Method for separating butenes from C4 hydrocarbon streams, with subsequent oligomerisation

US11964940B2 · kind B2 · utility

Assignee

• Evonik Oxeno GmbH & Co. KG · DE

Inventors

• Philip Lutze · Dinslaken, DE
• Stephan Peitz · Johannesweg, DE
• Armin Matthias Rix · Marl, DE
• Tanita Valèrie Six · Dortmund, DE
• Moritz Schröder · Kohlenbissen, DE
• Niklas Paul · Marl, DE

Key dates

• Filing date: Jan 21, 2022
• Grant date: Apr 23, 2024
• Expiry date: Jan 21, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C11/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for separating butenes from C4 hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent, and a subsequent adiabatic oligomerisation. The method also involves heat integration, which makes it possible to use the heat of the solvent in order to heat and/or at least partly evaporate various streams.