CATALYST FOR PREPARING ETHYLENE, METHOD OF PREPARING CATALYST FOR PREPARATION OF ETHYLENE, AND METHOD OF PREPARING ETHYLENE Russian patent published in 1998 - IPC

FIELD: chemical industry. SUBSTANCE: present invention describes catalysts on substrate applied onto inorganic carriers of formula I for preparation of ethylene by conversion of methane or purified natural gas, and preparation thereof, and method of preparing ethylene by direct conversion of methane or purified natural gas using said catalysts Ma′Pc/S of formula I wherein M is compound selected from RuCl₂(PPh₃)₃, and is inorganic carrier selected from α-Al₂O₃, γ-Al₂O₃, SiO₂, SiO₂-Al₂O₃,, Y is zeolite, MgO and TiO₂,, P is phosphorus compound as promoter selected from PPh₃, P(OCH₃)₃, P(OC₂H₅)₃, P(O)(OC₂H₅)₃,, and a′ denotes weight percentage of metal in catalyst varying from 0.25 to 5 wt % and C denotes weight percentage of promoter in catalyst varying from 1.0 to 20.0 wt %. Catalyst simplify method of preparing ethylene and increase the yield thereof. EFFECT: more efficient preparation method. 8 cl, 22 ex, 11 tbl