松木屑催化气化制取富氢燃气

doi:10.16085/j.issn.1000-6613.2017.06.027

化工进展 ›› 2017, Vol. 36 ›› Issue (06): 2158-2163.DOI: 10.16085/j.issn.1000-6613.2017.06.027

松木屑催化气化制取富氢燃气

孙宁, 应浩, 徐卫, 孙云娟, 许玉, 贾爽

中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042

收稿日期:2016-09-02 修回日期:2017-02-10 出版日期:2017-06-05 发布日期:2017-06-05
通讯作者: 应浩
作者简介:孙宁(1991—),女,硕士研究生,研究方向为生物质热化学转化技术。
基金资助:
引进国际先进林业科学技术项目（2014-4-32）及林业科学技术推广项目（[2015]31）。

Catalytic gasification of pine sawdust for producing hydrogen-rich gas

SUN Ning, YING Hao, XU Wei, SUN Yunjuan, XU Yu, JIA Shuang

Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu, China

Received:2016-09-02 Revised:2017-02-10 Online:2017-06-05 Published:2017-06-05

摘要/Abstract

摘要： 以松木屑为生物质原料，水蒸气为气化介质，使用自制镍基复合催化剂Ni-CaO，在固定床气化炉中进行生物质催化气化反应，考察了催化剂用量、气化温度和水蒸气流量对生物质水蒸气气化制氢特性的影响。结果表明，当催化剂与原料质量比由0增加至1.5时，H₂体积分数由45.58%增至60.23%，产氢率由38.80g/kg增至93.75g/kg，当催化剂与原料质量比为2时，两者均有增加，但是变化不明显。温度从700℃增至750℃时，燃气中H₂的体积分数由54.24%增至60.23%，CO₂由21.09%降至13.18%，继续升高温度，H₂的体积分数和燃气热值均逐渐降低，以Ni-CaO为催化剂时750℃是制取富氢燃气的最佳气化温度。当气化温度为750℃，催化剂与原料质量比为1.5，水蒸气通入量为0.34g/（min·g）时，H₂体积分数为60.23%，产氢率为93.75g/kg，燃气热值为12.13MJ/m³。

关键词: 生物质, 催化剂, 气化, 制氢

Abstract: Steam catalytic gasification experiments of pine sawdust to produce hydrogen-rich gas were carried out in a high-temperature fixed bed reactor with Ni-CaO as the catalyst. The influence of catalyst dosage,gasification temperature and steam flow rate on hydrogen content were investigated. The results showed that by increasing the catalyst to sawdust ratio from 0 to 1.5(g/g),the hydrogen content was increased from 45.58% to 60.23%,and the hydrogen yield was increased from 38.80 g/kg to 93.75g/kg,whereas the hydrogen content and hydrogen yield only showed a modest increase when the ratio was changed into 2. Increasing the gasification temperature from 700℃ to 750℃ significantly increased the hydrogen content from 54.24% to 60.23%,and decreased the carbon dioxide content from 21.09% to 13.18%,but higher temperature gave rise to a decrease in the hydrogen content and the low heating value.When the best gasification temperature was taken as 750℃,and the catalyst to sawdust ratio and the steam flow rate were 1.5(g/g) and 0.34g/(min·g),the resulting hydrogen content,dry gas yield and low heating value were 60.23%,93.75g/kg,and 12.13MJ/m³,respectively.

Key words: biomass, catalyst, gasification, hydrogen production

中图分类号:

TQ35
TB322

孙宁, 应浩, 徐卫, 孙云娟, 许玉, 贾爽. 松木屑催化气化制取富氢燃气[J]. 化工进展, 2017, 36(06): 2158-2163.

SUN Ning, YING Hao, XU Wei, SUN Yunjuan, XU Yu, JIA Shuang. Catalytic gasification of pine sawdust for producing hydrogen-rich gas[J]. Chemical Industry and Engineering Progress, 2017, 36(06): 2158-2163.

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松木屑催化气化制取富氢燃气

Catalytic gasification of pine sawdust for producing hydrogen-rich gas

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