Document Detail


Maximizing the liquid fuel yield in a biorefining process.
MedLine Citation:
PMID:  18781691     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Biorefining strives to recover the maximum value from each fraction, at minimum energy cost. In order to seek an unbiased and thorough assessment of the alleged opportunity offered by biomass fuels, the direct conversion of various lignocellulosic biomass was studied: aspen pulp wood (Populus tremuloides), aspen wood pretreated with dilute acid, aspen lignin, aspen logging residues, corn stalk, corn spathe, corn cob, corn stover, corn stover pellet, corn stover pretreated with dilute acid, and lignin extracted from corn stover. Besides the heating rate, the yield of liquid products was found to be dependent on the final liquefaction temperature and the length of liquefaction time. The major compounds of the liquid products from various origins were identified by GC-MS. The lignin was found to be a good candidate for the liquefaction process, and biomass fractionation was necessary to maximize the yield of the liquid bio-fuel. The results suggest a biorefinery process accompanying pretreatment, fermentation to ethanol, liquefaction to bio-crude oil, and other thermo-conversion technologies, such as gasification. Other biorefinery options, including supercritical water gasification and the effectual utilization of the bio-crude oil, are also addressed.
Authors:
Bo Zhang; Marc von Keitz; Kenneth Valentas
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biotechnology and bioengineering     Volume:  101     ISSN:  1097-0290     ISO Abbreviation:  Biotechnol. Bioeng.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-10-28     Completed Date:  2008-12-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502021     Medline TA:  Biotechnol Bioeng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  903-12     Citation Subset:  IM    
Affiliation:
BioTechnology Institute, University of Minnesota, 240 Gdortner Labs, 1479 Gortner Avenue, St. Paul, Minnesota 55108, USA.
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MeSH Terms
Descriptor/Qualifier:
Biotechnology / methods*
Chemical Fractionation / methods*
Ethanol / chemistry,  isolation & purification*
Extraction and Processing Industry / methods
Fermentation
Gas Chromatography-Mass Spectrometry
Lignin / chemistry
Petroleum*
Phase Transition
Plant Components, Aerial / chemistry
Populus / chemistry
Sulfuric Acids
Transition Temperature
Wood / chemistry
Chemical
Reg. No./Substance:
0/Petroleum; 0/Sulfuric Acids; 64-17-5/Ethanol; 9005-53-2/Lignin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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