Process for removing polyunsaturated hydrocarbons from C4 hydrocarbon streams in the presence of mercaptans, disulfides and C5 hydrocarbons

US11952340B2 · kind B2 · utility

Assignee

• Evonik Oxeno GmbH & Co. KG · DE

Inventors

• Stephan Peitz · Johannesweg, DE
• Guido Stochniol · Haltern am See, DE
• Markus Winterberg · Waltrop, DE
• Jörg Schallenberg · Dorsten, DE
• Armin Matthias Rix · Marl, DE
• Andreas Wolff · Munich, DE

Key dates

• Filing date: Dec 13, 2019
• Grant date: Apr 9, 2024
• Expiry date: Jan 27, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2523/44
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides a two-stage process for removing polyunsaturated hydrocarbons from C4 hydrocarbon streams that, in addition to C4 hydrocarbons, also contain C5 hydrocarbons and mercaptans and/or disulfides.