Process for preparing acetylene and synthesis gas

US9290384B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Maximilian Vicari · Schifferstadt, DE
• Christian Weichert · Bad Dürkheim, DE
• Dirk Grossschmidt · Mannheim, DE
• Michael B. Russ · Elmhurst, US
• Mirko Haider · Ludwigshafen am Rhein, DE
• Horst Neuhauser · Dudenhofen, DE
• Michael L. Hayes · Gonzales, US

Key dates

• Filing date: May 24, 2013
• Grant date: Mar 22, 2016
• Expiry date: Oct 22, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2203/0255
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, is disclosed. The process consists of separately preheating and then mixing a first input stream containing a hydrocarbon and a second input stream containing oxygen, supplying the first input stream and the second input stream via a burner block to a firing space, quenching a cracking gas obtained to produce a process water stream and a product gas stream, cooling the product gas stream in a cooling column by direct heat exchange with cooling water, depleting soot in an electrostatic filter, combining all process water streams and passing through soot channels, subjecting the combined process water stream to a cleaning operation by partial vaporization in a one-stage flash vessel to obtain a cleaned process water stream, and recycling the cleaned process water stream into the process.