery Project: Cooperative Research and Development Final Report, CRADA Number CRD-10-390

    SciTech Connect

    Chapeaux, A.; Schell, D.

    2013-06-01

    The Amyris-NREL CRADA is a sub-project of Amyris?s DOE-funded pilot-scale Integrated Biorefinery (IBR). The primary product of the Amyris IBR is Amyris Renewable Diesel. Secondary products will include lubricants, polymers and other petro-chemical substitutes. Amyris and its project partners will execute on a rapid project to integrate and leverage their collective expertise to enable the conversion of high-impact biomass feedstocks to these advanced, infrastructure-compatible products. The scope of the Amyris-NREL CRADA includes the laboratory development and pilot scale-up of bagasse pretreatment and enzymatic saccharification conditions by NREL for subsequent conversion of lignocellulosic sugar streams to Amyris Diesel and chemical products by Amyris. The CRADA scope also includes a techno-economic analysis of the overall production process of Amyris products from high-impact biomass feedstocks.

  10. Alpena Biorefinery

    Energy.gov [DOE]

    The Alpena Biorefinery will be constructed in Alpena, Michigan, at the Decorative Panels International hardboard manufacturing facility.

  11. American Process—Alpena Biorefinery Lessons

    Energy.gov [DOE]

    Breakout Session 1D—Building Market Confidence and Understanding I: Integrated Biorefinery (Lessons Learned and Best Practices) American Process—Alpena Biorefinery Lessons Theodora Retsina, Chief Executive Officer, America Process Inc.

  12. 9003: Biorefinery Assistance Program | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    9003: Biorefinery Assistance Program 9003: Biorefinery Assistance Program Breakout Session 1D-Building Market Confidence and Understanding I: Integrated Biorefinery (Lessons Learned and Best Practices) 9003: Biorefinery Assistance Program Chris Cassidy, National Business Renewable Energy Advisor, U.S. Department of Agriculture cassidy_biomass_2014.pdf (418.43 KB) More Documents & Publications Project Finance and Investments Demonstration and Deployment Workshop - Day 1 American

  13. Recovery Act. Demonstration of a Pilot Integrated Biorefinery for the Efficient, Direct Conversion of Biomass to Diesel Fuel

    SciTech Connect

    Schuetzle, Dennis; Tamblyn, Greg; Caldwell, Matt; Hanbury, Orion; Schuetzle, Robert; Rodriguez, Ramer; Johnson, Alex; Deichert, Fred; Jorgensen, Roger; Struble, Doug

    2015-05-12

    The Renewable Energy Institute International, in collaboration with Greyrock Energy and Red Lion Bio-Energy (RLB) has successfully demonstrated operation of a 25 ton per day (tpd) nameplate capacity, pilot, pre-commercial-scale integrated biorefinery (IBR) plant for the direct production of premium, “drop-in”, synthetic fuels from agriculture and forest waste feedstocks using next-generation thermochemical and catalytic conversion technologies. The IBR plant was built and tested at the Energy Center, which is located in the University of Toledo Medical Campus in Toledo, Ohio.

  14. Advancing Commercialization of Algal Biofuels Through Increased Biomass Productivity and Technology Integration

    SciTech Connect

    Bai, Xuemei; Sabarsky, Martin

    2013-09-30

    Cellana is a leading developer of algae-based bioproducts, and its pre-commercial production of marine microalgae takes place at Cellana?s Kona Demonstration Facility (KDF) in Hawaii. KDF is housing more than 70 high-performing algal strains for different bioproducts, of which over 30 have been grown outside at scale. So far, Cellana has produced more than 10 metric tons of algal biomass for the development of biofuels, animal feed, and high-value nutraceuticals. Cellana?s ALDUO algal cultivation technology allows Cellana to grow non-extremophile algal strains at large scale with no contamination disruptions. Cellana?s research and production at KDF have addressed three major areas that are crucial for the commercialization of algal biofuels: yield improvement, cost reduction, and the overall economics. Commercially acceptable solutions have been developed and tested for major factors limiting areal productivity of algal biomass and lipids based on years of R&D work conducted at KDF. Improved biomass and lipid productivity were achieved through strain improvement, culture management strategies (e.g., alleviation of self-shading, de-oxygenation, and efficient CO2 delivery), and technical advancement in downstream harvesting technology. Cost reduction was achieved through optimized CO2 delivery system, flue gas utilization technology, and energy-efficient harvesting technology. Improved overall economics was achieved through a holistic approach by integration of high-value co-products in the process, in addition to yield improvements and cost reductions.

  15. Pilot-Scale Biorefinery: Sustainable Transport Fuels from Biomass via Integrated Pyrolysis and Catalytic Hydroconversion - Wastewater Cleanup by Catalytic Hydrothermal Gasification

    SciTech Connect

    Elliott, Douglas C.; Olarte, Mariefel V.; Hart, Todd R.

    2015-06-19

    DOE-EE Bioenergy Technologies Office has set forth several goals to increase the use of bioenergy and bioproducts derived from renewable resources. One of these goals is to facilitate the implementation of the biorefinery. The biorefinery will include the production of liquid fuels, power and, in some cases, products. The integrated biorefinery should stand-alone from an economic perspective with fuels and power driving the economy of scale while the economics/profitability of the facility will be dependent on existing market conditions. UOP LLC proposed to demonstrate a fast pyrolysis based integrated biorefinery. Pacific Northwest National Laboratory (PNNL) has expertise in an important technology area of interest to UOP for use in their pyrolysis-based biorefinery. This CRADA project provides the supporting technology development and demonstration to allow incorporation of this technology into the biorefinery. PNNL developed catalytic hydrothermal gasification (CHG) for use with aqueous streams within the pyrolysis biorefinery. These aqueous streams included the aqueous phase separated from the fast pyrolysis bio-oil and the aqueous byproduct streams formed in the hydroprocessing of the bio-oil to finished products. The purpose of this project was to demonstrate a technically and economically viable technology for converting renewable biomass feedstocks to sustainable and fungible transportation fuels. To demonstrate the technology, UOP constructed and operated a pilot-scale biorefinery that processed one dry ton per day of biomass using fast pyrolysis. Specific objectives of the project were to: The anticipated outcomes of the project were a validated process technology, a range of validated feedstocks, product property and Life Cycle data, and technical and operating data upon which to base the design of a full-scale biorefinery. The anticipated long-term outcomes from successful commercialization of the technology were: (1) the replacement of a significant

  16. United Biorefineries Corp UBC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    physical & biological research. Involved in the project development of an Integrated Biorefinery Complex utilizing algae and cellulosic-based second generation biofuels technology....

  17. Demonstration of Integrated Biorefinery Operations for Producing Biofuels and Chemical / Material Products

    SciTech Connect

    Rushton, Michael

    2011-09-01

    Lignol’s project involved the design, construction and operation of a 10% demonstration scale cellulosic ethanol biorefinery in Grand Junction Colorado in partnership with Suncor Energy. The preconstruction phase of the project was well underway when the collapse in energy prices coupled with a significant global economic downturn hit in the end 2008. Citing economic uncertainty, the project was suspended by Suncor. Lignol, with the support of the DOE continued to develop the project by considering relocating the biorefinery to sites that were more favorable in term of feedstock availability, existing infrastructure and potential partners Extended project development activities were conducted at three lead sites which offered certain key benefits to the overall biorefinery project. This work included feedstock availability studies, technical site assessment, engineering, plant design and pilot scale biorefining of feedstocks of interest. The project generated significant operational data on the bioconversion of woody feedstocks into cellulosic ethanol and lignin-based biochemicals. The project also highlighted the challenges faced by technology developers in attracting capital investment in first of kind renewable fuels solutions. The project was concluded on August 29 2011.

  18. Integration of Biorefineries and Nuclear Cogeneration Power Plants - A Preliminary Analysis

    SciTech Connect

    Greene, Sherrell R; Flanagan, George F; Borole, Abhijeet P

    2009-03-01

    Biomass-based ethanol and nuclear power are two viable elements in the path to U.S. energy independence. Numerous studies suggest nuclear power could provide a practical carbon-free heat source alternative for the production of biomass-based ethanol. In order for this coupling to occur, it is necessary to examine the interfacial requirements of both nuclear power plants and bioethanol refineries. This report describes the proposed characteristics of a small cogeneration nuclear power plant, a biochemical process-based cellulosic bioethanol refinery, and a thermochemical process-based cellulosic biorefinery. Systemic and interfacial issues relating to the co-location of either type of bioethanol facility with a nuclear power plant are presented and discussed. Results indicate future co-location efforts will require a new optimized energy strategy focused on overcoming the interfacial challenges identified in the report.

  19. Alpena Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Alpena Biorefinery March 25, 2015 Demonstration and Market Transformation Technology Area Review Theodora Retsina American Process, Inc. This presentation does not contain any proprietary, confidential, or otherwise restricted information Goal Statement The goal of the AB was to demonstrate a modular, technically successful, and financially viable process of making cellulosic ethanol from woody biomass extract at wood processing facilities. The project objectives and the value proposition of the

  20. Financing Advanced Biofuels, Biochemicals And Biopower In Integrated...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Financing Advanced Biofuels, Biochemicals And Biopower In Integrated Biorefineries Financing Advanced Biofuels, Biochemicals And Biopower In Integrated Biorefineries Afternoon ...

  1. Pilot-Scale Biorefinery: Sustainable Transport Fuels from Biomass via Integrated Pyrolysis, Catalytic Hydroconversion and Co-processing with Vacuum Gas Oil

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Pilot-Scale Biorefinery: Sustainable Transport Fuels from Biomass via Integrated Pyrolysis, Catalytic Hydroconversion and Co-processing with Vacuum Gas Oil Raymond G. Wissinger Manager, Renewable Energy & Chemicals Development UOP, LLC This presentation does not contain any proprietary, confidential, or otherwise restricted information © Copyright 2015 UOP LLC, a Honeywell Company 2 File Number Goal Statement * Demonstrate a technically and economically viable approach for converting

  2. Vertical Integration of Biomass Saccharification of Enzymes for Sustainable Cellulosic Biofuel Production in a Biorefinery

    SciTech Connect

    Manoj Kumar, PhD

    2011-05-09

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  3. Fully Integrated Lignocellulosic Biorefinery with Onsite Production of Enzymes and Yeast

    SciTech Connect

    Manoj Kumar, PhD

    2010-06-14

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  4. Integrated cellulosic enzymes hydrolysis and fermentative advanced yeast bioconversion solution ready for biomass biorefineries

    SciTech Connect

    Manoj Kumar, PhD

    2011-05-04

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  5. Nationwide: The Nation's First Commercial-Scale Biorefineries...

    Energy.gov [DOE] (indexed site)

    EERE supports 25 integrated biorefineries that are specifically focused on producing cellulosic ethanol, drop-in hydrocarbon biofuel, and bioproducts. As of July 2013, INEOS opened ...

  6. Algal Biofuels Strategy: Report on Workshop Results and Recent...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Biofuels Strategy: Report on Workshop Results and Recent Work Breakout Session 3B-Integration of Supply Chains III: Algal Biofuels Strategy Algal Biofuels Strategy: Report on ...

  7. Algal Pretreatment Improves Biofuels Yield and Value; Highlights in Science, NREL (National Renewable Energy Laboratory)

    SciTech Connect

    2015-05-15

    One of the major challenges associated with algal biofuels production in a biorefinery-type setting is improving biomass utilization in its entirety, increasing the process energetic yields and providing economically viable and scalable co-product concepts. We demonstrate the effectiveness of a novel, integrated technology based on moderate temperatures and low pH to convert the carbohydrates in wet algal biomass to soluble sugars for fermentation, while making lipids more accessible for downstream extraction and leaving a protein-enriched fraction behind. This research has been highlighted in the Green Chemistry journal article mentioned above and a milestone report, and is based on the work the researchers are doing for the AOP projects Algal Biomass Conversion and Algal Biofuels Techno-economic Analysis. That work has demonstrated an advanced process for algal biofuel production that captures the value of both the algal lipids and carbohydrates for conversion to biofuels.  With this process, as much as 150 GGE/ton of biomass can be produced, 2-3X more than can be produced by terrestrial feedstocks.  This can also reduce the cost of biofuel production by as much as 40%. This also represents the first ever design case for the algal lipid upgrading pathway.

  8. Mascoma: Frontier Biorefinery Project

    Energy.gov [DOE]

    This project involves the construction and operation of a biorefinery that produces ethanol and other co-products from cellulosic materials through advanced consolidated bioprocessing.

  9. Integrated Biorefinery Process

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Concept Development Commercial Viability Technical Viability Concept Proof Commercial Sustainability Information Resources Office of Biomass Program, Web Site: http:...

  10. RAFT Regional Algal Feedstock Testbed

    Energy.gov [DOE]

    Breakout Session 3B—Integration of Supply Chains III: Algal Biofuels Strategy RAFT Regional Algal Feedstock Testbed Kimberly Ogden, Professor, University of Arizona, Engineering Technical Lead, National Alliance for Advanced Biofuels and Bioproducts

  11. Integrated Evaluation of Cost, Emissions, and Resource Potential for Algal Biofuels at the National Scale

    SciTech Connect

    Davis, Ryan; Fishman, Daniel; Frank, Edward D.; Johnson, Michael C.; Jones, Susanne B.; Kinchin, Christopher; Skaggs, Richard; Venteris, Erik R.; Wigmosta, Mark S.

    2014-04-21

    Costs, emissions, and resource availability were modeled for the production of 5 billion gallons yr-1 (5 BGY) of renewable diesel in the United States from Chlorella biomass by hydrothermal liquefaction (HTL). The HTL model utilized data from a continuous 1-L reactor including catalytic hydrothermal gasification of the aqueous phase, and catalytic hydrotreatment of the HTL oil. A biophysical algae growth model coupled with weather and pond simulations predicted biomass productivity from experimental growth parameters, allowing site-by-site and temporal prediction of biomass production. The 5 BGY scale required geographically and climatically distributed sites. Even though screening down to 5 BGY significantly reduced spatial and temporal variability, site-to-site, season-to-season, and inter-annual variations in productivity affected economic and environmental performance. Performance metrics based on annual average or peak productivity were inadequate; temporally and spatially explicit computations allowed more rigorous analysis of these dynamic systems. For example, 3-season operation with a winter shutdown was favored to avoid high greenhouse gas emissions, and economic performance was harmed by underutilized equipment during slow-growth periods. Thus, analysis of algal biofuel pathways must combine spatiotemporal resource assessment, economic analysis, and environmental analysis integrated over many sites when assessing national scale performance.

  12. Elevance Pilot-Scale Biorefinery

    Energy.gov [DOE]

    The Elevance biorefinery uses catalyst technology to produce fuels and chemicals from renewable, natural oils.

  13. Algal Biofuels | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Biofuels Algal Biofuels Algae image The Bioenergy Technologies Office's (BETO's) Algae Program is carrying out a long-term applied research and development (R&D) strategy to increase the yields and lower the costs of algal biofuels by working with partners to develop new technologies, to integrate technologies at commercially-relevant scales, and conduct crosscutting analyses to understand the potential and challenges of an algal biofuel industry that is capable of annually producing

  14. Bioenergy Impacts: Biorefineries

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    POET-DSM's Project LIBERTY and Abengoa's Bioenergy Biomass of Kansas are biorefineries that convert corn stover-non-edible corn stalks, stems, and leaves-into cellulosic ethanol, a ...

  15. New Biorefinery Will Bring Jobs to Northeastern Oregon

    Energy.gov [DOE]

    In northeastern Oregon, ZeaChem, a Colorado-based biofuel company, recently broke ground on a 250,000 gallon integrated cellulosic biorefinery. The technology development project is expected to be operating in 2011.

  16. Alpena Biorefinery | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Alpena Biorefinery Alpena Biorefinery Alpena Biorefinery The American Process Inc. (API) Alpena Biorefinery converts the industrial waste stream from a neighboring board manufacturing mill into a cellulosic biofuel and by-product. API's innovative conversion process has helped the mill to significantly reduce its waste treatment costs, increase its economic viability, and improve the job retention outlook for its 200 employees. In addition to assisting this major employer in Alpena, Michigan,

  17. Albemarle Biorefinery Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biorefinery Inc Jump to: navigation, search Name: Albemarle Biorefinery Inc Place: Raleigh, North Carolina Zip: 27612 Product: A subsidiary of DFI Group that focusses on the...

  18. Recovery Act : Heterogeneous Feed Biorefinery Project

    SciTech Connect

    Schofield, Richard

    2015-03-15

    To overcome the hurdles associated with introducing a new technology, Enerkem applied to the US DOE for grant assistance with its Pontotoc, Mississippi, biorefinery under the DOE’s Demonstration of Integrated Biorefinery Operations FOA. Consistent with Enerkem’s strategic approach, the project proposed uses post sorted municipal solid waste blended with other forest residue. The proposed biorefinery is to be located within the boundaries of a working landfill, thus simplifying many aspects of environmental permitting while also reducing feedstock acquisition and transportation costs. An economic impact analysis was conducted using an adaptation of the US Department of Energy’s JEDI (Jobs and Economic Development Impact) model for an ethanol-producing biorefinery. The JEDI model, which does not have a thermochemical processing option, had to be configured to reflect a biomass feedstock and was thus adapted by Enerkem to account for the unique feedstock requirements and operations of the Project. According to this model, development, construction, and 2 years of operation of the biorefinery require an investment of approximately $140 million. Also, a construction period of 18 months will create significant direct and indirect employment. Indirect employment includes steel manufacturers, construction materials manufacturers, material shipping, equipment manufacturers and fabrication, etc. During the construction phase of the Project, 210 total jobs are expected to be created, including 145 direct jobs and 72 indirect or induced jobs. During the operating period, 131 jobs would be created, 95 of which are direct. It is anticipated that the project will create at least 10 new jobs (included in the above figures and in addition to the JEDI data) in the sorting and recycling sector, since the project will require operations in sorting MSW since valuable ferrous, nonferrous and recyclable plastic materials will be sorted from MSW as part of the process that isolates

  19. Renewable Diesel from Algal Lipids: An Integrated Baseline for Cost, Emissions, and Resource Potential from a Harmonized Model

    SciTech Connect

    Davis, R.; Fishman, D.; Frank, E. D.; Wigmosta, M. S.; Aden, A.; Coleman, A. M.; Pienkos, P. T.; Skaggs, R. J.; Venteris, E. R.; Wang, M. Q.

    2012-06-01

    The U.S. Department of Energy's Biomass Program has begun an initiative to obtain consistent quantitative metrics for algal biofuel production to establish an 'integrated baseline' by harmonizing and combining the Program's national resource assessment (RA), techno-economic analysis (TEA), and life-cycle analysis (LCA) models. The baseline attempts to represent a plausible near-term production scenario with freshwater microalgae growth, extraction of lipids, and conversion via hydroprocessing to produce a renewable diesel (RD) blendstock. Differences in the prior TEA and LCA models were reconciled (harmonized) and the RA model was used to prioritize and select the most favorable consortium of sites that supports production of 5 billion gallons per year of RD. Aligning the TEA and LCA models produced slightly higher costs and emissions compared to the pre-harmonized results. However, after then applying the productivities predicted by the RA model (13 g/m2/d on annual average vs. 25 g/m2/d in the original models), the integrated baseline resulted in markedly higher costs and emissions. The relationship between performance (cost and emissions) and either productivity or lipid fraction was found to be non-linear, and important implications on the TEA and LCA results were observed after introducing seasonal variability from the RA model. Increasing productivity and lipid fraction alone was insufficient to achieve cost and emission targets; however, combined with lower energy, less expensive alternative technology scenarios, emissions and costs were substantially reduced.

  20. Integrated Corn-Based Biorefinery

    Energy.gov [DOE]

    This fact sheet summarizes a U.S. Department of Energy Biomass Program research and development project.

  1. Algal functional annotation tool

    Energy Science and Technology Software Center

    2012-07-12

    Abstract BACKGROUND: Progress in genome sequencing is proceeding at an exponential pace, and several new algal genomes are becoming available every year. One of the challenges facing the community is the association of protein sequences encoded in the genomes with biological function. While most genome assembly projects generate annotations for predicted protein sequences, they are usually limited and integrate functional terms from a limited number of databases. Another challenge is the use of annotations tomore » interpret large lists of 'interesting' genes generated by genome-scale datasets. Previously, these gene lists had to be analyzed across several independent biological databases, often on a gene-by-gene basis. In contrast, several annotation databases, such as DAVID, integrate data from multiple functional databases and reveal underlying biological themes of large gene lists. While several such databases have been constructed for animals, none is currently available for the study of algae. Due to renewed interest in algae as potential sources of biofuels and the emergence of multiple algal genome sequences, a significant need has arisen for such a database to process the growing compendiums of algal genomic data. DESCRIPTION: The Algal Functional Annotation Tool is a web-based comprehensive analysis suite integrating annotation data from several pathway, ontology, and protein family databases. The current version provides annotation for the model alga Chlamydomonas reinhardtii, and in the future will include additional genomes. The site allows users to interpret large gene lists by identifying associated functional terms, and their enrichment. Additionally, expression data for several experimental conditions were compiled and analyzed to provide an expression-based enrichment search. A tool to search for functionally-related genes based on gene expression across these conditions is also provided. Other features include dynamic visualization of genes on

  2. Algal functional annotation tool

    SciTech Connect

    2012-07-12

    Abstract BACKGROUND: Progress in genome sequencing is proceeding at an exponential pace, and several new algal genomes are becoming available every year. One of the challenges facing the community is the association of protein sequences encoded in the genomes with biological function. While most genome assembly projects generate annotations for predicted protein sequences, they are usually limited and integrate functional terms from a limited number of databases. Another challenge is the use of annotations to interpret large lists of 'interesting' genes generated by genome-scale datasets. Previously, these gene lists had to be analyzed across several independent biological databases, often on a gene-by-gene basis. In contrast, several annotation databases, such as DAVID, integrate data from multiple functional databases and reveal underlying biological themes of large gene lists. While several such databases have been constructed for animals, none is currently available for the study of algae. Due to renewed interest in algae as potential sources of biofuels and the emergence of multiple algal genome sequences, a significant need has arisen for such a database to process the growing compendiums of algal genomic data. DESCRIPTION: The Algal Functional Annotation Tool is a web-based comprehensive analysis suite integrating annotation data from several pathway, ontology, and protein family databases. The current version provides annotation for the model alga Chlamydomonas reinhardtii, and in the future will include additional genomes. The site allows users to interpret large gene lists by identifying associated functional terms, and their enrichment. Additionally, expression data for several experimental conditions were compiled and analyzed to provide an expression-based enrichment search. A tool to search for functionally-related genes based on gene expression across these conditions is also provided. Other features include dynamic visualization of genes on KEGG

  3. EIS-0407: Abengoa Biorefinery Project Near Hugoton, Kansas

    Energy.gov [DOE]

    The U.S. Department of Energy prepared an environmental impact statement to assess the potential environmental impacts associated with the proposed action of providing Federal financial assistance to Abengoa Bioenergy Biomass of Kansas, LLC (Abengoa Bioenergy) to support the design, construction, and startup of a commercial-scale integrated biorefinery to be located near the city of Hugoton in Stevens County, southwestern Kansas.

  4. Range Fuels Commercial-Scale Biorefinery

    Energy.gov [DOE]

    The Range Fuels commercial-scale biorefinery will use a variety of feedstocks to create cellulosic ethanol, methanol, and power.

  5. Biorefinery Optimization Workshop Presentations | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biorefinery Optimization Workshop Presentations Biorefinery Optimization Workshop Presentations Presentations from the Biorefinery Optimization Workshop , hosted by the U.S. Department of Energy's Bioenergy Technologies Office on October 5-6, 2016. Speaker Last Name Affiliation Title Hartford Jenike & Johanson, Inc. Biomass Material Handling Considerations Kenney Idaho National Laboratory Industrial Feed Handling of Lingocellulosic Feedstocks Webb Oak Ridge National Laboratory Addressing

  6. Algal Biofuels Strategy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Biofuels Strategy Report on Workshop Results and Recent Work Roxanne Dempsey Technology Manager 2 Algal Biofuels Strategy Session Agenda-Report on Workshop Results and Recent ...

  7. Engineering Cellulases for Biorefinery

    SciTech Connect

    Manoj Kumar, PhD

    2010-06-27

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  8. Algal Biofuels Strategy: Report on Workshop Results and Recent Work

    Energy.gov [DOE]

    Breakout Session 3B—Integration of Supply Chains III: Algal Biofuels Strategy Algal Biofuels Strategy: Report on Workshop Results and Recent Work Roxanne Dempsey, Technology Manager, Bioenergy Technologies Office, U.S. Department of Energy

  9. Exploring the Utilization of Complex Algal Communities to Address Algal

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Pond Crash and Increase Annual Biomass Production for Algal Biofuels | Department of Energy Exploring the Utilization of Complex Algal Communities to Address Algal Pond Crash and Increase Annual Biomass Production for Algal Biofuels Exploring the Utilization of Complex Algal Communities to Address Algal Pond Crash and Increase Annual Biomass Production for Algal Biofuels white paper exploring complex algal communities as a means of increasing algal biomass production

  10. NewPage Demonstration-Scale Biorefinery | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    NewPage Demonstration-Scale Biorefinery NewPage Demonstration-Scale Biorefinery The NewPage biorefinery will be added to an existing pulp and paper mill to create renewable ...

  11. POET-DSM biorefinery in Iowa | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    POET-DSM biorefinery in Iowa POET-DSM biorefinery in Iowa Addthis Cellulosic ethanol biorefinery 1 of 10 Cellulosic ethanol biorefinery The mechanical building (front), solid/liquid separation building (left), and anaerobic digestion building (back) at POET-DSM's Project LIBERTY biorefinery in Emmetsburg, Iowa. Image: Courtesy of POET-DSM Stacking up biomass 2 of 10 Stacking up biomass The biomass stackyard, where corn waste is stored at POET-DSM's Project LIBERTY biorefinery. Image: Courtesy of

  12. Advanced and Cellulosic Biofuels and Biorefineries: State of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Cellulosic Biofuels and Biorefineries: State of the Industry, Policy and Politics Advanced and Cellulosic Biofuels and Biorefineries: State of the Industry, Policy and Politics ...

  13. Verenium Pilot- and Demonstration-Scale Biorefinery | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Verenium Pilot- and Demonstration-Scale Biorefinery Verenium Pilot- and Demonstration-Scale Biorefinery The Verenium facility will produce ethanol from lignocellulosic agricultural ...

  14. Algal Pretreatment Improves Biofuels Yield and Value (Fact Sheet), NREL Highlights, Science, NREL (National Renewable Energy Laboratory)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Advanced process for algal biofuel production captures the value of both the lipids and carbohydrates for conversion to biofuels. The major challenges associated with algal biofuels production in a biorefinery-type setting include improving biomass uti- lization, increasing the process energetic yields, reducing waste and greenhouse gas emissions, and providing economically viable and scalable coproduct concepts. Researchers from the National Renewable Energy Laboratory (NREL) have dem-

  15. Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production September 3, 2014 - 12:05pm Addthis News Media Contact 202-586-4940 WASHINGTON - Project LIBERTY, the nation's first commercial-scale cellulosic ethanol plant to use corn waste as a feedstock, announced the start of production today. Once operating at full, commercial-scale, the biorefinery in Emmetsburg, Iowa will produce 25 million gallons

  16. Myriant Succinic Acid BioRefinery

    Energy.gov [DOE] (indexed site)

    confidential, or otherwise restricted information Myriant Succinic Acid BioRefinery DOE ... This presentation does not contain any proprietary, confidential, or otherwise restricted ...

  17. Investigation of thermochemical biorefinery sizing and environmental...

    Office of Scientific and Technical Information (OSTI)

    Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs...

  18. A Biorefinery Goes 'Mod' and Small

    Energy.gov [DOE]

    Minnesota-based Easy Energy Systems sells small-scale, easy-to use biorefineries. The company expects to create 100 jobs because of new orders.

  19. National Algal Biofuels Technology Review

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary V: National Algal Biofuels Technology Review National Algal Biofuels Technology Review Matthew Posewitz, Professor, Colorado School of Mines

  20. EA-1788: Finding of No Significant Impact | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sapphire Energy Inc.'s Integrated Algal Biorefinery (IABR) Facility in Columbus, New Mexico Sapphire Energy Company proposes to construct and operated an Integrated Algal...

  1. EA-1788: Final Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sapphire Energy, Inc.'s Integrated Algal Biorefinery (IABR) Facility in Columbus, New Mexico Sapphire Energy Company proposes to construct and operated an Integrated Algal...

  2. Flambeau River Biofuels Demonstration-Scale Biorefinery | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Flambeau River Biofuels Demonstration-Scale Biorefinery Flambeau River Biofuels Demonstration-Scale Biorefinery The Flambeau River biorefinery will be added to an existing pulp and paper mill to create green diesel. ibr_demonstration_flambeau.pdf (275.93 KB) More Documents & Publications NewPage Demonstration-Scale Biorefinery Flambeau_River_Biofuels.pdf Pacific Ethanol, Inc

  3. Algal functional annotation tool

    SciTech Connect

    Lopez, D.; Casero, D.; Cokus, S. J.; Merchant, S. S.; Pellegrini, M.

    2012-07-01

    The Algal Functional Annotation Tool is a web-based comprehensive analysis suite integrating annotation data from several pathway, ontology, and protein family databases. The current version provides annotation for the model alga Chlamydomonas reinhardtii, and in the future will include additional genomes. The site allows users to interpret large gene lists by identifying associated functional terms, and their enrichment. Additionally, expression data for several experimental conditions were compiled and analyzed to provide an expression-based enrichment search. A tool to search for functionally-related genes based on gene expression across these conditions is also provided. Other features include dynamic visualization of genes on KEGG pathway maps and batch gene identifier conversion.

  4. Biorefinery Optimization Workshop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biorefinery Optimization Workshop Biorefinery Optimization Workshop October 5, 2016 8:00AM EDT to October 6, 2016 1:00PM EDT Loews Chicago O'Hare Hotel 5300 N River Road Rosemont, IL 60018 Even with years of continuous investments by the U.S. Department of Energy's Bioenergy Technologies Office (BETO) to de-risk first-of-a-kind technologies, numerous challenges still need to be addressed to achieve reliable and continuous operation of biorefineries that effectively compete with the refining and

  5. Regional Algal Feedstock Testbed

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    University of Arizona Tucson, Arizona USA ogden@email.arizona.edu Project Goals * Obtain long term algal cultivation data in outdoor pond systems * Work with industrial, ...

  6. Algal Biomass Valorization

    Energy.gov [DOE] (indexed site)

    Renewable Energy Laboratory This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 Goal Statement 1. Reduce cost of algal ...

  7. Algal Biofuels | Bioenergy | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Biofuels NREL is developing technologies and helping prepare a new generation workforce to enable the commercialization of algal biofuels. Photo of bright green algae in flasks in ...

  8. The Impact of Biomass Feedstock Supply Variability on the Delivered Price to a Biorefinery in the Peace River Region of Alberta, Canada

    SciTech Connect

    Stephen, Jamie; Sokhansanj, Shahabaddine; Bi, X.T.; Sowlati, T.; Kloeck, T.; Townley-Smith, Lawrence; Stumborg, Mark

    2010-01-01

    Agricultural residue feedstock availability in a given region can vary significantly over the 20 25 year lifetime of a biorefinery. Since delivered price of biomass feedstock to a biorefinery is related to the distance travelled and equipment optimization, and transportation distance increases as productivity decreases, productivity is a primary determinant of feedstock price. Using the Integrated Biomass Supply Analysis and Logistics (IBSAL) modeling environment and a standard round bale harvest and delivery scenario, harvest and delivery price were modelled for minimum, average, and maximum yields at four potential biorefinery sites in the Peace River region of Alberta, Canada. Biorefinery capacities ranged from 50,000 to 500,000 tonnes per year. Delivery cost is a linear function of transportation distance and can be combined with a polynomial harvest function to create a generalized delivered cost function for agricultural residues. The range in delivered cost is substantial and is an important consideration for the operating costs of a biorefinery.

