BIMETALLIC Co-Pd CATALYSTS FOR DRY AND BIREFORMING OF METHANE

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Abstract

Carbon dioxide reforming of methane represents a promising method to effectively convert both greenhouse gases – CH4 and CO2 into valuable energy resources via syngas. Adding steam to a feed allow to adjust syngas composition that is important for its following application. This work considers the bimetallic Co-based catalyst modified with additive of noble metal – Pd and supported on alumina tested in the dry (DRM) and combined steam-dry (CSDR) reforming so-called bireforming of methane (BRM) to produce synthesis gas with a controllable ratio of H2/CO. The addition of small amount of noble metal (2-5% from total metal mass) to the Co-based catalyst caused an increase in efficiency of the catalyst in the both processes. The bimetallic 5%Co-Pd/Al2O3 catalyst revealed the high stable activity and selectivity during its long-term continuous testing. Thus, in BRM the extent of conversion of CH4 and CO2 are 93 and 84% respectively at t = 700оС, CH4:CO2:H2O = 1:1:0.5 under atmospheric pressure. No losses of activity and selectivity of the 5%Co-Pd(4.9:0.1)/Аl2О3 catalyst were observed during for 100 hours of its continuous operation. The catalysts were characterized by BET, SEM, TEM, and TPR methods. The catalysts studied can be considered as a prospective base to develop the effective catalysts for methane conversion into valuable syngas with controllable ratio

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Boleubayev Y.A., … Zhubanysheva G.K.,. (2020). BIMETALLIC Co-Pd CATALYSTS FOR DRY AND BIREFORMING OF METHANE. SERIES CHEMISTRY AND TECHNOLOGY, 4(442), 112–119. https://doi.org/10.32014/2020.2518-1491.72

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