Method for the oligomerization of C2 C8-olefins

US6846965B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Ralf Schulz · Speyer, DE
• Marc Walter · Bischofswerda, DE
• Hans-Peter Neumann · Ludwigshafen, DE
• Wolfgang Brox · Heidelberg, DE

Key dates

• Filing date: May 11, 2000
• Grant date: Jan 25, 2005
• Expiry date: May 11, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

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 Treact in each reaction zone and the hydrocarbon mixture enters the first reaction zone at a temperature Tin and 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 ΔTreact between any two reaction zones is not more than 20° C.