OXIDATIVE COUPLING OF METHANE TO ETHYLENE OVER PEROVSKITE CATALYSTS

In iran and the other petroleum and gas enriching countries . A considerable amount of gas is combusted wastefully without using them profitably . Now a day while the world petroleum resources are diminishing incrasingly instead nes sources of gas are explored at a large amoun.therefore it is valuable commit investigation on gas conversion to the value-added product such as ethylene which is the most important raw material in petrochemical industry . the results from reactor tests shoewed that perovskite-type catalysts , can be used in this reation. for example , by varying the parameteresof the reactor their crystalline structures remain unchanged. in this paper the variation of temperature, flow rate, inert gas composition in feed and CH4/O2 have been studied for this reaction, and finally, the best catalyst have been selected among the prepared catalyst with perovskite structures.