CATALYST FOR PRODUCTION OF GASEOUS OLEFINS AND METHOD FOR PRODUCTION OF GASEOUS OLEFINS BY ITS USING Russian patent published in 1997 - IPC

FIELD: processing of petroleum, petrochemistry, particularly methods for production of mixture of gaseous hydrocarbons with predomination of olefin hydrocarbons of C₂ - C₄ fraction which may be used for production of corresponding polymers and other products of petrochemistry. SUBSTANCE: proposed catalyst on the base of anhydrous barium chloride comprises, mass %: C₂ - C₄, 67,2; SiO₂, 18.7; Al₂O₃, 0.34; Na₂O, 11.94; ratio of anhydrous barium chloride and aluminosilicate clay being (55-70):(45-30) mass %. Production of gaseous olefins by pyrolysis of benzine in the presence of said catalyst at 700-750 C, volume rate of feeding of raw materials is 0.25-1.0 Fe₂O₃. Mixture of anhydrous barium chloride and aluminosilicate clay of claimed composition is used as said catalyst. EFFECT: increased yield of h^-1-olefins, particularly, ethylene; excluded dilution of raw materials by vapor. 4 cl, 1 tbl