| 摘要 |
The invention relates to a process for preparing one or more reaction products by means of a molecular weight-increasing reaction, in which compound of higher molecular weight is formed at least partly from the low molecular weight compounds in a synthesis gas, having the steps of: providing a synthesis gas stream (4) comprising CO and H2, introducing the synthesis gas stream (4) into reactor (104) and conducting the molecular weight-increasing reaction in the reactor (104), wherein a product stream (5) comprising compounds of higher molecular weight, CO2, CH3OH, CO and H2 is produced, separating the product stream (5) in a separation device (105) into a first stream (8) comprising the compounds of higher molecular weight, and into a second stream (6) comprising CO2,CO, H2 and especially CH4. According to the invention, at least CO2 is separated from the second stream (6) in a temperature swing adsorption device (103) downstream of the separation unit (105) by means of temperature swing adsorption, wherein, in the temperature swing adsorption, the CO2 is adsorbed on an adsorbent and the CO2-laden adsorbent is regenerated by heating the adsorbent, wherein CO2 is desorbed, and wherein the laden adsorbent is heated by at least partly indirectly transferring heat from a fluid heat carrier medium to the adsorbent. |