  9. Myriant Succinic Acid Biorefinery | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Myriant Succinic Acid Biorefinery Myriant Succinic Acid Biorefinery This American Recovery and Reinvestment Act project will focus on the production of bio-succinic acid from a variety of feedstocks. ibr_arra_myriant.pdf (364.64 KB) More Documents & Publications Commercialization of Bio-Based Chemicals: A Successful Public-Private Partnership EA-1787: Final Environmental Assessment EA-1787: Finding of No Significant Impact

  10. Biorefinery Grant Announcement | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biorefinery Grant Announcement Biorefinery Grant Announcement February 28, 2007 - 10:28am Addthis Prepared Remarks for Energy Secretary Bodman Thank you all for coming. In his State of the Union address last month, President Bush set forth an aggressive plan to reduce America's consumption of gasoline over the next ten years. The President's "20 in 10" initiative would increase the amount of renewable and alternative fuels used in the transportation sector to 35 billion gallons a year

  11. Multitasking mesoporous nanomaterials for biorefinery applications

    SciTech Connect

    Kandel, Kapil

    2013-01-01

    in microalgae biorefinery. Two different integrated biorefinery systems are highlighted. (i) OM-MSNs are used to harvest microalgae and selectively sequester free fatty acids (FFAs). (ii) OM-MSNs are shown to selectively sequester FFAs and convert them into diesel-range liquid hydrocarbon fuels. A similar MSN supported metal nanoparticle catalyst is demonstrated to transform FFAs into green diesel with even greater activity and selectivity. The incorporation of a different organic functional group into MSN provides a selective adsorbent for separation and purification of α-tocopherol from microalgae oil. The functional group with electron deficient aromatic rings demonstrated high sequestration capacity and selectivity of {alpha}-tocopherol.

  12. Lignol Innovations, Inc. Demonstration-Scale Biorefinery | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Lignol Innovations, Inc. Demonstration-Scale Biorefinery Lignol Innovations, Inc. Demonstration-Scale Biorefinery The Lignol Innovations, Inc., biorefinery will produce cellulosic ethanol, high purity lignin, and furfural from hardwoods. ibr_demonstration_lignol.pdf (277.26 KB) More Documents & Publications Lignol Innovations Inc Top Value-Added Chemicals from Biomass - Volume II„Results of Screening for Potential Candidates from Biorefinery Lignin Cellulosic Sugar and Lignin

  13. Nationwide: The Nations First Commercial-Scale Biorefineries

    Energy.gov [DOE]

    EERE's investment aids in the creation of the first commercial-scale biorefineries in the United States.

  14. Five Things to Know about Biorefinery Investments | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Things to Know about Biorefinery Investments Five Things to Know about Biorefinery Investments October 15, 2014 - 1:46pm Addthis Five Things to Know about Biorefinery Investments Alicia Moulton Communications Specialist, Bioenergy Technologies Office This week, Abengoa's cellulosic ethanol plant in Hugoton, Kansas, will have its grand opening-right on the heels of POET-DSM's Project LIBERTY in September. Both biorefineries produce cellulosic ethanol, which has only been produced commercially in

  15. Second-Generation Biofuels from Multi-Product Biorefineries Combine...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    KB) More Documents & Publications 2015 Peer Review Presentations-Algal Feedstocks Algal Biofuels Strategy Workshop - Spring Event Algal Biology Toolbox Workshop Summary Report

  16. Sustainable Algal Biofuels Consortium

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Biofuels Consortium Thursday May 21, 2013 9.5.1.5, 9.5.1.7, 9.5.1.8 Dr. Gary Dirks (SABC Principal Investigator) Dr. John McGowen (SABC Project Manager) Arizona State University Dr. Philip Pienkos (SABC Director) NREL Cultivating Energy Solutions The primary goals were to evaluate biochemical conversion as a potentially viable strategy for converting all the components of algal biomass into biofuels and evaluate the fit-for-use properties of those algal derived fuels and fuel

  17. Integrated Biorefineries:Biofuels, Biopower, and Bioproducts

    Energy Saver

    ... and leads to conversion technologies optimized for the biomass feedstocks in each region. ... Bioprocess Algae Shenandoah, IA Pilot Algae Frontline Ames, IA Pilot Gasification Haldor ...

  18. NREL: Sustainable NREL - Integrated Biorefinery Research Facility

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Efficiency Features Natural ventilation through operable windows Daylighting Open air cubicles LED lights with lighting control system Sustainability Features Composting and ...

  19. NREL: Biomass Research - Capabilities in Integrated Biorefinery...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    U.S. Department of Energy. A yellow ladder is connected to the side of the right tank. A man at the far end of the room examines the pipes that lead to the tanks. In the...

  20. 2014 DOE Biomass Program Integrated Biorefinery Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... process 11 years of technology development +100 patents ongoing +700 M USD invested 104 M USD DOE loan guarantee federal financing for Hugoton project ...

  1. Economy Through Product Diversity: Integrated Biorefineries

    Office of Environmental Management (EM)

    ... Agricultural and forestry residues, algae, bagasse, corn cobs, corn stover, energy sorghum, hybrid poplar, lignocellulosic biomass, mill residues, sorted municipal solid waste, ...

  2. Development of Integrated Biorefineries | Department of Energy

    Energy Saver

    utilize input from all of the other platforms as well as the existing biofuels industry. ... of efficient processes for producing biofuels from corn fiber, agricultural residues, ...

  3. Economy Through Product Diversity: Integrated Biorefineries ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Achieving national energy and climate goals will require an economically viable and environmentally sustainable U.S. bioindustry. A crucial step in developing this industry is to ...

  4. Integrated Biorefinery Process | Department of Energy

    Energy.gov [DOE] (indexed site)

    At the February 12, 2009 quarterly joint Web conference of DOE's Biomass and Clean Cities ... Quarterly Biomass ProgramClean Cities States Web Conference: January 21, 2010 The Current ...

  5. Algal Biofuels Strategy Workshops

    Energy.gov [DOE]

    The U.S. Department of Energy’s Bioenergy Technologies Office (BETO) hosted the Algal Biology Toolbox Workshop on May 24–25, 2016, in San Diego, California. Because biological productivity is a key...

  6. Pathways for Algal Biofuels

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DEPARTMENT OF ENERGY BIOMASS PROGRAM Pathways for Algal Biofuels November 27, 2012 Daniel B. Fishman Lead Technology Development Manager 2 | Biomass Program eere.energy.gov Adds value to unproductive or marginal lands of a range of biofuel feedstocks suitable for diesel and aviation fuels Activities include R&D on algal feedstocks and issues related to the sustainable production of algae-derived biofuels. Algae Feedstocks Courtesy Sapphire Courtesy Sapphire Courtesy University of Arizona 3

  7. Algal Biofuels Strategy Workshop - Spring Event | Department...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Algal Biology Toolbox Workshop Summary Report Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels Strategy Workshop - Fall ...

  8. Advancing Commercialization of Algal Biofuels through Increased...

    Energy.gov [DOE] (indexed site)

    Advancing Commercialization of Algal Biofuels through Increased Biomass Productivity ... including: NAABB, Cornell's Marine Algal Biofuels Consortium, ATP3. * Participation in ...

  9. National Algal Biofuels Roadmap Review: Chapter 4

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary V: National Algal Biofuels Technology Review National Algal Biofuels Roadmap Review: Chapter 4 Valerie Harmon, Principal, Harmon Consulting

  10. Algal Biofuels Fact Sheet

    SciTech Connect

    2009-10-27

    This fact sheet provides information on algal biofuels, which are generating considerable interest around the world. They may represent a sustainable pathway for helping to meet the U.S. biofuel production targets set by the Energy Independence and Security Act of 2007.

  11. UOP Pilot-Scale Biorefinery

    Energy.gov [DOE]

    This project by UOP will leverage two commercially proven core technologies, pyrolysis and hydroconversion, into an integrated platform.

  12. To the Biorefinery: Delievered Forestland and Agricultural Resources Factsheet

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    the Biorefinery: Delivered Forestland and Agricultural Resources It can be challenging and costly to trans- port biomass feedstock supplies from the roadside, or farmgate, to a biorefinery. Given the geographic dispersion and low- bulk density of cellulosic feedstocks, cost- effective scaling of commercial biorefinery operations requires overcoming many challenges. The Biomass Research and Development Board's Feedstock Logistics Interagency Working Group identified four primary barriers related

  13. ClearFuels-Rentech Pilot-Scale Biorefinery

    Energy.gov [DOE]

    The ClearFuels-Rentech pilot-scale biorefinery will use Fisher-Tropsch gas-to-liquids technology to create diesel and jet fuel.

  14. Grand Opening of Abengoa's Biorefinery: Nation's Third Commercial...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The nation's third commercial-scale cellulosic ethanol biorefinery celebrates its grand ... The plant will produce cellulosic ethanol from non-edible corn stalks, stems, and leaves ...

  15. Regional Algal Feedstock Testbed

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    WBS: 1.3.5.111 March 25, 2015 Contact: Kimberly Ogden Department of Chemical and Environmental Engineering University of Arizona Tucson, Arizona USA ogden@email.arizona.edu Goal Statement * Create long-term cultivation data necessary to understand and promote algae biomass production. - Support the development of innovative technologies to capture and recycle water and nutrients - impaired water * M.8.1 Algal feedstock production - M.8.1.1 Development of technically viable, sustainable and cost

  16. Financing Advanced Biofuels, Biochemicals And Biopower In Integrated

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biorefineries | Department of Energy Financing Advanced Biofuels, Biochemicals And Biopower In Integrated Biorefineries Financing Advanced Biofuels, Biochemicals And Biopower In Integrated Biorefineries Afternoon Plenary Session: Current Trends in the Advanced Bioindustry Bioenergy Project Finance Mechanisms-Mark Riedy, Counsel, Kilpatrick, Townsend & Stockton LLP b13_riedy_ap-1.pdf (270.55 KB) More Documents & Publications U.S. And International Case Studies for Financing Bioeconomy

  17. National Algal Biofuels Technology Roadmap

    SciTech Connect

    Ferrell, John; Sarisky-Reed, Valerie

    2010-05-01

    The framework for National Algal Biofuels Technology Roadmap was constructed at the Algal Biofuels Technology Roadmap Workshop, held December 9-10, 2008, at the University of Maryland-College Park. The Workshop was organized by the Biomass Program to discuss and identify the critical challenges currently hindering the development of a domestic, commercial-scale algal biofuels industry. This Roadmap presents information from a scientific, economic, and policy perspectives that can support and guide RD&D investment in algal biofuels. While addressing the potential economic and environmental benefits of using algal biomass for the production of liquid transportation fuels, the Roadmap describes the current status of algae RD&D. In doing so, it lays the groundwork for identifying challenges that likely need to be overcome for algal biomass to be used in the production of economically viable biofuels.

  18. Succinic acid production on xylose-enriched biorefinery streams by Actinobacillus succinogenes in batch fermentation

    DOE PAGES [OSTI]

    Salvachua, Davinia; Mohagheghi, Ali; Smith, Holly; Bradfield, Michael F. A.; Nicol, Willie; Black, Brenna A.; Biddy, Mary J.; Dowe, Nancy; Beckham, Gregg T.

    2016-02-02

    Co-production of chemicals from lignocellulosic biomass alongside fuels holds promise for improving the economic outlook of integrated biorefineries. In current biochemical conversion processes that use thermochemical pretreatment and enzymatic hydrolysis, fractionation of hemicellulose-derived and cellulose-derived sugar streams is possible using hydrothermal or dilute acid pretreatment (DAP), which then offers a route to parallel trains for fuel and chemical production from xylose- and glucose-enriched streams. Succinic acid (SA) is a co-product of particular interest in biorefineries because it could potentially displace petroleum-derived chemicals and polymer precursors for myriad applications. Furthermore, SA production from biomass-derived hydrolysates has not yet been fully exploredmore » or developed.« less

  19. National Algal Biofuels Technology Roadmap

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Roadmap MAY 2010 BIOMASS PROGRAM U.S. DOE 2010. National Algal Biofuels Technology Roadmap. U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Biomass Program. Visit http://biomass.energy.gov for more information National Algal Biofuels Technology Roadmap A technology roadmap resulting from the National Algal Biofuels Workshop December 9-10, 2008 College Park, Maryland Workshop and Roadmap sponsored by the U.S. Department of Energy Office of Energy Efficiency and

  20. FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act...

    Office of Environmental Management (EM)

    FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated Algal Biorefinery (IABR) FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated ...

  1. U.S. Department of Energy Small-Scale Biorefineries Project Overview |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Small-Scale Biorefineries Project Overview U.S. Department of Energy Small-Scale Biorefineries Project Overview A chart indicating round one and round two selections for the U.S. Department of Energy Small-Scale Biorefineries Project Overview. U.S. Department of Energy Small-Scale Biorefineries Project Overview (31.45 KB) More Documents & Publications U.S. Department of Energy Small-Scale Biorefineries: Project Overview

  2. Advanced Algal Systems Fact Sheet

    Energy.gov [DOE]

    The Bioenergy Technologies Office’s Advanced Algal Systems Program is carrying out a long-term, applied R&D strategy to lower the costs of algal biofuel production by working with partners to develop revolutionary technologies and conduct crosscutting analyses to better understand the potential and challenges of the algae industry.

  3. Algal Biofuels Techno-Economic Analysis

    Energy.gov [DOE] (indexed site)

    Algal Biofuels Techno-Economic Analysis Algae Platform Review March 24, 2015 Alexandria, ... viability, eventual adoption of algal biofuelsproducts into U.S. market 2 NATIONAL ...

  4. Algal Biofuels Strategy Workshop - Fall Event

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1 Algal Biofuels Strategy Proceedings from the November 19-20, 2013, Workshop Mesa, ... (BETO's) Algae Program hosted the Algal Biofuels Strategy Workshop at Arizona State ...

  5. Integrated Plastic Substrates for OLED Lighting | Department of Energy

    Energy Saver

    Biorefinery Process Integrated Biorefinery Process At the February 12, 2009 quarterly joint Web conference of DOE's Biomass and Clean Cities programs, Larry Russo (U.S. Department of Energy, Biomass Program) described the progress of DOEs Biorefinery Projects. russo_20090212.pdf (883.64 KB) More Documents & Publications Quarterly Biomass Program/Clean Cities States Web Conference: January 21, 2010 The Current State of Technology for Cellulosic Ethanol Slide 1 Department of Energy

  6. Preprocessing Moist Lignocellulosic Biomass for Biorefinery Feedstocks

    SciTech Connect

    Neal Yancey; Christopher T. Wright; Craig Conner; J. Richard Hess

    2009-06-01

    Biomass preprocessing is one of the primary operations in the feedstock assembly system of a lignocellulosic biorefinery. Preprocessing is generally accomplished using industrial grinders to format biomass materials into a suitable biorefinery feedstock for conversion to ethanol and other bioproducts. Many factors affect machine efficiency and the physical characteristics of preprocessed biomass. For example, moisture content of the biomass as received from the point of production has a significant impact on overall system efficiency and can significantly affect the characteristics (particle size distribution, flowability, storability, etc.) of the size-reduced biomass. Many different grinder configurations are available on the market, each with advantages under specific conditions. Ultimately, the capacity and/or efficiency of the grinding process can be enhanced by selecting the grinder configuration that optimizes grinder performance based on moisture content and screen size. This paper discusses the relationships of biomass moisture with respect to preprocessing system performance and product physical characteristics and compares data obtained on corn stover, switchgrass, and wheat straw as model feedstocks during Vermeer HG 200 grinder testing. During the tests, grinder screen configuration and biomass moisture content were varied and tested to provide a better understanding of their relative impact on machine performance and the resulting feedstock physical characteristics and uniformity relative to each crop tested.

  7. Exploring the Utilization of Complex Algal Communities to Address Algal Pond Crash and Increase Annual Biomass Production for Algal Biofuels

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Exploring the Utilization of Complex Algal Communities to Address Algal Pond Crash and Increase Annual Biomass Production for Algal Biofuels March 2014 ii Table of Contents Executive Summary ................................................................................................................................................. iii A. Topic Summary: Fostering Algal Biofuels Production through Research & Development ................................... 1 Federal Goals (Strategic U.S.

  8. POET-DSM's Integrated Model | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    POET-DSM's Integrated Model POET-DSM's Integrated Model Breakout Session 1-C: Bringing Biorefineries into the Mainstream POET-DSM's Integrated Model Doug Berven, Vice President of ...

  9. Algal Biofuels; Algal Biofuels R&D at NREL (Brochure)

    SciTech Connect

    Not Available

    2010-09-01

    An overview of NREL's algal biofuels projects, including U.S. Department of Energy-funded work, projects with U.S. and international partners, and Laboratory Directed Research and Development projects.

  10. Algal Biofuels Can Make a Difference (Presentation)

    SciTech Connect

    Pienkos, P.

    2012-03-01

    Presentation given at the 2012 Department of Homeland Security Renewable Energy Roundtable on Algal Fuels.

  11. Advanced and Cellulosic Biofuels and Biorefineries: State of the Industry,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Policy and Politics | Department of Energy and Cellulosic Biofuels and Biorefineries: State of the Industry, Policy and Politics Advanced and Cellulosic Biofuels and Biorefineries: State of the Industry, Policy and Politics Afternoon Plenary Introduction Brent Erickson, Executive Vice President, BIO b13_erickson_day2-apintro.pdf (2.18 MB) More Documents & Publications Biomass 2013 Agenda Biomass 2012 Agenda U.S. Biofuels Industry: Mind the Gap

  12. DOE Announces $160 Million for Biorefinery Construction and Highlights New

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Agricultural Program to Promote Biofuels | Department of Energy 0 Million for Biorefinery Construction and Highlights New Agricultural Program to Promote Biofuels DOE Announces $160 Million for Biorefinery Construction and Highlights New Agricultural Program to Promote Biofuels February 22, 2006 - 12:11pm Addthis Funding Paves the Way for Diversifying America's Energy Mix DECATUR, IL - Energy Secretary Samuel W. Bodman, today announced $160 million in cost-shared funding over three years to

  13. Algal Biology Toolbox Workshop Summary Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Algal Biology Toolbox Workshop Summary Report summarizes an event hosted by the U.S. Department of Energy’s Bioenergy Technologies Office’s Advanced Algal Systems Program in May 2016. The purpose of the Algal Biology Toolbox Workshop was to collect input from experts in the field of algal biology regarding (1) the current state of algal biological tools, including our understanding of algal biology and biochemistry, available molecular toolboxes, omics databases, and other resources; (2) challenges to developing and applying a full suite of biological tools to improve algae performance and system robustness; and (3) strategies to advance progress toward commercial algal biofuels.

  14. SPECIAL_TERMS_AND_CONDITIONS_FOR_USE_IN_MOST_GRANTS_AND_COOPERATIVE...

    Office of Environmental Management (EM)

    Publications Financial Assistance Funding Opportunity Announcement DISCLAIMER: FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated Algal Biorefinery (IABR)...

  15. Algal Biodiesel via Innovative Harvesting and Aquaculture Systems

    Energy.gov [DOE] (indexed site)

    Algal Biodiesel via Innovative Harvesting and Aquaculture Systems March 23, 2015 Algal Feedstocks Jeffrey S. Kanel, Ph.D. Renewable Algal Energy, LLC (RAE) This presentation does ...

  16. BETO Hosts Biorefinery Optimization Workshop October 5-6 | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Hosts Biorefinery Optimization Workshop October 5-6 BETO Hosts Biorefinery Optimization Workshop October 5-6 October 4, 2016 - 5:30pm Addthis BETO Hosts Biorefinery Optimization Workshop October 5–6 The Biorefinery Optimization Workshop, hosted by the U.S. Department of Energy's Bioenergy Technologies Office (BETO), is being held on October 5-6, 2016, in Chicago, Illinois. The workshop will advance the understanding of the current capabilities, barriers, and opportunities for

  17. EERE Success Story—Nationwide: The Nation’s First Commercial-Scale Biorefineries

    Office of Energy Efficiency and Renewable Energy (EERE)

    EERE's investment aids in the creation of the first commercial-scale biorefineries in the United States.

  18. Algal Biofuels Strategy Workshops | Department of Energy

    Energy.gov [DOE] (indexed site)

    Sharpening Our Tools: Algal Biology Toolbox Workshop The U.S. Department of Energy's Bioenergy Technologies Office (BETO) hosted the Algal Biology Toolbox Workshop on May 24-25, ...

  19. Algal Biofuels Research Laboratory (Fact Sheet), NREL (National...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Algal Biofuels Research Laboratory Enabling fundamental understanding of algal biology and ... transformation procedure * Systems biology expertise: transcriptomics, proteomics, ...

  20. BETO Announces June Webinar: Algal Biofuels Consortium Releases...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    June Webinar: Algal Biofuels Consortium Releases Groundbreaking Research Results BETO Announces June Webinar: Algal Biofuels Consortium Releases Groundbreaking Research Results ...

  1. Controlling Accumulation of Fermentation Inhibitors in Biorefinery Recycle Water Using Microbial Fuel Cells

    SciTech Connect

    Borole, Abhijeet P; Mielenz, Jonathan R; Leak, David; Vishnivetskaya, Tatiana A; Hamilton, Choo Yieng; Andras, Calin

    2009-01-01

    Background Microbial fuel cells (MFC) and microbial electrolysis cells are electrical devices that treat water using microorganisms and convert soluble organic matter into electricity and hydrogen, respectively. Emerging cellulosic biorefineries are expected to use large amounts of water during production of ethanol. Pretreatment of cellulosic biomass results in production of fermentation inhibitors which accumulate in process water and make the water recycle process difficult. Use of MFCs to remove the inhibitory sugar and lignin degradation products from recycle water is investigated in this study. Results Use of an MFC to reduce the levels of furfural, 5-hydroxymethylfurfural, vanillic acid, 4- hydroxybenzaldehyde and 4-hydroxyacetophenone while simultaneously producing electricity is demonstrated here. An integrated MFC design approach was used which resulted in high power densities for the MFC, reaching up to 3700mW/m2 (356W/m3 net anode volume) and a coulombic efficiency of 69%. The exoelectrogenic microbial consortium enriched in the anode was characterized using a 16S rRNA clone library method. A unique exoelectrogenic microbial consortium dominated by -Proteobacteria (50%), along with -Proteobacteria (28%), -Proteobacteria (14%), -Proteobacteria (6%) and others was identified. The consortium demonstrated broad substrate specificity, ability to handle high inhibitor concentrations (5 to 20mM) with near complete removal, while maintaining long-term stability with respect to power production. Conclusions Use of MFCs for removing fermentation inhibitors has implications for: 1) enabling higher ethanol yields at high biomass loading in cellulosic ethanol biorefineries, 2) improved water recycle and 3) electricity production up to 25% of total biorefinery power needs.

  2. Algal Biofuels Research Laboratory (Fact Sheet)

    SciTech Connect

    Not Available

    2011-08-01

    This fact sheet provides information about Algal Biofuels Research Laboratory capabilities and applications at NREL's National Bioenergy Center.

  3. Membranes Key to Biorefinery Success | GE Global Research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Miming living organisms processes for biorefineries Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Miming living organisms processes for biorefineries Jimmy Lopez 2015.09.10 Membranes play a key role in the human body, filtering out bacteria and viruses and also ensuring cells absorb essential nutrients. They are

  4. Sustainable and efficient pathways for bioenergy recovery from low-value process streams via bioelectrochemical systems in biorefineries

    DOE PAGES [OSTI]

    Borole, Abhijeet P.

    2015-08-25

    Conversion of biomass into bioenergy is possible via multiple pathways resulting in production of biofuels, bioproducts and biopower. Efficient and sustainable conversion of biomass, however, requires consideration of many environmental and societal parameters in order to minimize negative impacts. Integration of multiple conversion technologies and inclusion of upcoming alternatives such as bioelectrochemical systems can minimize these impacts and improve conservation of resources such as hydrogen, water and nutrients via recycle and reuse. This report outlines alternate pathways integrating microbial electrolysis in biorefinery schemes to improve energy efficiency while evaluating environmental sustainability parameters.

  5. Algal Polyculture Conversion & Analysis

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Polyculture Conversion & Analysis Ron Pate This presentation does not contain any proprietary, confidential, or otherwise restricted information 24 March 2015 Algae Technology Area DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. 2 | Bioenergy Technologies

  6. 2011 Biomass Program Platform Peer Review. Integrated Biorefineries

    SciTech Connect

    Rossmeissl, Neil

    2012-02-01

    This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the 2011 U.S. Department of Energy Biomass Program’s IBR Platform Review meeting.

  7. Pilot-Scale MixotrophicAlgae Integrated Biorefinery(IBR)

    Energy.gov [DOE] (indexed site)

    Organization: BioProcess Algae This presentation does not contain any proprietary, confidential, or otherwise restricted information AGENDA * Project Overview * Project Approach * ...

  8. 2016 National Algal Biofuels Technology Review

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Review June 2016 Bioenergy Technologies Office National Algal Biofuels Technology Review U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Bioenergy Technologies Office June 2016 Review Editors: Amanda Barry, 1,5 Alexis Wolfe, 2 Christine English, 3,5 Colleen Ruddick, 4 and Devinn Lambert 5 2010 National Algal Biofuels Technology Roadmap: eere.energy.gov/bioenergy/pdfs/algal_biofuels_roadmap.pdf A complete list of roadmap and review contributors is available in the

  9. Turning Waste Into Fuel: How the INEOS Biorefinery Is Changing the Clean

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Game | Department of Energy Waste Into Fuel: How the INEOS Biorefinery Is Changing the Clean Energy Game Turning Waste Into Fuel: How the INEOS Biorefinery Is Changing the Clean Energy Game February 9, 2011 - 1:40pm Addthis Turning Waste Into Fuel: How the INEOS Biorefinery Is Changing the Clean Energy Game Paul Bryan Biomass Program Manager, Office of Energy Efficiency & Renewable Energy How does it work? Vegetative and agricultural waste reacts with oxygen to produce synthesis

  10. Algal Biofuels Strategy Workshop - Fall Event

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Chapter 1: Biology Cellular and Molecular Biology Convener: Stephanie Brunelle Discussion: The research goals for algal physiology and cell biology should include: * High yield ...

  11. Webinar: Algal Biofuels Consortium Releases Groundbreaking Research...

    Energy.gov [DOE] (indexed site)

    Jose Olivares of Los Alamos National Laboratory (LANL) presented the results of algal biofuels research conducted by the National Alliance for Advanced Biofuels and Bioproducts ...

  12. Major Nutrient Recycling for Sustained Algal Production

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... ability to remineralize biological N to ammonia * The ... 1776) cultivated with phosphorus replacement (% of ... into the algal oil removal process * Optimize growth ...

  13. Algal Biofuel Technologies | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biofuel Technologies Algal Biofuel Technologies At the November 6, 2008 joint Web conference of DOE's Biomass and Clean Cities programs, Al Darzins (National Renewable Energy ...

  14. Review of the algal biology program within the National Alliance for Advanced Biofuels and Bioproducts

    DOE PAGES [OSTI]

    Unkefer, Clifford Jay; Sayre, Richard Thomas; Magnuson, Jon K.; Anderson, Daniel B.; Baxter, Ivan; Blaby, Ian K.; Brown, Judith K.; Carleton, Michael; Cattolico, Rose Ann; Dale, Taraka T.; et al

    2016-06-21

    In 2010,when the National Alliance for Advanced Biofuels and Bioproducts (NAABB) consortium began, little was known about the molecular basis of algal biomass or oil production. Very few algal genome sequences were available and efforts to identify the best-producing wild species through bioprospecting approaches had largely stalled after the U.S. Department of Energy's Aquatic Species Program. This lack of knowledge included how reduced carbon was partitioned into storage products like triglycerides or starch and the role played by metabolite remodeling in the accumulation of energy-dense storage products. Furthermore, genetic transformation and metabolic engineering approaches to improve algal biomass and oilmore » yields were in their infancy. Genome sequencing and transcriptional profiling were becoming less expensive, however; and the tools to annotate gene expression profiles under various growth and engineered conditions were just starting to be developed for algae. It was in this context that an integrated algal biology program was introduced in the NAABB to address the greatest constraints limiting algal biomass yield. Our review describes the NAABB algal biology program, including hypotheses, research objectives, and strategies to move algal biology research into the twenty-first century and to realize the greatest potential of algae biomass systems to produce biofuels.« less

  15. Release of the 2016 National Algal Biofuels Technology Review...

    Energy Saver

    ... found in the Algal Biomass, Genetics, and Development chapter, focused on algal biology. ... a gathering of experts in the algal biology field to delve deeper and to discuss the ...

  16. New algal research journal has LANL scientists at the helm

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    New Algal Research journal has scientists at the helm New algal research journal has LANL scientists at the helm Algal Research will cover all areas of emerging technologies in ...

  17. NREL Report Provides Documentation of the Advanced Biorefinery Landscape

    Office of Energy Efficiency and Renewable Energy (EERE)

    The National Renewable Energy Laboratory (NREL) released a report in January 2015 on the status of the non-starch ethanol and renewable hydrocarbon biofuels industry in the United States. The report, “2013 Survey of Non-Starch Ethanol and Renewable Hydrocarbon Biofuels Producers,” is the first of its kind to provide publically available, open source documentation on the state of the advanced biorefinery landscape.

  18. Nanoparticle Technology for Biorefinery of Non-Food Source Feedstocks

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Nanoparticle Technology for Biorefinery of Non-Food Source Feedstocks Development of Microalgae-produced Biofuels Utilizing Mesoporous Nanoparticle Catalysts Recent high petroleum prices and the desire for increased energy independence and security have led to the rapid development of a variety of alternative fuels. Among these fuels, biodiesel is a biodegradable, nontoxic diesel produced from various oil feedstocks, including vegetable oils, animal fats, microalgae, and restaurant waste oils.

  19. Algal Biology Toolbox Workshop Brings Lead Experts to Inform...

    Office of Environmental Management (EM)

    Algal Biology Toolbox Workshop Brings Lead Experts to Inform Algae-Based Biofuel Strategy Algal Biology Toolbox Workshop Brings Lead Experts to Inform Algae-Based Biofuel Strategy ...

  20. Algal Biofuels Strategy Workshop - Fall Event | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    More Documents & Publications Algal Biology Toolbox Workshop Summary Report Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research Bioenergy Technologies Office Fiscal Year ...

  1. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technology Pathway More Documents & Publications Pathways for Algal Biofuels Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading 2013 Peer Review Presentations-Algae

  2. DOE Announces Webinars on Algal Biofuels Consortium Research...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Biofuels Consortium Research Results, Solar Energy Maps, and More DOE Announces Webinars on Algal Biofuels Consortium Research Results, Solar Energy Maps, and More June 10, ...

  3. Exploring the Utilization of Complex Algal Communities to Address...

    Energy.gov [DOE] (indexed site)

    (562.64 KB) More Documents & Publications Algal Biofuels Strategy Workshop - Fall Event Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research 2013 Peer ...

