CATALYTICALLY ACTIVE BODY FOR SYNTHESIS OF SIMPLE DIMETHYL ETHER FROM SYNTHESIS GAS

摘要

FIELD: chemistry.;SUBSTANCE: describes a catalytically active body for synthesis of dimethyl ether from synthesis gas, consisting of: (A) 70-90% by weight of a methanolate component selected from the group consisting of copper oxide, alumina, zinc oxide, amorphous alumina, Ternary oxide or mixtures thereof, (B) 10-30% by weight of an acid component selected from the group consisting of an aluminosilicate, γ-alumina and zeolite or mixtures thereof, the sum of the components (A) and (B) being generally 100% by weight, and wherein component (A) has a particle size distribution characterized by a D-10 of 5-140 mcm, A D-50 value of 40-300 mcm and a D-90 value of 180-800 mcm, wherein the component (B) has a particle size distribution characterized by a D-10 value of 5-140 mcm, a D-50 value, Equal to 40-300 mcm, and a D-90 value of 180-800 mcm, and particle size distribution of the components (A) and (B) is maintained in the catalytically active body. The process of preparing catalytically active body is disclosed, it comprises the step of: a) preparing a physical mixture comprising the above components (A) and (B). Also a process for preparing dimethyl ether from synthesis gas is disclosed; it comprises at least the following steps: f) reducing mentioned catalytically active body, g) contacting catalytically active body in the form of reduced with hydrogen and at least one of carbon monoxide or carbon dioxide. Exemplified catalytically active body is applied to produce dimethyl ether.;EFFECT: obtaining a catalytically active body, which features the ability to convert CO synthesis gas selectively to dimethyl ether and CO₂, whereby the yield of dimethyl ether increases.;12 cl, 2 tbl, 3 ex