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2001•Chinese Journal of ChemistryRequires access

Catalysis for One‐step Synthesis of Dimethyl Ether from Hydrogenation of CO

Xiaoming Zheng, Jinhua Fei, Zhaoyin Hou

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Abstract

Abstract In this paper, a new catalyst system Cu‐Mn‐(M)/γ‐Al2O3 was developed for the directly synthesis dimethyl ether (DME) from synthesis gas in a fixed‐bed reactor. The catalysts with different n (Cu) : n (Mn) ratios, several promoter M (M is one of Zn, Cr, W, Mo, Fe, Co or Ni) were prepared and tested. The results showed the catalysts have a high conversion of CO and a high DME selectivity. The DME yield in tail gas reached 46.0% (at 63.27% conversion of CO) at 2.0 MPa, 275°C, 1500 h−1 with the Cu2Mn4Zn/γ‐Al2O3 catalyst.

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What this paper is about

Abstract In this paper, a new catalyst system Cu‐Mn‐(M)/γ‐Al2O3 was developed for the directly synthesis dimethyl ether (DME) from synthesis gas in a fixed‐bed reactor. The catalysts with different n (Cu) : n (Mn) ratios, several promoter M (M is one of Zn, Cr, W, Mo, Fe, Co or Ni) were prepared and tested. The results showed the catalysts have a high conversion of CO and a high DME selectivity. The DME yield in tail gas reached 46.0% (at 63.27% conversion of CO) at 2.0 MPa, 275°C, 1500 h−1 with the Cu2Mn4Zn/γ‐Al2O3 catalyst.

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Available abstract

Abstract In this paper, a new catalyst system Cu‐Mn‐(M)/γ‐Al2O3 was developed for the directly synthesis dimethyl ether (DME) from synthesis gas in a fixed‐bed reactor. The catalysts with different n (Cu) : n (Mn) ratios, several promoter M (M is one of Zn, Cr, W, Mo, Fe, Co or Ni) were prepared and tested. The results showed the catalysts have a high conversion of CO and a high DME selectivity. The DME yield in tail gas reached 46.0% (at 63.27% conversion of CO) at 2.0 MPa, 275°C, 1500 h−1 with the Cu2Mn4Zn/γ‐Al2O3 catalyst.

Key concepts: Dimethyl ether, Chemistry, Catalysis, Yield (engineering), Selectivity, Ether, Nuclear chemistry, Inorganic chemistry

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