A mid/low-temperature solar-driven integrated membrane reactor for the dehydrogenation of propane – A thermodynamic assessment

Solar thermochemical conversion is an effective method for solar energy storage, and propane dehydrogenation one popular technology to generate propylene hydrogen, while the high temperature required in reaction limits its efficiency utilization. In this research, a solar–driven hydrogen permeation membrane reactor system proposed efficiently generating pure mild range, which can decrease heat loss increase rate, thereby converting low–grade thermal into high–grade chemical energy. Using of numerical simulation, thermodynamic, kinetic, environmental performances are analyzed at different temperatures (250–500 °C) H2 permeate pressures (10–5–10–2 bar). The C3H8 C3H6 selectivity, yield achieve 99.2%, 99.1%, 98.3% 400 °C, 10–5 bar with assistance separation. first–law thermodynamic efficiency, solar–to–fuel exergy calculated be 93.1%, 33.6%, 73.4% (400 10–4 bar), respectively. annual standard coal savings carbon dioxide reduction rates 279.8 kg/(m2·year) 685.5 This study demonstrates feasibility collector integrated efficient storage via provides guidance further experimental research.