  4. Live webcast on groundbreaking results of Algal Biofuels Consortium...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Live webcast on Algal Biofuels Consortium Live webcast on groundbreaking results of Algal Biofuels Consortium, June 11 Jose A. Olivares will present an overview of the technologies ...

  5. NREL Algal Biofuels Projects and Partnerships (Brochure), NREL...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL is engaged in several algal biofuels research and development projects focused on improving the economics of the algal biofuels production process Novel Microalgal Production ...

  6. Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading...

    Office of Environmental Management (EM)

    Algal Lipid Upgrading Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading ... chosen to convert biomass into hydrocarbon fuels by the Bioenergy Technologies Office. ...

  7. Southern Pine Based on Biorefinery Center

    SciTech Connect

    Ragauskas, Arthur J.; Singh, Preet

    2013-12-20

    This program seeks to develop an integrated southern pine wood to biofuels/biomaterials processing facility on the Recipient’s campus, that will test advanced integrated wood processing technologies at the laboratory scale, including: The generation of the bioethanol from pines residues and hemicelluloses extracted from pine woodchips; The conversion of extracted woodchips to linerboard and bleach grade pulps; and the efficient conversion of pine residues, bark and kraft cooking liquor into a useful pyrolysis oil.

  8. Jobs and Economic Development Impact (JEDI) User Reference Guide: Fast Pyrolysis Biorefinery Model

    SciTech Connect

    Zhang, Y.; Goldberg, M.

    2015-02-01

    This guide -- the JEDI Fast Pyrolysis Biorefinery Model User Reference Guide -- was developed to assist users in operating and understanding the JEDI Fast Pyrolysis Biorefinery Model. The guide provides information on the model's underlying methodology, as well as the parameters and data sources used to develop the cost data utilized in the model. This guide also provides basic instruction on model add-in features and a discussion of how the results should be interpreted. Based on project-specific inputs from the user, the JEDI Fast Pyrolysis Biorefinery Model estimates local (e.g., county- or state-level) job creation, earnings, and output from total economic activity for a given fast pyrolysis biorefinery. These estimates include the direct, indirect and induced economic impacts to the local economy associated with the construction and operation phases of biorefinery projects.Local revenue and supply chain impacts as well as induced impacts are estimated using economic multipliers derived from the IMPLAN software program. By determining the local economic impacts and job creation for a proposed biorefinery, the JEDI Fast Pyrolysis Biorefinery Model can be used to field questions about the added value biorefineries might bring to a local community.

  9. Exploring the Utilization of Complex Algal Communities to Address Algal Pond Crash and Increase Annual Biomass Production for Algal Biofuels

    SciTech Connect

    Hamilton, Cyd E.

    2014-03-25

    This white paper briefly reviews the research literature exploring complex algal communities as a means of increasing algal biomass production via increased tolerance, resilience, and resistance to a variety of abiotic and biotic perturbations occurring within harvesting timescales. This paper identifies what data are available and whether more research utilizing complex communities is needed to explore the potential of complex algal community stability (CACS) approach as a plausible means to increase biomass yields regardless of ecological context and resulting in decreased algal-based fuel prices by reducing operations costs. By reviewing the literature for what we do and do not know, in terms of CACS methodologies, this report will provide guidance for future research addressing pond crash phenomena.

  10. 2016 National Algal Biofuels Technology Review Fact Sheet | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Review Fact Sheet 2016 National Algal Biofuels Technology Review Fact Sheet 2016 National Algal Biofuels Technology Review Fact Sheet algae_review_factsheet.pdf (412.59 KB) More Documents & Publications Advanced Algal Systems Fact Sheet Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research National Alliance for Advanced Biofuels and Bioproducts Synopsis (NAABB) Final Report

  11. Integrated Evaluation of Cost, Emissions, and Resource Potential...

    Office of Scientific and Technical Information (OSTI)

    Integrated Evaluation of Cost, Emissions, and Resource Potential for Algal Biofuels at the National Scale Citation Details In-Document Search Title: Integrated Evaluation of Cost, ...

  12. Synergistic Hydrogen Production in a Biorefinery via Bioelectrochemical Systems

    SciTech Connect

    Borole, A. P.; Hamilton, C. Y.; Schell, D. J.

    2012-01-01

    Microbial electrolysis cells are devices that use biocatalysis and electrolysis for production of hydrogen from organic matter. Biorefinery process streams contain fermentation by products and inhibitors which accumulate in the process stream if the water is recycled. These molecules also affect biomass to biofuel yields if not removed from the recycle water. The presence of sugar- and lignin- degradation products such as furfural, vanillic acid and 4-hydroxybenzaldehyde has been shown to reduce fermentation yields. In this work, we calculate the potential for hydrogen production using microbial electrolysis cells from these molecules as substrates. Conversion of these substrates to electricity is demonstrated in microbial fuel cells and will also be presented.

  13. Top Value-Added Chemicals from Biomass - Volume IIResults of Screening for Potential Candidates from Biorefinery Lignin

    SciTech Connect

    Holladay, John E.; White, James F.; Bozell, Joseph J.; Johnson, David

    2007-10-01

    product types. From this analysis a list of technical barriers was developed which can be used to identify research needs. Lignin presents many challenges for use in the biorefinery. Chemically it differs from sugars having a complex aromatic substructure. Unlike cellulose, which has a relatively simple substructure of glucose subunits, lignin has a high degree of variability in its structure which differs both from biomass source and from the recovery process used. In addition to its variability lignin is also reactive and to some degree less stable thermally and oxidatively to other biomass streams. What this means is that integrating a lignin process stream within the biorefinery will require identifying the best method to separate lignin from biomass cost-effectively.

  14. Algal Biology Program at Los Alamos

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Algal Biology Program at Los Alamos gets a star October 11, 2011 LOS ALAMOS, New Mexico, October 11, 2011-Richard Sayre, one of the nation's top specialists in algae and...

  15. Algal Biology Toolbox Workshop Summary Report

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biology Toolbox Workshop Summary Report San Diego, California May 2016 Summary report from the May 24-25, 2016, Algal Biology Toolbox Workshop in San Diego, California Workshop and ...

  16. Algal Feedstocks R&D Plenary

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Algae Total Directed Funding (Excluding Taxes and Programmatic Funding) 23.3 29.5 25.5 ... R&D 2022 targets: 1. Algal lipid extraction and upgrading 2. Whole algae ...

  17. Webinar: Targeted Algal Biofuels and Bioproducts FOA

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Energy Department’s Bioenergy Technologies Office will present a live informational webcast on the Targeted Algal Biomass and Bioproducts Funding Opportunity (DE-FOA-0001162) on October 8, 2014...

  18. 2016 National Algal Biofuels Technology Review

    Office of Energy Efficiency and Renewable Energy (EERE)

    Algae-based biofuels and bioproducts offer great promise in contributing to the U.S. Department of Energy (DOE) Bioenergy Technologies Office’s vision of a thriving and sustainable bioeconomy fueled by innovative technologies. The state of technology for producing algal biofuels continues to mature with ongoing investment by DOE and the private sector, but additional research, development, and demonstration is needed to achieve widespread deployment of affordable, scalable, and sustainable algal biofuels.

  19. Pathways for Algal Biofuels | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Pathways for Algal Biofuels Pathways for Algal Biofuels This is a presentation from the November 27, 2012, Sustainable Alternative Fuels Cost Workshop given by Daniel B. Fishman, of the Biomass Program. fishman_caafi_workshop.pdf (1.3 MB) More Documents & Publications Bioenergy Technologies Office Conversion R&D Pathway: Whole Algae Hydrothermal Liquefaction Technology Pathway Selection Effort Whole Algae Hydrothermal Liquefaction

  20. Direct conversion of algal biomass to biofuel

    DOEpatents

    Deng, Shuguang; Patil, Prafulla D; Gude, Veera Gnaneswar

    2014-10-14

    A method and system for providing direct conversion of algal biomass. Optionally, the method and system can be used to directly convert dry algal biomass to biodiesels under microwave irradiation by combining the reaction and combining steps. Alternatively, wet algae can be directly processed and converted to fatty acid methyl esters, which have the major components of biodiesels, by reacting with methanol at predetermined pressure and temperature ranges.

  1. DOE Announces up to $200 Million in Funding for Biorefineries | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy up to $200 Million in Funding for Biorefineries DOE Announces up to $200 Million in Funding for Biorefineries May 1, 2007 - 12:45pm Addthis Small- and full-scale projects total up to $585 million to advance President Bush's Twenty in Ten Initiative WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE will provide up to $200 million, over five years (FY'07-'11) to support the development of small-scale cellulosic biorefineries in the

  2. U.S. Department of Energy Selects First Round of Small-Scale Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Projects for Up to $114 Million in Federal Funding | Department of Energy First Round of Small-Scale Biorefinery Projects for Up to $114 Million in Federal Funding U.S. Department of Energy Selects First Round of Small-Scale Biorefinery Projects for Up to $114 Million in Federal Funding January 29, 2008 - 10:53am Addthis Ten percent commercial-scale biorefineries will help the nation meet new Renewable Fuels Standard WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman

  3. Algal Supply System Design - Harmonized Version

    SciTech Connect

    Abodeely, Jared; Stevens, Daniel; Ray, Allison; Newby, Deborah; Schaller, Kastli

    2013-03-01

    The objective of this design report is to provide an assessment of current technologies used for production, dewatering, and converting microalgae cultivated in open-pond systems to biofuel. The original draft design was created in 2011 and has subsequently been brought into agreement with the DOE harmonized model. The design report extends beyond this harmonized model to discuss some of the challenges with assessing algal production systems, including the ability to (1) quickly assess alternative algal production system designs, (2) assess spatial and temporal variability, and (3) perform large-scale assessments considering multiple scenarios for thousands of potential sites. The Algae Logistics Model (ALM) was developed to address each of these limitations of current modeling efforts to enable assessment of the economic feasibility of algal production systems across the United States. The (ALM) enables (1) dynamic assessments using spatiotemporal conditions, (2) exploration of algal production system design configurations, (3) investigation of algal production system operating assumptions, and (4) trade-off assessments with technology decisions and operating assumptions. The report discusses results from the ALM, which is used to assess the baseline design determined by harmonization efforts between U.S. DOE national laboratories. Productivity and resource assessment data is provided by coupling the ALM with the Biomass Assessment Tool developed at PNNL. This high-fidelity data is dynamically passed to the ALM and used to help better understand the impacts of spatial and temporal constraints on algal production systems by providing a cost for producing extracted algal lipids annually for each potential site.

  4. Assessment of Algal Farm Designs using a Dynamic Modular Approach

    SciTech Connect

    Abodeely, Jared M.; Stevens, Daniel M.; Ray, Allison E.; Newby, Deborah T.; Coleman, Andre M.; Cafferty, Kara G.

    2014-07-01

    The notion of renewable energy provides an importantmechanism for diversifying an energy portfolio,which ultimately would have numerous benefits including increased energy resilience, reduced reliance on foreign energysupplies, reduced GHG emissions, development of a green energy sector that contributes to economic growth,and providing a sustainable energy supply. The conversion of autotrophic algae to liquid transportation fuels is the basis of several decades of research to competitively bring energy-scale production into reality; however, many challenges still remain for making algal biofuels economically viable. Addressing current challenges associatedwith algal production systems, in part, requires the ability to assess spatial and temporal variability, rapidly evaluate alternative algal production system designs, and perform large-scale assessments considering multiple scenarios for thousands of potential sites. We introduce the development and application of the Algae Logistics Model (ALM) which is tailored to help address these challenges. The flexible nature of the ALM architecture allows the model to: 1) interface with external biomass production and resource assessment models, as well as other relevant datasets including those with spatiotemporal granularity; 2) interchange design processes to enable operational and economic assessments ofmultiple design configurations, including the integration of current and new innovative technologies; and 3) conduct trade-off analysis to help understand the site-specific techno-economic trade-offs and inform technology decisions. This study uses the ALM to investigate a baseline open-pond production system determined by model harmonization efforts conducted by the U.S. Department of Energy. Six sites in the U.S. southern-tierwere sub-selected and assessed using daily site-specific algaebiomass productivity data to determine the economic viability of large-scale open-pond systems. Results show that costs can vary

  5. Assessment of Algal Farm Designs Using a Dynamic Modular Approach

    SciTech Connect

    Abodeely, Jared; Coleman, Andre M.; Stevens, Daniel M.; Ray, Allison E.; Cafferty, Kara G.; Newby, Deborah T.

    2014-07-01

    The notion of renewable energy provides an important mechanism for diversifying an energy portfolio, which ultimately would have numerous benefits including increased energy resilience, reduction of foreign energy supplies, reduced GHG emissions, development of a green energy sector that contributes to economic growth, and providing a sustainable energy supply. The conversion of autotrophic algae to liquid transportation fuels is the basis of several decades of research to competitively bring energy-scale production into reality; however, many challenges still remain for making algal biofuels economically viable. Addressing current challenges associated with algal production systems, in part, requires the ability to assess spatial and temporal variability, rapidly evaluate alternative algal production system designs, and perform large-scale assessments considering multiple scenarios for thousands of potential sites. We introduce the Algae Logistics Model (ALM) which helps to address these challenges. The flexible nature of the ALM architecture allows the model to: 1) interface with external biomass production and resource assessment models, as well as other relevant datasets including those with spatiotemporal granularity; 2) interchange design processes to enable operational and economic assessments of multiple design configurations, including the integration of current and new innovative technologies; and 3) conduct trade-off analysis to help understand the site-specific techno-economic trade-offs and inform technology decisions. This study uses the ALM to investigate a baseline open-pond production system determined by model harmonization efforts conducted by the U.S. Department of Energy. Six sites in the U.S. southern-tier were sub-selected and assessed using daily site-specific algae biomass productivity data to determine the economic viability of large-scale open-pond systems. Results show that costs can vary significantly depending on location and biomass

  6. BETO Seeks Stakeholder Input on Achieving High Yields from Algal Feedstocks

    Energy.gov [DOE]

    The U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy’s Bioenergy Technologies Office (BETO) has released a Request for Information (RFI) titled “High Yields through Productivity and Integration Research.” BETO is seeking input from industry, academia, and other stakeholders regarding supply systems and services for the cultivation, logistics, and preprocessing of algal feedstocks.

  7. DOE Selects 3 Small-Scale Biorefinery Projects for up to $86...

    Office of Environmental Management (EM)

    ... Related Articles Biomass 2008: Fueling Our Future Conference DOE to Provide up to 40 Million in Funding for Small-Scale Biorefinery Projects in Wisconsin and Louisiana U.S. ...

  8. U.S. Department of Energy Small-Scale Biorefineries: Project Overview

    Energy.gov [DOE]

    Chart that shows which small-scale biorefineries were approved to receive DOE funding in 2008, a summary of their fields of focus, their cost share, and how much DOE is investing in them.

  9. EA-1705: Construction and Operation of a Proposed Cellulosic Biorefinery, Mascoma Corporation, Kinross Charter Township, Michigan

    Energy.gov [DOE]

    The frontier Project consists of the design, construction and operation of a biorefinery producing ethanol and other co-products from cellulosic materials utilizing a proprietary pretreatment and fermentation process.

  10. Critical evaluation and modeling of algal harvesting using dissolved air flotation. DAF Algal Harvesting Modeling

    DOE PAGES [OSTI]

    Zhang, Xuezhi; Hewson, John C.; Amendola, Pasquale; Reynoso, Monica; Sommerfeld, Milton; Chen, Yongsheng; Hu, Qiang

    2014-07-14

    In our study, Chlorella zofingiensis harvesting by dissolved air flotation (DAF) was critically evaluated with regard to algal concentration, culture conditions, type and dosage of coagulants, and recycle ratio. Harvesting efficiency increased with coagulant dosage and leveled off at 81%, 86%, 91%, and 87% when chitosan, Al3+, Fe3+, and cetyl trimethylammonium bromide (CTAB) were used at dosages of 70, 180, 250, and 500 mg g-1, respectively. The DAF efficiency-coagulant dosage relationship changed with algal culture conditions. In evaluating the influence of the initial algal concentration and recycle ratio revealed that, under conditions typical for algal harvesting, we found that itmore » is possible that the number of bubbles is insufficient. A DAF algal harvesting model was developed to explain this observation by introducing mass-based floc size distributions and a bubble limitation into the white water blanket model. Moreover, the model revealed the importance of coagulation to increase floc-bubble collision and attachment, and the preferential interaction of bubbles with larger flocs, which limited the availability of bubbles to the smaller sized flocs. The harvesting efficiencies predicted by the model agree reasonably with experimental data obtained at different Al3+ dosages, algal concentrations, and recycle ratios. Based on this modeling, critical parameters for efficient algal harvesting were identified.« less

  11. Critical evaluation and modeling of algal harvesting using dissolved air flotation. DAF Algal Harvesting Modeling

    SciTech Connect

    Zhang, Xuezhi; Hewson, John C.; Amendola, Pasquale; Reynoso, Monica; Sommerfeld, Milton; Chen, Yongsheng; Hu, Qiang

    2014-07-14

    In our study, Chlorella zofingiensis harvesting by dissolved air flotation (DAF) was critically evaluated with regard to algal concentration, culture conditions, type and dosage of coagulants, and recycle ratio. Harvesting efficiency increased with coagulant dosage and leveled off at 81%, 86%, 91%, and 87% when chitosan, Al3+, Fe3+, and cetyl trimethylammonium bromide (CTAB) were used at dosages of 70, 180, 250, and 500 mg g-1, respectively. The DAF efficiency-coagulant dosage relationship changed with algal culture conditions. In evaluating the influence of the initial algal concentration and recycle ratio revealed that, under conditions typical for algal harvesting, we found that it is possible that the number of bubbles is insufficient. A DAF algal harvesting model was developed to explain this observation by introducing mass-based floc size distributions and a bubble limitation into the white water blanket model. Moreover, the model revealed the importance of coagulation to increase floc-bubble collision and attachment, and the preferential interaction of bubbles with larger flocs, which limited the availability of bubbles to the smaller sized flocs. The harvesting efficiencies predicted by the model agree reasonably with experimental data obtained at different Al3+ dosages, algal concentrations, and recycle ratios. Based on this modeling, critical parameters for efficient algal harvesting were identified.

  12. Improved Estimates of Air Pollutant Emissions from Biorefinery

    SciTech Connect

    Tan, Eric C. D.

    2015-11-13

    We have attempted to use detailed kinetic modeling approach for improved estimation of combustion air pollutant emissions from biorefinery. We have developed a preliminary detailed reaction mechanism for biomass combustion. Lignin is the only biomass component included in the current mechanism and methane is used as the biogas surrogate. The model is capable of predicting the combustion emissions of greenhouse gases (CO2, N2O, CH4) and criteria air pollutants (NO, NO2, CO). The results are yet to be compared with the experimental data. The current model is still in its early stages of development. Given the acknowledged complexity of biomass oxidation, as well as the components in the feed to the combustor, obviously the modeling approach and the chemistry set discussed here may undergo revision, extension, and further validation in the future.

  13. National Algal Biofuels Technology Roadmap Update Webinar

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy Bioenergy Technologies Office (BETO) Advanced Algal Systems Program is in the process of updating the National Algal Biofuels Technology Roadmap published in 2010. It is the Program’s intention that this update include a thorough review of the scientific research and breakthroughs, novel and emerging technologies, as well as remaining barriers and challenges in the field through assistance from experts in the field. The purpose of this webinar is to provide expert reviewers information on why the Office is completing the update and how to provide input to the Roadmap Update.

  14. Sharpening Our Tools: Algal Biology Toolbox Workshop | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sharpening Our Tools: Algal Biology Toolbox Workshop Sharpening Our Tools: Algal Biology Toolbox Workshop May 24, 2016 8:00AM PDT to May 25, 2016 4:00PM PDT Hard Rock Hotel San ...

  15. Algal Biology Program at Los Alamos gets a star

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Algal Biology Program gets a star Algal Biology Program at Los Alamos gets a star Richard Sayre, one of the nation's top specialists in algae and energy-producing plant research, ...

  16. DOE National Algal Biofuels Technology Review Panel: Cultivation, Resources & Sustainability

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary V: National Algal Biofuels Technology Review DOE National Algal Biofuels Technology Review Panel: Cultivation, Resources & Sustainability Jacques Beaudry-Losique, Senior Vice President Corporate and Business Development, Algenol Biotech LLC

  17. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology...

    Office of Scientific and Technical Information (OSTI)

    MICROALGAE; ALGAL BIOMASS; HYDROCARBON BIOFUELS; BIOMASS TECHNOLOGIES OFFICE; NATIONAL RENEWABLE ENERGY LABORATORY; PACIFIC NORTHWEST NATIONAL LABORATORY; Bioenergy BIOMASS...

  18. Five Energy Department Accomplishments in Algal Biofuels | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Energy Department Accomplishments in Algal Biofuels Five Energy Department Accomplishments in Algal Biofuels September 30, 2014 - 12:38pm Addthis Cellana, Inc.’s Kona Demonstration Facility is working to increase yields of algal biofuel feedstock.| Photo courtesy of Cellana, Inc. Cellana, Inc.'s Kona Demonstration Facility is working to increase yields of algal biofuel feedstock.| Photo courtesy of Cellana, Inc. Alicia Moulton Communications Specialist, Bioenergy Technologies

  19. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway Citation Details In-Document Search Title: Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway This technology pathway case investigates the cultivation of algal biomass followed by further lipid extraction and upgrading to hydrocarbon biofuels. Technical barriers and key research needs have been assessed in order for the algal lipid extraction and upgrading

  20. Succinic Acid as a Byproduct in a Corn-based Ethanol Biorefinery

    SciTech Connect

    MBI International

    2007-12-31

    MBI endeavored to develop a process for succinic acid production suitable for integration into a corn-based ethanol biorefinery. The project investigated the fermentative production of succinic acid using byproducts of corn mill operations. The fermentation process was attuned to include raw starch, endosperm, as the sugar source. A clean-not-sterile process was established to treat the endosperm and release the monomeric sugars. We developed the fermentation process to utilize a byproduct of corn ethanol fermentations, thin stillage, as the source of complex nitrogen and vitamin components needed to support succinic acid production in A. succinogenes. Further supplementations were eliminated without lowering titers and yields and a productivity above 0.6 g l-1 hr-1was achieved. Strain development was accomplished through generation of a recombinant strain that increased yields of succinic acid production. Isolation of additional strains with improved features was also pursued and frozen stocks were prepared from enriched, characterized cultures. Two recovery processes were evaluated at pilot scale and data obtained was incorporated into our economic analyses.

  1. Final Technical Report: Improvement of Zymomonas mobilis for Commercial Use in Corn-based Biorefineries

    SciTech Connect

    Hitz, William D.

    2010-12-07

    Between 2007 and 2010 DuPont conducted a program under DOE award DE-FC36-07GO17056 to develop and improve Zymomonas mobilis as an ethanologen for commercial use in biorefineries to produce cellulosic ethanol. This program followed upon an earlier DOE funded program in which DuPont, in collaboration with the National Renewable Energy Laboratory (NREL) had developed a Zymomonas strain in conjunction with the development of an integrated cellulosic ethanol process. In the current project, we sought to maximize the utility of Zymomonas by adding the pathway to allow fermentation of the minor sugar arabinose, improve the utilization of xylose, improve tolerance to process hydrolysate and reduce the cost of producing the ethanologen. We undertook four major work streams to address these tasks, employing a range of approaches including genetic engineering, adaptation, metabolite and pathway analysis and fermentation process development. Through this project, we have developed a series of strains with improved characteristics versus the starting strain, and demonstrated robust scalability to at least the 200L scale. By a combination of improved ethanol fermentation yield and titer as well as reduced seed train costs, we have been able to reduce the capital investment and minimum ethanol selling price (MESP) by approximately 8.5% and 11% respectively vs. our starting point. Furthermore, the new strains we have developed, coupled with the learnings of this program, provide a platform for further strain improvements and advancement of cellulosic ethanol technology.

  2. Estimating Hydrogen Production Potential in Biorefineries Using Microbial Electrolysis Cell Technology

    SciTech Connect

    Borole, Abhijeet P; Mielenz, Jonathan R

    2011-01-01

    Microbial electrolysis cells (MECs) are devices that use a hybrid biocatalysis-electrolysis process for production of hydrogen from organic matter. Future biofuel and bioproducts industries are expected to generate significant volumes of waste streams containing easily degradable organic matter. The emerging MEC technology has potential to derive added- value from these waste streams via production of hydrogen. Biorefinery process streams, particularly the stillage or distillation bottoms contain underutilized sugars as well as fermentation and pretreatment byproducts. In a lignocellulosic biorefinery designed for producing 70 million gallons of ethanol per year, up to 7200 m3/hr of hydrogen can be generated. The hydrogen can either be used as an energy source or a chemical reagent for upgrading and other reactions. The energy content of the hydrogen generated is sufficient to meet 57% of the distillation energy needs. We also report on the potential for hydrogen production in existing corn mills and sugar-based biorefineries. Removal of the organics from stillage has potential to facilitate water recycle. Pretreatment and fermentation byproducts generated in lignocellulosic biorefinery processes can accumulate to highly inhibitory levels in the process streams, if water is recycled. The byproducts of concern including sugar- and lignin- degradation products such as furans and phenolics can also be converted to hydrogen in MECs. We evaluate hydrogen production from various inhibitory byproducts generated during pretreatment of various types of biomass. Finally, the research needs for development of the MEC technology and aspects particularly relevant to the biorefineries are discussed.

  3. EA-1850: Flambeau River BioFuels, Inc. Proposed Wood Biomass-to-Liquid Fuel Biorefinery, Park Falls, Wisconsin

    Energy.gov [DOE]

    NOTE: This EA has been cancelled. This EA will evaluate the environmental impacts of a proposal to provide federal funding to Flambeau River Biofuels (FRB) to construct and operate a biomass-to-liquid biorefinery in Park Falls, Wisconsin, on property currently used by Flambeau Rivers Paper, LLC (FRP) for a pulp and paper mill and Johnson Timber Corporation's (JTC) Summit Lake Yard for timber storage. This project would design a biorefinery which would produce up to 1,150 barrels per day (bpd) of clean syncrude. The biorefinery would also supply steam to the FRP mill, meeting the majority of the mill's steam demand and reducing or eliminating the need for the existing biomass/coal-fired boiler. The biorefinery would also include a steam turbine generator that will produce "green" electrical power for use by the biorefinery or for sale to the electric utility.

  4. Refining each process step to accelerate the development of biorefineries

    DOE PAGES [OSTI]

    Chandra, Richard P.; Ragauskas, Art J.

    2016-06-21

    Research over the past decade has been mainly focused on overcoming hurdles in the pretreatment, enzymatic hydrolysis, and fermentation steps of biochemical processing. Pretreatments have improved significantly in their ability to fractionate and recover the cellulose, hemicellulose, and lignin components of biomass while producing substrates containing carbohydrates that can be easily broken down by hydrolytic enzymes. There is a rapid movement towards pretreatment processes that incorporate mechanical treatments that make use of existing infrastructure in the pulp and paper industry, which has experienced a downturn in its traditional markets. Enzyme performance has also made great strides with breakthrough developments inmore » nonhydrolytic protein components, such as lytic polysaccharide monooxygenases, as well as the improvement of enzyme cocktails.The fermentability of pretreated and hydrolyzed sugar streams has been improved through strategies such as the use of reducing agents for detoxification, strain selection, and strain improvements. Although significant progress has been made, tremendous challenges still remain to advance each step of biochemical conversion, especially when processing woody biomass. In addition to technical and scale-up issues within each step of the bioconversion process, biomass feedstock supply and logistics challenges still remain at the forefront of biorefinery research.« less

  5. MBI Biorefinery: Corn to Biomass, Ethanol to Biochemicals and Biomaterials

    SciTech Connect

    2006-02-17

    The project is a continuation of DOE-funded work (FY02 and FY03) that has focused on the development of the ammonia fiber explosion (AFEX) pretreatment technology, fermentation production of succinic acid and new processes and products to enhance dry mill profitability. The primary objective for work beginning in April 2004 and ending in November 2005 is focus on the key issues related to the: (1) design, costing and construction plan for a pilot AFEX pretreatment system, formation of a stakeholder development team to assist in the planning and design of a biorefinery pilot plant, continued evaluation of corn fractionation technologies, corn oil extraction, AFEX treatment of corn fiber/DDGs; (2) development of a process to fractionate AFEX-treated corn fiber and corn stover--cellulose and hemicellulose fractionation and sugar recovery; and (3) development of a scalable batch succinic acid production process at 500 L at or below $.42/lb, a laboratory scale fed-batch process for succinic acid production at or below $.40/lb, a recovery process for succinic acid that reduces the cost of succinic acid by $.02/lb and the development of an acid tolerant succinic acid production strain at lab scale (last objective not to be completed during this project time period).

  6. Algal Culture Management and Strain Selection Workshop

    Office of Energy Efficiency and Renewable Energy (EERE)

    ATP3 (Algae Testbed Public-Private Partnership) will be hosting the Microalgal Culture Management and Strain Selection Workshop August 24–28, 2015, at The University of Texas at Austin. Topics will include isolating and identifying microalgae, handling and managing microalgal cultures, screening for desirable characteristics, genetically improving strains, and analyzing lipids and higher-value products. Workshop modules will include hands-on bioprospecting, performing sample measurements, monitoring cultures for contaminants, and analyzing algal biomass composition.

  7. National Algal Biofuels Technology Roadmap | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Roadmap National Algal Biofuels Technology Roadmap The U.S. Department of Energy (DOE) Biomass Program's National Algal Biofuels Technology Roadmap was prepared with the input of more than 200 scientists, engineers, industry representatives, research managers, and other stakeholders, this document represents the synthesis of the Biomass Program's National Algal Biofuels Technology Roadmap Workshop, comments gathered during a public comment period, and supporting scientific literature. This

  8. 2015 Peer Review Presentations-Algal Feedstocks | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Feedstocks 2015 Peer Review Presentations-Algal Feedstocks The Bioenergy Technologies Office hosted its 2015 Project Peer Review on March 23-27, 2015, at the Hilton Mark Center in Alexandria, Virginia. The presentations from the algal feedstocks sessions are available to view and download below. For detailed session descriptions and presentation titles, view the 2015 Project Peer Review Program Booklet. algae_olivares_9511.pdf (6.43 MB) algae_huntley_135120.pdf (1.58 MB)

  9. Process for Converting Algal Oil to Alternative Aviation Fuel - Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Innovation Portal Process for Converting Algal Oil to Alternative Aviation Fuel Los Alamos National Laboratory Contact LANL About This Technology The conversion process uses a Kolbe-based method of converting the fatty acids from the algal lipid triglycerides to fuel. The conversion process uses a Kolbe-based method of converting the fatty acids from the algal lipid triglycerides to fuel. Technology Marketing Summary Conversion of triglyceride oils extracted from algae-derived lipids into

  10. Hydrocyclone Separation of Targeted Algal Intermediates and Products

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Algal Feedstocks Research and Development Richard Brotzman Argonne National Laboratory 1.3.3.100: Hydrocyclone Separation of Targeted Algal Intermediates and Products This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 Project Goals  Evaluate an energy-efficient, separation process - Technology: Hydrocyclone separation of components in a fluid mixture - Main application: Dewatering of algal cultures  Program tasks - Establish baseline

  11. Biomass Biorefinery for the production of Polymers and Fuels

    SciTech Connect

    Dr. Oliver P. Peoples

    2008-05-05

    The conversion of biomass crops to fuel is receiving considerable attention as a means to reduce our dependence on foreign oil imports and to meet future energy needs. Besides their use for fuel, biomass crops are an attractive vehicle for producing value added products such as biopolymers. Metabolix, Inc. of Cambridge proposes to develop methods for producing biodegradable polymers polyhydroxyalkanoates (PHAs) in green tissue plants as well as utilizating residual plant biomass after polymer extraction for fuel generation to offset the energy required for polymer extraction. The primary plant target is switchgrass, and backup targets are alfalfa and tobacco. The combined polymer and fuel production from the transgenic biomass crops establishes a biorefinery that has the potential to reduce the nation’s dependence on foreign oil imports for both the feedstocks and energy needed for plastic production. Concerns about the widespread use of transgenic crops and the grower’s ability to prevent the contamination of the surrounding environment with foreign genes will be addressed by incorporating and expanding on some of the latest plant biotechnology developed by the project partners of this proposal. This proposal also addresses extraction of PHAs from biomass, modification of PHAs so that they have suitable properties for large volume polymer applications, processing of the PHAs using conversion processes now practiced at large scale (e.g., to film, fiber, and molded parts), conversion of PHA polymers to chemical building blocks, and demonstration of the usefulness of PHAs in large volume applications. The biodegradability of PHAs can also help to reduce solid waste in our landfills. If successful, this program will reduce U.S. dependence on imported oil, as well as contribute jobs and revenue to the agricultural economy and reduce the overall emissions of carbon to the atmosphere.

