Preferential oxidation of CO in a hydrogen-rich gas through Au/NaY catalytic membranes

Ziping Zhu, Yanmei Liu, Zhanzhao Yang, Xuehong Gu, Nanping Xu

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

This paper describes novel Au/NaY catalytic membranes for preferential oxidation of CO (CO-PROX) in an H2-rich gas. NaY zeolite membranes with a high CO2/N2 separation factor were loaded with nanosized Au particles using an ion-exchanged method. X-ray diffraction analyses showed that the structure of the NaY zeolite was not damaged by the ion exchange process. CO-PROX experiments showed that the catalytic membranes had excellent catalytic performance for selective oxidation of CO. The CO/H 2 molar ratio on the permeate side decreased with increasing operating temperature in the range of 80-200°C. At 200°C, almost no CO was detected from the permeate stream of a catalytic membrane with the feed containing 0.67 CO, 1.33 O2, 32.67 H2, and He in balance. Thus, these Au/NaY catalytic membranes show a promise for CO removal from hydrogen fuels.

源语言英语
页(从-至)397-403
页数7
期刊Tsinghua Science and Technology
15
4
DOI
出版状态已出版 - 2010

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