Impact of mixed feedstocks and feedstock densification on ionic liquid pretreatment efficiency

Jian Shi, Vicki S. Thompson, Neal A. Yancey, Vitalie Stavila, Blake A. Simmons, Seema Singh

Research output: Contribution to journalArticlepeer-review

79 Scopus citations


Background: Lignocellulosic biorefineries must be able to efficiently process the regional feedstocks that are available at cost-competitive prices year round. These feedstocks typically have low energy densities and vary significantly in composition. One potential solution to these issues is blending and/or densifying the feedstocks in order to create a uniform feedstock. Results & discussion: We have mixed four feedstocks - switchgrass, lodgepole pine, corn stover and eucalyptus - in flour and pellet form, and processed them using the ionic liquid 1-ethyl-3-methylimidazolium acetate. Sugar yields from both the mixed flour and pelletized feedstocks reach 90% within 24 h of saccharification. Conclusion: Mixed feedstocks, in either flour or pellet form, are efficiently processed using this pretreatment process, and demonstrate that this approach has significant potential.

Original languageEnglish
Pages (from-to)63-72
Number of pages10
Issue number1
StatePublished - Jan 2013

Bibliographical note

Funding Information:
This work was part of the US Department of Energy (DOE) Joint BioEnergy Institute (CA, USA) ( supported by the US DOE, Office of Science, Office of Biological and Environmental Research (Washington, DC, USA), through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory (CA, USA) and the US DOE (Washington, DC, USA). The US Government retains and the publisher, by accepting the article for publication, acknowledges that the US Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US Government purposes. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


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