Method for producing acetylenes and syngas

US9580312B2 · 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
• Kai Rainer Ehrhardt · Speyer, DE
• Horst Neuhauser · Dudenhofen, DE
• Michael L. Hayes · Gonzales, US

Key dates

• Filing date: Jan 15, 2014
• Grant date: Feb 28, 2017
• Expiry date: Jan 15, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2203/148
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a continuous method for producing acetylenes and syngas by partially oxidizing hydrocarbons with oxygen. A first feed stream (1) containing one or more hydrocarbons and a second feed stream (2) containing oxygen are —mixed in a ratio of the mass flows of the second feed stream (2) to the first feed stream (1) corresponding to an oxygen number of less than or equal to 0.31, said streams being heated separately from each other, —and fed to a combustion chamber (FR) via a burner block (BR), the partial oxidation of the hydrocarbons being carried out in said combustion chamber, —thereby obtaining a first cracked gas stream Ig. The invention is characterized in that —the first cracked gas stream Ig is precooled to a temperature ranging from 100 to 1000° C. in a prequench region (H), thereby obtaining a second cracked gas stream IIg, —50 to 90% of the solids contained in the second cracked gas stream IIg are separated therefrom in a solid-gas separating device (A), thereby obtaining a solid stream If and a third cracked gas stream IIIg, —the third cracked gas stream IIIg is cooled to 80 to 90° C. by injecting water in a total quench region (B), thereby obtaining …