Acetaldehyde Production from Ethanol by Eco-Friendly Non-Chromium Catalysts Consisting of Copper and Calcium Silicate

Atsushi Segawa, Akio Nakashima, Ryoichi Nojima, Naohiro Yoshida, Masaki Okamoto

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The authors developed eco-friendly non-chromium catalysts for acetaldehyde production through bioethanol dehydrogenation, consisting of copper and calcium silicate. Acetaldehyde selectivity was higher over copper calcium silicate catalysts with a CuO content of 40 wt % or more, because the number of acid sites on the calcium silicate was reduced, which helped prevent formation of byproducts. It was found that high ethanol conversion (39%-57%) and high acetaldehyde selectivity (91%-95%) could be achieved simultaneously at high temperature and high weight hourly space velocity conditions. Furthermore, it was shown that stable acetaldehyde production could be maintained over 20 h of time-on-stream. These catalysts were prepared from commercially available precursors and could be used in place of conventional copper chromite catalysts.

Original languageEnglish
Pages (from-to)11852-11857
Number of pages6
JournalIndustrial and Engineering Chemistry Research
Volume57
Issue number35
DOIs
Publication statusPublished - 2018 Sep 5
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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