光热驱动的膜分离生物甲烷制氢过程建模与仿真分析

Solar-driven methane reforming for hydrogen production is one of the main technological pathways for solar fuels. The introduction of concentrating heat collection technology can realize the full spectrum utilization of solar energy, effectively improve the conversion efficiency of solar energy to fuel chemical energy, and significantly reduce system energy consumption. In this study, a novel design for solar-driven membrane reactor was proposed for hydrogen production by combining porous silicon carbide absorber and La_1-xSr_xCo_1-yFe_yO_3-δ perovskite oxygen permeable membrane. The conceptual design of the reaction process was made, and a numerical model considering radiation heat transfer membrane separation reaction was established and simulated. The temperature uniformity of the membrane surface was evaluated, and the influence of temperature on the membrane reaction and outlet products was analyzed. The results demonstrate that this model can effectively and accurately describe the conceptual design process. The findings provide a theoretical basis and initial design approach for the design and scale-up of solar-driven high-temperature membrane reactors.