Studies on the synthesis of higher alcohol over modified Cu/ZnO/Al2O3 catalyst

Ji In Park, Jae Sun Jung, Young Su Noh, Kwan Young Lee, Dong Ju Moon

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Higher alcohol has been considered as a potential fuel additive. Higher alcohol, including C2–C4 alcohol was synthesized by catalytic conversion of syngas (with a ratio of CO/H2 = 1) derived from natural gas over modified Cu/ZnO/Al2O3 catalyst. Modified Cu/ZnO/Al2O3 catalysts promoted by alkali metal (Li) for higher alcohol synthesis (HAS) were prepared at different pH (6, 6.5, 7, 8, and 9) by co-precipitation to control Cu surface area and characterized by N2 physisorption, XRD, SEM, H2-TPR and TPD. The HAS reaction was carried out under a pressure of 45 bar, GHSV of 4000 h−1, ratio of H2/CO = 1, and temperature ranges of 240 and 280 °C. It was found that the malachite phase of copper causes the size of copper to be small, which is suitable for methanol synthesis. Methanol and HAS share a common catalytic active site and intermediate. It was also found that the productivity to higher alcohol was correlated with Cu surface area.

Original languageEnglish
Pages (from-to)3813-3822
Number of pages10
JournalResearch on Chemical Intermediates
Volume44
Issue number6
DOIs
Publication statusPublished - 2018 Jun 1

Bibliographical note

Funding Information:
Acknowledgements This work was supported and funded by the Korea Institute of Science and Technology (Project No. 2E26570) and by Ministry of Trade, Industry and Energy, Republic of Korea (Project No. 20142010102790).

Publisher Copyright:
© 2018, Springer Science+Business Media B.V., part of Springer Nature.

Keywords

  • Co insertion
  • Cu surface area
  • Higher alcohol productivity
  • Malachite phase

ASJC Scopus subject areas

  • General Chemistry

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