| abstract |
Process for the oligomerization of C¶2¶-C¶8¶ olefins, in which a stream of an olefin-containing hydrocarbon mixture is passed in succession in n successive adiabatically operated reaction zones over a heterogeneous, nickel-containing oligomerization catalyst, with n> = 2, the hydrocarbon mixture in each reaction zone experiences a temperature increase DELTAt¶Reakt¶ and the hydrocarbon mixture enters the first reaction zone with a temperature T¶ein¶ and is cooled to a temperature before entering each further reaction zone, the T¶ein¶ by up to 20 ° C. in each case can exceed or fall below, and the relative catalyst volumes of the individual reaction zones are such that when comparing two reaction zones, the difference between DELTAT¶react¶ is at most 20 ° C. |