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Iranian Journal of Chemical Engineering، جلد ۱۸، شماره ۳، صفحات ۶۳-۷۳
عنوان فارسی
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عنوان انگلیسی Investigating the Activity of the Supported Bimetallic Ni-Co Catalysts on the Dry Reforming of Methane
چکیده انگلیسی مقاله In this work, the effect of the Si/Al ratio on the activity of zeolite supported bimetallic (Ni-Co) catalysts for Dry Reforming of Methane (DRM) has been studied. Samples are prepared with impregnation and sol-gel methods and then calcined at 550 °C for 2 h. The catalysts were characterized by XRD, XRF, FESEM, BET and TGA. All samples were tested in a micro reactor at three different temperatures (i.e. 700, 750, and 800 °C). Micro reactor test results showed that 800 °C was the proper temperature for DRM. The catalyst with 5 wt % of Ni and 2.5 wt % of Co supported on γ-Alumina have shown a higher H2/CO ratio than other samples. For the zeolite supported catalysts when Ni/Co=2/1, the surface area and pore volume decreased but the H2/CO ratio increased by increasing the Si/Al ratio. Reverse the Water Gas Shift (WGS) reaction was not very active when the catalyst and support showed a basic property. Also, the stability of the catalysts has been tested for 30h on stream.
کلیدواژه‌های انگلیسی مقاله Bimetallic catalyst,Dry Reforming,Ni-Co,Si/Al Ratio,ZSM-5
نویسندگان مقاله Gholamreza Moradi |
Razi University

Hamed Hemmati |
Razi University

Sahar Rostami |
Chemical Engineering Departement,Faculty of engineering, Razi University

نشانی اینترنتی https://www.ijche.com/article_144892_e15e38771b7c37936b7fbe9e7c4e8877.pdf
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