个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:浙江大学
学位:博士
所在单位:环境学院
学科:环境工程. 热能工程
办公地点:环境学院211
联系方式:0411-84707448
电子邮箱:leeam@dlut.edu.cn
Hydrogen production from catalytic steam reforming of benzene as tar model compound of biomass gasification
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论文类型:期刊论文
发表时间:2016-07-01
发表刊物:FUEL PROCESSING TECHNOLOGY
收录刊物:SCIE、EI
卷号:148
页面范围:380-387
ISSN号:0378-3820
关键字:Hydrogen production; Catalyst; Steam reforming; Benzene; Tar
摘要:Tar reduction is an important issue for the development of biomass gasification process. In this work, a NiO/ceramic foam catalyst was developed and studied for catalytic steam reforming of tar model compound (benzene) using a fixed-bed reactor. Different reaction temperatures, equivalent ratios (ER), and steam/carbon (S/C) molar ratios were investigated with a space velocity of 5.6 h(-1). The introduction of the NiO/ceramic foam catalyst showed excellent production of hydrogen and carbon conversion. With the increase of reaction temperature from 700 to 900 degrees C, the yield of hydrogen increased from 140.67 to 182.06 (g H-2 kg(-1) benzene). The increase of ER resulted in the decrease of the H-2 yield. A stability test (including regeneration of reacted catalyst) showed that the catalyst was deactivated by the deposition of carbons (confirmed from scanning electron microscopy), which could be removed using air oxidation at 750 degrees C. The catalytic activity of the catalyst in relation to the hydrogen production could be regained after the regeneration process. A kinetic model study of the process showed that the apparent activation energy and the pre-exponential factor were 73.38 kJ/mol and 1.18 x 10(5) (m(3) kg(catalyst)(-1) h(-1)), respectively. (C) 2016 Elsevier B.V. All rights reserved.