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Methane reforming reaction with carbon dioxide over SBA-15 supported Ni–Mo bimetallic catalysts by Tao Huang; Wei Huang; Jian Huang; Peng Ji is a Engineering article available to read on EtoBox.

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## 2 C Carbon deposition Shell-like A series of mesoporous molecular sieves SBA-15 supported Ni-Mo bimetallic catalysts (xMo1Ni, Ni = 12 wt.%, Mo/Ni atomic ratio = x, x = 0, 0.3, 0.5, 0.7) were prepared using co-impregnation method for carbon dioxide reforming of methane. The catalytic performance of these catalysts was investigated at 800 °C, atmospheric pressure, GHSV of 4000 ml•g cat -1 •h -1 and a V(CH 4 )/(CO 2 ) ratio of 1 without dilute gas. The result indicated that the Ni-Mo bimetallic catalysts had a little lower initial activity compared with Ni monometallic catalyst, but it kept very stable performance under the reaction conditions. In addition, the Ni-Mo bimetallic catalyst with Mo/Ni atomic ratio of 0.5 showed high activity, superior stability and the lowest carbon deposition rate (0.00073g c •g cat -1 •h -1 ) in 600-h time on stream. The catalysts were characterized by power X-ray diffraction, N 2 -physisorption, H 2 -TPR, CO 2 -TPD, TG and TEM. The results indicate that the Ni-Mo bimetallic catalysts have smaller metal particle, higher metal dispersion, stronger basicity, metal-support interaction and Mo 2 C species. It is concluded that Mo species in the Ni-Mo bime

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Author

Tao Huang; Wei Huang; Jian Huang; Peng Ji

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-3820)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)