Catalytic Synthesis of ?2-?4-Alkenes from Dimethyl Ether

In the study, effect of volumetric velocity initial gaseous mixture on catalytic properties Zn-Zr-Cu/HSZ/Al$_2$O$_3$ in conversion dimethyl ether to olefins was studied. When rate is increased by 5 times, decreases from 96.5 40.7 %, total selectivity for C$_2$=-C$_4$=olefins 59.0 75.5 mas.%, at same time, yield by-products reaction - C$_2$ + paraffin reduced. A decrease temperature equal leads an increase both ethylene and propylene due a formation methane C$_2$+paraffin products. Thus, copper-containing zeolite catalysts, lower than provide higher raw material olefin (up 90 mas. %.). Also, changing composition regime parameters allows significant change ratio each other.