| 摘要 |
PURPOSE: To provide a process for recovery of a sulphonic acid catalyst from an aq. extract of an alkylation effluent stream. CONSTITUTION: A hydrate of a sulphonic acid catalyst is obtained by evaporating an extract. The obtained hydrate is reacted with an olefin contg. hydrocarbon stream to its corresponding sulphonic acid, ester, and, the sulphonic acid ester is introduced to a process for alkylation of a hydrocarbon feedstock with an olefinic alkylation agent under alkylation conditions, thereby the sulphonic acid ester is decomposed to its acid form being catalytic active in the alkylation process, so that it is recovered. |
