Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Impact of storage and blending of algae and forest product residue on fuel blendstock production

Journal Article · · Algal Research

Seasonal impacts on the production of algae biomass require blending with other feedstocks such as wood to maintain consistent annual conversion capacity. Idaho National Laboratory (INL) has developed a long-term storage strategy for algae biomass using ensiling, or anaerobic wet storage, that was tested for blends of algae and wood to stabilize the feedstock supply for processing to fuels. Additionally, blending biomass (algae and wood) leverages existing biomass storage approaches commonly used by the feed and forage industry. Earlier research also has demonstrated positive results that indicate ensiling is more effective and economical in normalizing biomass feedstock supply prior to conversions such as HTL (hydrothermal liquefaction) than preserving biomass by drying. By assessing impacts beginning with upstream logistic operations and proceeding through each conversion step, this work focuses on conversion of ensiled and blended biomass to fungible liquid transportation fuel blendstocks. This is accomplished by conversion of the blended biomass (62% Chlorella sp. blended with 38% loblolly pine forest product residues [FPR]) to bio-crude through HTL and subsequent upgrading through HT (hydrotreating) with a commercial refinery catalyst analogous to a refinery process to produce hydrocarbon fuel. In this work, results indicate that carbon retention and quality are preserved in both the bio-crude and upgraded fuel from the ensiled blend, indicating the potential of this approach for managing seasonal variations in algae biomass productivity.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-76RL01830; AC07-05ID14517
OSTI ID:
1843787
Report Number(s):
PNNL-SA-169550
Journal Information:
Algal Research, Journal Name: Algal Research Vol. 62; ISSN 2211-9264
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (28)

Hydroprocessing of Bio-Oils and Oxygenates to Hydrocarbons. Understanding the Reaction Routes journal January 2009
Influence of Airflow on Laboratory Storage of High Moisture Corn Stover journal April 2014
A review of losses arising during conservation of grass forage: Part 1, field losses journal September 1989
Process development for hydrothermal liquefaction of algae feedstocks in a continuous-flow reactor journal October 2013
Regional algal biofuel production potential in the coterminous United States as affected by resource availability trade-offs journal July 2014
Evaluation of a high-moisture stabilization strategy for harvested microalgae blended with herbaceous biomass: Part II — Techno-economic assessment journal July 2017
Evaluation of a high-moisture stabilization strategy for harvested microalgae blended with herbaceous biomass: Part I—Storage performance journal July 2017
Mitigation of variable seasonal productivity in algae biomass through blending and ensiling: An assessment of compositional changes in storage journal September 2019
Economic impacts of feeding microalgae/wood blends to hydrothermal liquefaction and upgrading systems journal October 2020
Hydrothermal liquefaction of biomass: Developments from batch to continuous process journal February 2015
Hydrothermal liquefaction of barks into bio-crude – Effects of species and ash content/composition journal January 2014
Impact of iron porphyrin complexes when hydroprocessing algal HTL biocrude journal October 2016
FT-ICR MS analysis of blended pine-microalgae feedstock HTL biocrudes journal March 2018
Impact of feedstock quality and variation on biochemical and thermochemical conversion journal November 2016
Field-to-Fuel Performance Testing of Lignocellulosic Feedstocks: An Integrated Study of the Fast Pyrolysis–Hydrotreating Pathway journal April 2015
Red Mud Catalytic Pyrolysis of Pinyon Juniper and Single-Stage Hydrotreatment of Oils journal July 2016
Nitrogen Removal from Oil: A Review journal December 2016
Anaerobic Storage and Conversion of Microalgal Biomass to Manage Seasonal Variation in Cultivation journal July 2020
Acid and Alkali Catalyzed Hydrothermal Liquefaction of Dairy Manure Digestate and Food Waste journal December 2017
Overview of Applications of Biomass Fast Pyrolysis Oil journal March 2004
Historical Developments in Hydroprocessing Bio-oils journal May 2007
Integrated Evaluation of Cost, Emissions, and Resource Potential for Algal Biofuels at the National Scale journal May 2014
Reaction engineering and kinetics of algae conversion to biofuels and chemicals via pyrolysis and hydrothermal liquefaction journal January 2020
An alternative biorefinery approach to address microalgal seasonality: blending with spent coffee grounds journal January 2020
Distribution of radiocesium and stable elements within a pine tree journal May 2011
Assessing the stability and techno-economic implications for wet storage of harvested microalgae to manage seasonal variability journal April 2019
Estimating the Calorific Values of Lignocellulosic Fuels journal April 2004
Hydrothermal processing of algal biomass for the production of biofuels and chemicals journal September 2012

Similar Records

Economic Impacts of Feeding Microalgae/Wood Blends to Hydrothermal Liquefaction and Upgrading Systems
Journal Article · Thu Oct 01 00:00:00 EDT 2020 · Algal Research · OSTI ID:1668764

Preservation of Microalgae, Lignocellulosic Biomass Blends by Ensiling to Enable Consistent Year-Round Feedstock Supply for Thermochemical Conversion to Biofuels
Journal Article · Wed Apr 15 00:00:00 EDT 2020 · Frontiers in Bioengineering and Biotechnology · OSTI ID:1628990