Effects of ZrO2 and Al2O3 on the performance of Mo-based catalysts in methanation

ZHANG Kai; LIN Ming-gui; LU Huai-qian; HOU Bo; WANG Jun-gang; JIA Li-tao; LI De-bao

Volume 45 Issue 7

Jul. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(7): 854-862

ZHANG Kai, LIN Ming-gui, LU Huai-qian, HOU Bo, WANG Jun-gang, JIA Li-tao, LI De-bao. Effects of ZrO2 and Al2O3 on the performance of Mo-based catalysts in methanation[J]. Journal of Fuel Chemistry and Technology, 2017, 45(7): 854-862.

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ZHANG Kai, LIN Ming-gui, LU Huai-qian, HOU Bo, WANG Jun-gang, JIA Li-tao, LI De-bao. Effects of ZrO₂ and Al₂O₃ on the performance of Mo-based catalysts in methanation[J]. Journal of Fuel Chemistry and Technology, 2017, 45(7): 854-862.

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Effects of ZrO₂ and Al₂O₃ on the performance of Mo-based catalysts in methanation

ZHANG Kai^{1, 2},
LIN Ming-gui^{1
,
,},
LU Huai-qian¹,
HOU Bo¹,
WANG Jun-gang¹,
JIA Li-tao¹,
LI De-bao^{1
,
,}

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2017-03-30
Rev Recd Date: 2017-04-30

Available Online: 2021-01-23

Publish Date: 2017-07-10

Abstract

Abstract

Mo/ZrO₂ and Mo/Al₂O₃ catalysts with a MoO₃ loading of 5% were prepared by incipient wetness impregnation method; the effect of support on the performance of Mo-based catalysts in methanation was then investigated in three different feeds. The results indicate that ZrO₂ as a support can promote the methanation and water-gas shift (WGS) reaction. ZrO₂ is beneficial to the sulfuration and reduction of MoO₃. The Mo sulfidation degree and the content of Mo⁴⁺ on Mo/ZrO₂ are higher than that on Mo/Al₂O₃. Besides, the curved MoS₂ basal plane on Mo/ZrO₂ can provide the active sites for methanation and WGS, which is effective to enhance the performance of Mo-based catalysts in methanation.
- CO/CO₂ hydrogenation,
- methanation,
- oxide supports,
- sulfidation degree

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References(29)

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