DME (Dimethyl Ether) catalyst-Other Catalysts-

DME (Dimethyl Ether) catalyst

DME (Dimethyl Ether) catalyst, supported by γ-Al₂O₃, is synthesized with the incorporation of a precisely-determined amount of heteropoly acid and promoter. This meticulous formulation significantly elevates its catalytic activity, selectivity, and thermal resistance, rendering it an optimal choice for industrial - scale dimethyl ether production.

PRODUCT DESCRIPTION

Physicochemical Properties

Property	Specification
Appearance	White or light yellow extrudates
Chemical Composition	Predominantly Al₂O₃
Dimensions	Diameter: 3 - 4 mm; Length: 3 - 20 mm
Bulk Density	0.45-0.50 kg/l
Specific Surface Area	≥ 250 m²/g
Average Radial Crushing Strength	≥ 80 N/cm
Abrasion Rate	≤ 5%

Performance Indicators

Indicator	Value
Conversion Rate	≥ 82%
Ether Selectivity	≥ 99.5%

Process Parameters

Parameter	Range
Temperature	240°C - 400°C
Pressure	0.1 - 1.2 MPa
Liquid Hourly Space Velocity (LHSV)	1 - 2 h⁻¹

Application Scope

Specifically engineered for the gas-phase dehydration process to yield dimethyl ether, the DME catalyst demonstrates remarkable versatility. It can effectively utilize both refined and crude feedstocks (derived from synthesis processes without product distillation separation), providing flexibility and cost-effectiveness in the manufacturing process. Extensive industrial applications have affirmed its outstanding performance, characterized by high activity, superior selectivity, low bulk density, broad temperature adaptability, excellent thermal stability, and an extended service life.

Shandong Dengzhuo Chemical Co.,Ltd