Impact of Thickness of Pd/Cu Membrane on Performance of Biogas Dry Reforming Membrane Reactor Utilizing Ni/Cr Catalyst

Akira Nishimura; Syogo Ito; Mizuki Ichikawa; Mohan Lal Kolhe

doi:10.20944/preprints202406.0847.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 12 June 2024 / Approved: 12 June 2024 / Online: 13 June 2024 (00:01:31 CEST)

This study focuses on a biogas dry reforming to produce H2. Biogas contains CO2 of 40 vol% approximately, indicating that the efficiency of the power generation is reduced because of the smaller heating value compared with a natural gas. The authors have proposed the combination system consisting of biogas dry reforming reactor and solid oxide fuel cell (SOFC). Since a biogas dry reforming is an endothermic reaction, this study adopts a membrane reactor which can be operated by causing the non-equilibrium state with H2 separation from the reaction space. This study aims to clarify the impact of thickness of Pd/Cu membrane on the characteristics of the biogas dry reforming membrane reactor using Pd/Cu membrane and Ni/Cr catalyst. The impact of the operation temperature, the molar ratio of CH4:CO2 and the differential pressure between the reaction chamber and the sweep chamber on the characteristics of the biogas dry reforming membrane reactor using Pd/Cu membrane and Ni/Cr catalyst is examined changing the thickness of Pd/Cu membrane. As a result, the highest concentration of H2 is 122711 ppmV which is obtained in case of CH4:CO2 =1:1 at the reaction temperature of 600 ℃ and the differential pressure of 0 MPa using the Pd/Cu membrane whose thickness of 40 m.

Biogas dry reforming; Ni/Cr catalyst; Thickness of Pd/Cu membrane; Optimum experimental condition

Engineering, Energy and Fuel Technology

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Impact of Thickness of Pd/Cu Membrane on Performance of Biogas Dry Reforming Membrane Reactor Utilizing Ni/Cr Catalyst

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