Method for purifying supply flows containing aromates by means of zeolites

US8536398B2 · kind B2 · utility

Assignee

• Styrolution GmbH · DE

Inventors

• Rolf Henn · Ketsch, DE
• Ulrich Müller · Neustadt, DE
• Ferdinand Straub · Hockenheim, DE
• Jürgen Dosch · Ludwigshafen, DE

Key dates

• Filing date: Sep 15, 2005
• Grant date: Sep 17, 2013
• Expiry date: Nov 30, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2/66
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes suitable for purifying aromatic-containing feed streams, and processes using such purified streams are described, wherein the purification processes comprise: (a) providing a process feedstream comprising an aromatic component; and (b) bringing the process feedstream into contact with a first zeolite and a second zeolite; wherein the first zeolite has a mean pore size of 0.3 to 0.5 nm, and wherein the second zeolite has a mean pore size of 0.6 to 0.8 nm.