Method for production of acetylene

US4378232A · kind A · utility

Assignee

• Bergwerksverband GmbH · DE

Inventors

• Cornelius Peuckert · Dinslaken, DE
• Herbert Baumann · Uppsala, SE
• Dirk Bittner · Essen, DE
• Jurgen Klein · Essen, DE
• Harald Juntgen · Essen, DE

Key dates

• Filing date: Dec 18, 1980
• Grant date: Mar 29, 1983
• Expiry date: Dec 18, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C1/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for the production of acetylene from coal and hydrogen is provided by electric arc heating. The coal has a content of volatile components (i.waf) from about 25 to 44 percent and a content of organic oxygen (i.waf) of less than 9 percent and is ground to a diameter of less than 0.5 mm. The coal is then separated into two to four grain size fractions and one of the grain size fractions is loaded on a hydrogen containing gas. The gas carrying the coal is heated by way of an electric arc with an energy of from about 5 to 20 kJ/l (in normal state). The ratio of electric power employed to coal stream is from about 4,000 to 40,000 kJ/kg coal. The coal is heated for a time duration about inversely proportional to the third root of the specific outer surface of the coal gain fraction. The resulting product gas is quenched with cold liquid hydrocarbons, with hydrogen or water. Acetylene yields of up to about 0.41 kg acetylene per kg coal can be obtained.