| 摘要 |
<p>Process for the liquid phase alkylation of a process stream of a hydrocarbon substrate and an olefinic alkylating agent in presence of an acid catalyst comprising one or more fluorinated sulphonic acids in at least a first alkylation stage and at least a second alkylation stage connected in series, each reaction stage being carried out in at least a first reactor containing a fixed bed of particulate polar contact material, which process comprises steps of: (a) establishing a reaction zone on the polar contact material arranged in a first reactor of each process stage, the alkylation catalyst being moveable adsorbed on a confined area of the contact material in the reactor; (b) passing a stream of the hydrocarbon substrate and a first stream of the alkylating agent at alkylating conditions in a first flow direction through the first alkylation stage and withdrawing an effluent stream containing alkylated product and unconverted hydrocarbon substrate from the first alkylation stage; (c) adding a second stream of the alkylating agent to the effluent stream from the first alkylation stage and passing the mixed stream at alkylating conditions in a first flow direction through the second alkylation stage, and (d) withdrawing a product stream of alkylated product from the second alkylation stage.</p> |
