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    Author(s): J.Y. Zhu; G.S. Wang; X.J. Pan; R. Gleisner
    Date: 2008
    Source: International Conference on Biomass Energy Technologies : Guangzhou, China, December 3-5, 2008: Volume 1. [Guangzhou, China] : Guangzhou Institute of Energy Conversion, The Chinese Academy of Science, 2008: Pages 1-12.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (379 KB)

    Description

    The development of biorefineries to produce fuel ethanol and commodity chemicals from lignocellulosic biomass is a potential alternative to current reliance on non-renewable resources. However, many technological barriers remain despite research progress in the past several decades. This article examines the major process barriers in biochemical conversion of biomass to cellulosic ethanol. We review the key pretreatment processes, including a process recently developed by the authors for biomass conversion, and the technical potentials for commercialization. The importance of feedstock physical size reduction and issues related to size-reduction energy consumption and substrate size characterization are also discussed. The article also analyzes and compares enzymatic conversion of cellulose from different feedstocks and the recovery of hemicellulose sugars from different pretreatments. Finally, we discuss the commercial viability of the existing processes in terms of the availability of commercially proven capital equipment.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Zhu, J.Y.; Wang, G.S.; Pan, X.J.; Gleisner, R. 2008. The Status of and key barriers in lignocellulosic ethanol production : a technological perspective. International Conference on Biomass Energy Technologies : Guangzhou, China, December 3-5, 2008: Volume 1. [Guangzhou, China] : Guangzhou Institute of Energy Conversion, The Chinese Academy of Science, 2008: Pages 1-12.

    Keywords

    Pretreatment, lignocellulose, bioenergy, saccharification, cellulosic ethanol, hydrolysis, size reduction, SPORL, enzymes, biotechnology, industrial applications, biodegradation, cellulose, hemicellulose, alcohol, fuelwood, biomass energy, energy consumption, forest products industry, technological innovations, biomass, utilization, sugars, feedstock, bioconversion, saccharification, wood as fuel, biomass fuel, chemical utilization, biorefining, wood extractives

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