BETO 2021 Peer Review - CAP Process Research

Jacob Kruger

Research output: NRELPresentation


Combined Algal Processing (CAP) is an algae biorefining approach that employs pretreatment and extraction operations to fractionate algal biomass into an organic liquid phase containing lipids, an aqueous hydrolysate phase containing carbohydrates and protein, and a residual solid phase containing insoluble matter. Each of these fractions is upgraded to fuels and/or co-products, including non-isocyanate polyurethanes from unsaturated lipids, fuels from saturated lipids, fuel precursor carboxylic acids from the hydrolysate, and conductive carbons from the solid residue. Techno-economic analysis of multiple CAP configurations suggests that some configurations have a viable pathway to algal biofuels at $2.50/gallon of gasoline equivalent.
Original languageAmerican English
Number of pages31
StatePublished - 2021

Publication series

NamePresented at the U.S. Department of Energy's Bioenergy Technologies Office (BETO) 2021 Project Peer Review, 8-12, 15-16, and 22-26 March 2021

NREL Publication Number

  • NREL/PR-2800-79437


  • algae
  • biorefining
  • pretreatment


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