  12. 5th International Conference on Algal Biomass, Biofuels and Bioproducts

    Energy.gov [DOE]

    The 5th International Conference on Algal Biomass, Biofuels and Bioproducts provides direct interaction for attending delegates with scientific and technical leaders in this field.

  13. Energy Department Announces $15 Million for Advancements in Algal...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in producing 3,700 gallons of algal biofuel intermediate (or equivalent dry weight ... In general, "biofuel intermediates" are biomass-based feedstocks that can replace ...

  14. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology...

    Office of Scientific and Technical Information (OSTI)

    This technology pathway case investigates the cultivation of algal biomass followed by ... Sponsoring Org: USDOE Office of Energy Efficiency and Renewable Energy Biomass Program ...

  15. Fueling Future with Algal Genomics (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    carbon cycle, and are prominent candidates for biofuel production. The US Department of Energy Joint Genome Institute (JGI) is leading the world in algal genome sequencing...

  16. BETO Seeks Stakeholder Input on Achieving High Yields from Algal...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    BETO is seeking input from industry, academia, and other stakeholders regarding supply systems and services for the cultivation, logistics, and preprocessing of algal feedstocks. ...

  17. Efficient Use of Algal Biomass Residues for Biopower Production...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    on the conversion of algal residues to biogasbiopower via Anaerobic Digestion (AD) * Specific objectives include: * Optimize biogas production from spent microalgae to ...

  18. Algal Biofuels Techno-Economic Analysis | Bioenergy | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Biofuels Techno-Economic Analysis To promote an understanding of the challenges and ... (TEA) for the production and conversion of algal biomass into biofuels and coproducts. ...

  19. 6th International Conference on Algal Biomass, Biofuels and Bioproduct...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The conference will cover all areas of emerging technologies in the algal biomass field-from biology, biomass production, cultivation, harvesting, and extraction to feedstock ...

  20. Degradation of Algal Cell Walls by Enzymes and Dyes - Energy...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Degradation of Algal Cell Walls by Enzymes and Dyes National Renewable Energy Laboratory ... for extracting the oils from the cells by first weakening the cell walls using enzymes. ...

  1. EERE Energy Impacts: Biorefineries Give Local Farmers Opportunities for Additional Income

    Energy.gov [DOE]

    Selling corn stover—the non-edible corn stalks, husks, and leaves of a corn plant—after the corn harvest has generated a new revenue stream for many farmers. Biorefineries buy the corn plant residue from farmers and turn it into cellulosic ethanol, allowing farmers to "add revenue without adding acres."

  2. Grand Opening of Abengoa’s Biorefinery: Nation’s Third Commercial-Scale Facility

    Energy.gov [DOE]

    The nation’s third commercial-scale cellulosic ethanol biorefinery celebrates its grand opening on October 17, 2014, in Hugoton, Kansas. The Abengoa Bioenergy Biomass of Kansas (ABBK) facility is the first of its kind to use a proprietary enzymatic hydrolysis process which turns cellulosic biomass into fermentable sugars that are then converted into transportation fuels.

  3. Accelerating Commercialization of Algal Biofuels Through Partnerships (Brochure)

    SciTech Connect

    Not Available

    2011-10-01

    This brochure describes National Renewable Energy Laboratory's (NREL's) algal biofuels research capabilities and partnership opportunities. NREL is accelerating algal biofuels commercialization through: (1) Advances in applied biology; (2) Algal strain development; (3) Development of fuel conversion pathways; (4) Techno-economic analysis; and (5) Development of high-throughput lipid analysis methodologies. NREL scientists and engineers are addressing challenges across the algal biofuels value chain, including algal biology, cultivation, harvesting and extraction, and fuel conversion. Through partnerships, NREL can share knowledge and capabilities in the following areas: (1) Algal Biology - A fundamental understanding of algal biology is key to developing cost-effective algal biofuels processes. NREL scientists are experts in the isolation and characterization of microalgal species. They are identifying genes and pathways involved in biofuel production. In addition, they have developed a high-throughput, non-destructive technique for assessing lipid production in microalgae. (2) Cultivation - NREL researchers study algal growth capabilities and perform compositional analysis of algal biomass. Laboratory-scale photobioreactors and 1-m2 open raceway ponds in an on-site greenhouse allow for year-round cultivation of algae under a variety of conditions. A bioenergy-focused algal strain collection is being established at NREL, and our laboratory houses a cryopreservation system for long-term maintenance of algal cultures and preservation of intellectual property. (3) Harvesting and Extraction - NREL is investigating cost-effective harvesting and extraction methods suitable for a variety of species and conditions. Areas of expertise include cell wall analysis and deconstruction and identification and utilization of co-products. (4) Fuel Conversion - NREL's excellent capabilities and facilities for biochemical and thermochemical conversion of biomass to biofuels are being

  4. Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research algal_biofuels_factsheet.pdf (96.06 KB) More Documents & Publications Advanced Algal Systems Fact Sheet 2016 National Algal Biofuels Technology Review 2015 Peer Review Presentations-Algal Feedstocks

  5. Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Algal Lipid Upgrading Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading Algal lipid upgrading is one of eight priority pathways chosen to convert biomass into hydrocarbon fuels by the Bioenergy Technologies Office. These pathways were down-selected from an initial list of 18. Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading (490.16 KB) More Documents & Publications Pathways for Algal Biofuels Algal Lipid Extraction and

  6. Method and system of culturing an algal mat

    SciTech Connect

    Das, Keshav C; Cannon, Benjamin R; Bhatnagar, Ashish; Chinnasamy, Senthil

    2014-05-13

    A system and method for culturing algae are presented. The system and method utilize a fog of growth medium that is delivered to an algal mat generator along with a stream of CO.sub.2 to promote growth of algal cells contained in the generator.

  7. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway

    Energy.gov [DOE]

    This technology pathway case investigates the cultivation of algal biomass followed by further lipid extraction and upgrading to hydrocarbon biofuels. Technical barriers and key research needs have been assessed in order for the algal lipid extraction and upgrading pathway to be competitive with petroleum-derived gasoline-, diesel-, and jet-range hydrocarbon blendstocks.

  8. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway

    SciTech Connect

    Davis, R.; Biddy, M.; Jones, S.

    2013-03-01

    This technology pathway case investigates the cultivation of algal biomass followed by further lipid extraction and upgrading to hydrocarbon biofuels. Technical barriers and key research needs have been assessed in order for the algal lipid extraction and upgrading pathway to be competitive with petroleum-derived gasoline-, diesel-, and jet-range hydrocarbon blendstocks.

  9. EA-1865: Department of Energy Loan Guarantee to Kior, Inc., for Biorefinery Facilities in Georgia, Mississippi, and Texas

    Energy.gov [DOE]

    This EA will evaluate the environmental impacts of a proposal to issue a Federal loan guarantee to Kior, Inc., for biorefinery facilities in Georgia, Mississippi, and Texas. This EA is on hold.

  10. Summative Mass Analysis of Algal Biomass … Integration of Analytical...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... and Shodex sugar SP0810 or Dionex PA-1 anion exchange or equivalent column) or spectrophotometer * Autoclave * Dry block * Consumables as detailed in the procedures 14.2 List of ...

  11. Renewable Diesel from Algal Lipis: An Integrated Baseline for...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    commercial product, process, or ... with model-based quantitative metrics for cost, scale-up potential, and sustainability. ... on regulatory policy restrictions, the ...

  12. Biochemical Process Development and Integration | Bioenergy | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Biochemical Process Development and Integration Our mission is to develop, test, and demonstrate improved biochemically catalyzed processes to produce fuels and chemicals from lignocellulosic biomass. Photo of NREL's High Bay Lab at the Integrated Biorefinery Research Facility, showing people in hard hats working on the bay floor and amongst the metal tubes and pipes. Our research scope spans bench-scale research and development (R&D) of diverse biomass conversion and separation processes to

  13. Production of biofuel using molluscan pseudofeces derived from algal cells

    DOEpatents

    Das, Keshav C.; Chinnasamy, Senthil; Shelton, James; Wilde, Susan B.; Haynie, Rebecca S.; Herrin, James A.

    2012-08-28

    Embodiments of the present disclosure provide for novel strategies to harvest algal lipids using mollusks which after feeding algae from the growth medium can convert algal lipids into their biomass or excrete lipids in their pseudofeces which makes algae harvesting energy efficient and cost effective. The bioconverter, filter-feeding mollusks and their pseudofeces can be harvested and converted to biocrude using an advanced thermochemical liquefaction technology. Methods, systems, and materials are disclosed for the harvest and isolation of algal lipids from the mollusks, molluscan feces and molluscan pseudofeces.

  14. Identification and genetic characterization of maize cell wall variation for improved biorefinery feedstock characteristics

    SciTech Connect

    Pauly, Markus; Hake, Sarah

    2013-10-31

    The objectives of this program are to 1) characterize novel maize mutants with altered cell walls for enhanced biorefinery characteristics and 2) find quantitative trait loci (QTLs) related to biorefinery characteristics by taking advantage of the genetic diversity of maize. As a result a novel non-transgenic maize plant (cal1) has been identified, whose stover (leaves and stalk) contain more glucan in their walls leading to a higher saccharification yield, when subjected to a standard enzymatic digestion cocktail. Stacking this trait with altered lignin mutants yielded evene higher saccharification yields. Cal-1 mutants do not show a loss of kernel and or biomass yield when grown in the field . Hence, cal1 biomass provides an excellent feedstock for the biofuel industry.

  15. Simulating Pelletization Strategies to Reduce the Biomass Supply Risk at America’s Biorefineries

    SciTech Connect

    Jacob J. Jacobson; Shane Carnohan; Andrew Ford; Allyson Beall

    2014-07-01

    Demand for cellulosic ethanol and other advanced biofuels has been on the rise, due in part to federal targets enacted in 2005 and extended in 2007. The industry faces major challenges in meeting these worthwhile and ambitious targets. The challenges are especially severe in the logistics of timely feedstock delivery to biorefineries. Logistical difficulties arise from seasonal production that forces the biomass to be stored in uncontrolled field-side environments. In this storage format physical difficulties arise; transportation is hindered by the low bulk density of baled biomass and the unprotected material can decay leading to unpredictable losses. Additionally, uncertain yields and contractual difficulties can exacerbate these challenges making biorefineries a high-risk venture. Investors’ risk could limit business entry and prevent America from reaching the targets. This paper explores pelletizer strategies to convert the lignocellulosic biomass into a denser form more suitable for storage. The densification of biomass would reduce supply risks, and the new system would outperform conventional biorefinery supply systems. Pelletizer strategies exhibit somewhat higher costs, but the reduction in risk is well worth the extra cost if America is to grow the advanced biofuels industry in a sustainable manner.

  16. Algal Biofuels R&D at NREL (Brochure)

    SciTech Connect

    Not Available

    2012-09-01

    An overview of NREL's algal biofuels projects, including U.S. Department of Energy-funded work, projects with U.S. and international partners, and Laboratory Directed Research and Development projects.

  17. Webinar: Algal Biofuels Consortium Releases Groundbreaking Research Results

    Energy.gov [DOE]

    Dr. Jose Olivares of Los Alamos National Laboratory (LANL) presented the results of algal biofuels research conducted by the National Alliance for Advanced Biofuels and Bioproducts (NAABB) on June 11, 2014.

  18. 6th International Conference on Algal Biomass, Biofuels and Bioproducts

    Energy.gov [DOE]

    The 6th International Conference on Algal Biomass, Biofuels and Bioproducts will be held June 26–29, 2016, in San Diego, California. The meeting will gather scientific and technical leaders in the algal research field. Emphasis will be placed on the latest technical and scientific advances. The conference will cover all areas of emerging technologies in the algal biomass field—from biology, biomass production, cultivation, harvesting, and extraction to feedstock conversion into fuels and bioproducts, as well as econometrics and sustainability analyses. The U.S. Department of Energy’s Bioenergy Technologies Office Advanced Algal Systems Team will be in attendance, and Program Manager Alison Goss Eng will be giving a plenary presentation.

  19. BETO Live Webinar: Algal Biofuels Consortium Releases Groundbreaking Research Results

    Energy.gov [DOE]

    Dr. Jose Olivares of Los Alamos National Laboratory will present the results of algal biofuels research conducted by the National Alliance for Advanced Biofuels and Bioproducts (NAABB). NAABB is...

  20. 2016 National Algal Biofuels Technology Review Fact Sheet

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    National Algal Biofuels Technology Review Algae-based biofuels and bioproducts offer great promise in contributing to the U.S. Department of Energy (DOE) Bioenergy Technologies Office's (BETO's) vision of a thriving and sustainable bioeconomy fueled by innovative technologies. The state of technology for producing algal biofuels continues to mature with ongoing investment by DOE and the private sector, but additional research, development, and demonstration (RD&D) is needed to achieve

  1. DOE Announces Webinars on Property Assessed Clean Energy Financing, Algal

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass and Bioproducts Funding Opportunity, and More | Department of Energy Property Assessed Clean Energy Financing, Algal Biomass and Bioproducts Funding Opportunity, and More DOE Announces Webinars on Property Assessed Clean Energy Financing, Algal Biomass and Bioproducts Funding Opportunity, and More October 1, 2014 - 5:51pm Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies, to training for the

  2. Biogas production from anaerobic digestion of Spirulina maxima algal biomass

    SciTech Connect

    Samson, R.; LeDuy, A.

    1982-08-01

    The photosynthetic spectrum of solar energy could be exploited for the production of chemical energy of methane through the combined algal-bacterial process. In this process, the algae are mass produced from light and from carbon in the first step. The algal biomass is then used as a nutrient for feeding the anaerobic digester, in the second step, for the production of methane by anaerobic bacteria. The carbon source for the production of algal biomass could be either organic carbon from wastewaters (for eucaryotic algae), or carbon dioxide from the atmosphere or from the combustion exhaust gases (for both prokaryotic and eukaryotic algae). The technical feasibility data on the anaerobic digestion of algal biomass have been reported for many species of algae including macroscopic algae and microscopic algae. Research being conducted in the authors' laboratory consists of using the semimicroscopic blue-green alga Spirulina maxima as the sole substrate for this combined algal-bacterial process. This species of alga is very attractive for the process because of its capability of using the atmospheric carbon dioxide as carbon source and its simple harvesting methods. Furthermore, it appeared that the fermentability of S. maxima is significantly higher than other microscopic algae. This communication presents the results on the anaerobic inoculum development by the adaptation technique. This inoculum was then used for the semicontinuous anaerobic digestion of S. maxima algal biomass. The evolutions of biogas production and composition, biogas yield, total volatile fatty acids, alkalinity, ammonia nitrogen, pH, and electrode potential were followed.

  3. Algal bioflocculation and energy conservation in microalgal sewage ponds

    SciTech Connect

    Eisenberg, D.M.; Koopman, B.; Benemann, J.R.; Oswald, W.J.

    1981-01-01

    Controlled bioflocculation for harvesting of microalgae produced during municipal wastewater treatment in high-rate ponds was investigated. Nonflocculant algal cultures were produced in high-rate ponds operated at very high dilution rates or with poor mixing. Bioflocculation of such cultures was achieved by isolating them in secondary ponds, but isolation periods of up to 29 days were required. In-pond sedimentation of flocculant algal cultures produced by the isolation technique resulted in algal removals consistently exceeding 80%. When high-rate ponds were operated with improved mixing and at moderate-to-high dilution rates, flocculant algal cultures were developed. The settleability of flocculant algal cultures produced in this manner averaged 76 to 80% when measured in 24-h-detention Imhoff cones and 71% when measured in 48-h-detention settling ponds. It is estimated that, under suitable climate conditions, a high-rate pond system employing bioflocculation-sedimentation for algal removal would require less than one-half the direct energy input of an equivalently sized activated sludge or trickling filter plant. This requirement could be provided entirely through complete utilization of biogas produced from anaerobic digestion of primary (sewage) sludge.

  4. Algal Biofuels Strategy Workshop - Fall Event

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The best models are those that integrate biomass growth equations with nutrient (CO 2 , nitrate, phosphorus) uptake and fluid dynamics (mixing, laminar versus turbulent flow, ...

  5. Catalytic Hydrothermal Gasification of Lignin-Rich Biorefinery Residues and Algae Final Report

    SciTech Connect

    Elliott, Douglas C.; Neuenschwander, Gary G.; Hart, Todd R.; Rotness, Leslie J.; Zacher, Alan H.; Santosa, Daniel M.; Valkenburt, Corinne; Jones, Susanne B.; Tjokro Rahardjo, Sandra A.

    2009-11-03

    This report describes the results of the work performed by PNNL using feedstock materials provided by the National Renewable Energy Laboratory, KL Energy and Lignol lignocellulosic ethanol pilot plants. Test results with algae feedstocks provided by Genifuel, which provided in-kind cost share to the project, are also included. The work conducted during this project involved developing and demonstrating on the bench-scale process technology at PNNL for catalytic hydrothermal gasification of lignin-rich biorefinery residues and algae. A technoeconomic assessment evaluated the use of the technology for energy recovery in a lignocellulosic ethanol plant.

  6. Microsoft PowerPoint - Biorefinery Optimization - LanzaTech rev2.pptx

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Monetizing Biorefinery Residue and Waste Streams Laurel Harmon, Ph.D. VP, Government Relations 2015 LanzaTech. All rights reserved. 2 A Carbon Smart World 65% of 2°carbon budget: USED 1870-2011: 1900 GtCO 2 Remaining: 1000 GtCO 2 Must stay in the ground 3 Gas Feed Stream Gas Reception Compression Fermentation Recovery Product Tank Recycling Carbon Gas fermentation technology converts C- rich gases to fuels and chemicals Proprietary Microbe Performance milestones achieved and exceeded for

  7. Consortium for Algal Biofuel Commercialization (CAB-COMM) Final Report

    SciTech Connect

    Mayfield, Stephen P.

    2015-12-04

    The Consortium for Algal Biofuel Commercialization (CAB-Comm) was established in 2010 to conduct research to enable commercial viability of alternative liquid fuels produced from algal biomass. The main objective of CAB-Comm was to dramatically improve the viability of algae as a source of liquid fuels to meet US energy needs, by addressing several significant barriers to economic viability. To achieve this goal, CAB-Comm took a diverse set of approaches on three key aspects of the algal biofuels value chain: crop protection; nutrient utilization and recycling; and the development of genetic tools. These projects have been undertaken as collaboration between six academic institutions and two industrial partners: University of California, San Diego; Scripps Institution of Oceanography; University of Nebraska, Lincoln; Rutgers University; University of California, Davis; Johns Hopkins University; Sapphire Energy; and Life Technologies.

  8. The Integrated Biorefinery: Conversion of Corn Fiber to Value-added Chemicals

    SciTech Connect

    Susanne Kleff

    2007-03-24

    This presentation provides a summary of Michigan Biotechnology Institute's efforts to employ the corn fiber fraction of a dry grind ethanol plant as a feedstock to produce succinic acid which has potential as a building block intermediate for a wide range of commodity chemicals.

  9. R&D Needs for Integrated Biorefineries: The 30x30 Vision (Presentation)

    SciTech Connect

    Dayton, D. C.

    2007-03-27

    Presentation on progress and possible scenarios towards meeting the 30x30 initiative proposed by President Bush

  10. Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research...

    Energy.gov [DOE] (indexed site)

    Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research algalbiofuelsfactsheet.pdf (96.06 KB) More Documents & Publications Advanced Algal Systems Fact Sheet 2016 National ...

  11. Release of the 2016 National Algal Biofuels Technology Review Charts Path Forward for Algae

    Office of Energy Efficiency and Renewable Energy (EERE)

    The 2016 National Algal Biofuels Technology Review, which was just released today, captures the exciting achievements of the field of algal biofuels, as well as articulates new challenges, lessons learned, and critical next steps.

  12. 2013 DOE Bioenergy Technologies Office (BETO)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE Bioenergy Technologies Office (BETO) Project Peer Review Sapphire Integrated Algal Biorefinery (IABR) Wednesday, May 22, 2013 Integrated Biorefineries Jaime E. Moreno, P.E. Sapphire Energy, Inc. Sapphire produces drop-in crude oil from algae, sunlight, and CO 2 - in a scalable and sustainable process CO 2 Sunlight Plentiful inputs Scalable, open pond facilities Green crude Fossil crude came from algae and other plants living millions of years ago; Sapphire radically accelerates a natural

  13. EERE Success Story—Departments of Energy, Navy, and Agriculture Invest $210 million in Three Commercial Biorefineries to Produce Drop-in Biofuel for the Military

    Energy.gov [DOE]

    In 2014, the U.S. Departments of Energy, Navy, and Agriculture announced that Emerald Biofuels, Fulcrum Energy, and Red Rock Biofuels have been awarded contracts to construct biorefineries capable...

  14. Departments of Energy, Navy, and Agriculture Invest $210 million in Three Commercial Biorefineries to Produce Drop-in Biofuel for the Military

    Energy.gov [DOE]

    In 2014, the U.S. Departments of Energy, Navy, and Agriculture announced that Emerald Biofuels, Fulcrum Energy, and Red Rock Biofuels have been awarded contracts to construct biorefineries capable...

  15. IMPROVED BIOREFINERY FOR THE PRODUCTION OF ETHANOL, CHEMICALS, ANIMAL FEED AND BIOMATERIALS FROM SUGAR CANE

    SciTech Connect

    Dr. Donal F. Day

    2009-01-29

    The Audubon Sugar Institute (ASI) of Louisiana State University’s Agricultural Center (LSU AgCenter) and MBI International (MBI) sought to develop technologies that will lead to the development of a sugar-cane biorefinery, capable of supplying fuel ethanol from bagasse. Technology development focused on the conversion of bagasse, cane-leaf matter (CLM) and molasses into high value-added products that included ethanol, specialty chemicals, biomaterials and animal feed; i.e. a sugar cane-based biorefinery. The key to lignocellulosic biomass utilization is an economically feasible method (pretreatment) for separating the cellulose and the hemicellulose from the physical protection provided by lignin. An effective pretreatment disrupts physical barriers, cellulose crystallinity, and the association of lignin and hemicellulose with cellulose so that hydrolytic enzymes can access the biomass macrostructure (Teymouri et al. 2004, Laureano-Perez, 2005). We chose to focus on alkaline pretreatment methods for, and in particular, the Ammonia Fiber Expansion (AFEX) process owned by MBI. During the first two years of this program a laboratory process was established for the pretreatment of bagasse and CLM using the AFEX process. There was significant improvement of both rate and yield of glucose and xylose upon enzymatic hydrolysis of AFEX-treated bagasse and CLM compared with untreated material. Because of reactor size limitation, several other alkaline pretreatment methods were also co-investigated. They included, dilute ammonia, lime and hydroxy-hypochlorite treatments. Scale-up focused on using a dilute ammonia process as a substitute for AFEX, allowing development at a larger scale. The pretreatment of bagasse by an ammonia process, followed by saccharification and fermentation produced ethanol from bagasse. Simultaneous saccharification and fermentation (SSF) allowed two operations in the same vessel. The addition of sugarcane molasses to the hydrolysate

  16. Preliminary Economics for the Production of Pyrolysis Oil from Lignin in a Cellulosic Ethanol Biorefinery

    SciTech Connect

    Jones, Susanne B.; Zhu, Yunhua

    2009-04-01

    Cellulosic ethanol biorefinery economics can be potentially improved by converting by-product lignin into high valued products. Cellulosic biomass is composed mainly of cellulose, hemicellulose and lignin. In a cellulosic ethanol biorefinery, cellulose and hemicellullose are converted to ethanol via fermentation. The raw lignin portion is the partially dewatered stream that is separated from the product ethanol and contains lignin, unconverted feed and other by-products. It can be burned as fuel for the plant or can be diverted into higher-value products. One such higher-valued product is pyrolysis oil, a fuel that can be further upgraded into motor gasoline fuels. While pyrolysis of pure lignin is not a good source of pyrolysis liquids, raw lignin containing unconverted feed and by-products may have potential as a feedstock. This report considers only the production of the pyrolysis oil and does not estimate the cost of upgrading that oil into synthetic crude oil or finished gasoline and diesel. A techno-economic analysis for the production of pyrolysis oil from raw lignin was conducted. comparing two cellulosic ethanol fermentation based biorefineries. The base case is the NREL 2002 cellulosic ethanol design report case where 2000 MTPD of corn stover is fermented to ethanol (NREL 2002). In the base case, lignin is separated from the ethanol product, dewatered, and burned to produce steam and power. The alternate case considered in this report dries the lignin, and then uses fast pyrolysis to generate a bio-oil product. Steam and power are generated in this alternate case by burning some of the corn stover feed, rather than fermenting it. This reduces the annual ethanol production rate from 69 to 54 million gallons/year. Assuming a pyrolysis oil value similar to Btu-adjusted residual oil, the estimated ethanol selling price ranges from $1.40 to $1.48 (2007 $) depending upon the yield of pyrolysis oil. This is considerably above the target minimum ethanol selling

  17. Understanding Potential Air Emissions from a Cellulosic Biorefinery Producing Renewable Diesel Blendstock.

    SciTech Connect

    Zhang, Yimin; Heath, Garvin A.; Renzaglia, Jason; Thomas, Mae

    2015-06-22

    The Energy Independence and Security Act of 2007, through the Renewable Fuel Standard (RFS), mandates increased use of biofuels, including cellulosic biofuels. The RFS is expected to spur the development of advanced biofuel technologies (e.g., new and innovative biofuel conversion pathways) as well as the construction of biorefineries (refineries that produce biofuels) using these technologies. To develop sustainable cellulosic biofuels, one of the goals of the Bioenergy Technologies Office (BETO) at the Department of Energy is to minimize air pollutants from the entire biofuel supply chain, as stated in their 2014 Multi-Year Program Plan (2014). Although biofuels in general have been found to have lower life cycle greenhouse gas (GHG) emissions compared to petroleum fuels on an energy basis, biomass feedstock production, harvesting, transportation, processing and conversion are expected to emit a wide range of other air pollutants (e.g., criteria air pollutants, hazardous air pollutants), which could affect the environmental benefits of biofuels when displacing petroleum fuels. While it is important for policy makers, air quality planners and regulators, biofuel developers, and investors to understand the potential implications on air quality from a growing biofuel industry, there is a general lack of information and knowledge about the type, fate and magnitude of potential air pollutant emissions from the production of cellulosic biofuels due to the nascent stage of this emerging industry. This analysis assesses potential air pollutant emissions from a hypothetical biorefinery, selected by BETO for further research and development, which uses a biological conversion process of sugars to hydrocarbons to produce infrastructural-compatible renewable diesel blendstock from cellulosic biomass.

  18. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway

    SciTech Connect

    Davis, Ryan; Biddy, Mary J.; Jones, Susanne B.

    2013-03-31

    In support of the Bioenergy Technologies Office, the National Renewable Energy Laboratory (NREL) and the Pacific Northwest National Laboratory (PNNL) are undertaking studies of biomass conversion technologies to identify barriers and target research toward reducing conversion costs. Process designs and preliminary economic estimates for each of these pathway cases were developed using rigorous modeling tools (Aspen Plus and Chemcad). These analyses incorporated the best information available at the time of development, including data from recent pilot and bench-scale demonstrations, collaborative industrial and academic partners, and published literature and patents. This technology pathway case investigates the cultivation of algal biomass followed by further lipid extraction and upgrading to hydrocarbon biofuels. Technical barriers and key research needs have been assessed in order for the algal lipid extraction and upgrading pathway to be competitive with petroleum-derived gasoline, diesel and jet range hydrocarbon blendstocks.

  19. A Taste of Algal Genomes from the Joint Genome Institute

    SciTech Connect

    Kuo, Alan; Grigoriev, Igor

    2012-06-17

    Algae play profound roles in aquatic food chains and the carbon cycle, can impose health and economic costs through toxic blooms, provide models for the study of symbiosis, photosynthesis, and eukaryotic evolution, and are candidate sources for bio-fuels; all of these research areas are part of the mission of DOE's Joint Genome Institute (JGI). To date JGI has sequenced, assembled, annotated, and released to the public the genomes of 18 species and strains of algae, sampling almost all of the major clades of photosynthetic eukaryotes. With more algal genomes currently undergoing analysis, JGI continues its commitment to driving forward basic and applied algal science. Among these ongoing projects are the pan-genome of the dominant coccolithophore Emiliania huxleyi, the interrelationships between the 4 genomes in the nucleomorph-containing Bigelowiella natans and Guillardia theta, and the search for symbiosis genes of lichens.

  20. Recycling of Nutrients and Water in Algal Biofuels Production

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Engineering) Co-PI: Corinne Lehr, Ph.D. (Chemistry) This presentation does not contain any proprietary, confidential, or otherwise restricted information DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Recycling of Nutrients and Water in Algal Biofuels Production Civil and Environmental Engineering California Polytechnic State University San Luis Obispo, California MicroBio Engineering, Inc. San Luis Obispo, California Goal Statement * Improve the sustainability of algae

  1. Recycling of Nutrients and Water in Algal Biofuels Production

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Recycling of Nutrients and Water in Algal Biofuels Production Thursday, May 23, 2013 DOE Bioenergy Production Technologies Office Algae R&D Activities Peer Review PI: Tryg Lundquist Ph D P E (Engineering) PI: Tryg Lundquist, Ph.D., P.E. (Engineering) Co-PI: Corinne Lehr, Ph.D. (Chemistry) C f S California Polytechnic State University San Luis Obispo This presentation does not contain any proprietary, confidential, or otherwise restricted information Goal Statement * Improve the

  2. Scale-up of Algal Biofuel Production Using Waste Nutrients

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    This presentation does not contain any proprietary, confidential, or otherwise restricted information DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Scale-up of Algal Biofuel Production Using Waste Nutrients Civil and Environmental Engineering California Polytechnic State University San Luis Obispo, California MicroBio Engineering, Inc. San Luis Obispo, California Phase 1 Goal Statement * Develop the capability for 2500 gal/ac-yr of biofuel intermediates via HTL from

  3. Evaluation of flow mixing in an ARID-HV algal raceway using statistics of temporal and spatial distribution of fluid particles

    SciTech Connect

    Xu, Ben; Li, Peiwen; Waller, Peter; Huesemann, Michael H.

