| 摘要 |
A process for the production of a mixture of alkylbenzenes in the presence of an aromatic feedstock and an olefinic stream produced from an ethylene feedstock is described, with said process comprising at least: a) A first stage for oligomerization of said ethylene feedstock that consists of at least one hydrocarbon effluent that comprises a mixture of olefins having a number of carbon atoms that is for the most part between 4 and 30, whereby said mixture of olefins comprises a C10-C24 olefinic fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system, b) A second stage for oligomerization of the effluent that is obtained from said stage a) that consists of at least one hydrocarbon effluent that comprises a mixture of olefins having a number of carbon atoms that is for the most part between 4 and 30, whereby said mixture of olefins comprises a C10-C24 olefinic fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system that is identical to or different from the one that is used in said stage a), c) A stage for fractionation of the effluent that is obtained from said oligomerization stage b) in such a way as to recover at least one olefin-enriched olefinic stream having a number of carbon atoms that is greater than or equal to 9, d) A stage for alkylation of said olefinic stream by an aromatic feedstock. |
