Preparation of Catalyst Cu-ZnO-MgO-Al2O3 for Direct Synthesis of DME. (June 2019)

• Record Type: Journal Article
• Authors: Swastika, T; Ardy, A; Susanto, H
• Is Part Of: IOP conference series. Volume 543(2019)
• Publication Date: 2019-06
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/543/1/012063
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Direct synthesis of DME catalyst was prepared using the co-precipitation method. The catalyst contained CuO/ZnO/Al2 O3 about 40/27/33 (%-wt). Two types of catalyst were prepared, i.e. CZMA0 (Mg 0%-wt) and CZMA20 (Mg 20%-wt). Both of catalysts were activated using reducing gas (5% H2 and N2 ). The activity test was conducted by syngas model which contained (%-mole) 65% H2, 28% CO and 7% N2 . The reaction was carried out in a fixed bed reactor at 5 bar, and temperature of 240, 250 and 260°C. Synthesis shown CZMA20 catalyst gave the highest catalytic activity with 73% of CO conversion and 66% of H2 conversion (5 bar and 260°C). Direct synthesis of DME was also carried out using a dual-catalyst, i.e. catalyst for methanol synthesis (M151, the commercial catalyst of methanol synthesis) and methanol dehydration (γ-Al2 O3 -ITB). The activity of dual catalyst shown 93% of CO conversion and 91% of H2 conversion. This activity was more stable than two other catalysts (CZMA0 and CZMA20).