PEROVSKITE-BASED CATALYST, ITS PREPARATION AND ITS USE FOR CONVERSION OF METHANE TO ETHYLENE
A method of producing a perovskite catalyst comprising: forming an aqueous slurry comprising an alkaline earth metal salt, a powdered metal salt and a powdered transition metal oxide; the aqueous slurry being formed by: dispersing a powdered alkaline earth metal salt in water, the alkaline earth metal salt being selected from the group consisting of barium, calcium and strontium salts adding the powdered metal salt to the water; and adding the powdered transition metal oxide to the water, the metal oxide being titanium oxide; and adding a polymeric binder to the slurry to form a paste; drying the paste for forming a powder; heating the powder at increasing temperatures at a predetermined profile commensurate with the polymeric binder; and calcining the heated powder to form the perovskite catalyst. The catalyst thus formed and the use thereof for oxidative coupling of methane is also disclosed.