Catalytic combustion of low concentration methane in micro-combustor

doi:10.11949/j.issn.0438-1157.20150315

CIESC Journal ›› 2015, Vol. 66 ›› Issue (S1): 216-221.DOI: 10.11949/j.issn.0438-1157.20150315

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Catalytic combustion of low concentrationmethane in micro-combustor

LUO Chaoming, LI Yanxia, LIU Zhongliang, DONG Yuwan

Key Laboratory of Enhanced Heat Transfer and Energy Conversion, Ministry of Education, Key Laboratory of Heat Transfer and Energy Conversion, Beijing Municipality, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

Received:2015-03-12 Revised:2015-03-18 Online:2015-06-30 Published:2015-06-30
Supported by:
supported by the National Natural Science Foundation of China (51306005) and the Beijing Municipal Natural Science Foundation (3132011).

低浓度甲烷在微小燃烧器中的催化燃烧实验

骆潮明, 李艳霞, 刘中良, 董予宛

北京工业大学环境与能源工程学院, 强化传热与过程节能教育部重点实验室, 传热与能源利用北京市重点实验室, 北京 100124

通讯作者: 刘中良
基金资助:
国家自然科学基金项目(51306005);北京市自然科学基金项目(3132011)。

Abstract

Abstract:

The Fe-Ni alloy metal (70%Fe-30%Ni) foams were used as a base material for the catalyst support, and the metal foam based monolithic catalysts (Pd/Al₂O₃/Fe-Ni) were prepared by wet impregnation. Then experimental study the catalytic combustion of low concentrationmethane in micro-combustor over metal foam monolithic catalyst. It analyzed the influences of reactor temperature, CH₄ concentration and flow rate on methane conversion rate. The results showed that conversion rate increased with the increase of reactor temperature and the decrease of mixture flow rate and the increase of CH₄ concentration. Further analysis showed that the temperature is the key factors for CH₄ conversion. When the reactor temperature is 550℃, CH₄concentration is 5%, mixture flow rate is 950 K, the conversion rate of CH₄ can achieve to 98.7%.

Key words: catalyst support, catalyst, low concentration, methane, catalytic combustion, micro-combustor

摘要：

选用泡沫金属(Fe-Ni)作为催化剂载体, 通过浸渍法制备了整体式催化剂(Pd/Al₂O₃/Fe-Ni)。然后使用该泡沫金属载体整体式催化剂在微小燃烧器中对低浓度甲烷进行催化燃烧实验, 分析了燃烧器温度、甲烷浓度以及流量对甲烷转化率的影响。结果表明, 随着燃烧反应器内温度的升高, 混合气体总流量的降低和甲烷浓度的增大, 甲烷的转化率增大;进一步分析表明温度是影响转化率最关键的因素, 当燃烧反应器内温度为550℃, 甲烷浓度为5%, 总流量为50 ml·min^-1时, 甲烷的转化率可以达到98.7%。

关键词: 催化剂载体, 催化剂, 低浓度, 甲烷, 催化燃烧, 微小燃烧器

CLC Number:

TQ032.4

LUO Chaoming, LI Yanxia, LIU Zhongliang, DONG Yuwan. Catalytic combustion of low concentrationmethane in micro-combustor[J]. CIESC Journal, 2015, 66(S1): 216-221.

骆潮明, 李艳霞, 刘中良, 董予宛. 低浓度甲烷在微小燃烧器中的催化燃烧实验[J]. 化工学报, 2015, 66(S1): 216-221.

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Catalytic combustion of low concentrationmethane in micro-combustor

低浓度甲烷在微小燃烧器中的催化燃烧实验

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