    2015-02-27

    This paper analyzes and evaluates the flow mixing in an open channel algal raceway for biofuel production. The flow mixing governs the frequency of how algae cells are exposed to sunlight, due to the fluid movement between the surface and the bottom of the algal raceway, thereby affecting algal growth rate. In this work, we investigated the flow mixing performance in a table-sized model of the High Velocity Algae Raceway Integrated Design (ARID-HV). Various geometries of the raceway channels and dams were considered in both the CFD analysis and experimental flowvisualization. In the CFD simulation, the pathlines of fluid particleswere analyzed to obtain the distribution of the number of times that particles passed across a critical water depth, Dc, defined as a cycle count. In addition, the distribution of the time period fraction that the fluid particles stayed in the zones above and below Dc was recorded. Such information was used to evaluate the flow mixing in the raceway. The CFD evaluation of the flow mixing was validated using experimental flow visualization, which showed a good qualitative agreement with the numerical results. In conclusion, this CFD-based evaluation methodology is recommended for flow field optimization for open channel algal raceways, as well as for other engineering applications in which flow mixing is an important concern.

  4. Conversion of residual organics in corn stover-derived biorefinery stream to bioenergy via microbial fuel cell

    SciTech Connect

    Borole, Abhijeet P; Hamilton, Choo Yieng; Schell, Daniel J

    2012-01-01

    A biorefinery process typically uses about 4-10 times as much water as the amount of biofuel generated. The wastewater produced in a biorefinery process contains residual sugars, 5-furfural, phenolics, and other pretreatment and fermentation byproducts. Treatment of the wastewater can reduce the need for fresh water and potentially add to the environmental benefits of the process. Use of microbial fuel cells (MFCs) for conversion of the various organics present in a post-fermentation biorefinery stream is reported here. The organic loading was varied over a wide range to assess removal efficiency, coulombic efficiency and power production. A coulombic efficiency of 40% was observed for a low loading of 1% (0.66 g/L) and decreased to 1.8% for the undiluted process stream (66.4 g/L organic loading). A maximum power density of 1180 mW/m2 was observed at a loading of 8%. Excessive loading was found to result in poor electrogenic performance. The results indicate that operation of an MFC at an intermediate loading using dilution and recirculation of the process stream can enable effective treatment with bioenergy recovery.

  5. CAB-Comm Final Report Documents Accomplishments from Six Years of Algal

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Research | Department of Energy CAB-Comm Final Report Documents Accomplishments from Six Years of Algal Research CAB-Comm Final Report Documents Accomplishments from Six Years of Algal Research May 10, 2016 - 5:40pm Addthis The Consortium for Algal Biofuel Commercialization (CAB-Comm), led by the University of California, San Diego, has just released its final report, detailing the many accomplishments and impactful contributions achieved in its six years of operation. CAB-Comm was

  6. Picture of the Week: Growing a greener future with algal biofuels

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5 Growing a greener future with algal biofuels At the New Mexico Consortium, Los Alamos scientists are using genetic engineering to improve algae strains for increased biomass yield and carbon capture efficiency. September 6, 2015 x x View larger version Growing a greener future with algal biofuels At the New Mexico Consortium, Los Alamos scientists are using genetic engineering to improve algae strains for increased biomass yield and carbon capture efficiency. Algal biomass can be converted to

  7. Energy Department Awards $3.5 Million to Develop Cost-Competitive Algal

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biofuels | Department of Energy 3.5 Million to Develop Cost-Competitive Algal Biofuels Energy Department Awards $3.5 Million to Develop Cost-Competitive Algal Biofuels July 17, 2014 - 11:52am Addthis The Energy Department announced today $3.5 million for an algae project aimed at accelerating the development of sustainable, affordable algal biofuels. This research project supports the Department's goal of producing 2,500 gallons of algal biofuel feedstock per acre per year by 2018, an

  8. Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research

    Energy.gov [DOE] (indexed site)

    Research on algae production for biofuels requires fundamental knowledge of biology as ... range from basic advances in algal biology, such as the genetic sequencing of ...

  9. A Collection of Algal Genomes from the JGI (Conference) | SciTech...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Citation Details In-Document Search Title: A Collection of Algal Genomes from the JGI Algae, defined as photosynthetic eukaryotes other than plants, constitute a major component...

  10. Algal Biology Toolbox Workshop Brings Lead Experts to Inform Algae-Based Biofuel Strategy

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy’s (DOE’s) Bioenergy Technologies Office (BETO) is hosting a two-day workshop gathering lead experts in the field of algal biology from May 24–25, 2016. This workshop, “Sharpening Our Tools: Algal Biology Toolbox Workshop,” held in San Diego, California, will discuss research and development (R&D) needed to achieve affordable, scalable, and sustainable algae-based biofuels. It is the first algal biofuels strategy workshop to focus specifically on improvements in algal biology—a key research focus required to advance the economic viability of algae-based biofuels.

  11. Large-Scale Algal Cultivation, Harvesting and Downstream Processing Workshop

    Office of Energy Efficiency and Renewable Energy (EERE)

    ATP3 (Algae Testbed Public-Private Partnership) is hosting the Large-Scale Algal Cultivation, Harvesting and Downstream Processing Workshop on November 2–6, 2015, at the Arizona Center for Algae Technology and Innovation in Mesa, Arizona. Topics will include practical applications of growing and managing microalgal cultures at production scale (such as methods for handling cultures, screening strains for desirable characteristics, identifying and mitigating contaminants, scaling up cultures for outdoor growth, harvesting and processing technologies, and the analysis of lipids, proteins, and carbohydrates). Related training will include hands-on laboratory and field opportunities.

  12. A study of algal biomass potential in selected Canadian regions.

    SciTech Connect

    Passell, Howard David; Roach, Jesse Dillon; Klise, Geoffrey T.

    2011-11-01

    A dynamic assessment model has been developed for evaluating the potential algal biomass and extracted biocrude productivity and costs, using nutrient and water resources available from waste streams in four regions of Canada (western British Columbia, Alberta oil fields, southern Ontario, and Nova Scotia). The purpose of this model is to help identify optimal locations in Canada for algae cultivation and biofuel production. The model uses spatially referenced data across the four regions for nitrogen and phosphorous loads in municipal wastewaters, and CO{sub 2} in exhaust streams from a variety of large industrial sources. Other data inputs include land cover, and solar insolation. Model users can develop estimates of resource potential by manipulating model assumptions in a graphic user interface, and updated results are viewed in real time. Resource potential by location can be viewed in terms of biomass production potential, potential CO{sub 2} fixed, biocrude production potential, and area required. The cost of producing algal biomass can be estimated using an approximation of the distance to move CO{sub 2} and water to the desired land parcel and an estimation of capital and operating costs for a theoretical open pond facility. Preliminary results suggest that in most cases, the CO{sub 2} resource is plentiful compared to other necessary nutrients (especially nitrogen), and that siting and prospects for successful large-scale algae cultivation efforts in Canada will be driven by availability of those other nutrients and the efficiency with which they can be used and re-used. Cost curves based on optimal possible siting of an open pond system are shown. The cost of energy for maintaining optimal growth temperatures is not considered in this effort, and additional research in this area, which has not been well studied at these latitudes, will be important in refining the costs of algal biomass production. The model will be used by NRC-IMB Canada to identify

  13. Biogas production from anaerobic digestion of Spirulina maxima algal biomass

    SciTech Connect

    Rejean Samson; Anh LeDuy

    1982-08-01

    Spirulina maxima algal biomass could be used as the sole nutrient for the production of biogas by anaerobic digestion process. It is relatively simple to adapt the municipal sewage sludge to this new substrate. The adapted sludge is very stable. Under nonoptimal conditions, the methane yield and productivity obtained were 0.26 m/sup 3//(kg VS added day) and 0.26 m/sup 3//(kg VS added day), respectively, with the semicontinuous, daily fed, anaerobic digestion having loading rate of 0.97 kg VS/(m/sup 3/ day), retention time of 33 days and temperature of 30/sup 0/C.

  14. Process Design and Economics for the Conversion of Algal Biomass to Biofuels: Algal Biomass Fractionation to Lipid- and Carbohydrate-Derived Fuel Products

    SciTech Connect

    Davis, R.; Kinchin, C.; Markham, J.; Tan, E.; Laurens, L.; Sexton, D.; Knorr, D.; Schoen, P.; Lukas, J.

    2014-09-01

    Beginning in 2013, NREL began transitioning from the singular focus on ethanol to a broad slate of products and conversion pathways, ultimately to establish similar benchmarking and targeting efforts. One of these pathways is the conversion of algal biomass to fuels via extraction of lipids (and potentially other components), termed the 'algal lipid upgrading' or ALU pathway. This report describes in detail one potential ALU approach based on a biochemical processing strategy to selectively recover and convert select algal biomass components to fuels, namely carbohydrates to ethanol and lipids to a renewable diesel blendstock (RDB) product. The overarching process design converts algal biomass delivered from upstream cultivation and dewatering (outside the present scope) to ethanol, RDB, and minor coproducts, using dilute-acid pretreatment, fermentation, lipid extraction, and hydrotreating.

  15. Recycling produced water for algal cultivation for biofuels

    SciTech Connect

    Neal, Justin N.; Sullivan, Enid J.; Dean, Cynthia A.; Steichen, Seth A.

    2012-08-09

    Algal growth demands a continuous source of water of appropriate salinity and nutritional content. Fresh water sources are scarce in the deserts of the Southwestern United States, hence, salt water algae species are being investigated as a renewable biofuel source. The use of produced water from oil wells (PW) could offset the demand for fresh water in cultivation. Produced water can contain various concentrations of dissolved solids, metals and organic contaminants and often requires treatment beyond oil/water separation to make it suitable for algae cultivation. The produced water used in this study was taken from an oil well in Jal, New Mexico. An F/2-Si (minus silica) growth media commonly used to cultivate Nannochloropsis salina 1776 (NS 1776) was prepared using the produced water (F/2-Si PW) taking into account the metals and salts already present in the water. NS 1776 was seeded into a bioreactor containing 5L of the (F/2-Si PW) media. After eleven days the optical density at 750 nm (an indicator of algal growth) increased from 0 to 2.52. These results indicate algae are able to grow, though inhibited when compared with non-PW media, in the complex chemical conditions found in produced water. Savings from using nutrients present in the PW, such as P, K, and HCO{sub 3}{sup -}, results in a 44.38% cost savings over fresh water to mix the F/2-Si media.

  16. Strategic supply system design - a holistic evaluation of operational and production cost for a biorefinery supply chain

    DOE PAGES [OSTI]

    Lamers, Patrick; Tan, Eric C.D.; Searcy, Erin M.; Scarlata, Christopher J.; Cafferty, Kara G.; Jacobson, Jacob J.

    2015-08-20

    Pioneer cellulosic biorefineries across the United States rely on a conventional feedstock supply system based on one-year contracts with local growers, who harvest, locally store, and deliver feed-stock in low-density format to the conversion facility. While the conventional system is designed for high biomass yield areas, pilot scale operations have experienced feedstock supply shortages and price volatilities due to reduced harvests and competition from other industries. Regional supply dependency and the inability to actively manage feedstock stability and quality, provide operational risks to the biorefinery, which translate into higher investment risk. The advanced feedstock supply system based on a networkmore » of depots can mitigate many of these risks and enable wider supply system benefits. This paper compares the two concepts from a system-level perspective beyond mere logistic costs. It shows that while processing operations at the depot increase feedstock supply costs initially, they enable wider system benefits including supply risk reduction (leading to lower interest rates on loans), industry scale-up, conversion yield improvements, and reduced handling equipment and storage costs at the biorefinery. When translating these benefits into cost reductions per liter of gasoline equivalent (LGE), we find that total cost reductions between -$0.46 to -$0.21 per LGE for biochemical and -$0.32 to -$0.12 per LGE for thermochemical conversion pathways are possible. Naturally, these system level benefits will differ between individual actors along the feedstock supply chain. Further research is required with respect to depot sizing, location, and ownership structures.« less

  17. Strategic supply system design - a holistic evaluation of operational and production cost for a biorefinery supply chain

    SciTech Connect

    Lamers, Patrick; Tan, Eric C.D.; Searcy, Erin M.; Scarlata, Christopher J.; Cafferty, Kara G.; Jacobson, Jacob J.

    2015-08-20

    Pioneer cellulosic biorefineries across the United States rely on a conventional feedstock supply system based on one-year contracts with local growers, who harvest, locally store, and deliver feed-stock in low-density format to the conversion facility. While the conventional system is designed for high biomass yield areas, pilot scale operations have experienced feedstock supply shortages and price volatilities due to reduced harvests and competition from other industries. Regional supply dependency and the inability to actively manage feedstock stability and quality, provide operational risks to the biorefinery, which translate into higher investment risk. The advanced feedstock supply system based on a network of depots can mitigate many of these risks and enable wider supply system benefits. This paper compares the two concepts from a system-level perspective beyond mere logistic costs. It shows that while processing operations at the depot increase feedstock supply costs initially, they enable wider system benefits including supply risk reduction (leading to lower interest rates on loans), industry scale-up, conversion yield improvements, and reduced handling equipment and storage costs at the biorefinery. When translating these benefits into cost reductions per liter of gasoline equivalent (LGE), we find that total cost reductions between -$0.46 to -$0.21 per LGE for biochemical and -$0.32 to -$0.12 per LGE for thermochemical conversion pathways are possible. Naturally, these system level benefits will differ between individual actors along the feedstock supply chain. Further research is required with respect to depot sizing, location, and ownership structures.

  18. Effect of fed-batch vs. continuous mode of operation on microbial fuel cell performance treating biorefinery wastewater

    DOE PAGES [OSTI]

    Pannell, Tyler C.; Goud, R. Kannaiah; Schell, Daniel J.; Borole, Abhijeet P.

    2016-05-01

    Bioelectrochemical systems have been shown to treat low-value biorefinery streams while recovering energy, however, low current densities and anode conversion efficiencies (ACE) limit their application. A bioanode was developed via enrichment of electroactive biofilm under fed-batch and continuous feeding conditions using corn stover-derived waste stream. The continuously-fed MFC exhibited a current density of 5.8±0.06 A/m2 and an ACE of 39%±4. The fed-batch MFC achieved a similar current density and an ACE of 19.2%, however, its performance dropped after 36 days of operation to 1.1 A/m2 and 0.5%, respectively. In comparison, the ACE of the continuously-fed MFC remained stable achieving anmore » ACE of 30% ± 3 after 48 days of operation. An MFC treating a biorefinery stream post fuel separation achieved a current density of 10.7±0.1 A/m2 and an ACE of 57% ± 9 at an organic loading of 12.5 g COD/L-day. Characterization of the microbial communities indicate higher abundance of Firmicutes and Proteobacteria and lower abundance of Bacteriodetes and a higher level of Geobacter spp. (1.4% vs. 0.2%) in continuously-fed MFC vs. fed-batch MFC. Finally, the results demonstrate that limiting substrate to the equivalent maximum current that the anode can generate, maintains MFC performance over a long term for high strength wastewaters, such as those generated in the biorefinery.« less

  19. Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed preprocessing supply system designs

    SciTech Connect

    Muth, jr., David J.; Langholtz, Matthew H.; Tan, Eric; Jacobson, Jacob; Schwab, Amy; Wu, May; Argo, Andrew; Brandt, Craig C.; Cafferty, Kara; Chiu, Yi-Wen; Dutta, Abhijit; Eaton, Laurence M.; Searcy, Erin

    2014-03-31

    The 2011 US Billion-Ton Update estimates that by 2030 there will be enough agricultural and forest resources to sustainably provide at least one billion dry tons of biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with conventional feedstock supply systems because of their remoteness or low yields. Reliable analyses and projections of US biofuels production depend on assumptions about the supply system and biorefinery capacity, which, in turn, depend upon economic value, feedstock logistics, and sustainability. A cross-functional team has examined combinations of advances in feedstock supply systems and biorefinery capacities with rigorous design information, improved crop yield and agronomic practices, and improved estimates of sustainable biomass availability. A previous report on biochemical refinery capacity noted that under advanced feedstock logistic supply systems that include depots and pre-processing operations there are cost advantages that support larger biorefineries up to 10 000 DMT/day facilities compared to the smaller 2000 DMT/day facilities. This report focuses on analyzing conventional versus advanced depot biomass supply systems for a thermochemical conversion and refinery sizing based on woody biomass. The results of this analysis demonstrate that the economies of scale enabled by advanced logistics offsets much of the added logistics costs from additional depot processing and transportation, resulting in a small overall increase to the minimum ethanol selling price compared to the conventional logistic supply system. While the overall costs do increase slightly for the advanced logistic supply systems, the ability to mitigate moisture and ash in the system will improve the storage and conversion processes. In addition, being able to draw on feedstocks from further distances will decrease the risk of biomass supply to the

  20. Sugar-Based Ethanol Biorefinery: Ethanol, Succinic Acid and By-Product Production

    SciTech Connect

    Donal F. Day

    2009-03-31

    The work conducted in this project is an extension of the developments itemized in DE-FG-36-04GO14236. This program is designed to help the development of a biorefinery based around a raw sugar mill, which in Louisiana is an underutilized asset. Some technical questions were answered regarding the addition of a biomass to ethanol facility to existing sugar mills. The focus of this work is on developing technology to produce ethanol and valuable by-products from bagasse. Three major areas are addressed, feedstock storage, potential by-products and the technology for producing ethanol from dilute ammonia pre-treated bagasse. Sugar mills normally store bagasse in a simple pile. During the off season there is a natural degradation of the bagasse, due to the composting action of microorganisms in the pile. This has serious implications if bagasse must be stored to operate a bagasse/biorefinery for a 300+ day operating cycle. Deterioration of the fermentables in bagasse was found to be 6.5% per month, on pile storage. This indicates that long term storage of adequate amounts of bagasse for year-round operation is probably not feasible. Lignin from pretreatment seemed to offer a potential source of valuable by-products. Although a wide range of phenolic compounds were present in the effluent from dilute ammonia pretreatment, the concentrations of each (except for benzoic acid) were too low to consider for extraction. The cellulosic hydrolysis system was modified to produce commercially recoverable quantities of cellobiose, which has a small but growing market in the food process industries. A spin-off of this led to the production of a specific oligosaccharide which appears to have both medical and commercial implications as a fungal growth inhibitor. An alternate use of sugars produced from biomass hydrolysis would be to produce succinic acid as a chemical feedstock for other conversions. An organism was developed which can do this bioconversion, but the economics of

  1. Separation of algal cells from water by column flotation

    SciTech Connect

    Liu, J.C.; Chen, Y.M.; Ju, Y.H.

    1999-08-01

    The dispersed air flotation (DiAF) process was utilized to separate algal cells (Chlorella sp.) from water. Two types of collector, cationic N-cetyl-N,N,N-trimethylammonium bromide (CTAB) and anionic sodium dodecylsulfate (SDS), were used. It was observed that 20% of cell removal was achieved in the presence of 40 mg/L of SDS, and ca. 86% of the cells were removed at 40 mg/L of CTAB. Upon the addition of 10 mg/L of chitosan, over 90% of the cells were removed when SDS (20 mg/L) was used as the collector. Air flow rate affected cell flotation slightly. Optimum pH values for cell flotation were from 4.0 to 5.0. Flotation efficiency decreased at high ionic strength. The electrostatic interaction between collector and cell surface plays a critical role in the separation processes.

  2. National Bioenergy Center, Biochemical Platform Integration Project: Quarterly Update, Winter 2011-2012 (Newsletter)

    SciTech Connect

    Not Available

    2012-04-01

    Winter 2011-2012 issue of the National Bioenergy Center Biochemical Platform Integration Project quarterly update. Issue topics: 34th Symposium on Biotechnology for Fuels and Chemicals; feasibility of NIR spectroscopy-based rapid feedstock reactive screening; demonstrating integrated pilot-scale biomass conversion. The Biochemical Process Integration Task focuses on integrating the processing steps in enzyme-based lignocellulose conversion technology. This project supports the U.S. Department of Energy's efforts to foster development, demonstration, and deployment of 'biochemical platform' biorefineries that economically produce ethanol or other fuels, as well as commodity sugars and a variety of other chemical products, from renewable lignocellulosic biomass.

  3. Sapphire Energy, Inc. Demonstration-Scale Project | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sapphire Energy, Inc. Demonstration-Scale Project Sapphire Energy, Inc. Demonstration-Scale Project Sapphire Energy, Inc. is scaling up an operational facility to demonstrate conversion of algal carbon dioxide to green crude oil. ibr_arra_sapphire.pdf (263.32 KB) More Documents & Publications Demonstration and Deployment Successes: Sapphire Integrated Algal Biorefinery EA-1788: Finding of No Significant Impact EA-1788: Final Environmental Assessment

  4. Energy Department Announces Up to $25 Million to Reduce Costs of Algal

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biofuels | Department of Energy Up to $25 Million to Reduce Costs of Algal Biofuels Energy Department Announces Up to $25 Million to Reduce Costs of Algal Biofuels September 30, 2014 - 10:15am Addthis In support of President Obama's all-of-the-above energy strategy, the Energy Department today announced up to $25 million in funding to reduce the cost of algal biofuels to less than $5 per gasoline gallon equivalent (gge) by 2019. This funding supports the development of a bioeconomy that can

  5. Departments of the Navy, Energy and Agriculture Invest in Construction of Three Biorefineries to Produce Drop-In Biofuel for Military

    Energy.gov [DOE]

    As part of a 2011 Presidential directive, the Departments of Navy, Energy, and Agriculture announced today that three companies have been awarded contracts to construct and commission biorefineries capable of producing “drop-in” biofuels to meet the transportation needs of the military and private sector.

  6. Determination of Total Carbohydrates in Algal Biomass: Laboratory Analytical Procedure (LAP)

    SciTech Connect

    Van Wychen, S.; Laurens, L. M. L.

    2013-12-01

    This procedure uses two-step sulfuric acid hydrolysis to hydrolyze the polymeric forms of carbohydrates in algal biomass into monomeric subunits. The monomers are then quantified by either HPLC or a suitable spectrophotometric method.

  7. BETO Announces June Webinar: Algal Biofuels Consortium Releases Groundbreaking Research Results

    Energy.gov [DOE]

    BETO will host a live webinar titled “Algal Biofuels Consortium Releases Groundbreaking Research Results” on Wednesday, June 11, 2014, from 2:00 p.m. to 3:00 p.m. Eastern Standard Time.

  8. Algal Biofuels Factsheet: Long-Term Energy Benefits Drive U.S. Research

    SciTech Connect

    2013-03-04

    Algal biofuels are generating considerable interest around the world. In the United States, they represent promising pathways for helping to meet the biofuel production targets set by the Energy Independence and Security Act of 2007.

  9. Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Following cultivation, algal cells are harvested and concentrated. Dewatering consists of settling, dissolved air fotation (DAF) assisted by adding a focculant, and centrifugation. In modeled results of this process, the material achieves a concentration of 10 grams per liter (1% solids) after primary settling, 60 grams per liter (6%) after DAF using an organic polymer focculant (chitosan), and 200 grams per liter (20%) after centrifugation. * The algal material is next sent to a wet extraction

  10. Algae Raceway Testing Facility Brings Algal Biofuels One Step Closer to

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reality | Department of Energy Algae Raceway Testing Facility Brings Algal Biofuels One Step Closer to Reality Algae Raceway Testing Facility Brings Algal Biofuels One Step Closer to Reality February 18, 2016 - 11:25am Addthis (From left to right) BETO Technology Manager Daniel Fishman, and Program Manager Alison Goss Eng, Livermore Mayor John March, Sandia National Laboratories Vice President Marianne Walck, California State Assembly Catharine Baker, and Chief Scientific and Technology

  11. Algal Biofuels Strategy. Proceedings from the March 26-27, 2014, Workshop, Charleston, South Carolina

    SciTech Connect

    None, None

    2014-06-01

    This report is based on the proceedings of the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy’s Bioenergy Technologies Office’s Algal Biofuel Strategy Workshop on March 26-27, 2014, in Charleston, South Carolina. The workshop objective was to convene stakeholders to engage in discussion on strategies over the next 5 to 10 years to achieve affordable, scalable, and sustainable algal biofuels.

  12. Improved Algae-based Biorefining and High-throughput Screening of Algal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Photosynthetic Efficiency - Energy Innovation Portal Biomass and Biofuels Biomass and Biofuels Find More Like This Return to Search Improved Algae-based Biorefining and High-throughput Screening of Algal Photosynthetic Efficiency University of Colorado Contact CU About This Technology Publications: PDF Document Publication CU2807B (Biorefining Flow Cytometer) Marketing Summary.pdf (164 KB) Technology Marketing Summary Improved Algae-based Biorefining and High-throughput Screening of Algal

  13. Significance of cyclic Pennsylvanian-Permian coral/algal buildups Snaky Canyon

    SciTech Connect

    Canter, K.L. ); Isaacson, P.E. )

    1991-02-01

    Five cyclic algal, hydrozoan, and coral buildups occur within a thick sequence of Pennsylvanian-Permian (Virgilian through Wolfcampain) carbonates in south-central Idaho. The Juniper Gulch Member of the Snaky Canyon Formation, as described by Skipp and coworkers, is approximately 600 m thick and contains four depositional facies, including: (1) open circulation outer( ) platform, (2) hydrozoan and phylloid algal mound-dominated carbonate buildup, (3) backmound, restricted platform/lagoon, and (4) restricted inner platform facies. Several microlithofacies, including lime mud-rich bafflestone, diversely fossiliferous packstone and grainstone, bryozoan lime floatstone, and phylloid algal and hydrozoan (Palaeoaplysina) lime bindstone are described within the phylloid algal mounds. Successional faunal assemblage stages are recognized within the buildups. Colonial rugose corals comprise a stabilization stage. When the algal communities of the diversification stage reached wave base, because of their rapid upward growth, cross-bedded oolitic grainstone and occasional cross-bedded dolomite shoals developed. Supratidal to high intertidal platform sedimentation is represented by dolomitic Palaeoaplysina bindstone, algal mat bindstone, and vuggy dolomite. Five vertical sequences of buildup development, each terminate by intertidal, supratidal, or erosional events, are seen in the Juniper Gulch Member in the North Howe stratigraphic section of the southern Lost River Range. The carbonate platform was constructed within a depositional basin that includes an eroded highland to the west, and a mixed siliciclastic-carbonate inner platform with craton uplifts to the east.

  14. Environmental indicators for sustainable production of algal biofuels

    DOE PAGES [OSTI]

    Efroymson, Rebecca A.; Dale, Virginia H.

    2014-10-01

    For analyzing sustainability of algal biofuels, we identify 16 environmental indicators that fall into six categories: soil quality, water quality and quantity, air quality, greenhouse gas emissions, biodiversity, and productivity. Indicators are selected to be practical, widely applicable, predictable in response, anticipatory of future changes, independent of scale, and responsive to management. Major differences between algae and terrestrial plant feedstocks, as well as their supply chains for biofuel, are highlighted, for they influence the choice of appropriate sustainability indicators. Algae strain selection characteristics do not generally affect which indicators are selected. The use of water instead of soil as themore » growth medium for algae determines the higher priority of water- over soil-related indicators. The proposed set of environmental indicators provides an initial checklist for measures of biofuel sustainability but may need to be modified for particular contexts depending on data availability, goals of the stakeholders, and financial constraints. Ultimately, use of these indicators entails defining sustainability goals and targets in relation to stakeholder values in a particular context and can lead to improved management practices.« less

  15. Environmental indicators for sustainable production of algal biofuels

    SciTech Connect

    Efroymson, Rebecca A.; Dale, Virginia H.

    2014-10-01

    For analyzing sustainability of algal biofuels, we identify 16 environmental indicators that fall into six categories: soil quality, water quality and quantity, air quality, greenhouse gas emissions, biodiversity, and productivity. Indicators are selected to be practical, widely applicable, predictable in response, anticipatory of future changes, independent of scale, and responsive to management. Major differences between algae and terrestrial plant feedstocks, as well as their supply chains for biofuel, are highlighted, for they influence the choice of appropriate sustainability indicators. Algae strain selection characteristics do not generally affect which indicators are selected. The use of water instead of soil as the growth medium for algae determines the higher priority of water- over soil-related indicators. The proposed set of environmental indicators provides an initial checklist for measures of biofuel sustainability but may need to be modified for particular contexts depending on data availability, goals of the stakeholders, and financial constraints. Ultimately, use of these indicators entails defining sustainability goals and targets in relation to stakeholder values in a particular context and can lead to improved management practices.

  16. Environmental indicators for sustainable production of algal biofuels

    SciTech Connect

    Efroymson, Rebecca Ann; Dale, Virginia H

    2014-01-01

    For analyzing sustainability of algal biofuels, we identify 16 environmental indicators that fall into six categories: soil quality, water quality and quantity, air quality, greenhouse gas emissions, biodiversity, and productivity. Indicators are selected to be practical, widely applicable, predictable in response, anticipatory of future changes, independent of scale, and responsive to management. Major differences between algae and terrestrial plant feedstocks, as well as their supply chains for biofuel, are highlighted, for they influence the choice of appropriate sustainability indicators. Algae strain selection characteristics do not generally affect which indicators are selected. The use of water instead of soil as the growth medium for algae determines the higher priority of water- over soil-related indicators. The proposed set of environmental indicators provides an initial checklist for measures of biofuel sustainability but may need to be modified for particular contexts depending on data availability, goals of the stakeholders, and financial constraints. Use of these indicators entails defining sustainability goals and targets in relation to stakeholder values in a particular context and can lead to improved management practices.

  17. Strategies for optimizing algal biology for enhanced biomass production

    SciTech Connect

    Barry, Amanda N.; Starkenburg, Shawn R.; Sayre, Richard T.

    2015-02-02

    One of the most environmentally sustainable ways to produce high-energy density (oils) feed stocks for the production of liquid transportation fuels is from biomass. Photosynthetic carbon capture combined with biomass combustion (point source) and subsequent carbon capture and sequestration has also been proposed in the intergovernmental panel on climate change report as one of the most effective and economical strategies to remediate atmospheric greenhouse gases. To maximize photosynthetic carbon capture efficiency and energy-return-on-investment, we must develop biomass production systems that achieve the greatest yields with the lowest inputs. Numerous studies have demonstrated that microalgae have among the greatest potentials for biomass production. This is in part due to the fact that all alga cells are photoautotrophic, they have active carbon concentrating mechanisms to increase photosynthetic productivity, and all the biomass is harvestable unlike plants. All photosynthetic organisms, however, convert only a fraction of the solar energy they capture into chemical energy (reduced carbon or biomass). To increase aerial carbon capture rates and biomass productivity, it will be necessary to identify the most robust algal strains and increase their biomass production efficiency often by genetic manipulation. We review recent large-scale efforts to identify the best biomass producing strains and metabolic engineering strategies to improve aerial productivity. In addition, these strategies include optimization of photosynthetic light-harvesting antenna size to increase energy capture and conversion efficiency and the potential development of advanced molecular breeding techniques. To date, these strategies have resulted in up to twofold increases in biomass productivity.

  18. Strategies for optimizing algal biology for enhanced biomass production

    DOE PAGES [OSTI]

    Barry, Amanda N.; Starkenburg, Shawn R.; Sayre, Richard T.

