BIMETALLIC Co-Pd CATALYSTS FOR DRY AND BIREFORMING OF METHANE

Авторы

  • Boleubayev Y.A.
  • Xiao T.
  • Itkulova S.S.
  • Valishevckiy K.A.
  • Zhubanysheva G.K.

Ключевые слова:

Dry Reforming of Methane, Bireforming of Methane, Syngas, Bimetallic Co-Pd supported catalysts.

Аннотация

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 = 700о
С, 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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Опубликован

2020-09-06

Как цитировать

Boleubayev Y.A., Xiao T., Itkulova S.S., Valishevckiy K.A., & Zhubanysheva G.K. (2020). BIMETALLIC Co-Pd CATALYSTS FOR DRY AND BIREFORMING OF METHANE. Известия НАН РК. Серия химических наук, (4), 112–119. извлечено от https://journals.nauka-nanrk.kz/chemistry-technology/article/view/498