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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

Authors
Lim, SeoyeonKim, Min SooChoi, Jae-WookKim, HonggonAhn, Byoung SungLee, Sang DeukLee, HyunjooKim, Chang SooSuh, Dong JinHa, Jeong-MyeongSong, Kwang Ho
Issue Date
15-9월-2017
Publisher
ELSEVIER
Keywords
Dehydrofluorination; HFC-245eb; HFO-1234yf; Chromium oxyfluoride; Catalyst
Citation
CATALYSIS TODAY, v.293, pp.42 - 48
Indexed
SCIE
SCOPUS
Journal Title
CATALYSIS TODAY
Volume
293
Start Page
42
End Page
48
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/82224
DOI
10.1016/j.cattod.2016.11.017
ISSN
0920-5861
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. (C) 2016 Elsevier B.V. All rights reserved.
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