Accession Number : AD0653539

Title :   SYNTHESIS OF ACETYLENE IN A PLASMA JET,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Mints,S. ; Shimanski,A. ; Varykha,S.

Report Date : 22 MAR 1967

Pagination or Media Count : 13

Abstract : The invention and practical use of a new type of electric discharge - the vortex gas stabilized arc discharge - have opened a new approach to the study of several chemical endothermic processes, one of which is synthesis of acetylene from methane in an argon plasma jet. The acetylene content in effluent gases reaches 12%, which indicates that in case of reduction of energy consumption per 1 cu m (NTP) this technique may successfully compete with other methods of acetylene production. The study was conducted to determine the best conditions of conversion of methane into acetylene in an argon plasma jet. A plasma jet equipped with a tungsten cathode and copper anode (nozzle) was investigated. Methane was introduced just below the anode or directly into the nozzle. The post-reaction mixture was cooled in a water cooler attached directly to the anode. Results of investigations indicated that for power input between 6 and 10 kw and at constant argon flow the best effeciency is obtained for methane content from 20 to 35%. For these conditions the power yield of 22 kw-hr/cu m (NTP) of acetylene was obtained. The conversion of methane to acetylene was then between 50 and 80%. Influence of method and place of methane feeding and cooling arrangement on efficiency of the process was observed. (Author)

Descriptors :   (*ALKYNES, SYNTHESIS(CHEMISTRY)), (*PLASMA JETS, ARGON), METHANE, GAS DISCHARGES, EFFICIENCY, THERMOCHEMISTRY, USSR

Subject Categories : Industrial Chemistry and Chemical Processing
      Physical Chemistry
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE