Dehydrogenation Coupling of Methane Using Catalyst-Loaded Proton-Conducting Perovskite Hollow Fiber Membranes
Jian Song,
Yuepeng Hei,
Claudia Li,
Naitao Yang,
Bo Meng,
Xiaoyao Tan,
Jaka Sunarso,
Shaomin Liu
Affiliations
Jian Song
Department of Chemical Engineering, Shandong University of Technology, Zibo 255049, China
Yuepeng Hei
Department of Chemical Engineering, Shandong University of Technology, Zibo 255049, China
Claudia Li
Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia
Naitao Yang
Department of Chemical Engineering, Shandong University of Technology, Zibo 255049, China
Bo Meng
Department of Chemical Engineering, Shandong University of Technology, Zibo 255049, China
Xiaoyao Tan
State Key Laboratory of Separation Membranes and Membrane Processes, Department of Chemical Engineering, Tiangong University, Tianjin 300387, China
Jaka Sunarso
Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia
Shaomin Liu
College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Catalytic dehydrogenation coupling of methane (DCM) represents an effective way to convert natural gas to more useful C2 products (C2H6, C2H4). In this work, BaCe0.85Tb0.05Co0.1O3-δ (BCTCo) perovskite hollow fiber membranes were fabricated by the combined phase inversion and sintering method. SrCe0.95Yb0.05O3-δ (SCYb) perovskite oxide was loaded as a catalyst onto the inner hollow fiber membrane surface, which promoted the CH4 conversion and the C2 hydrocarbon selectivity during the DCM reaction. The introduction of steam into the methane feed gas mixture elevated the C2 selectivity and yield due to the alleviation of coke deposition. Switching N2 to air as the sweep gas further increased the C2 selectivity and yield. However, the conversion of methane was limited by both the low permeability of the membrane and the insufficient catalytic activity of the catalyst, leading to low C2 yield.
