CATALYST FOR CONVERSION OF METHANOL INTO OLEFIN HYDROCARBONS, PROCESS OF PREPARATION THEREOF, AND A PROCESS OF CONVERSION OF METHANOL INTO OLEFIN HYDROCARBONS Russian patent published in 2007 - IPC B01J29/40 C07C1/20 B01J37/02 B01J37/04 

FIELD: petrochemical processes.

SUBSTANCE: catalyst, containing high-silica zeolite of the H-ZSM-5 type having silica modulus SiO₂/Al₂O₃ = 20 to 160 in amount 60.0-90.0%, contains (i) as modifying component at least one oxide of element selected from group: boron, phosphorus, magnesium, calcium, or combination thereof in amount 0.1-10.0 wt %; and (ii) binding agent: alumina. Catalyst is formed in the course of mechanochemical and high-temperature treatments. Described is also a catalyst preparation process comprising impregnation of decationized high-silica zeolite with compounds of modifying elements, dry mixing with binder (aluminum compound), followed by mechanochemical treatment of catalyst paste, shaping, drying, and h-temperature calcination. Conversion of methanol into olefin hydrocarbons is carried out in presence of above-defined catalyst at 300-550°C, methanol supply space velocity 1.0-5.0 h^-1, and pressure 0.1-1.5 mPa.

EFFECT: increased yield of olefin hydrocarbons.

3 cl, 1 tbl, 15 ex