Rh/SiC在催化甲烷溴氧化反应中的应用及表观活化能计算
首发时间:2018-06-06
摘要:为进一步提高甲烷溴氧化反应性能,制备了一系列载体负载Rh的催化剂,并进行了催化性能测试,发现0.03Rh/SiC具有较好的甲烷溴氧化反应催化性能。通过对反应条件的优化,在甲烷、氧气和氢溴酸的流速分别为6.8 mL/min、4 mL/min和7.5 mL/h,温度为600 C的条件下,获得了34.0%的CH4转化率和76.7%的CH3Br选择性。并根据反应数据对甲烷溴氧化反应的表观活化能进行了计算。这一系列工作有利于加深对甲烷溴氧化反应的理解,并且为甲烷溴氧化反应的进一步研究提供理论和实践基础。
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The Catalytic Study of Methane Oxy-Bromination over Rh/SiC and Calculation of Aparent Activation Energy
Abstract:A series of Rh-based catalysts were synthesized and tested to obtain a high OBM reactivity, and the 0.03Rh/SiC catalyst was found to be superior. To get a superior reaction condition, the flow rate of reactant and the reaction temperature were investigated, and the best performance displaying a CH4 conversion of 34.0% and a CH3Br selectivity of 76.6% was achieved at 600 C with the flow rate of CH4, O2 and HBr solution were 6.8 mL/min, 4 mL/min and 7.5 mL/h respectively. And the apparent activation energy was calculated. It\'s favorable to a deep understanding of OBM reaction and providing a theoretical and practical basis for further research.
Keywords: Industrial Catalysis Rh-based catalysts Methane Oxy-Bromination Methyl bromide
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