Dilute Acid Pretreatment of Biomass at High Solids Concentrations

K. Grohmann, R. Torget, M. Himmel

Research output: Contribution to journalArticlepeer-review

75 Scopus Citations


The dilute acid pretreatment of biomass aspen wood and wheat straw at high solids concentrations (up to 40 wt%) has been investigated. It produces a concentrated monomeric soluble sugar stream (mainly xylose) with little degradation of the available sugars and a solid residue containing cellulose and lignin. The cellulose remaining in the residue from both aspen and straw pretreated at either 140 degree C or 160 degree C was highly digestible with commercially available enzymes. A somewhat higher acid consumption for wheat straw compared with that for aspen can be alleviated by a cation-removal step.

Original languageAmerican English
Pages (from-to)135-151
Number of pages17
JournalBiotechnology and Bioengineering Symposium
Issue number17
StatePublished - 1986

NREL Publication Number

  • ACNR/JA-232-8876


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