    2015-02-02

    One of the most environmentally sustainable ways to produce high-energy density (oils) feed stocks for the production of liquid transportation fuels is from biomass. Photosynthetic carbon capture combined with biomass combustion (point source) and subsequent carbon capture and sequestration has also been proposed in the intergovernmental panel on climate change report as one of the most effective and economical strategies to remediate atmospheric greenhouse gases. To maximize photosynthetic carbon capture efficiency and energy-return-on-investment, we must develop biomass production systems that achieve the greatest yields with the lowest inputs. Numerous studies have demonstrated that microalgae have among the greatest potentials formore » biomass production. This is in part due to the fact that all alga cells are photoautotrophic, they have active carbon concentrating mechanisms to increase photosynthetic productivity, and all the biomass is harvestable unlike plants. All photosynthetic organisms, however, convert only a fraction of the solar energy they capture into chemical energy (reduced carbon or biomass). To increase aerial carbon capture rates and biomass productivity, it will be necessary to identify the most robust algal strains and increase their biomass production efficiency often by genetic manipulation. We review recent large-scale efforts to identify the best biomass producing strains and metabolic engineering strategies to improve aerial productivity. In addition, these strategies include optimization of photosynthetic light-harvesting antenna size to increase energy capture and conversion efficiency and the potential development of advanced molecular breeding techniques. To date, these strategies have resulted in up to twofold increases in biomass productivity.« less

  19. Process for selection of Oxygen-tolerant algal mutants that produce H.sub.2

    DOEpatents

    Ghirardi, Maria L.; Seibert, Michael

    1999-01-01

    A process for selection of oxygen-tolerant, H.sub.2 -producing algal mutant cells comprising: (a) growing algal cells photoautotrophically under fluorescent light to mid log phase; (b) inducing algal cells grown photoautrophically under fluorescent light to mid log phase in step (a) anaerobically by (1) resuspending the cells in a buffer solution and making said suspension anaerobic with an inert gas; (2) incubating the suspension in the absence of light at ambient temperature; (c) treating the cells from step (b) with metronidazole, sodium azide, and added oxygen to controlled concentrations in the presence of white light. (d) washing off metronidazole and sodium azide to obtain final cell suspension; (e) plating said final cell suspension on a minimal medium and incubating in light at a temperature sufficient to enable colonies to appear; (f) counting the number of colonies to determine the percent of mutant survivors; and (g) testing survivors to identify oxygen-tolerant H.sub.2 -producing mutants.

  20. Process Design and Economics for the Conversion of Algal Biomass to Biofuels: Algal Biomass Fractionation to Lipid-and Carbohydrate-Derived Fuel Products

    SciTech Connect

    Davis, R.; Kinchin, C.; Markham, J.; Tan, E. C. D.; Laurens, L. M. L.; Sexton, D.; Knorr, D.; Schoen, P.; Lukas, J.

    2014-09-11

    The U.S. Department of Energy (DOE) promotes the production of a range of liquid fuels and fuel blendstocks from biomass feedstocks by funding fundamental and applied research that advances the state of technology in biomass production, conversion, and sustainability. As part of its involvement in this program, the National Renewable Energy Laboratory (NREL) investigates the conceptual production economics of these fuels. This includes fuel pathways from lignocellulosic (terrestrial) biomass, as well as from algal (aquatic) biomass systems.

  1. Determination of Total Solids and Ash in Algal Biomass: Laboratory Analytical Procedure (LAP)

    SciTech Connect

    Van Wychen, S.; Laurens, L. M. L.

    2013-12-01

    This procedure describes the methods used to determine the amount of moisture or total solids present in a freeze-dried algal biomass sample, as well as the ash content. A traditional convection oven drying procedure is covered for total solids content, and a dry oxidation method at 575?C is covered for ash content.

  2. Notice of Intent (NOI) to Issue Funding Opportunity for Advancements in Algal Biomass Yield, Phase 2

    Energy.gov [DOE]

    The U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) announces its intent to issue, on behalf of the Bioenergy Technologies Office, a funding opportunity announcement (FOA) entitled “Advancements in Algal Biomass Yield, Phase 2 (ABY2).”

  3. Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs

    SciTech Connect

    David J. Muth, Jr.; Matthew H. Langholtz; Eric C. D. Tan; Jacob J. Jacobson; Amy Schwab; May M. Wu; Andrew Argo; Craig C. Brandt; Kara G. Cafferty; Yi-Wen Chiu; Abhijit Dutta; Laurence M. Eaton; Erin M. Searcy

    2014-08-01

    The 2011 US Billion-Ton Update estimates that by 2030 there will be enough agricultural and forest resources to sustainably provide at least one billion dry tons of biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with conventional feedstock supply systems because of their remoteness or low yields. Reliable analyses and projections of US biofuels production depend on assumptions about the supply system and biorefinery capacity, which, in turn, depend upon economic value, feedstock logistics, and sustainability. A cross-functional team has examined combinations of advances in feedstock supply systems and biorefinery capacities with rigorous design information, improved crop yield and agronomic practices, and improved estimates of sustainable biomass availability. A previous report on biochemical refinery capacity noted that under advanced feedstock logistic supply systems that include depots and pre-processing operations there are cost advantages that support larger biorefineries up to 10 000 DMT/day facilities compared to the smaller 2000 DMT/day facilities. This report focuses on analyzing conventional versus advanced depot biomass supply systems for a thermochemical conversion and refinery sizing based on woody biomass. The results of this analysis demonstrate that the economies of scale enabled by advanced logistics offsets much of the added logistics costs from additional depot processing and transportation, resulting in a small overall increase to the minimum ethanol selling price compared to the conventional logistic supply system. While the overall costs do increase slightly for the advanced logistic supply systems, the ability to mitigate moisture and ash in the system will improve the storage and conversion processes. In addition, being able to draw on feedstocks from further distances will decrease the risk of biomass supply to the

  4. Conceptual design assessment for the co-firing of bio-refinery supplied lignin project. Quarterly report, June 23--July 1, 2000

    SciTech Connect

    Berglund, T.; Ranney, J.T.; Babb, C.L.

    2000-07-27

    The Conceptual Design Assessment for the Co-Firing of Bio-Refinery Supplied Lignin Project was successfully kicked off on July 23, 2000 during a meeting at the TVA-PPI facility in Muscle Shoals, AL. An initial timeline for the study was distributed, issues of concern were identified and a priority actions list was developed. Next steps include meeting with NETL to discuss de-watering and lignin fuel testing, the development of the mass balance model and ethanol facility design criteria, providing TVA-Colbert with preliminary lignin fuel analysis and the procurement of representative feed materials for the pilot and bench scale testing of the hydrolysis process.

  5. Strategic Biorefinery Analysis: Analysis of Biorefineries

    SciTech Connect

    Lynd, L. R.; Wyman, C.; Laser, M.; Johnson, D.; Landucci, R.

    2005-10-01

    Subcontract report prepared by Dartmouth College that identifies and discusses the advantages of producing ethanol in a biomass refinery as compared to a single-product facility.

  6. An Energy-limited Model of Algal Biofuels Production: Towards the Next Generation of Advanced Biofuels

    DOE PAGES [OSTI]

    Dunlop, Eric

    2013-01-01

    Algal biofuels are increasingly important as a source of renewable energy. The absence of reliable thermodynamic and other property data, and the large amount of kinetic data that would normally be required have created a major barrier to simulation. Additionally, the absence of a generally accepted flowsheet for biofuel production means that detailed simulation of the wrong approach is a real possibility. This model of algal biofuel production estimates the necessary data and places it into a heuristic model using a commercial simulator that back-calculates the process structure required. Furthermore, complex kinetics can be obviated for now by putting themore » simulator into energy limitation and forcing it to solve for the missing design variables, such as bioreactor surface area, productivity, and oil content. The model does not attempt to prescribe a particular approach, but provides a guide towards a sound engineering approach to this challenging and important problem.« less

  7. An energy-limited model of algal biofuel production: Toward the next generation of advanced biofuels

    DOE PAGES [OSTI]

    Dunlop, Eric H.; Coaldrake, A. Kimi; Silva, Cory S.; Seider, Warren D.

    2013-10-22

    Algal biofuels are increasingly important as a source of renewable energy. The absence of reliable thermodynamic and other property data, and the large amount of kinetic data that would normally be required have created a major barrier to simulation. Additionally, the absence of a generally accepted flowsheet for biofuel production means that detailed simulation of the wrong approach is a real possibility. This model of algal biofuel production estimates the necessary data and places it into a heuristic model using a commercial simulator that back-calculates the process structure required. Furthermore, complex kinetics can be obviated for now by putting themore » simulator into energy limitation and forcing it to solve for the missing design variables, such as bioreactor surface area, productivity, and oil content. The model does not attempt to prescribe a particular approach, but provides a guide towards a sound engineering approach to this challenging and important problem.« less

  8. An Energy-limited Model of Algal Biofuels Production: Towards the Next Generation of Advanced Biofuels

    SciTech Connect

    Dunlop, Eric

    2013-01-01

    Algal biofuels are increasingly important as a source of renewable energy. The absence of reliable thermodynamic and other property data, and the large amount of kinetic data that would normally be required have created a major barrier to simulation. Additionally, the absence of a generally accepted flowsheet for biofuel production means that detailed simulation of the wrong approach is a real possibility. This model of algal biofuel production estimates the necessary data and places it into a heuristic model using a commercial simulator that back-calculates the process structure required. Furthermore, complex kinetics can be obviated for now by putting the simulator into energy limitation and forcing it to solve for the missing design variables, such as bioreactor surface area, productivity, and oil content. The model does not attempt to prescribe a particular approach, but provides a guide towards a sound engineering approach to this challenging and important problem.

  9. Energy Department Announces $15 Million for Advancements in Algal Biomass Yield, Phase 2 (ABY2)

    Energy.gov [DOE]

    The Energy Department today announced up to $15 million in funding to develop technologies that are likely to succeed in producing 3,700 gallons of algal biofuel intermediate (or equivalent dry weight basis) per acre per year (gal/acre/yr) on an annualized average basis (not peak or projected) through multiple batch campaigns or on a semi-continuous or continuous basis, in an outdoor test environment by 2020.

  10. First-principles flocculation as the key to low energy algal biofuels processing.

    SciTech Connect

    Hewson, John C.; Wyatt, Nicholas B.; Pierce, Flint; Brady, Patrick Vane; Dwyer, Brian P.; Grillet, Anne; Hankins, Matthew G; Hughes, Lindsey Gloe; Lechman, Jeremy B.; Mondy, Lisa Ann; Murton, Jaclyn K.; O'Hern, Timothy J; Parchert, Kylea Joy; Pohl, Phillip Isabio; Williams, Cecelia Victoria; Zhang, Xuezhi; Hu, Qiang; Amendola, Pasquale; Reynoso, Monica; Sommerfeld, Milton

    2012-09-01

    This document summarizes a three year Laboratory Directed Research and Development (LDRD) program effort to improve our understanding of algal flocculation with a key to overcoming harvesting as a techno-economic barrier to algal biofuels. Flocculation is limited by the concentrations of deprotonated functional groups on the algal cell surface. Favorable charged groups on the surfaces of precipitates that form in solution and the interaction of both with ions in the water can favor flocculation. Measurements of algae cell-surface functional groups are reported and related to the quantity of flocculant required. Deprotonation of surface groups and complexation of surface groups with ions from the growth media are predicted in the context of PHREEQC. The understanding of surface chemistry is linked to boundaries of effective flocculation. We show that the phase-space of effective flocculation can be expanded by more frequent alga-alga or floc-floc collisions. The collision frequency is dependent on the floc structure, described in the fractal sense. The fractal floc structure is shown to depend on the rate of shear mixing. We present both experimental measurements of the floc structure variation and simulations using LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator). Both show a densification of the flocs with increasing shear. The LAMMPS results show a combined change in the fractal dimension and a change in the coordination number leading to stronger flocs.

  11. Process for selection of oxygen-tolerant algal mutants that produce H{sub 2}

    DOEpatents

    Ghirardi, M.L.; Seibert, M.

    1999-02-16

    A process for selection of oxygen-tolerant, H{sub 2}-producing algal mutant cells comprises: (a) growing algal cells photoautotrophically under fluorescent light to mid log phase; (b) inducing algal cells grown photoautotrophically under fluorescent light to mid log phase in step (a) anaerobically by (1) resuspending the cells in a buffer solution and making said suspension anaerobic with an inert gas and (2) incubating the suspension in the absence of light at ambient temperature; (c) treating the cells from step (b) with metronidazole, sodium azide, and added oxygen to controlled concentrations in the presence of white light; (d) washing off metronidazole and sodium azide to obtain final cell suspension; (e) plating said final cell suspension on a minimal medium and incubating in light at a temperature sufficient to enable colonies to appear; (f) counting the number of colonies to determine the percent of mutant survivors; and (g) testing survivors to identify oxygen-tolerant H{sub 2}-producing mutants. 5 figs.

  12. Integration of Feedstock Assembly System and Cellulosic Ethanol Conversion Models to Analyze Bioenergy System Performance

    SciTech Connect

    Jared M. Abodeely; Douglas S. McCorkle; Kenneth M. Bryden; David J. Muth; Daniel Wendt; Kevin Kenney

    2010-09-01

    Research barriers continue to exist in all phases of the emerging cellulosic ethanol biorefining industry. These barriers include the identification and development of a sustainable and abundant biomass feedstock, the assembly of viable assembly systems formatting the feedstock and moving it from the field (e.g., the forest) to the biorefinery, and improving conversion technologies. Each of these phases of cellulosic ethanol production are fundamentally connected, but computational tools used to support and inform analysis within each phase remain largely disparate. This paper discusses the integration of a feedstock assembly system modeling toolkit and an Aspen Plus® conversion process model. Many important biomass feedstock characteristics, such as composition, moisture, particle size and distribution, ash content, etc. are impacted and most effectively managed within the assembly system, but generally come at an economic cost. This integration of the assembly system and the conversion process modeling tools will facilitate a seamless investigation of the assembly system conversion process interface. Through the integrated framework, the user can design the assembly system for a particular biorefinery by specifying location, feedstock, equipment, and unit operation specifications. The assembly system modeling toolkit then provides economic valuation, and detailed biomass feedstock composition and formatting information. This data is seamlessly and dynamically used to run the Aspen Plus® conversion process model. The model can then be used to investigate the design of systems for cellulosic ethanol production from field to final product.

  13. Feedstocks Peer Review Overview Presentation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    John Ferrell Feedstocks Peer Review Overview Presentation May 20, 2013 2 | Bioenergy Technologies Office eere.energy.gov Courtesy Sapphire Energy, LLC Introduction: Terrestrial and Algal Feedstocks Feedstock supply efforts focus on RD&D to develop and optimize cost-effective and sustainable integrated systems for growing, harvesting, collecting, storing, preprocessing, handling, and transporting quality feedstock to biorefineries. Courtesy Sapphire Energy, LLC 3 | Bioenergy Technologies

  14. FOIA Frequently Requested Documents: DE-EE0002884 Sapphire Energy |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Sapphire Energy FOIA Frequently Requested Documents: DE-EE0002884 Sapphire Energy FOIA Frequently Requested Documents: DE-EE0002884 Sapphire Energy, GO-12-043 Redacted Sapphire FOIA. Part 1 (23.33 MB) Part 2 (40.19 MB) More Documents & Publications FOIA Frequently Requested Documents: DE-EE0002884 Recovery Act - Integrated Algal Biorefinery (IABR) Budget Justification, EERE 335 and 335.1 SF-424 A, Budget Information for Non-Construction Programs

  15. Early diagenesis of a phylloid algal-mound complex, Laborcita Formation, southeastern New Mexico

    SciTech Connect

    Ward, W.B.; Meyers, W.J.; Goldstein, R.

    1985-02-01

    Marine carbonate cementation was the initial stage in the paragenesis of phylloid algal mounds in the Laborcita Formation (Wolfcampian), Sacramento Mountains, New Mexico, and the cements are almost identical to those in Holocene coral reefs of Belize. These cements include relics of botryoids and crusts of needle crystals, in part defined by inclusion patterns and luminescent ghosts in mosaic calcite. Individual needle crystals are pseudohexagonal in cross section and range from less than 1 to 30 ..mu..m wide. These nonluminescent early cements line cavity walls, coat phylloid-algal blades and stromatolites, and are interlayered with marine sediment. Early cements also include bladed, fibrous, and rare radiaxial fibrous calcites, which are microdolomite-rich. They have a proximal nonluminescent zone, a central bright-luminescent zone, and a distal blotchy, moderate-luminescent zone. The bright zone may be time equivalent to bright-luminescent micritic coatings on botryoids and grains. Botryoids are encrusted by isopachous bladed cement, some of which has prismatic overgrowths containing an early inclusion-rich zone. This initial cementation was followed closely by: (1) dissolution of algal blades and mollusks, (2) in-situ brecciation, and (3) cementation by blocky calcite. Botryoidal and acicular cements are interpreted as originally marine aragonite precipitates, based on morphology, occurrence, susceptibility to diagenesis, and similarity to Holocene reef cements. The same criteria, plus the microdolomite inclusions, indicate that the bladed, fibrous, and radiaxial cements had a marine Mg-calcite precursor. This assemblage followed by prismatic overgrowths, dissolution, and blocky-calcite cementation indicates an evolution from marine to freshwater diagenesis.

  16. Understanding the impact of flow rate and recycle on the conversion of a complex biorefinery stream using a flow-through microbial electrolysis cell

    DOE PAGES [OSTI]

    Lewis, Alex J.; Borole, Abhijeet P.

    2016-06-16

    We investigated the effect of flow rate and recycle on the conversion of a biomass-derived pyrolysis aqueous phase in amicrobial electrolysis cell (MEC) to demonstrate production of renewable hydrogen in biorefinery. A continuous MEC operation was investigated under one-pass and recycle conditions usingthe complex, biomass-derived, fermentable, mixed substrate feed at a constant concentration of 0.026 g/L,while testing flow rates ranging from 0.19 to 3.6 mL/min. This corresponds to an organic loading rate (OLR) of 0.54₋10 g/L-day. Mass transfer issues observed at low flow rates were alleviated using high flow rates.Increasing the flow rate to 3.6 mL/min (3.7 min HRT) duringmore » one-pass operation increased the hydrogen productivity 3-fold, but anode conversion efficiency (ACE) decreased from 57.9% to 9.9%. Recycle of the anode liquid helped to alleviate kinetic limitations and the ACE increased by 1.8-fold and the hydrogen productivity by 1.2-fold compared to the one-pass condition at the flow rate of 3.6 mL/min (10 g/L-d OLR). High COD removal was also achieved under recycle conditions, reaching 74.2 1.1%, with hydrogen production rate of 2.92 ± 0.51 L/L-day. This study demonstrates the advantages of combining faster flow rates with a recycle process to improve rate of hydrogen production from a switchgrass-derived stream in the biorefinery.« less

  17. Development of an efficient algal H{sub 2}-production system

    SciTech Connect

    Ghirardi, M.L.; Flynn, T.; Forestier, M.; Seibert, M.

    1998-08-01

    Two major problems facing the development of a commercial photobiological algal H{sub 2}-producing system are the low rates of H{sub 2} evolution and the sensitivity of the H{sub 2}-evolving enzyme system to O{sub 2}, a by-product of the photosynthetic water-splitting process. The objective of this project is to generate O{sub 2}-tolerant mutants from the green alga Chlamydomonas reinhardtii that are high producers of H{sub 2} for use in a photobiological water-splitting, H{sub 2}-producing system that is cost effective, renewable, scalable, and non-polluting. The authors are currently employing a dual approach to address the O{sub 2}-sensitivity problem. The first approach, based on classical mutagenesis and selection procedures, depends on the ability of a mutagenized population of algal cells to survive under conditions that require them to either produce (H{sub 2}-production selection) or consume (photoreductive selection) H{sub 2} in the presence of controlled amounts of O{sub 2}. The second approach, based on molecular genetic strategies, involves the cloning of the hydrogenase gene from C. reinhardtii and identification of expression factors required for optimal H{sub 2}-evolution activity. The latter approach will complement the first in the future goal of generating a commercial organism suitable for use in the private sector.

  18. Gasification of Biorefinery Residues

    SciTech Connect

    2006-04-01

    This project is addressing syngas clean-up by developing a better understanding of the chemical mechanisms and kinetics of trace product formation in biomass gasification.

  19. Fulton Cellulosic Ethanol Biorefinery

    SciTech Connect

    Sumait, Necy; Cuzens, John; Klann, Richard

    2015-07-24

    Final report on work performed by BlueFire on the deployment of acid hydrolysis technology to convert cellulosic waste materials into renewable fuels, power and chemicals in a production facility to be located in Fulton, Mississippi.

  20. American Process - Alpena Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - Over 48 patents pending, 7 allowed * Two technologies AVAP and Green Power+ * Built two demonstration cellulosic ethanol plants in GA and Mi USA * Recipient of DOE and Michigan ...

  1. Process Design and Economics for the Conversion of Algal Biomass to Hydrocarbons: Whole Algae Hydrothermal Liquefaction and Upgrading

    SciTech Connect

    Jones, Susanne B.; Zhu, Yunhua; Anderson, Daniel B.; Hallen, Richard T.; Elliott, Douglas C.; Schmidt, Andrew J.; Albrecht, Karl O.; Hart, Todd R.; Butcher, Mark G.; Drennan, Corinne; Snowden-Swan, Lesley J.; Davis, Ryan; Kinchin, Christopher

    2014-03-20

    This report provides a preliminary analysis of the costs associated with converting whole wet algal biomass into primarily diesel fuel. Hydrothermal liquefaction converts the whole algae into an oil that is then hydrotreated and distilled. The secondary aqueous product containing significant organic material is converted to a medium btu gas via catalytic hydrothermal gasification.

  2. Pilot Scale Integrated Biorefinery for Producing Ethanol from Hybrid Algae: Cooperative Research and Development Final Report, CRADA Number CRD-10-389

    SciTech Connect

    Pienkos, P. T.

    2013-11-01

    This collaboration between Algenol Biofuels Inc. and NREL will provide valuable information regarding Direct to Ethanol technology. Specifically, the cooperative R&D will analyze the use of flue gas from industrial sources in the Direct to Ethanol process, which may demonstrate the potential to significantly reduce greenhouse gas emissions while simultaneously producing a valuable product, i.e., ethanol. Additionally, Algenol Biofuels Inc. and NREL will develop both a techno-economic model with full material and energy balances and an updated life-cycle analysis to identify greenhouse gas emissions relative to gasoline, each of which will provide a better understanding of the Direct to Ethanol process and further demonstrate that it is a breakthrough technology with varied and significant benefits.

  3. Algal Functional Annotation Tool from the DOE-UCLA Institute for Genomics and Proteomics

    DOE Data Explorer

    Lopez, David

    The Algal Functional Annotation Tool is a bioinformatics resource to visualize pathway maps, identify enriched biological terms, or convert gene identifiers to elucidate biological function in silico. These types of analysis have been catered to support lists of gene identifiers, such as those coming from transcriptome gene expression analysis. By analyzing the functional annotation of an interesting set of genes, common biological motifs may be elucidated and a first-pass analysis can point further research in the right direction. Currently, the following databases have been parsed, processed, and added to the tool: 1( Kyoto Encyclopedia of Genes and Genomes (KEGG) Pathways Database, 2) MetaCyc Encyclopedia of Metabolic Pathways, 3) Panther Pathways Database, 4) Reactome Pathways Database, 5) Gene Ontology, 6) MapMan Ontology, 7) KOG (Eukaryotic Clusters of Orthologous Groups), 5)Pfam, 6) InterPro.

  4. Inhibition of Alkaline Flocculation by Algal Organic Matter for Chlorella vulgaris

    SciTech Connect

    Vandamme, Dries; Beuckels, Annelies; Vadelius, Eric; Depraetere, Orily; Noppe, Wim; Dutta, Abhishek; Foubert, Imogen; Laurens, Lieve; Muylaert, Koenraad

    2016-01-01

    Alkaline flocculation is a promising strategy for the concentration of microalgae for bulk biomass production. However, previous studies have shown that biological changes during the cultivation negatively affect flocculation efficiency. The influence of changes in cell properties and in the quality and composition of algal organic matter (AOM) were studied using Chlorella vulgaris as a model species. In batch cultivation, flocculation was increasingly inhibited over time and mainly influenced by changes in medium composition, rather than biological changes at the cell surface. Total carbohydrate content of the organic matter fraction sized bigger than 3 kDa increased over time and this fraction was shown to be mainly responsible for the inhibition of alkaline flocculation. The monosaccharide identification of this fraction mainly showed the presence of neutral and anionic monosaccharides. An addition of 30–50 mg L-1 alginic acid, as a model for anionic carbohydrate polymers containing uronic acids, resulted in a complete inhibition of flocculation. Furthermore, these results suggest that inhibition of alkaline flocculation was caused by interaction of anionic polysaccharides leading to an increased flocculant demand over time.

  5. Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Centers Grid Integration HomeTag:Grid Integration Matt ... Research & Capabilities, Solar Sandia Labs Presents Grid ... Engineers convenes the Power Energy Society to address ...

  6. Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Grid Integration HomeGrid Integration epri-presentations-av... and the Electric Power Research Institute (EPRI) ... Events, Renewable Energy, Solar Newsletter|Comments Off on ...

  7. University of Maine Integrated Forest Product Refinery (IFPR) Technology Research

    SciTech Connect

    Pendse, Hemant P.

    2010-11-23

    This project supported research on science and technology that forms a basis for integrated forest product refinery for co-production of chemicals, fuels and materials using existing forest products industry infrastructure. Clear systems view of an Integrated Forest Product Refinery (IFPR) allowed development of a compelling business case for a small scale technology demonstration in Old Town ME for co-production of biofuels using cellulosic sugars along with pulp for the new owners of the facility resulting in an active project on Integrated Bio-Refinery (IBR) at the Old Town Fuel & Fiber. Work on production of advanced materials from woody biomass has led to active projects in bioplastics and carbon nanofibers. A lease for 40,000 sq. ft. high-bay space has been obtained to establish a Technology Research Center for IFPR technology validation on industrially relevant scale. UMaine forest bioproducts research initiative that began in April 2006 has led to establishment of a formal research institute beginning in March 2010.

  8. National Geo-Database for Biofuel Simulations and Regional Analysis of Biorefinery Siting Based on Cellulosic Feedstock Grown on Marginal Lands

    SciTech Connect

    Izaurralde, Roberto C.; Zhang, Xuesong; Sahajpal, Ritvik; Manowitz, David H.

    2012-04-01

    The goal of this project undertaken by GLBRC (Great Lakes Bioenergy Research Center) Area 4 (Sustainability) modelers is to develop a national capability to model feedstock supply, ethanol production, and biogeochemical impacts of cellulosic biofuels. The results of this project contribute to sustainability goals of the GLBRC; i.e. to contribute to developing a sustainable bioenergy economy: one that is profitable to farmers and refiners, acceptable to society, and environmentally sound. A sustainable bioenergy economy will also contribute, in a fundamental way, to meeting national objectives on energy security and climate mitigation. The specific objectives of this study are to: (1) develop a spatially explicit national geodatabase for conducting biofuel simulation studies and (4) locate possible sites for the establishment of cellulosic ethanol biorefineries. To address the first objective, we developed SENGBEM (Spatially Explicit National Geodatabase for Biofuel and Environmental Modeling), a 60-m resolution geodatabase of the conterminous USA containing data on: (1) climate, (2) soils, (3) topography, (4) hydrography, (5) land cover/ land use (LCLU), and (6) ancillary data (e.g., road networks, federal and state lands, national and state parks, etc.). A unique feature of SENGBEM is its 2008-2010 crop rotation data, a crucially important component for simulating productivity and biogeochemical cycles as well as land-use changes associated with biofuel cropping. ARRA support for this project and to the PNNL Joint Global Change Research Institute enabled us to create an advanced computing infrastructure to execute millions of simulations, conduct post-processing calculations, store input and output data, and visualize results. These computing resources included two components installed at the Research Data Center of the University of Maryland. The first resource was 'deltac': an 8-core Linux server, dedicated to county-level and state-level simulations and Postgre

  9. Grid Integration

    SciTech Connect

    Not Available

    2008-09-01

    Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its grid integration subprogram.

  10. Mechanism, Kinetics and Microbiology of Inhibition Caused by Long-Chain Fatty Acids in Anaerobic Digestion of Algal Biomass

    DOE PAGES [OSTI]

    Ma, Jingwei; Zhao, Quan-Bao; Laurens, Lieve L.; Jarvis, Eric E.; Nagle, Nick J.; Chen, Shulin; Frear, Craig S.

    2015-09-15

    Oleaginous microalgae contain a high level of lipids, which can be extracted and converted to biofuel. The lipid-extracted residue can then be further utilized through anaerobic digestion to produce biogas. However, long-chain fatty acids (LCFAs) have been identified as the main inhibitory factor on microbial activity of anaerobic consortium. In this study, the mechanism of LCFA inhibition on anaerobic digestion of whole and lipid-extracted algal biomass was investigated with a range of calcium concentrations against various inoculum to substrate ratios as a means to alleviate the LCFA inhibition.

  11. Development of an efficient algal H{sub 2}-producing system

    SciTech Connect

    Ghirardi, M.L.; Markov, S.; Seibert, M.

    1996-10-01

    Green algae have the potential to efficiently photoevolve H{sub 2} from water using the photosynthetic O{sub 2} evolving apparatus and the reversible hydrogenase enzyme when CO{sub 2} is not present. Unfortunately algal hydrogenases are very sensitive to inactivation by O{sub 2}, the by-product of the water-splitting process. This problem has been one of the major practical factors limiting the commercial utilization of green algae for H{sub 2} production. The other major limitation, saturation of H{sub 2} production by algae at light intensities much lower than normal solar levels, is being addressed by ORNL. The objectives of this project are to generate O{sub 2}-tolerant, H{sub 2}-producing mutants of the green alga Chlamydomonas reinhardtti, to test them in a laboratory-scale system for continuous production of H{sub 2} under aerobic conditions; and to collaborate with ORNL to improve the overall efficiency of H{sub 2} production in intact and cell-free systems. The ultimate goal of the work is to configure a photobiological water-splitting process that will lead to a H{sub 2}-producing system that is cost effective, scalable, non-polluting, and renewable. The approach to obtain O{sub 2}-tolerant mutants of Chlamydomonas involves two types of selection techniques. The first depends on the survival of cells under photoreductive conditions, where H{sub 2} utilization is required, and the second requires the survival of the organisms under H{sub 2}-producing conditions. As part of this collaboration, the authors have independently confirmed that two of the Chlamydomonas mutants lacking photosystem I used by ORNL do in fact produce O{sub 2} in the light and also evolve H{sub 2}. Not unexpectedly, they do the latter with the same O{sub 2}-sensitivity as the WT cells. This observation is crucial for the credibility of the important ORNL work, since it confirms the potential for doubling the quantum efficiency for H{sub 2} production in these mutants.

  12. Getting to low-cost algal biofuels: A monograph on conventional and cutting-edge harvesting and extraction technologies

    SciTech Connect

    Coons, James E.; Kalb, Daniel M.; Dale, Taraka; Marrone, Babetta L.

