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- W1987506126 abstract "Activities and durabilities of CuO-ZnO-Al2O3 catalysts for methanol synthesis from H2, CO2 and CO were measured in the once-through reaction test using a microreactor. Catalysts of different compositions were prepared by the precipitation method. Activity tests were conducted under the following conditions: temperatures, 210, 230, 250°C; pressures, 40, 80 kgf/cmG; GHSV, 6000 h−1; feed gas composition, H2/CO2/CO=77/17/6 (mole%). The result at 250°C, 40kgf/cmG showed that the rates of CO2 and CO conversion into CH3 OH were 22–24 % and these values were roughly equal to the equilibrium value (25%). Durability tests at 230°C, 40kgf/cmG found that these catalysts were roughly the same in initial activity for methanol synthesis but considerably different in durability. Additional durability test has been made on the catalyst selected on the basis of the microreactor tests results by recycling unreacted gases, using a bench-scale test plant. The recycling test with this catalyst, conducted for 1000 hours, showed that more than 90% of supplied CO2 were converted into CH3 OH under the following conditions: temperature, 240°C; pressure, 80kgf/cmG; make-up gas composition, H2/CO2=75/25; GHSV, 5000h−1; recycle ratio, 4 Nl/Nl." @default.
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- W1987506126 date "1995-06-01" @default.
- W1987506126 modified "2023-10-18" @default.
- W1987506126 title "Methanol synthesis from carbon dioxide on CuO-ZnO-A2O3 catalysts" @default.
- W1987506126 doi "https://doi.org/10.1016/0196-8904(95)00073-m" @default.
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