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Enhanced activity of an In-Fe2O3/H-ZSM-5 catalyst for NO reduction with methane

机译:Enhanced activity of an In-Fe2O3/H-Zsm-5 catalyst for NO reduction with methane

摘要

Selective reduction of NO by CH4 on an In-Fe2O3/H-ZSM-5 catalyst was investigated in the presence of excess oxygen. Compared with In/H-ZSM-5, the In-Fe2O3/H-ZSM-5 catalyst with high Fe2O3 contents showed higher activity in a wide range of reaction temperatures. It was found that the addition of Fe2O3 yielded a promotion effect on CH4 activation. The influence of water vapor on NO conversion was also investigated. The activity of the In/H-ZSM-5 catalyst has been found to be strongly inhibited by water vapor, while the In-Fe2O3/H-ZSM-5 catalyst remained fairly active in the presence of 3.3% steam. (C) 2000 Elsevier Science B.V. All rights reserved.
机译:在过量氧气存在下,研究了在In-Fe2O3 / H-ZSM-5催化剂上通过CH4选择性还原NO的问题。与In / H-ZSM-5相比,Fe2O3含量高的In-Fe2O3 / H-ZSM-5催化剂在较宽的反应温度范围内均显示出较高的活性。发现添加Fe 2 O 3对CH 4活化产生促进作用。还研究了水蒸气对NO转化的影响。发现In / H-ZSM-5催化剂的活性被水蒸气强烈抑制,而In-Fe2O3 / H-ZSM-5催化剂在3.3%蒸汽存在下仍保持相当的活性。 (C)2000 Elsevier Science B.V.保留所有权利。

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