共 25 条
Effects of ionic catalysis on hydrogen production by the steam gasification of cellulose
被引:23
作者:
Su, Shen
[1
,2
]
Li, Wen
[1
]
Bai, Zongqing
[1
]
Xiang, Hongwei
[2
]
Bai, Jin
[1
]
机构:
[1] Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
关键词:
Hydrogen production;
Ionic catalysis;
Dehydrogenation;
Cellulose;
SUPERCRITICAL WATER;
BIOMASS GASIFICATION;
RICH GAS;
PYROLYSIS;
RATIOS;
TAR;
D O I:
10.1016/j.ijhydene.2010.02.066
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this study, significant effects of ionic catalysis on the formation of H-2 and CO during the steam gasification process of cellulose are revealed. The energy of the C-H bonds of cellulose can be remarkably reduced by Na+ and OH- ions produced by the dissociation of NaOH, enabling dehydrogenation of cellulose at low temperature. Dehydrogenation of cellulose is evidently affected by the concentration of Na+ and OH- ions that cellulose can come into contact with. Higher concentrations of Na+ and OH- ions can reduce the initial dehydrogenation temperature of cellulose to lower than 403 K. The production of CO increases after this remarkable dehydrogenation of cellulose, which indicates that the C-O bonds of cellulose are prone to forming CO by pyrolysis. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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页码:4459 / 4465
页数:7
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