Process for the production of acetylene and synthesis or...

Details Process for the production of acetylene and synthesis or... Process for the production of acetylene and synthesis or...

C - Chemistry, Metallurgy

10

B

48/37, 204/96.29

C10B 57/00 (2006.01) B01J 19/08 (2006.01) C07C 1/00 (2006.01) C10J 3/00 (2006.01) C10J 3/46 (2006.01)

Patent

CA 1218957

23443-278 ABSTRACT OF THE DISCLOSURE For the manufacture of acetylene and synthesis or reduction gas from coal by means of an electric arc or plasma process, powdered coal is pyrolised in an electric arc reactor with an energy density of 1 to 5 kWh/Nm3, a residence period of 0.5 to 10 msec and temperatures of at least 1500°C such that the gaseous compounds derived from the coal do not exceed 1.8 times the so- called volatile content of the coal. The coke remaining after quenching is then fed to a second electric arc reactor in which the coke by means of a gasifying medium and heating by means of an electric arc or plasma process is converted into synthesis or reduction gas during a residence period of 1 to 15 sec and a temperature of at least 800°C. The gas flow from the pyrolysis zone is cleaned and acetylene is recovered therefrom by selective sol- vents. The gas from the cleaning stage is similarly cooled and cleaned. Use of the process permits a saving of about 50% of direct fossil energy requirements whilst achieving gasification of the coal.

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