The Cr modified ZSM-5 zeolite catalysts deposited on paper-like sintered stainless steel fibers (Cr/ZSM-5/PSSF) were synthesized via the papermaking/sintering technology, secondary growth process as well as metallic organic chemical vapor deposition method. Catalytic reaction kinetics analysis of trichloroethylene (TCE) over the fixed-bed reactor based on Cr modified ZSM-5 composite were performed using the Mars-van Krevelen and power-rate law kinetic model. The analysis results indicate that the Mars-van Krevelen kinetic model could fit well the catalytic kinetic data. The catalytic reaction for TCE combustion over Cr/ZSM-5/PSSF composite is the interaction between the oxygen-rich centers and TCE molecule based on the oxidation-reduction mechanism. The reaction activation energy for the surface oxidation is 64.57 kJ/mol and that of surface reduction reaction is 122.25 kJ/mol.

中文翻译：

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Cr/ZSM-5/PSSF复合材料上三氯乙烯催化燃烧动力学研究


采用造纸/烧结技术、二次生长工艺以及金属有机化学气相沉积方法，合成了沉积在纸状烧结不锈钢纤维上的Cr改性ZSM-5沸石催化剂（Cr/ZSM-5/PSSF）。采用Mars-van Krevelen和幂率定律动力学模型对基于Cr改性ZSM-5复合材料的固定床反应器上的三氯乙烯（TCE）催化反应动力学进行了分析。分析结果表明Mars-van Krevelen动力学模型能够很好地拟合催化动力学数据。 Cr/ZSM-5/PSSF复合材料上TCE燃烧的催化反应是富氧中心与TCE分子之间基于氧化还原机制的相互作用。表面氧化反应的反应活化能为64.57 kJ/mol，表面还原反应的反应活化能为122.25 kJ/mol。