科研之友
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摘要
Water gas shift reaction of syngas and subsequent H-2/CO2 separation are key operations for large-scale H-2 production from fossil fuels and agricultural and forestry biomass with CO2 capture. In this study, a tubular zeolite membrane reactor has been demonstrated for the first achievement of nearly complete CO conversion and total H-2 recovery with simultaneous production of a high pressure pure CO2 stream for water gas shift reaction at high temperature and high pressure. When operated at 500 degrees C and 20 bar, the membrane reactor attained CO conversion>99.9% and H-2 recovery>99.9% with a high pressure pure CO2 retentate under practically meaningful gas hourly space velocity of 15,000 h(-1) and steam-to-CO ratio of 3.5. The zeolite membrane reactor with proven long-term stability is promising for further development and practical considerations.
- 出版日期2018-3-1
