Liquefaction of crop residues for polyol production
The liquefaction of crop residues in the presence of ethylene glycol, ethylene carbonate, or polyethylene glycol using sulfuric acid as a catalyst was studied. For all experiments, the liquefaction was conducted at 160C and atmospheric pressure. The mass ratio of feedstock to liquefaction solvents...
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North Carolina State University
2006-11-01
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doaj-2c29956a3b9b45eaaab805effeeaeace2020-11-25T01:51:57ZengNorth Carolina State UniversityBioResources1930-21262006-11-0112248256Liquefaction of crop residues for polyol productionWan, C.Wang, T.Zhang, L.Zang, L.Li, Y.Mao, Z.Liang, L.The liquefaction of crop residues in the presence of ethylene glycol, ethylene carbonate, or polyethylene glycol using sulfuric acid as a catalyst was studied. For all experiments, the liquefaction was conducted at 160C and atmospheric pressure. The mass ratio of feedstock to liquefaction solvents used in all the experiments was 30:100. The results show that the acid catalyzed liquefaction process fit a pseudo-first-order kinetics model. Liquefaction yields of 80, 74, and 60% were obtained in 60 minutes of reaction when corn stover was liquefied with ethylene glycol, a mixture of polyethylene glycol and glycerol (9:1, w/w), and ethylene carbonate, respectively. When ethylene carbonate was used as solvent, the liquefaction yields of rice straw and wheat straw were 67% and 73%, respectively, which is lower than that of corn stover (80%). When a mixture of ethylene carbonate and ethylene glycol (8:2, w/w) was used as solvent, the liquefaction yields for corn stover, rice straw and wheat straw were 78, 68, and 70%, respectively.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_01_2_248_256_Liang_MLWWZZ_Liquefactions_CropResidues_PolyolProduction/24Corn stoverWheat strawRice strawLiquefactionPolyol |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wan, C. Wang, T. Zhang, L. Zang, L. Li, Y. Mao, Z. Liang, L. |
spellingShingle |
Wan, C. Wang, T. Zhang, L. Zang, L. Li, Y. Mao, Z. Liang, L. Liquefaction of crop residues for polyol production BioResources Corn stover Wheat straw Rice straw Liquefaction Polyol |
author_facet |
Wan, C. Wang, T. Zhang, L. Zang, L. Li, Y. Mao, Z. Liang, L. |
author_sort |
Wan, C. |
title |
Liquefaction of crop residues for polyol production |
title_short |
Liquefaction of crop residues for polyol production |
title_full |
Liquefaction of crop residues for polyol production |
title_fullStr |
Liquefaction of crop residues for polyol production |
title_full_unstemmed |
Liquefaction of crop residues for polyol production |
title_sort |
liquefaction of crop residues for polyol production |
publisher |
North Carolina State University |
series |
BioResources |
issn |
1930-2126 |
publishDate |
2006-11-01 |
description |
The liquefaction of crop residues in the presence of ethylene glycol, ethylene carbonate, or polyethylene glycol using sulfuric acid as a catalyst was studied. For all experiments, the liquefaction was conducted at 160C and atmospheric pressure. The mass ratio of feedstock to liquefaction solvents used in all the experiments was 30:100. The results show that the acid catalyzed liquefaction process fit a pseudo-first-order kinetics model. Liquefaction yields of 80, 74, and 60% were obtained in 60 minutes of reaction when corn stover was liquefied with ethylene glycol, a mixture of polyethylene glycol and glycerol (9:1, w/w), and ethylene carbonate, respectively. When ethylene carbonate was used as solvent, the liquefaction yields of rice straw and wheat straw were 67% and 73%, respectively, which is lower than that of corn stover (80%). When a mixture of ethylene carbonate and ethylene glycol (8:2, w/w) was used as solvent, the liquefaction yields for corn stover, rice straw and wheat straw were 78, 68, and 70%, respectively. |
topic |
Corn stover Wheat straw Rice straw Liquefaction Polyol |
url |
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_01_2_248_256_Liang_MLWWZZ_Liquefactions_CropResidues_PolyolProduction/24 |
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