Title: Bioplastic feedstock production from microalgae with fuel co-products: A techno-economic and life cycle impact assessment

Journal Article · · Algal Research
 [1];  [2];  [2];  [3]
  1. Colorado State Univ., Fort Collins, CO (United States); University of Kentucky
  2. Univ. of Kentucky, Lexington, KY (United States)
  3. Colorado State Univ., Fort Collins, CO (United States)

The current and future consumption of petroleum based plastics, 20% of global annual oil by 2050, is leading to the investigation and development of alternative feedstocks. Algae-based plastics offer a promising alleviate that would decrease oil consumption, improve environmental impact, and in some cases even improve plastic performance. This study investigates the economic viability and environmental impact of an algae biorefinery that integrates the complementary functions of bioplastic feedstock (BPFS) and fuel production. Here, the BPFS and biofuel biorefinery modeled includes nine different production scenarios. Performance of the facility was validated based on experimental systems with modeling work focusing on mass and energy balances of all required sub-processes in the production pathway. Results show the minimum selling price of the BPFS is within the realm of economic competition with prices as low as $970 USD tonne-1. Additionally, life cycle impact assessment results indicate drastic improvements in performance of the produced BPFS, with reductions in greenhouse gas emissions ranging between 67-116% compared to a petroleum based plastic feedstock. These results indicate that an algae biorefinery focused on BPFS production and fuels has the potential to operate both economically and sustainably. Sensitivity analysis results, alternative co-products (given that fuels represent minimal value) and product market potential are discussed.

Research Organization:
Univ. of Kentucky, Lexington, KY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0029623
OSTI ID:
1845133
Journal Information:
Algal Research, Journal Name: Algal Research Vol. 46; ISSN 2211-9264
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

Techno-economics of microalgae production and conversion to refinery-ready oil with co-product credits journal October 2015
Accurate and reliable quantification of total microalgal fuel potential as fatty acid methyl esters by in situ transesterification journal February 2012
Effects of nitrogen sources on cell growth and lipid accumulation of green alga Neochloris oleoabundans journal September 2008
Second Generation Biofuels: High-Efficiency Microalgae for Biodiesel Production journal March 2008
CO2 recycling using microalgae for the production of fuels journal March 2014
Capture and recycle of industrial CO2 emissions using microalgae journal June 2016
Economic comparison of open pond raceways to photo bio-reactors for profitable production of algae for transportation fuels in the Southwest journal May 2012
Microalgae to biofuels lifecycle assessment — Multiple pathway evaluation journal April 2014
Algal biofuel production for fuels and feed in a 100-ha facility: A comprehensive techno-economic analysis and life cycle assessment journal July 2015
Combined algal processing: A novel integrated biorefinery process to produce algal biofuels and bioproducts journal November 2016
Energy use and greenhouse gas emissions from an algae fractionation process for producing renewable diesel journal September 2016
Techno-economic assessment of open microalgae production systems journal April 2017
Techno-economic analysis of autotrophic microalgae for fuel production journal October 2011
Lifecycle assessment of microalgae to biofuel: Comparison of thermochemical processing pathways journal September 2015
Economic viability of multiple algal biorefining pathways and the impact of public policies journal January 2019
Influence of nutrient deprivations on lipid accumulation in a dominant indigenous microalga Chlorella sp., BUM11008: Evaluation for biodiesel production journal February 2012
Effect of nutrients on growth and lipid accumulation in the green algae Dunaliella tertiolecta journal January 2011
Nannochloropsis production metrics in a scalable outdoor photobioreactor for commercial applications journal August 2012
An updated comprehensive techno-economic analysis of algae biodiesel journal October 2013
The potentials and challenges of algae based biofuels: A review of the techno-economic, life cycle, and resource assessment modeling journal May 2015
Techno-economic and Monte Carlo probabilistic analysis of microalgae biofuel production system journal November 2016
Techno-economic and life-cycle assessment of an attached growth algal biorefinery journal November 2016
Life cycle assessment and nutrient analysis of various processing pathways in algal biofuel production journal April 2017
Comparative cost analysis of algal oil production for biofuels journal August 2011
Microplastic pollution is widely detected in US municipal wastewater treatment plant effluent journal November 2016
Extraction, characterization, purification and catalytic upgrading of algae lipids to fuel-like hydrocarbons journal September 2016
Sustainability of carbon delivery to an algal biorefinery: A techno-economic and life-cycle assessment journal March 2019
Microalgae for biodiesel production and other applications: A review journal January 2010
Biofuels from Microalgae journal March 2008
Life-Cycle Assessment of Potential Algal Biodiesel Production in the United Kingdom: A Comparison of Raceways and Air-Lift Tubular Bioreactors journal July 2010
Quantitative Uncertainty Analysis of Life Cycle Assessment for Algal Biofuel Production journal December 2012
Environmental and Sustainability Factors Associated With Next-Generation Biofuels in the U.S.: What Do We Really Know? journal July 2009
Production, use, and fate of all plastics ever made journal July 2017

Cited By (1)

Emerging Technologies in Algal Biotechnology: Toward the Establishment of a Sustainable, Algae-Based Bioeconomy journal March 2020