| 基于生物质稻秸气化的催化剂研究 |
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| 引用本文： | 谢大幸,肖军,谢玉荣,沈来宏,朱进,赵坤.基于生物质稻秸气化的催化剂研究[J].太阳能学报,2011,32(1):8-13. |
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| 作者姓名： | 谢大幸 肖军 谢玉荣 沈来宏 朱进 赵坤 |
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| 作者单位： | 东南大学能源与环境学院热能工程研究所,南京,210096 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究(973)发展规划，新世纪人才支持计划项目 |
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| 摘 要： | 利用浸渍法和沉淀法分别制备了Ni/Al2O3（NiAlI）和Ni/白云石（NiDoP）两类生物质气化催化剂,采用氢气还原热重实验和固定床气化实验对两类催化剂进行性能验证,分析了催化剂制备方法、活性组分、还原温度、负载量、还原度、比表面积等因素对气化效果的影响。结果显示沉淀法制备的NiDoP中Ni以Mg0.4Ni0.6O固溶体形式存在,其适宜的还原温度范围为400～600℃,浸渍法制备的NiAlI中Ni以NiAl2O4形式存在,其适宜的还原温度范围为800～900℃。500℃还原后的20NiDoP较20NiAlI具有更好的催化性能,900℃时20NiDoPA催化下的氢产率达34mol/（kg daf）,碳转化率达96%。添加5%K2CO3改性后的20NiDoP催化剂中,K2O在气化过程中起了显著的催化作用。此外,在生物质气化催化剂制备过程中需综合考虑比表面积和负载量的相互关系。
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| 关 键 词： | 生物质气化 催化剂 催化性能 碳转化率 还原度 |
STUDY ON CATALYSTS FOR RICE STRAW GASIFICATION |
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| Xie Daxing,Xiao Jun,Xie Yurong,Shen Laihong,Zhu Jin,Zhao Kun.STUDY ON CATALYSTS FOR RICE STRAW GASIFICATION[J].Acta Energiae Solaris Sinica,2011,32(1):8-13. |
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| Authors: | Xie Daxing Xiao Jun Xie Yurong Shen Laihong Zhu Jin Zhao Kun |
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| Affiliation: | Xie Daxing,Xiao Jun,Xie Yurong,Shen Laihong,Zhu Jin,Zhao Kun (Thermoenergy Engineering Research Institute,School of Energy and Environment,Southeast University,Nanjing 210096,China) |
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| Abstract: | Two types of biomass gasification catalysts(Ni/dolomite and Ni/Al_2O_3) were prepared by impregnation and precipitation methods,respectively.The performance of catalysts verification experiments were carried out by using of H_2- TGA and fixed bed gasifier.And the effects of the factors such as catalyst preparation methods,active components, reduction temperature,loading amount,reduction degree and specific surface area were analyzed.The results showed that the Mg_(0.4)Ni_(0.6)O structure is formed in the Ni... |
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| Keywords: | biomass gasification catalyst catalytic performance carbon conversion rate reduction degree |
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