The effects of Pt addition to supported Ni catalysts on dry (CO2) reforming of methane to syngas

被引：54

作者：

Mahoney, Elizabeth G. ^{[1
]}

Pusel, Julia M. ^{[2
]}

Stagg-Williams, Susan M. ^{[1
]}

Faraji, Sepideh ^{[2
]}

机构：

[1] Univ Kansas, Dept Chem & Petr Engn, Lawrence, KS 66045 USA

[2] Calif State Univ Long Beach, Dept Chem Engn, Long Beach, CA 90840 USA

来源：

JOURNAL OF CO2 UTILIZATION | 2014年 / 6卷

关键词：

Pt-Ni/Al2O3; Pt-Ni/CeZrO2; Ni/Al2O3; Ni/CeZrO2; CO2; reforming; Syngas production; CARBON-DIOXIDE; NI/AL2O3; CATALYST; RESISTANCE; HYDROGEN; KINETICS; SURFACE;

D O I：

10.1016/j.jcou.2014.01.003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ni/CeZrO2 and Ni/Al2O3 catalysts promoted by Pt were explored for dry reforming of methane at temperatures ranging from 100 degrees C to 800 degrees C. Temperature programmed reduction (TPR) and temperature programmed reaction studies showed that Pt increases the reducibility of Ni-based monometallic catalysts. TPR studies suggested an alloy formation between Pt and Ni. The induction period with the Pt is much lower than on the Ni alone especially on the Al2O3. At lower temperatures, the Pt-Ni bimetallic catalyst showed slightly higher activity for hydrogen production during dry reforming of methane. Reaction investigations over alumina supported catalysts demonstrated a higher H-2:CO ratio than ceria supported catalysts. A mechanism involving more steam reforming due to more water consumption is proposed for the reaction on alumina supported catalysts. Published by Elsevier Ltd.

引用

页码：40 / 44

页数：5

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