| 摘要 |
The invention provides a process for conducting chemical equilibrium reactions involving gaseous reactants which yield a liquid product using a plurality of fluidised bed catalytic reactors in series and an inert solvent to absorb the reaction product from the reaction mixture. Between at least two consecutive fluidized bed reactors, R1, R2, R3, there are means S1, S2, S3 effecting intimate contact between the inert solvent and the product-containing reaction mixture, which also comprises a means effecting a separation of a liquid reaction product/inert solvent solution and a gaseous phase which passes to the next fluidised bed reactor. Preferably this is a swirl tube. Preferably the process is used to prepare methanol by reaction of a gaseous mixture comprising hydrogen and carbon monoxide. The inert solvent employed may be e.g. water, a higher alcohol, a higher ether or a higher ester. The catalyst composition in the bed may comprise the elements copper and zinc and is optionally promoted with another element. The operating conditions of the reactors are within the temperature range of 100 to 350 DEG C and the pressure within the range from 3 to 35 MPa. The invention also provides an apparatus suitable for carrying out the above process. <IMAGE> |
