Formation of methanol and dimethyl ether from a model gas of blast furnace by-product gas

Hirotaka Sato, Atsushi Muramatsu, Tomohiro Akiyama, Jun Ichiro Yagi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

For the purpose of suppressing greenhouse gases emitted from iron-making systems, the synthesis of methanol and dimethyl ether was studied by using mixture of CO, CO2 and H2 gases as a model gas of the blast furnace by-product gas. Since the equilibrium yield of dimethyl ether is estimated to be essentially higher than that of methanol from the blast furnace by-product gases, the objective of this study is to prepare highly active catalysts, based on Cu-ZnO-Al2O3, for direct syntheses of dimethyl ether, as well as methanol. Cu-ZnO-Al2O3 (Cu/ZnO=4/6, Al2O3=14.3% in molar basis) catalyst exhibited the highest activity in the synthesis of dimethyl ether among catalysts tested. From the XPS analysis on the surface of the catalyst, the surface Al2O3 content Cu-ZnO-Al2O3 (Cu/ZnO=4/6, Al2O3=14.3% in molar basis) was remarkably higher than the Cu-ZnO-Al2O3 (Cu/ZnO=3/7, Al2O3=14.3% in the molar basis). The enhancement of the activity by the increase in Cu content may be attributed to the enrichment of Al2O3 species on the surface, Because Al2O3 was known to be active in the formation of dimethyl ether from methanol.

Original languageEnglish
Pages (from-to)431-432
Number of pages2
JournalSekiyu Gakkaishi (Journal of the Japan Petroleum Institute)
Volume40
Issue number5
DOIs
Publication statusPublished - 1997

Keywords

  • Carbon dioxide
  • Catalyst
  • Dimethyl ether synthesis
  • Ironmaking system
  • Methanol synthesis

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

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