| 摘要 |
In order to produce methanol from a syngas containing hydrogen and carbon oxides, the syngas is conducted through a first, preferably water-cooled reactor in which some of the carbon oxides are catalytically reacted to obtain methanol, and the obtained mixture containing syngas and methanol vapor is fed to a second, preferably gas-cooled reactor in which some more of the carbon oxides are reacted to obtain methanol. The mixture withdrawn from the first reactor is conducted through a gas/gas heat exchanger, in which the mixture is cooled to a temperature lying below the dew point of the mixture. Methanol is then separated from the gas stream and withdrawn in a methanol separator, while the remaining gas stream is fed to the second reactor. |
