Reaction phenomena of high-temperature water gas shift reaction in a membrane reactor

摘要: Abstract The membrane reactor is a promising device to produce pure hydrogen and enrich CO 2 from syngas. To figure out the detailed reaction phenomena of high-temperature water gas shift (WGSR) in Pd-based reactor, computational fluid dynamics (CFD) model developed simulate chemical where feed temperature steam-to-CO molar ratio (S/C ratio) are ranges 400–700 °C 1–3, respectively. predictions suggest that WGSR proceeds kinetically controlled thermodynamically governed one when increases. conversion at high temperatures can be improved up 83% compared without membrane. This mainly attributed intensification membrane’s permeance with increasing temperature, even though disadvantage conversion. analysis also reveals breakthrough thermodynamic limit achieved higher than 500 °C. equilibrium 61%.