Hydroisomerization of olefins comprising between 4 and 6 carbon atoms

US7432407B2 · kind B2 · utility

Assignee

• OXENO OLEFINCHEMIE GMBH · DE

Inventors

• Andreas Beckmann · Pforzheim, DE
• Armin Matthias Rix · Marl, DE
• Udo Knippenberg · Marl, DE
• Franz Nierlich · Marl, DE
• Wilfried Bueschken · Haltern, DE
• Ralf Duessel · Cohoes, US

Key dates

• Filing date: Sep 20, 2002
• Grant date: Oct 7, 2008
• Expiry date: Apr 11, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2531/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process by which C4- to C6-olefins or an essentially sulfur-free olefin cut comprising C4- to C6-olefins is isomerized over a catalyst comprising an element of the eighth transition group of the Periodic Table, in the presence of at least one added sulfur compound, and any polyunsaturated hydrocarbons contained therein are selectively hydrogenated and hydroisomerized, and also the sulfur compounds are separated from the product and optionally recycled, so that virtually sulfur-free products are obtained.