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Development of a Catalyst/Sorbent for Methane-Steam Reforming  

Cho, Yong-Hoon (Fuel Process Research Center, Korea Institute of Energy Research)
Na, Jeong-Geol (Fuel Process Research Center, Korea Institute of Energy Research)
Kim, Seong-Soo (Fuel Process Research Center, Korea Institute of Energy Research)
Kim, Jin-Gul (Department of Chemical Engineering, Soonchunhyang University)
Chung, Soo-Hyun (Fuel Process Research Center, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.44, no.3, 2006 , pp. 307-313 More about this Journal
Abstract
In order to improve the efficiency of methane steam reforming process, a part of the system which produces hydrogen from heavy hydrocarbon resources such as coal, we combined metal catalyst with CaO sorbent and fabricated catalyst/sorbent. To increase the porosity and the compressive strength of sorbent, carbon black and ${\alpha}-alumina$ were mixed with CaO powder during preparation. The effects of sorbent composition on the physical properties were investigated by SEM, TGA, BET, XRD, abrasion strength measuring device and adsorption-desorption instrument. Sorbent with 5 wt％ $Al_2O_3$ and 10 wt％ carbon black showed the best physical features with $7.61kg_f$ strength and 47％ $CO_2$ adsorption capability. Various metal catalysts such as Ni, Co and Fe were supported on the sorbent developed and 10 wt％ Ni/sorbent was selected for methane steam reforming process based on the result of reaction experiment. The reaction system using the catalyst/sorbent showed better $H_2$ productivity compared to the detached system with catalyst and sorbent, indicating the effectiveness of the system developed in this study.
Keywords
Methane-Steam Reforming; Catalysts/Sorbent; $CO_2$ Adsorption;
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