    2014-08-31

    Among the most formidable challenges to algal biofuels is the ability to harvest algae and extract intracellular lipids at low cost and with a positive energy balance. Here, we construct two paradigms that contrast energy requirements and costs of conventional and cutting-edge Harvesting and Extraction (H&E) technologies. By application of the parity criterion and the moderate condition reference state, an energy–cost paradigm is created that allows 1st stage harvesting technologies to be compared with easy reference to the National Alliance for Advanced Biofuels and Bioproducts (NAABB) target of $0.013/gallon of gasoline equivalent (GGE) and to the U.S. DOE's Bioenergy Technologies Office 2022 cost metrics. Drawing from the moderate condition reference state, a concentration-dependency paradigm is developed for extraction technologies, making easier comparison to the National Algal Biofuels Technology Roadmap (NABTR) target of less than 10% total energy. This monograph identifies cost-bearing factors for a variety of H&E technologies, describes a design basis for ultrasonic harvesters, and provides a framework to measure future technological advancements toward reducing H&E costs. Finally, we show that ultrasonic harvesters and extractors are uniquely capable of meeting both NAABB and NABTR targets. Ultrasonic technologies require further development and scale-up before they can achieve low-cost performance at industrially relevant scales. But, the advancement of this technology would greatly reduce H&E costs and accelerate the commercial viability of algae-based biofuels.

  13. Genome Sequence and Transcriptome Analyses of Chrysochromulina tobin: Metabolic Tools for Enhanced Algal Fitness in the Prominent Order Prymnesiales (Haptophyceae)

    DOE PAGES [OSTI]

    Hovde, Blake T.; Deodato, Chloe R.; Hunsperger, Heather M.; Ryken, Scott A.; Yost, Will; Jha, Ramesh K.; Patterson, Johnathan; Monnat, Raymond J.; Barlow, Steven B.; Starkenburg, Shawn R.; et al

    2015-09-23

    Haptophytes are recognized as seminal players in aquatic ecosystem function. These algae are important in global carbon sequestration, form destructive harmful blooms, and given their rich fatty acid content, serve as a highly nutritive food source to a broad range of eco-cohorts. Haptophyte dominance in both fresh and marine waters is supported by the mixotrophic nature of many taxa. Despite their importance the nuclear genome sequence of only one haptophyte, Emiliania huxleyi (Isochrysidales), is available. Here we report the draft genome sequence of Chrysochromulina tobin (Prymnesiales), and transcriptome data collected at seven time points over a 24-hour light/dark cycle. Themore » nuclear genome of C. tobin is small (59 Mb), compact (∼40% of the genome is protein coding) and encodes approximately 16,777 genes. Genes important to fatty acid synthesis, modification, and catabolism show distinct patterns of expression when monitored over the circadian photoperiod. The C. tobin genome harbors the first hybrid polyketide synthase/non-ribosomal peptide synthase gene complex reported for an algal species, and encodes potential anti-microbial peptides and proteins involved in multidrug and toxic compound extrusion. A new haptophyte xanthorhodopsin was also identified, together with two “red” RuBisCO activases that are shared across many algal lineages. In conclusion, the Chrysochromulina tobin genome sequence provides new information on the evolutionary history, ecology and economic importance of haptophytes.« less

  14. Genome Sequence and Transcriptome Analyses of Chrysochromulina tobin: Metabolic Tools for Enhanced Algal Fitness in the Prominent Order Prymnesiales (Haptophyceae)

    SciTech Connect

    Hovde, Blake T.; Deodato, Chloe R.; Hunsperger, Heather M.; Ryken, Scott A.; Yost, Will; Jha, Ramesh K.; Patterson, Johnathan; Monnat, Raymond J.; Barlow, Steven B.; Starkenburg, Shawn R.; Cattolico, Rose Ann; Richardson, Paul M.

    2015-09-23

    Haptophytes are recognized as seminal players in aquatic ecosystem function. These algae are important in global carbon sequestration, form destructive harmful blooms, and given their rich fatty acid content, serve as a highly nutritive food source to a broad range of eco-cohorts. Haptophyte dominance in both fresh and marine waters is supported by the mixotrophic nature of many taxa. Despite their importance the nuclear genome sequence of only one haptophyte, Emiliania huxleyi (Isochrysidales), is available. Here we report the draft genome sequence of Chrysochromulina tobin (Prymnesiales), and transcriptome data collected at seven time points over a 24-hour light/dark cycle. The nuclear genome of C. tobin is small (59 Mb), compact (∼40% of the genome is protein coding) and encodes approximately 16,777 genes. Genes important to fatty acid synthesis, modification, and catabolism show distinct patterns of expression when monitored over the circadian photoperiod. The C. tobin genome harbors the first hybrid polyketide synthase/non-ribosomal peptide synthase gene complex reported for an algal species, and encodes potential anti-microbial peptides and proteins involved in multidrug and toxic compound extrusion. A new haptophyte xanthorhodopsin was also identified, together with two “red” RuBisCO activases that are shared across many algal lineages. In conclusion, the Chrysochromulina tobin genome sequence provides new information on the evolutionary history, ecology and economic importance of haptophytes.

  15. Procurement Integrity

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - ------------------------------Chapter 3.1 (Dec 2015) 1 Procurement Integrity [Reference: 41 U.S.C. 423, FAR 3.104, DEAR 903.104] Overview This section discusses the requirements of the Procurement Integrity Act and its impact on Federal employees. Background The Department of Energy (DOE), like most federal agencies, purchases many products and services from the private sector. To preserve the integrity of the Federal procurement process and assure fair treatment of bidders, offerors and

  16. Integrated Forest Products Refinery (IFPR)

    SciTech Connect

    van Heiningen, Adriaan R. P.

    2010-05-29

    about 1% (on pulp). By using the wet-end retention aid guar gum during the adsorption process at a charge of 0.5% on pulp the yield gain may be increased to about 5%. Unfortunately, most of this yield increase is lost during subsequent alkaline treatments in the pulp bleach plant. It was found that by performing the adsorption at alkaline conditions the adsorption loss during alkaline treatment in the bleach plant is mostly avoided. Thus a permanent adsorption yield of about 3 and 1.5% (on pulp) was obtained with addition of guar gum at a charge of 0.5 and 0.1% respectively during adsorption of GL hardwood extract on pre-extracted kraft pulp at optimal conditions of pH 11.5, 90 C for 60 minutes at 5% consistency. The beatability of the adsorbed kraft pulps was improved. Also, significant physical strength improvements were achieved. Further study is needed to determine whether the improvements in pulp yield and paper properties make this an economic IFPR concept. Application of the wood solids of a hot water extract of Acer rubrum wood strands as a substitute for polystyrene used for production of SMC maintained the water adsorption properties of the final product. Further work on the physical properties of the hemicellulose containing SMCs need to be completed to determine the potential of wood extracts for the production of partially renewable SMCs. The discovery of the “near-neutral” green liquor extraction process for hardwood was formed the basis for a commercial Integrated Biorefinery that will extract hemicelluloses from wood chips to make biofuels and other specialty chemicals. The pulp production process will be maintained as is proposed in the present researched IFBR concept. This Integrated Biorefinery will be constructed by Red Shield Acquisition LLC (RSA) at the Old Town kraft pulp mill in Maine. RSA in collaboration with the University of Maine will develop and commercialize the hemicellulose extraction process, the conversion of the hemicellulose

  17. Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Sandia, DOE Energy Storage Program, GeneSiC Semiconductor, U.S. Army ARDEC: Ultra-High-Voltage Silicon Carbide Thyristors Capabilities, Distribution Grid Integration, Energy, ...

  18. Procurement Integrity

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    To preserve the integrity of the Federal procurement process and assure fair treatment of bidders, offerors and contractors, laws govern the procurement process and the manner in ...

  19. Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    CO2 Geothermal Natural Gas Safety, Security & ... Hydrogen Production Market Transformation Fuel Cells ... Google + Vimeo Newsletter Signup SlideShare Grid Integration ...

  20. Insolation integrator

    DOEpatents

    Dougherty, John J.; Rudge, George T.

    1980-01-01

    An electric signal representative of the rate of insolation is integrated to determine if it is adequate for operation of a solar energy collection system.

  1. Accumulation and tissue distribution of radioiodine ( sup 131 I) from algal phytoplankton by the freshwater clam Corbicula manilensis

    SciTech Connect

    Cuvin-Aralar, Ma.L.A. ); Umaly, R.C. )

    1991-12-01

    Radioactive wastes discharged from establishments involved in the use of radioisotopes such as nuclear-powered industries, tracer research and nuclear medicine are a potential public health hazard. Such wastes contain radionuclides, particularly Iodine-131 ({sup 131}I), produced in fission with a yield of about 3%. Radionuclides in waste waters are known to be taken up by molluscs such as mussels, oysters, and clams. This study aims to determine the uptake of {sup 131}I from algal phytoplankton (Chroococcus dispersus) fed to the freshwater clam Corbicula manilensis as well as the organ/tissue distribution. The results will be compared with a previous study on {sup 131}I uptake from water by the same clams.

  2. Getting to low-cost algal biofuels: A monograph on conventional and cutting-edge harvesting and extraction technologies

    DOE PAGES [OSTI]

    Coons, James E.; Kalb, Daniel M.; Dale, Taraka; Marrone, Babetta L.

    2014-08-31

    Among the most formidable challenges to algal biofuels is the ability to harvest algae and extract intracellular lipids at low cost and with a positive energy balance. Here, we construct two paradigms that contrast energy requirements and costs of conventional and cutting-edge Harvesting and Extraction (H&E) technologies. By application of the parity criterion and the moderate condition reference state, an energy–cost paradigm is created that allows 1st stage harvesting technologies to be compared with easy reference to the National Alliance for Advanced Biofuels and Bioproducts (NAABB) target of $0.013/gallon of gasoline equivalent (GGE) and to the U.S. DOE's Bioenergy Technologiesmore » Office 2022 cost metrics. Drawing from the moderate condition reference state, a concentration-dependency paradigm is developed for extraction technologies, making easier comparison to the National Algal Biofuels Technology Roadmap (NABTR) target of less than 10% total energy. This monograph identifies cost-bearing factors for a variety of H&E technologies, describes a design basis for ultrasonic harvesters, and provides a framework to measure future technological advancements toward reducing H&E costs. Finally, we show that ultrasonic harvesters and extractors are uniquely capable of meeting both NAABB and NABTR targets. Ultrasonic technologies require further development and scale-up before they can achieve low-cost performance at industrially relevant scales. But, the advancement of this technology would greatly reduce H&E costs and accelerate the commercial viability of algae-based biofuels.« less

  3. USDA- Repowering Assistance Biorefinery Program

    Energy.gov [DOE]

    The reimbursement amounts vary and are determined by the availability of funds, the project scope, and the ability of the proposed project to meet all the scoring criteria. In particular reimburs...

  4. Box Integrals

    SciTech Connect

    Bailey, David H.; Borwein, Jonathan M.; Crandall, Richard E.

    2006-06-01

    By a "box integral" we mean here an expectation $\\langle|\\vec r - \\vec q|^s \\rangle$ where $\\vec r$runs over the unit $n$-cube,with $\\vec q$ and $s$ fixed, explicitly:\\begin eqnarray*&&\\int_01 \\cdots \\int_01 \\left((r_1 - q_1)2 + \\dots+(r_n-q_n)2\\right)^ s/2 \\ dr_1 \\cdots dr_n.\\end eqnarray* The study ofbox integrals leads one naturally into several disparate fields ofanalysis. While previous studies have focused upon symbolic evaluationand asymptotic analysis of special cases (notably $s = 1$), we workherein more generally--in interdisciplinary fashion--developing resultssuch as: (1) analytic continuation (in complex $s$), (2) relevantcombinatorial identities, (3) rapidly converging series, (4) statisticalinferences, (5) connections to mathematical physics, and (6)extreme-precision quadrature techniques appropriate for these integrals.These intuitions and results open up avenues of experimental mathematics,with a view to new conjectures and theorems on integrals of thistype.

  5. The watershed-scale optimized and rearranged landscape design (WORLD) model and local biomass processing depots for sustainable biofuel production: Integrated life cycle assessments

    SciTech Connect

    Eranki, Pragnya L.; Manowitz, David H.; Bals, Bryan D.; Izaurralde, Roberto C.; Kim, Seungdo; Dale, Bruce E.

    2013-07-23

    An array of feedstock is being evaluated as potential raw material for cellulosic biofuel production. Thorough assessments are required in regional landscape settings before these feedstocks can be cultivated and sustainable management practices can be implemented. On the processing side, a potential solution to the logistical challenges of large biorefi neries is provided by a network of distributed processing facilities called local biomass processing depots. A large-scale cellulosic ethanol industry is likely to emerge soon in the United States. We have the opportunity to influence the sustainability of this emerging industry. The watershed-scale optimized and rearranged landscape design (WORLD) model estimates land allocations for different cellulosic feedstocks at biorefinery scale without displacing current animal nutrition requirements. This model also incorporates a network of the aforementioned depots. An integrated life cycle assessment is then conducted over the unified system of optimized feedstock production, processing, and associated transport operations to evaluate net energy yields (NEYs) and environmental impacts.

  6. Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integration at Biorefineries | Department of Energy Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries DOE Biomass Program perspective on anaerobic digestion and fuel cell integratin at biorefineries. Presented by Brian Duff, DOE Biomass Program, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_duff.pdf

  7. RADIATION INTEGRATOR

    DOEpatents

    Glass, F.M.; Wilson, H.N.

    1959-02-17

    Radiation detecting and measuring systems, particularly a compact, integrating, background monitor, are discussed. One of the principal features of the system is the use of an electrometer tube where the input of the tube is directly connected to an electrode of the radiation detector and a capacitor is coupled to the tube input. When a predetermined quantity of radiation has been integrated, a trigger signal is fed to a recorder and a charge is delivered to the capacitor to render the tube inoperative. The capacitor is then recharged for the next period of operation. With this arrangement there is a substantial reduction in lead lengths and the principal components may be enclosed and hermetically sealed to insure low leakage.

  8. Refinery Integration

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Mary Biddy Sue Jones NREL PNNL This presentation does not contain any proprietary, confidential, or otherwise restricted information DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Refinery Integration 4.1.1.31 NREL 4.1.1.51 PNNL Goal Statement GOALS: Model bio-intermediates insertion points to better define costs & ID opportunities, technical risks, information gaps, research needs Publish results Review with stakeholders 2 Leveraging existing refining infrastructure

  9. DOEGO85004_1: Final Non-proprietary Technical Report, Generating Process and Economic Data for Preliminary Design of PureVision Biorefineries DOEGO85004_2: One Original Final Proprietary Technical Report to be mailed to DOE Golden.

    SciTech Connect

    Kadam, Kiran L., Ph.D; Lehrburger, Ed

    2008-01-17

    The overall objective of the project was to define a two-stage reactive fractionation process for converting corn stover into a solid cellulose stream and two liquid streams containing mostly hemicellulosic sugars and lignin, respectively. Toward this goal, biomass fractionation was conducted using a small continuous pilot unit with a nominal capacity of 100 pounds per day of dry biomass to generate performance data using primarily corn stover as feedstock. In the course of the program, the PureVision process was optimized for efficient hemicellulose hydrolysis in the first stage employing autohydrolysis and delignification in the second stage using sodium hydroxide as a catalyst. The remaining cellulose was deemed to be an excellent substrate for producing fermentation sugars, requiring 40% less enzymes for hydrolysis than conventional pretreatment systems using dilute acid. The fractionated cellulose was also determined to have potential higher-value applications as a pulp product. The lignin coproduct was determined to be substantially lower in molecular weight (MW) compared to lignins produced in the kraft or sulfite pulping processes. This low-MW lignin can be used as a feed and concrete binder and as an intermediate for producing a range of high-value products including phenolic resins. This research adds to the understanding of the biomass conversion area in that a new process was developed in the true spirit of biorefineries. The work completed successfully demonstrated the technical effectiveness of the process at the pilot level indicating the technology is ready to advance to a 2–3 ton per day scale. No technical showstoppers are anticipated in scaling up the PureVision fractionation process to commercial scale. Also, economic feasibility of using the PureVision process in a commercial-scale biorefinery was investigated and the minimum ethanol selling price for the PureVision process was calculated to be $0.94/gal ethanol vs. $1.07/gal ethanol for the

  10. Algal Lipids and Omega-3 Production via Autotrophic and Heterotrophic Pathways at Cellana?s Kona Demonstration Facility, Hawaii

    SciTech Connect

    Bai, Xuemei; Knurek, Emily; Goes, Nikki; Griswold, Lynn

    2012-05-05

    Cellana?s Kona Demonstration Facility (KDF) is a 2.5 hectare facility, with 17,000 sq. ft. under roof and 1 hectare of cultivation systems. KDF is designed to execute and support all stages of the production process at pilot scale, from cultivation through extraction. Since Feb. 2009, KDF has been producing up to 0.7MT dry weight of algal biomass per month, while at the same time optimizing processes of cultivation, harvesting, dewatering and extraction. The cultivation system at KDF uses ALDUO? technology, a hybrid system of photobioreactors (PBRs) and open ponds. All fluid transfers related to KDF cultivation and harvesting processes are operated and monitored by a remote Process-Control System. Fluid transfer data, together with biochemical data, enable the mass balance calculations necessary to measure productivity. This poster summarizes methods to improve both biomass and lipids yield by 1) alleviating light limitation in open ponds, 2) de-oxygenation and 3) heterotrophic lipid production for post-harvesting cultures.

  11. ACCELERATION INTEGRATOR

    DOEpatents

    Pope, K.E.

    1958-01-01

    This patent relates to an improved acceleration integrator and more particularly to apparatus of this nature which is gyrostabilized. The device may be used to sense the attainment by an airborne vehicle of a predetermined velocitv or distance along a given vector path. In its broad aspects, the acceleration integrator utilizes a magnetized element rotatable driven by a synchronous motor and having a cylin drical flux gap and a restrained eddy- current drag cap deposed to move into the gap. The angular velocity imparted to the rotatable cap shaft is transmitted in a positive manner to the magnetized element through a servo feedback loop. The resultant angular velocity of tae cap is proportional to the acceleration of the housing in this manner and means may be used to measure the velocity and operate switches at a pre-set magnitude. To make the above-described dcvice sensitive to acceleration in only one direction the magnetized element forms the spinning inertia element of a free gyroscope, and the outer housing functions as a gimbal of a gyroscope.

  12. NREL: Energy Systems Integration - Systems Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    High-level system integration New distribution scenarios such as household DC systems and residential-scale generation and storage integrated with home energy management systems. ...

  13. NREL: Transmission Grid Integration - Wind Integration Datasets

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Integration Datasets The datasets below provide energy professionals with a consistent set of ... Eastern and Western Wind Datasets WIND Toolkit Solar Integration Datasets ...

  14. Energy Systems Integration | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Electricity to Grid Integration Vehicle to Grid Integration Renewable Fuels to Grid Integration Battery & Thermal Energy Storage Microgrids Cybersecurity & Resilience Smart ...

  15. An Integrated Assessment of Location-Dependent Scaling for Microalgae Biofuel Production Facilities

    SciTech Connect

    Coleman, Andre M.; Abodeely, Jared; Skaggs, Richard; Moeglein, William AM; Newby, Deborah T.; Venteris, Erik R.; Wigmosta, Mark S.

    2014-07-01

    Successful development of a large-scale microalgae-based biofuels industry requires comprehensive analysis and understanding of the feedstock supply chain—from facility siting/design through processing/upgrading of the feedstock to a fuel product. The evolution from pilot-scale production facilities to energy-scale operations presents many multi-disciplinary challenges, including a sustainable supply of water and nutrients, operational and infrastructure logistics, and economic competitiveness with petroleum-based fuels. These challenges are addressed in part by applying the Integrated Assessment Framework (IAF)—an integrated multi-scale modeling, analysis, and data management suite—to address key issues in developing and operating an open-pond facility by analyzing how variability and uncertainty in space and time affect algal feedstock production rates, and determining the site-specific “optimum” facility scale to minimize capital and operational expenses. This approach explicitly and systematically assesses the interdependence of biofuel production potential, associated resource requirements, and production system design trade-offs. The IAF was applied to a set of sites previously identified as having the potential to cumulatively produce 5 billion-gallons/year in the southeastern U.S. and results indicate costs can be reduced by selecting the most effective processing technology pathway and scaling downstream processing capabilities to fit site-specific growing conditions, available resources, and algal strains.

  16. Algal Biofuel Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    goals, development must move beyond biodiesel and ethanol to fuels 2010 2010 950 ... 30 35 40 Billions of Gallons Ethanol & Biodiesel Conventional (Starch) Biofuel Biodiesel ...

  17. Mass algal culture system

    DOEpatents

    Raymond, Lawrence P.

    1981-01-01

    An apparatus and process for the culture of algae in a liquid medium is disclosed. The medium circulates through an open trough and is exposed to an atmosphere which is temperature regulated. The nutrient content of the liquid medium is regulated to control the chemical composition growth and reproduction characteristics of the cultured algae. Before it is allowed to strike the medium, sunlight is passed through a filter to remove wavelengths which are not photosynthetically active. Heat energy can be recovered from the filter.

  18. Mass algal culture system

    DOEpatents

    Raymond, Lawrence P.

    1982-01-01

    An apparatus and process for the culture of algae in a liquid medium is disclosed. The medium circulates through an open trough and is exposed to an atmosphere which is temperature regulated. The nutrient content of the liquid medium is regulated to control the chemical composition growth and reproduction characteristics of the cultured algae. Before it is allowed to strike the medium, sunlight is passed through a filter to remove wavelengths which are not photosynthetically active. Heat energy can be recovered from the filter.

  19. Algal Biomass Conversion

    Energy.gov [DOE] (indexed site)

    ... is primarily n-paraffin * Oxygen removal is primarily through decarbonxylation ... The very dilute nature of the sugar and amino acid hydrolysates make fermentation and fuel ...

  20. Advanced Algal Systems

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    an opportunity to sustainably expand biomass resource potential in the United States. ... refers to a great diver- sity of organisms-from microscopic cyanobacteria to giant kelp. ...

  1. A GIS COST MODEL TO ASSESS THE AVAILABILITY OF FRESHWATER, SEAWATER, AND SALINE GROUNDWATER FOR ALGAL BIOFUEL PRODUCTION IN THE UNITED STATES

    SciTech Connect

    Venteris, Erik R.; Skaggs, Richard; Coleman, Andre M.; Wigmosta, Mark S.

    2013-03-15

    A key advantage of using microalgae for biofuel production is the ability of some algal strains to thrive in waters unsuitable for conventional crop irrigation such as saline groundwater or seawater. Nonetheless, the availability of sustainable water supplies will provide significant challenges for scale-up and development of algal biofuels. We conduct a limited techno-economic assessment based on the availability of freshwater, saline groundwater, and seawater for use in open pond algae cultivation systems. We explore water issues through GIS-based models of algae biofuel production, freshwater supply, and cost models for supplying seawater and saline groundwater. We estimate that combined, within the coterminous US these resources can support production on the order of 9.46E+7 m3 yr-1 (25 billion gallons yr-1) of renewable biodiesel. Achievement of larger targets requires the utilization of less water efficient sites and relatively expensive saline waters. Geographically, water availability is most favorable for the coast of the Gulf of Mexico and Florida peninsula, where evaporation relative to precipitation is moderate and various saline waters are economically available. As a whole, barren and scrub lands of the southwestern US have limited freshwater supplies so accurate assessment of alternative waters is critical.

  2. Secretaries Chu and Vilsack Announce More Than $600 Million Investment in

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Advanced Biorefinery Projects | Department of Energy Vilsack Announce More Than $600 Million Investment in Advanced Biorefinery Projects Secretaries Chu and Vilsack Announce More Than $600 Million Investment in Advanced Biorefinery Projects December 4, 2009 - 12:00am Addthis Washington, D.C. - U.S. Department of Energy Secretary Steven Chu and Agriculture Secretary Tom Vilsack today announced the selection of 19 integrated biorefinery projects to receive up to $564 million from the American

  3. NREL: Energy Systems Integration Facility - Systems Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Systems Integration Systems integration considers the relationships among electricity, thermal, and fuel systems and data and information networks to ensure optimal interoperability across the energy spectrum. The Energy Systems Integration Facility's suite of systems integration laboratories provides advanced capabilities for research, development, and demonstration of key components of future energy systems. Photo of a man and a power quality meter system in a laboratory. The Energy Systems

  4. Biomass Program Perspectives on Anaerobic Digestion and Fuel...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at...

  5. Distribution Grid Integration

    Energy.gov [DOE]

    The DOE Systems Integration team funds distribution grid integration research and development (R&D) activities to address the technical issues that surround distribution grid planning,...

  6. Thermal Control & System Integration

    Energy.gov [DOE]

    The thermal control and system integration activity focuses on issues such as the integration of motor and power control technologies and the development of advanced thermal control technologies....

  7. Integrating Environmental Stewardship

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    stewardship Many Laboratory functions are integrated with environmental stewardship. This Strategy cannot be effective without systematic integration with other related Laboratory...

  8. Sandia Energy - Transmission Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Transmission Grid Integration Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Grid Integration Transmission Grid Integration Transmission Grid...

  9. Sandia Energy - Distribution Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Distribution Grid Integration Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Grid Integration Distribution Grid Integration Distribution Grid...

  10. Procurement Integrity Brochure What is Procurement Integrity?

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Procurement Integrity Brochure What is Procurement Integrity? The Department of Energy, like most federal agencies, purchases many products and services from the private sector. To preserve the integrity of the Federal procurement process and assure fair treatment of bidders, offerors, and contractors, laws govern the procurement process and the manner in which federal and contractor personnel conduct business with each other. One of these statutes is Section 27 of the Office of Federal

  11. Energy Systems Integration Newsletter | Energy Systems Integration...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    INTEGRATE Project Partner Demonstrates Clean Energy Interconnection Solution at the ESIF ... first to model the entire Eastern Interconnection at 5-minute intervals for a full ...

  12. NREL: Transmission Grid Integration - Wind Integration National...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Energy Efficiency and Renewable Energy, Wind and Water Power Technologies Office, and ... Principles for Integration Studies Glossary News Did you find what you needed? ...

  13. Integrating Environmental Stewardship

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Consent-Based Siting » Integrated Waste Management Integrated Waste Management The Department envisions an integrated waste management system with storage, transportation, and disposal capabilities in order to safely and effectively manage our nation's spent nuclear fuel and high-level radioactive waste. The Department envisions an integrated waste management system with storage, transportation, and disposal capabilities in order to safely and effectively manage our nation's spent nuclear fuel

  14. Integrated rural energy planning

    SciTech Connect

    El Mahgary, Y.; Biswas, A.K.

    1985-01-01

    This book presents papers on integrated community energy systems in developing countries. Topics considered include an integrated rural energy system in Sri Lanka, rural energy systems in Indonesia, integrated rural food-energy systems and technology diffusion in India, bringing energy to the rural sector in the Philippines, the development of a new energy village in China, the Niaga Wolof experimental rural energy center, designing a model rural energy system for Nigeria, the Basaisa village integrated field project, a rural energy project in Tanzania, rural energy development in Columbia, and guidelines for the planning, development and operation of integrated rural energy projects.

  15. Energy Department Requests Information on Understanding Scale-Up and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Operational Challenges for Integrated Biorefinery Optimization | Department of Energy Requests Information on Understanding Scale-Up and Operational Challenges for Integrated Biorefinery Optimization Energy Department Requests Information on Understanding Scale-Up and Operational Challenges for Integrated Biorefinery Optimization March 10, 2016 - 5:14pm Addthis The U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy's (EERE's) Bioenergy Technologies Office (BETO)

  16. Procurement Integrity | Department of Energy

    Energy Saver

    Procurement Integrity Procurement Integrity PDF icon Procurement Integrity More Documents & Publications POLICY FLASH 2016-04 AcqGuide3pt1.doc&0; Chapter 3 - Improper Business...

  17. USDA - Biorefinery Assistance Program | Department of Energy

    Energy.gov [DOE] (indexed site)

    must be an advanced biofuels Eligible advanced biofuels include: Biofuel derived from cellulose, hemicellulose, or lignin, or other fuels derived from cellulose Biofuel derived...

  18. NewPage Demonstration-Scale Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in Wisconsin (NewPage Corporation in Wisconsin Rapids and Flambeau River Papers, LLC in Park Falls). NewPage and Flambeau River have demonstrated successful collaboration on...

  19. Flambeau River Biofuels Demonstration-Scale Biorefinery

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in Wisconsin (NewPage Corporation in Wisconsin Rapids and Flambeau River Papers, LLC in Park Falls). NewPage and Flambeau River have demonstrated successful collaboration on...

  20. Demonstration of Pyrolysis Biorefinery Concept for Biopower,...

    Energy.gov [DOE] (indexed site)

    Copyright 2015 All rights reserved. 1- Project Overview * ... - Front-end and back-end storagelogistics - Bioasphalt ... Review (based on PFDs) - Battery Limit Interface Table - ...

  1. DuPont Cellulosic Ethanol Biorefinery Opening

    Energy.gov [DOE]

    The DuPont cellulosic ethanol facility, opening in Nevada, Iowa, on October 30, will be the largest cellulosic ethanol plant in the world. The U.S. Department of Energy Bioenergy Technologies Office Director, Jonathan Male, alongside senior government officials, DuPont leaders and staff, and local farmers will attend the grand opening ceremony and plant tour.

  2. Range Fuels Biorefinery Groundbreaking | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and state legislators who exhibit the kind of leadership you've shown in developing America's new energy future. ... Range Fuels are blending science and technology in order to ...

  3. A Second-Generation Dry Mill Biorefinery

    Energy.gov [DOE]

    This fact sheet summarizes a U.S. Department of Energy Biomass Program research and development project.

  4. Biomass IBR Fact Sheet: POET | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    POET Biomass IBR Fact Sheet: POET Design, construct, build, and operate a commercial processing plant as part of an integrated biorefinery to produce lignocellulosic ethanol ...

  5. ZeaChem Pilot Project: High-Yield Hybrid Cellulosic Ethanol Process Using High-Impact Feedstock for Commercialization

    Energy.gov [DOE]

    This pilot-scale integrated biorefinery will produce 250,000 gallons per year of cellulosic ethanol when running at full operational status.

  6. EA-1888: Final Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    operate a demonstration-scale integrated biorefinery at their existing pulp mill in Old Town, Maine, demonstrating the production of n-butanol from lignocellulosic (wood) extract. ...

  7. FY 2008 Laboratory Table

    Energy Saver

    ... Energy Efficiency and Renewable Energy Biomass and Biorefinery Systems R&D 500 500 ... 0 200 100 Advanced Integrated Gasification Combined Cycle 0 0 100 2,125 ...

  8. Biomass IBR Fact Sheet: Abengoa Bioenergy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass IBR Fact Sheet: Abengoa Bioenergy Biomass IBR Fact Sheet: Abengoa Bioenergy Integrated Biorefinery for Conversion of Biomass to Ethanol, Power, and Heat PDF icon ...

  9. Pathway to Fuel Cell Deployment--The 3rd Party Transaction: A...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Biogas Markets and Federal Policy Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Biogas Technologies ...

  10. EIS-0407: EPA Notice of Availability of the Draft Environmental...

    Energy.gov [DOE] (indexed site)

    To Support the Design, Construction, and Startup of a Commercial-Scale Integrated Biorefinery, Federal Funding, Located near the City Hugoton, Stevens County, KS Notice of...

  11. Bioenergy 2015 Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Track C: Integrated Biorefineries and Waste-to-Energy Track Room 204 Track D: Finance, ... not limited to landfills, manure slurries, and municipal and industrial wastewaters. ...

  12. EA-1786: Finding of No Significant Impact | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ethanol from Hybrid Algae Under Recovery Act funding, Algenol will design, construct and operate a pilot-scale integrated biorefinery which would produce ethanol from ...

