Catalytic dehydrofluorination of 1,1,1,2,3-pentafluoropropane (HFC-245eb) to 2,3,3,3-tetrafluoropropene (HFO-1234yf) using in-situ fluorinated chromium oxyfluoride catalyst

Seoyeon Lim, Min Soo Kim, Jae Wook Choi, Honggon Kim, Byoung Sung Ahn, Sang Deuk Lee, Hyunjoo Lee, Chang Soo Kim, Dong Jin Suh, Jeong Myeong Ha, Kwang Ho Song

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

As part of an effort to prepare a refrigerant with zero ozone depletion potential (ODP) and with a low global warming potential (GWP), the catalytic dehydrofluorination of 1,1,1,2,3-tetrafluoropropane (HFC-245eb) is performed to produce 2,3,3,3-tetrafluoropropene (HFO-1234yf). Cr2O3 prepared by the sol-gel method (Cr2O3(SG)) exhibits good catalytic activity attributable to the formation of surface chromium oxyfluoride, which exhibits better catalytic activity with high-valent chromium and a larger fluorine content. The formation of chromium oxyfluoride from chromium oxide is achieved by in-situ fluorination in the early stage of dehydrofluorination, avoiding the conventional fluorination method using toxic HF.

Original languageEnglish
JournalCatalysis Today
DOIs
Publication statusAccepted/In press - 2016 Aug 11

Keywords

  • Catalyst
  • Chromium oxyfluoride
  • Dehydrofluorination
  • HFC-245eb
  • HFO-1234yf

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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