Co—Beta／Mordenite复合结构催化剂上甲烷选择催化还原NO的研究  

STUDIES ON SELECTIVE CATALYTIC REDUCTION OF NO WITH CH4 OVER Co-BETA/MORDENITE COMPOSITE CATALYSTS

作　　者：阎晓亮[2] 陈树伟[2] 郑家军[1] 马静红[1] 李瑞丰[1,2] 

机构地区：[1]太原理工大学教育部煤科学与技术重点实验室,山西太原030024 [2]太原理工大学化学化工学院,山西太原030024

出　　处：《石油学报（石油加工）》2008年第B10期167-169,共3页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目（20206020）资助

摘　　要：研究了离子交换法制备的Co—Beta／Mordenite复合结构催化剂在富氧条件下甲烷选择催化还原NO反应的催化性能。结果表明，Co-Beta／Mordenite催化剂在较宽的温度范围（450-650℃）具有良好的催化活性，NO的最大转化率达60％以上；并在10h内保持了良好的稳定性。Co—Beta／Mordenite催化剂也表现出较好的抗SO2毒化性能和可逆性。Selective catalytic reduction （SCR） of NO with methane in the presence of excess oxygen was studied for the first time over Co2＋-exchanged Beta/Mordenite composite catalysts. Co-Beta/Mordenite catalyst prepared by ion exchang method was active over a wide-temperature range （450--650℃）, the maximum NO conversions above 60 was reached. Moreover, the Co-Beta/Mordcnite also exhibited good stability during a test of 10 h. It was found that Co-Beta/Mordenite was tolerant to SO2 to some extent and reversible in activity after the removal of SO2.

关 键 词：选择催化还原 CH4 NO 沸石复合物 

分 类 号：X511[环境科学与工程—环境工程]