☆ 4.6 Article

Promising Utilization of CO2 for Syngas Production over Mg2+- and Ce2+-Promoted Ni/γ-Al2O3 Assisted by Nonthermal Plasma

ACS OMEGA (2020)

期刊

ACS OMEGA

卷 5, 期 23, 页码 14040-14050

出版社

AMER CHEMICAL SOC

DOI: 10.1021/acsomega.0c01442

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Chemistry, Multidisciplinary

资金

MNRE, India [103/202/2012-NT]
DST-SERB, India [ITS/2019/001079]

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摘要

Dry reforming of methane is conducted in a catalyst packed-bed dielectric barrier discharge (DBD) reactor aiming to improve the reaction efficiency. The MgO- and CeO2- promoted Ni/gamma-Al2O3 catalyst is tested to carry out the reaction. An interesting observation is that Ni/MgO_Al2O3 integration provides similar to 35 and 13% conversion of CH4 and CO2, respectively. The highest syngas ratio of 0.94 is obtained with Ni/MgO_Al2O3, whereas the ratio is only 0.57 with Ni/CeO2 _Al2O3 and 0.64 with bare DBD. In addition, Ni/CeO2 _Al2O3 offers the highest selectivity (68%) of CO due to the oxygen buffer property of CeO2. Finally, the optimal acid/base property is highly desirable for the dry reforming reaction.

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