  13. Demonstration and Deployment Workshop Day 1 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Beta Renewables: Sustainable Chemistry danddworkshopgray.pdf (479.7 KB) More Documents & Publications Abengoa Integrated Biorefineries Demonstration and Deployment Strategy ...

  14. 2011 News | Bioenergy | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1 News Below are news stories related to Bioenergy. RSS Learn about RSS. October 3, 2011 NREL Issues RFI on Integrated Biorefinery Research Facility Services and Capabilities NREL ...

  15. Multicomponent Seismic Analysis and Calibration to Improve Recovery from Algal Mounds: Application to the Roadrunner/Towaoc area of the Paradox Basin, UTE Mountain UTE Reservation, Colorado

    SciTech Connect

    Joe Hachey

    2007-09-30

    The goals of this project were: (1) To enhance recovery of oil contained within algal mounds on the Ute Mountain Ute tribal lands. (2) To promote the use of advanced technology and expand the technical capability of the Native American Oil production corporations by direct assistance in the current project and dissemination of technology to other Tribes. (3) To develop an understanding of multicomponent seismic data as it relates to the variations in permeability and porosity of algal mounds, as well as lateral facies variations, for use in both reservoir development and exploration. (4) To identify any undiscovered algal mounds for field-extension within the area of seismic coverage. (5) To evaluate the potential for applying CO{sub 2} floods, steam floods, water floods or other secondary or tertiary recovery processes to increase production. The technical work scope was carried out by: (1) Acquiring multicomponent seismic data over the project area; (2) Processing and reprocessing the multicomponent data to extract as much geological and engineering data as possible within the budget and time-frame of the project; (3) Preparing maps and data volumes of geological and engineering data based on the multicomponent seismic and well data; (4) Selecting drilling targets if warranted by the seismic interpretation; (5) Constructing a static reservoir model of the project area; and (6) Constructing a dynamic history-matched simulation model from the static model. The original project scope covered a 6 mi{sup 2} (15.6 km{sup 2}) area encompassing two algal mound fields (Towaoc and Roadrunner). 3D3C seismic data was to acquired over this area to delineate mound complexes and image internal reservoir properties such as porosity and fluid saturations. After the project began, the Red Willow Production Company, a project partner and fully-owned company of the Southern Ute Tribe, contributed additional money to upgrade the survey to a nine-component (3D9C) survey. The purpose

  16. Energy Systems Integration

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Systems Integration Ben Kroposki, PhD, PE Director, Energy Systems Integration National Renewable Energy Laboratory 2 Reducing investment risk and optimizing systems in a rapidly changing energy world * Increasing penetration of variable RE in grid * Increasing ultra high energy efficiency buildings and controllable loads * New data, information, communications and controls * Electrification of transportation and alternative fuels * Integrating energy storage (stationary and mobile) and thermal

  17. Residential Buildings Integration (RBI)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    | Energy Efficiency and Renewable Energy eere.energy.gov David Lee Program Manager Residential Buildings Integration (RBI) April 22, 2014 Residential Buildings Integration (RBI) Mission/Vision The Residential Buildings Integration (RBI) program's mission: To accelerate energy performance improvements in residential buildings by developing, demonstrating, and deploying a suite of cost-effective technologies, tools, and solutions to achieve peak performance in new and existing homes. RBI Vision,

  18. Wind Energy Integration: Slides

    WindExchange

    information about integrating wind energy into the electricity grid. Wind Energy Integration Photo by Dennis Schroeder, NREL 25907 Wind energy currently contributes significant power to energy portfolios around the world. *U.S. Department of Energy. (August 2015). 2014 Wind Technologies Market Report. Wind Energy Integration In 2014, Denmark led the way with wind power supplying roughly 39% of the country's electricity demand. Ireland, Portugal, and Spain provided more than 20% of their

  19. Distribution Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Sandia, DOE Energy Storage Program, GeneSiC Semiconductor, U.S. Army ARDEC: Ultra-High-Voltage Silicon Carbide Thyristors Capabilities, Distribution Grid Integration, Energy, ...

  20. Commercial Buildings Integration

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Buildings Integration Images courtesy CREE, True Manufacturing, A.O. Smith, Bernstein Associates, Cambridge Engineering, Alliance Laundry Systems, NREL 2 Strategic Fit within ...

  1. "Integrated Gasification Combined Cycle"

    Energy Information Administration (EIA) (indexed site)

    Plant",,,"X" " - CCS","X" "Integrated Gasification Combined Cycle" " - Advanced ... of Plant",,,"X" "Advanced Nuclear","X" "Biomass" " - Pulverized Coal",,,"X" " - Fuel ...

  2. Sandia Energy - Grid Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Sandia's larger portfolio of renewable energy technology programs (Wind, Solar Power, Geothermal, and Energy Systems Analysis). Transmission Grid Integration The goal of...

  3. Integrating Electricity Subsector

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrating Electricity Subsector Failure Scenarios into a Risk Assessment Methodology ... Department of Energy (DOE), Office of Electricity Delivery and Energy Reliability (OE) ...

  4. integrated-transportation-models

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    support a wider application of integrated transportation models, especially focusing on travel demand and network ... irrevocable worldwide license in said article to ...

  5. CLASIC DATA INTEGRATION

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Oklahoma Lightning Mapping Array, NLDN NOAA Profiler Network Kessler Farm Field Laboratory ASOS, AWOS, AWSS (FAANWSDOD) ARM & Oklahoma Dataset Integration: Examples Oklahoma ...

  6. NREL: Energy Systems Integration - Events

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    archive. Printable Version Energy Systems Integration Home Capabilities Research & Development Facilities Working with Us Publications News Events Energy Systems Integration...

  7. NREL: Transmission Grid Integration - Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Publications Want updates about future transmission grid integration webinars and ... and Transmission Study Flexible Energy Scheduling Tool for Integration of ...

  8. PEV Integration with Renewables (Presentation)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    solar inverter technology for vehicle export power integration 60% 6 Approach - Electric Vehicle Grid Integration Strategy * Objectives: - Infrastructure planning supporting ...

  9. Systems Integration (Fact Sheet)

    SciTech Connect

    Not Available

    2011-10-01

    The Systems Integration (SI) subprogram works closely with industry, universities, and the national laboratories to overcome technical barriers to the large-scale deployment of solar technologies. To support these goals, the subprogram invests primarily in four areas: grid integration, technology validation, solar resource assessment, and balance of system development.

  10. Systems Integration (Fact Sheet)

    SciTech Connect

    DOE Solar Energy Technologies Program

    2011-10-13

    The Systems Integration (SI) subprogram works closely with industry, universities, and the national laboratories to overcome technical barriers to the large-scale deployment of solar technologies. To support these goals, the subprogram invests primarily in four areas: grid integration, technology validation, solar resource assessment, and balance of system development.

  11. Integrating Module - NEMS Documentation

    Reports and Publications

    2014-01-01

    Provides an overview of the complete National Energy Modeling System (NEMS) model, and includes brief descriptions of the modules with which the Integrating Module interacts. The emphasis and focus, however, is on the structure and function of the Integrating Module of NEMS.

  12. 9.1.3.1 Algae-Based Integrated Assessment Framework: Development...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    information Goal Statement Reduce the cost of producing algal oil by investigating ... Assessment Tool (PNNL) and the Algae Logistics Model (INL) to consider productivity, ...

  13. Integrated assessment briefs

    SciTech Connect

    1995-04-01

    Integrated assessment can be used to evaluate and clarify resource management policy options and outcomes for decision makers. The defining characteristics of integrated assessment are (1) focus on providing information and analysis that can be understood and used by decision makers rather than for merely advancing understanding and (2) its multidisciplinary approach, using methods, styles of study, and considerations from a broader variety of technical areas than would typically characterize studies produced from a single disciplinary standpoint. Integrated assessment may combine scientific, social, economic, health, and environmental data and models. Integrated assessment requires bridging the gap between science and policy considerations. Because not everything can be valued using a single metric, such as a dollar value, the integrated assessment process also involves evaluating trade-offs among dissimilar attributes. Scientists at Oak Ridge National Laboratory (ORNL) recognized the importance and value of multidisciplinary approaches to solving environmental problems early on and have pioneered the development of tools and methods for integrated assessment over the past three decades. Major examples of ORNL`s experience in the development of its capabilities for integrated assessment are given.

  14. GMRES and integral operators

    SciTech Connect

    Kelley, C.T.; Xue, Z.Q.

    1994-12-31

    Many discretizations of integral equations and compact fixed point problems are collectively compact and strongly convergent in spaces of continuous functions. These properties not only lead to stable and convergent approximations but also can be used in the construction of fast multilevel algorithms. Recently the GMRES algorithm has become a standard coarse mesh solver. The purpose of this paper is to show how the special properties of integral operators and their approximations are reflected in the performance of the GMRES iteration and how these properties can be used to strengthen the norm in which convergence takes place. The authors illustrate these ideas with composite Gauss rules for integral equations on the unit interval.

  15. Wellbore Integrity Network

    SciTech Connect

    Carey, James W.; Bachu, Stefan

    2012-06-21

    In this presentation, we review the current state of knowledge on wellbore integrity as developed in the IEA Greenhouse Gas Programme's Wellbore Integrity Network. Wells are one of the primary risks to the successful implementation of CO{sub 2} storage programs. Experimental studies show that wellbore materials react with CO{sub 2} (carbonation of cement and corrosion of steel) but the impact on zonal isolation is unclear. Field studies of wells in CO{sub 2}-bearing fields show that CO{sub 2} does migrate external to casing. However, rates and amounts of CO{sub 2} have not been quantified. At the decade time scale, wellbore integrity is driven by construction quality and geomechanical processes. Over longer time-scales (> 100 years), chemical processes (cement degradation and corrosion) become more important, but competing geomechanical processes may preserve wellbore integrity.

  16. Systems Integration Competitive Awards

    Energy.gov [DOE]

    Through the SunShot Systems Integration efforts, DOE is funding a range of research and development (R&D) projects to advance balance of system hardware technologies, such as racking systems...

  17. Integrated Project Team RM

    Energy.gov [DOE]

    The Integrated Project Team (IPT) is an essential element of the Department’s acquisition process and will be utilized during all phases of a project life cycle. The IPT is a team of professionals...

  18. ELECTRONIC INTEGRATING CIRCUIT

    DOEpatents

    Englemann, R.H.

    1963-08-20

    An electronic integrating circuit using a transistor with a capacitor connected between the emitter and collector through which the capacitor discharges at a rate proportional to the input current at the base is described. Means are provided for biasing the base with an operating bias and for applying a voltage pulse to the capacitor for charging to an initial voltage. A current dividing diode is connected between the base and emitter of the transistor, and signal input terminal means are coupled to the juncture of the capacitor and emitter and to the base of the transistor. At the end of the integration period, the residual voltage on said capacitor is less by an amount proportional to the integral of the input signal. Either continuous or intermittent periods of integration are provided. (AEC)

  19. PEV Integration with Renewables (Presentation)

    SciTech Connect

    Markel, T.

    2014-06-18

    This presentation discusses current research at NREL on integrating plug-in electric vehicles with the grid and using renewable energy to charge the grid. The Electric Vehicle Grid Integration (EVGI) and Integrated Network Testbed for Energy Grid Research and Technology Experimentation (INTEGRATE) are addressing the opportunities and technical requirements for vehicle grid integration that will increase marketability and lead to greater petroleum reduction.

  20. Integrated and Engineered Systems

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Integrated and Engineered Systems Integrated and Engineered Systems National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Contact thumbnail of Business Development Executive Miranda Intrator Business Development Executive Richard P. Feynmnan Center for Innovation (505) 665-8315 Email Engineers at Los Alamos create, design, and build the

  1. IDC Integrated Master Plan.

    SciTech Connect

    Clifford, David J.; Harris, James M.

    2014-12-01

    This is the IDC Re-Engineering Phase 2 project Integrated Master Plan (IMP). The IMP presents the major accomplishments planned over time to re-engineer the IDC system. The IMP and the associate Integrated Master Schedule (IMS) are used for planning, scheduling, executing, and tracking the project technical work efforts. REVISIONS Version Date Author/Team Revision Description Authorized by V1.0 12/2014 IDC Re- engineering Project Team Initial delivery M. Harris

  2. Integrating Program Component Executables

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Integrating Program Component Executables on Distributed Memory Architectures via MPH Chris Ding and Yun He Computational Research Division, Lawrence Berkeley National Laboratory University of California, Berkeley, CA 94720, USA chqding@lbl.gov, yhe@lbl.gov Abstract A growing trend in developing large and complex ap- plications on today's Teraflop computers is to integrate stand-alone and/or semi-independent program components into a comprehensive simulation package. One example is the climate

  3. Integrative Genomics Building

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Integrative Genomics Building Community Environmental Documents Tours Community Programs Friends of Berkeley Lab ⇒ Navigate Section Community Environmental Documents Tours Community Programs Friends of Berkeley Lab Project Description The Integrative Genomics Building (IGB) is proposed to be an approximately 77,000 gsf, four-story research and office building constructed in the former Bevatron area - a fully developed site in the geographic interior of the Berkeley Lab. The IGB is intended to

  4. Center for Integrated Nanotechnologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ADEPS » MPA » MPA-CINT Center for Integrated Nanotechnologies Nanomaterials integration is one of many approaches we take in addressing a range of challenges, from human health to national defense. Contact Us CINT Co-Director (acting) Alex Lacerda Email Deputy Group Leader Alex Lacerda Email Group Office (505) 667-9243 First in-situ images of void collapse in explosives Los Alamos researchers and collaborators demonstrated a crucial diagnostic for studying how voids affect explosives under

  5. DIRECTIONS AND TIPS FOR USING INTEGRITY Accessing Integrity:

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DIRECTIONS AND TIPS FOR USING INTEGRITY Accessing Integrity: The website address for Integrity is www.integrity.gov. When you get to the website, click on the yellow box labeled "Login to Integrity." Integrity is connected to the OMB MAX Central Authentication Service. Employees who have previously used OMB MAX should use their MAX user ID and password. Do not use the CIC or PIV login option. This is not enabled for DOE Integrity filers. If you used Integrity last year, you have an OMB

  6. Systems Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The focus of systems integration is to understand the complex interactions among program areas, components, and the tradeoffs between them. Systems Integration ensures all ...

  7. Integrated electrical connector (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Integrated electrical connector Title: Integrated electrical connector An electrical ... The opening is also smaller than the diameter of an electrically conductive contact pin. ...

  8. NREL: Electricity Integration Research - Facilities

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Facilities NREL's electricity integration research is conducted in state-of-the-art ... reliable integration of renewable electricity, fuel production, storage, and building ...

  9. Washington: Integrated Transportation Programs & Coordinated...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Transportation Programs & Coordinated Regional Planning Washington: Integrated Transportation Programs & Coordinated Regional Planning November 6, 2013 - 5:42pm Addthis ...

  10. NREL: Electricity Integration Research - Webmaster

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Electricity Integration Research Home Distributed Grid Integration Transmission Grid ... Office of Energy Efficiency and Renewable Energy, operated by the Alliance for ...

  11. Integrity Automotive | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Product: Joint venture between Kentucky businessman Randal Waldman of Integrity Manufacturing and California-based electric car maker Zap. References: Integrity Automotive1...

  12. Partially integrated exhaust manifold

    DOEpatents

    Hayman, Alan W; Baker, Rodney E

    2015-01-20

    A partially integrated manifold assembly is disclosed which improves performance, reduces cost and provides efficient packaging of engine components. The partially integrated manifold assembly includes a first leg extending from a first port and terminating at a mounting flange for an exhaust gas control valve. Multiple additional legs (depending on the total number of cylinders) are integrally formed with the cylinder head assembly and extend from the ports of the associated cylinder and terminate at an exit port flange. These additional legs are longer than the first leg such that the exit port flange is spaced apart from the mounting flange. This configuration provides increased packaging space adjacent the first leg for any valving that may be required to control the direction and destination of exhaust flow in recirculation to an EGR valve or downstream to a catalytic converter.

  13. Integrated heterodyne terahertz transceiver

    DOEpatents

    Wanke, Michael C.; Lee, Mark; Nordquist, Christopher D.; Cich, Michael J.

    2012-09-25

    A heterodyne terahertz transceiver comprises a quantum cascade laser that is integrated on-chip with a Schottky diode mixer. A terahertz signal can be received by an antenna connected to the mixer, an end facet or sidewall of the laser, or through a separate active section that can amplify the incident signal. The quantum cascade laser couples terahertz local oscillator power to the Schottky diode to mix with the received terahertz signal to provide an intermediate frequency output signal. The fully integrated transceiver optimizes power efficiency, sensitivity, compactness, and reliability. The transceiver can be used in compact, fieldable systems covering a wide variety of deployable applications not possible with existing technology.

  14. Smart Grid Integration Laboratory

    SciTech Connect

    Troxell, Wade

    2011-12-22

    The initial federal funding for the Colorado State University Smart Grid Integration Laboratory is through a Congressionally Directed Project (CDP), DE-OE0000070 Smart Grid Integration Laboratory. The original program requested in three one-year increments for staff acquisition, curriculum development, and instrumentation all which will benefit the Laboratory. This report focuses on the initial phase of staff acquisition which was directed and administered by DOE NETL/ West Virginia under Project Officer Tom George. Using this CDP funding, we have developed the leadership and intellectual capacity for the SGIC. This was accomplished by investing (hiring) a core team of Smart Grid Systems engineering faculty focused on education, research, and innovation of a secure and smart grid infrastructure. The Smart Grid Integration Laboratory will be housed with the separately funded Integrid Laboratory as part of CSU's overall Smart Grid Integration Center (SGIC). The period of performance of this grant was 10/1/2009 to 9/30/2011 which included one no cost extension due to time delays in faculty hiring. The Smart Grid Integration Laboratory's focus is to build foundations to help graduate and undergraduates acquire systems engineering knowledge; conduct innovative research; and team externally with grid smart organizations. Using the results of the separately funded Smart Grid Workforce Education Workshop (May 2009) sponsored by the City of Fort Collins, Northern Colorado Clean Energy Cluster, Colorado State University Continuing Education, Spirae, and Siemens has been used to guide the hiring of faculty, program curriculum and education plan. This project develops faculty leaders with the intellectual capacity to inspire its students to become leaders that substantially contribute to the development and maintenance of Smart Grid infrastructure through topics such as: (1) Distributed energy systems modeling and control; (2) Energy and power conversion; (3) Simulation of

  15. Integrated heterodyne terahertz transceiver

    DOEpatents

    Lee, Mark; Wanke, Michael C.

    2009-06-23

    A heterodyne terahertz transceiver comprises a quantum cascade laser that is integrated on-chip with a Schottky diode mixer. An antenna connected to the Schottky diode receives a terahertz signal. The quantum cascade laser couples terahertz local oscillator power to the Schottky diode to mix with the received terahertz signal to provide an intermediate frequency output signal. The fully integrated transceiver optimizes power efficiency, sensitivity, compactness, and reliability. The transceiver can be used in compact, fieldable systems covering a wide variety of deployable applications not possible with existing technology.

  16. Bayesian Integrated Microbial Forensics

    SciTech Connect

    Jarman, Kristin H.; Kreuzer-Martin, Helen W.; Wunschel, David S.; Valentine, Nancy B.; Cliff, John B.; Petersen, Catherine E.; Colburn, Heather A.; Wahl, Karen L.

    2008-06-01

    In the aftermath of the 2001 anthrax letters, researchers have been exploring ways to predict the production environment of unknown source microorganisms. Different mass spectral techniques are being developed to characterize components of a microbes culture medium including water, carbon and nitrogen sources, metal ions added, and the presence of agar. Individually, each technique has the potential to identify one or two ingredients in a culture medium recipe. However, by integrating data from multiple mass spectral techniques, a more complete characterization is possible. We present a Bayesian statistical approach to integrated microbial forensics and illustrate its application on spores grown in different culture media.

  17. Integration Presentation - VOLTTRON 2016

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integration with MATLAB, FNCS, Energy+ & GridLAB-D POORVA SHARMA August 11, 2016 1 Pacific Northwest National Laboratory VOLTTRON(tm) 2016 PNNL-SA-120037 Goal: Incrementally Increasing Realism ► Proof of Concept August 11, 2016 2 ► Simulation Testing ► Real Deployment From Theory to Deployment: The Tools ► FNCS ■ A framework for integrating simulators across multiple domains ■ Enables multi-scale modeling & simulation ■ Allows for re-use of existing software AND models ►

  18. Renewable Energy Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy Integration Renewable Energy Integration Renewable Energy Integration focuses on incorporating renewable energy, distributed generation, energy storage, thermally ...

  19. Consortium for Algal Biofuels Commercialization

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... p roteotype , I nterna&onal C onference o n A lgal B iomass, Biofuels, a nd B ioproducts. ... P rovided b y A lgal Biofuels, N AS---NRC S tudy, M arch 1 7, 2 011, S an D iego, C A . ...

  20. National Algal Biofuels Roadmap Review

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    9 Cultivation System Reliability Reliability Metrics * Reliability: The ability of an asset (in this case a pond) to perform its intended function without failure for a specified period of time under specified conditions. * Primary Metrics - # of Failures * Pond Failure can be system/human failure or biological contamination or stress causing the pond productivity to drop below acceptable levels * When ponds failed, they were typically re-inoculated from a healthy pond in the same treatment, or

  1. Biomass IBR Fact Sheet: Abengoa Bioenergy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 * December 2012 Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 10% post consumer waste Abengoa Bioenergy Biomass of Kansas Integrated Biorefinery for Conversion of Biomass to Ethanol, Power, and Heat Abengoa Bioenergy's efforts involve the construction of a 1,200-tons-per- day commercial biorefinery, producing cellulosic ethanol and also power and heat to operate the facility. Project Description The Biorefinery Project site would be located adjacent

  2. Biomass Indirect Liquefaction Workshop Presentation | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Biorefinery for the Direct Production of Synthetic Fuel from Waste Carbonaceous Feedstocks schuetzle_reii.pdf (9.57 MB) More Documents & Publications Biomass IBR Fact Sheet: Renewable Energy Institute International 2011 Biomass Program Platform Peer Review: Integrated Biorefineries Bioenergy Technologies Office Overview

  3. Biomass IBR Fact Sheet: Abengoa Bioenergy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Abengoa Bioenergy Biomass IBR Fact Sheet: Abengoa Bioenergy Integrated Biorefinery for Conversion of Biomass to Ethanol, Power, and Heat ibr_commercial_abengoa.pdf (227.38 KB) More Documents & Publications Abengoa Bioenergy Biomass of Kansas, LLC ABENGOA BIOENERGY 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review

  4. NREL: Transmission Grid Integration - Data and Resources

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Integration Datasets The Wind Integration Datasets provide energy professionals with a ... Solar Power Data for Integration Studies The Solar Power Data for Integration ...

  5. Integrated Safety Management

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    2011-04-25

    The order ensures that DOE/NNSA, systematically integrates safety into management and work practices at all levels, so that missions are accomplished efficiently while protecting the workers, the public, and the environment. Supersedes DOE M 450.4-1 and DOE M 411.1-1C

  6. Integrated Safety Management Policy

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    2011-04-25

    The policy establishes DOE's expectation for safety, including integrated safety management that will enable the Department’s mission goals to be accomplished efficiently while ensuring safe operations at all departmental facilities and activities. Supersedes DOE P 450.4, DOE P 411.1, DOE P 441.1, DOE P 450.2A, and DOE P 450.7

  7. Biochemical Platform Processing Integration

    SciTech Connect

    2006-06-01

    The objective of this project is to facilitate deployment of enzyme-based biomass conversion technology. The immediate goal is to explore integration issues that impact process performance and to demonstrate improved performance of the lower-cost enzymes being developed by Genencor and Novozymes.

  8. Bioluminescent bioreporter integrated circuit

    DOEpatents

    Simpson, Michael L.; Sayler, Gary S.; Paulus, Michael J.

    2000-01-01

    Disclosed are monolithic bioelectronic devices comprising a bioreporter and an OASIC. These bioluminescent bioreporter integrated circuit are useful in detecting substances such as pollutants, explosives, and heavy-metals residing in inhospitable areas such as groundwater, industrial process vessels, and battlefields. Also disclosed are methods and apparatus for environmental pollutant detection, oil exploration, drug discovery, industrial process control, and hazardous chemical monitoring.

  9. Integrated Landscape Management

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    March 23, 2015 Ian Bonner Idaho National Laboratory This presentation does not contain any proprietary, confidential, or otherwise restricted information Sustainability Technology Area 4.2.1.20 Integrated Landscape Management 2 | Bioenergy Technologies Office PROJECT GOAL * OBJECTIVE - Develop model based innovative landscape design methods that estimate increased biomass availability, improve soil, water, and air quality, and reduce grower losses through subfield management decisions.

  10. Integrating Electricity Subsector

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrating Electricity Subsector Failure Scenarios into a Risk Assessment Methodology 3002001181 | DEC 2013 Program Leads Jason D. Christopher Technical Lead, Cyber Security Capabilities & Risk Management Department of Energy (DOE), Office of Electricity Delivery and Energy Reliability (OE) Annabelle Lee Senior Technical Executive, Cyber Security Electric Power Research Institute (EPRI) For more information on the DOE's cyber security risk management programs, please contact

  11. Integrated Management Requirements mapping

    SciTech Connect

    Holmes, J.T.; Andrews, N.S.

    1992-06-01

    This document contains five appendices documenting how Sandia implemented the DOE Conduct of Operations (5480.19) and DOE Quality Assurance (5700.6C) orders. It provides a mapping of the Sandia integrated requirements to the specific requirements of each Order and a mapping to Sandia's approved program for implementing the Conduct of Operations Order.

  12. Integrated Management Requirements mapping

    SciTech Connect

    Holmes, J.T.; Andrews, N.S.

    1992-06-01

    This document contains five appendices documenting how Sandia implemented the DOE Conduct of Operations (5480.19) and DOE Quality Assurance (5700.6C) orders. It provides a mapping of the Sandia integrated requirements to the specific requirements of each Order and a mapping to Sandia`s approved program for implementing the Conduct of Operations Order.

  13. CX-001736: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Pilot Scale Biorefinery: Sustainable Transport Fuels from Biomass and Algal ResidueCX(s) Applied: B3.6, A9Date: 03/30/2010Location(s): IllinoisOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  14. Integrated turbomachine oxygen plant

    SciTech Connect

    Anand, Ashok Kumar; DePuy, Richard Anthony; Muthaiah, Veerappan

    2014-06-17

    An integrated turbomachine oxygen plant includes a turbomachine and an air separation unit. One or more compressor pathways flow compressed air from a compressor through one or more of a combustor and a turbine expander to cool the combustor and/or the turbine expander. An air separation unit is operably connected to the one or more compressor pathways and is configured to separate the compressed air into oxygen and oxygen-depleted air. A method of air separation in an integrated turbomachine oxygen plant includes compressing a flow of air in a compressor of a turbomachine. The compressed flow of air is flowed through one or more of a combustor and a turbine expander of the turbomachine to cool the combustor and/or the turbine expander. The compressed flow of air is directed to an air separation unit and is separated into oxygen and oxygen-depleted air.

  15. Integrated Safety Management Policy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    INTEGRATED SAFETY MANAGEMENT SYSTEM DESCRIPTION U.S. DEPARTMENT OF ENERGY Office of Environmental Management Headquarters May 2008 Preparation: Braj K. sin& Occupational Safety and Health Manager Office of Safety Management Concurrence: Chuan-Fu wu Director, Offlce of Safety Management Deputy Assistant Secretary for safe& Management andoperations Operations Officer for 1 Environmental Management Approval: Date p/-g Date Environmental Management TABLE OF CONTENTS

  16. integrated-land-use

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    An Integrated Land Use and Transportation Planning Tool for Sydney, Australia Dr. Matthew Berryman, University of Wollongong Monday, November 28, 2011 - 1pm Argonne TRACC Building 222, Room D-233 The SMART Infrastructure Facility at the University of Wollongong, Australia, has been building an agent-based model to explore the feedbacks between transportation and land use. We focus on livability as a key driver of agent's location choice, and in addition to transport we include factors such as:

  17. Integrative Bioengineering Institute

    SciTech Connect

    Eddington, David; Magin,L,Richard; Hetling, John; Cho, Michael

    2009-01-09

    Microfabrication enables many exciting experimental possibilities for medicine and biology that are not attainable through traditional methods. However, in order for microfabricated devices to have an impact they must not only provide a robust solution to a current unmet need, but also be simple enough to seamlessly integrate into standard protocols. Broad dissemination of bioMEMS has been stymied by the common aim of replacing established and well accepted protocols with equally or more complex devices, methods, or materials. The marriage of a complex, difficult to fabricate bioMEMS device with a highly variable biological system is rarely successful. Instead, the design philosophy of my lab aims to leverage a beneficial microscale phenomena (e.g. fast diffusion at the microscale) within a bioMEMS device and adapt to established methods (e.g. multiwell plate cell culture) and demonstrate a new paradigm for the field (adapt instead of replace). In order for the field of bioMEMS to mature beyond novel proof-of-concept demonstrations, researchers must focus on developing systems leveraging these phenomena and integrating into standard labs, which have largely been ignored. Towards this aim, the Integrative Bioengineering Institute has been established.

  18. High Efficiency Integrated Package

    SciTech Connect

    Ibbetson, James

    2013-09-15

    Solid-state lighting based on LEDs has emerged as a superior alternative to inefficient conventional lighting, particularly incandescent. LED lighting can lead to 80 percent energy savings; can last 50,000 hours – 2-50 times longer than most bulbs; and contains no toxic lead or mercury. However, to enable mass adoption, particularly at the consumer level, the cost of LED luminaires must be reduced by an order of magnitude while achieving superior efficiency, light quality and lifetime. To become viable, energy-efficient replacement solutions must deliver system efficacies of ≥ 100 lumens per watt (LPW) with excellent color rendering (CRI > 85) at a cost that enables payback cycles of two years or less for commercial applications. This development will enable significant site energy savings as it targets commercial and retail lighting applications that are most sensitive to the lifetime operating costs with their extended operating hours per day. If costs are reduced substantially, dramatic energy savings can be realized by replacing incandescent lighting in the residential market as well. In light of these challenges, Cree proposed to develop a multi-chip integrated LED package with an output of > 1000 lumens of warm white light operating at an efficacy of at least 128 LPW with a CRI > 85. This product will serve as the light engine for replacement lamps and luminaires. At the end of the proposed program, this integrated package was to be used in a proof-of-concept lamp prototype to demonstrate the component’s viability in a common form factor. During this project Cree SBTC developed an efficient, compact warm-white LED package with an integrated remote color down-converter. Via a combination of intensive optical, electrical, and thermal optimization, a package design was obtained that met nearly all project goals. This package emitted 1295 lm under instant-on, room-temperature testing conditions, with an efficacy of 128.4 lm/W at a color temperature of ~2873

  19. Integrated Deployment and the Energy Systems Integration Facility: Workshop Proceedings

    SciTech Connect

    Kroposki, B.; Werner, M.; Spikes, A.; Komomua, C.

    2013-01-01

    This report summarizes the workshop entitled: Integrated Deployment and the Energy Systems Integration Facility. In anticipation of the opening of the ESIF, NREL held the workshop August 21-23, 2012 and invited participants from utilities, government, industry, and academia to discuss renewable integration challenges and discover new ways to meet them by taking advantage of the ESIF's capabilities.

  20. NREL: Energy Systems Integration - News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    News Stay up-to-date with the latest energy systems integration news from NREL with the following resources. Energy Systems Integration Newsletter Read a monthly recap of NREL's...