Catalyst and process for removing mercaptans from hydrocarbon streams

US11186782B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Stephan Peitz · Johannesweg, DE
• Helene Reeker · Dortmund, DE
• Reiner Bukohl · Marl, DE
• Thomas Quandt · Marl, DE
• Stefan Röder · Koblenzer Straße, DE
• Armin Matthias Rix · Marl, DE
• Andreas Wolff · Munich, DE
• Guido Stochniol · Haltern am See, DE

Key dates

• Filing date: Dec 20, 2019
• Grant date: Nov 30, 2021
• Expiry date: Feb 26, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/202
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a catalyst for a process for removing mercaptans and optionally disulfides (if present) from hydrocarbon streams, in particular C4 streams, in the presence of higher dienes, in particular C5 dienes. At the same time, the invention also relates to a process for removing mercaptans and disulfides (if present) from hydrocarbon streams, in particular C4 streams, in one embodiment in the presence of 1-butene, by thioetherification of the mercaptans with polyunsaturated hydrocarbons, wherein the process is carried out in a reactor with addition of hydrogen in the presence of higher dienes, in particular C5 dienes.