期刊
RESEARCH ON CHEMICAL INTERMEDIATES
卷 43, 期 1, 页码 545-559出版社
SPRINGER
DOI: 10.1007/s11164-016-2639-z
关键词
Dry reforming; Magnesium aluminate; Carbon dioxide; Nanopowders; Nickel catalysts
资金
- Iran National Science Foundation (INSF)
- University of Kashan [158426/112]
Mesoporous MgAl2O4 nanopowders were synthesized via the homogenous precipitation method and employed as a support for Ni catalysts in the dry reforming reaction. The prepared samples were characterized by XRD, BET, TPR, TPO, NH3-TPD, and SEM techniques. The XRD and BET results revealed that the prepared MgAl2O4 powder exhibited a nanocrystalline structure with high surface area (175 m(2)g(-1)). The catalytic tests, including activity and stability tests, showed that the prepared catalysts with various nickel loadings possessed high activity and stability in reaction. The Ni/MgAl2O4 with the highest amount of Ni had an acceptable performance in a long-term stability test. Increasing nickel loading increased the methane conversion and the amount of deposited carbon. The effects of feed ratio and GHSV on the catalytic activity of the Ni/MgAl2O4 catalyst were investigated in detail.
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