Document Detail


Preparation of levoglucosenone through sulfuric acid promoted pyrolysis of bagasse at low temperature.
MedLine Citation:
PMID:  22047659     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Fast pyrolysis of bagasse pretreated by sulfuric acid was conducted in a fixed bed reactor to prepare levoglucosenone (LGO), a very important anhydrosugar for organic synthesis. The liquid yield and LGO yield were studied at temperatures from 240 to 350°C and sulfuric acid loadings from 0.92 to 7.10wt.%. An optimal LGO yield of 7.58wt.% was obtained at 270°C with a sulfuric acid pretreatment concentration of 0.05M (corresponding to 4.28wt.% sulfuric acid loading). For comparison, microcrystalline cellulose pretreated by 0.05M sulfuric acid solution was pyrolyzed at temperature from 270°C to 320°C, and bagasse loaded with 3-5wt.% phosphoric acid was pyrolyzed at temperature from 270°C to 350°C. The highest yield of LGO from bagasse was 30% higher than that from microcrystalline cellulose, and treatment with sulfuric acid allowed a 21% higher yield than treatment with phosphoric acid.
Authors:
Xian-Wei Sui; Zhi Wang; Bing Liao; Ying Zhang; Qing-Xiang Guo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-12
Journal Detail:
Title:  Bioresource technology     Volume:  -     ISSN:  1873-2976     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-11-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Anhui Province Key Laboratory for Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
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