Method for the oligomerization of C2 C8-olefins

Details Method for the oligomerization of C2 C8-olefins Method for the oligomerization of C2 C8-olefins

2005-01-25

2005-01-25

Griffin, Walter D. (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C585S311000, C585S312000, C585S314000, C585S315000, C585S531000

Reexamination Certificate

active

06846965

ABSTRACT:
C2-C8-olefins are oligomerized in a process in which a stream of an olefin-containing hydrocarbon mixture is passed over a heterogeneous, nickel-containing oligomerization catalyst in n successive adiabatically operated reaction zones, where n≧2, and the hydrocarbon mixture experiences a temperature increase 66 Treactin each reaction zone and the hydrocarbon mixture enters the first reaction zone at a temperature Tinand before entering each further reaction zone is cooled to a temperature which in each case may be up to 20° C. above or below Tin, and the relative catalyst volumes of the individual reaction zones are such that the difference in ΔTreactbetween any two reaction zones is not more than 20° C.

REFERENCES:
patent: 4891457 (1990-01-01), Owen et al.
patent: 4942021 (1990-07-01), Garwood et al.

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