Washing Away Bioprocessing Cost: Pressurized Hot Wash Improves Cellulosic Ethanol Technology

Research output: NRELFact Sheet

Abstract

Thermochemical pretreatment is a key step in biotechnology for; converting lignocellulosic biomass to fuel ethanol and other valuable; chemicals. U.S. Department of Energy Biofuels Program researchers have; found that adding a Pressurized Hot Wash (PHW) step immediately; following pretreatment-while the pretreated material is still at high; temperature and pressure-significantly improves theoverall process.; The 'hot-washed' pretreated material can be more efficiently; digested by cellulase enzymes. Additionally, soluble lignins with potentially; valuable unique reactive properties are separated out.
Original languageAmerican English
Number of pages2
StatePublished - 2002

Bibliographical note

10/28/02: posted in ECD [ck]

NREL Publication Number

  • NREL/FS-510-31786

Other Report Number

  • DOE/GO-102002-1625

Keywords

  • ethanol
  • hot wash
  • pretreatment

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