Methanol Synthesis from Blast Furnace Off GAS

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

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Carbon dioxide emission from the blast furnace can be suppressed by the establishment of the blast furnace operation with natural gas injection and methanol synthesis process from the off gas. Natural gas injection leads to the decreasein concentrations of CO and CO2 and to the increase in H2, which are advantageous to the methanol synthesis reaction. Catalysts of Cu-ZnO/Al2O3 system were found active in the methanol synthesis from the off gas, although the composition of a Cu-ZnO/Al2O3 catalyst used in the conventional methanol synthesis industry showed the formation of only a small amount of methanol. The catalysts of Cu-ZnO/Al2O3 system with the higher concentrations of Cu and ZnO were highly active and selective to methanol where the selectivity reached 90%. The reduction temperature of the catalysts exerted remarkable influence on the methanol yield. The Cu-ZnO/Al2O3 catalyst with the optimal composition of Cu, ZnO, and Al2O3 demonstrated excellent stability in the methanol synthesis during a long time run.

Original languageEnglish
Pages (from-to)1144-1149
Number of pages6
JournalIsij International
Volume33
Issue number11
DOIs
Publication statusPublished - 1994

Keywords

  • Cu-Zn0/AlO
  • blast furance
  • carbon dioxide
  • catalyst
  • ironmaking
  • methanol synthesis
  • natural gas

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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