Lim, Seoyeon Kim, Min Soo Choi, Jae-Wook Kim, Honggon Ahn, Byoung Sung Lee, Sang Deuk Lee, Hyunjoo Kim, Chang Soo Suh, Dong Jin Ha, Jeong-Myeong Song, Kwang Ho 2024-01-20T00:32:39Z 2024-01-20T00:32:39Z 2021-09-05 2017-09 0920-5861 https://pubs.kist.re.kr/handle/201004/122277 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. English Elsevier BV 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 Article 10.1016/j.cattod.2016.11.017 1 Catalysis Today, v.293, pp.42 - 48 Catalysis Today 293 42 48 N scie scopus 000405047100007 2-s2.0-85008158257 Chemistry, Applied Chemistry, Physical Engineering, Chemical Chemistry Engineering Article; Proceedings Paper GAS-PHASE FLUORINATION 2-CHLORO-3,3,3-TRIFLUOROPROPENE 1,1,2,3-TETRACHLOROPROPENE PERFORMANCE FLUORIDE OXIDE CFC Dehydrofluorination HFC-245eb HFO-1234yf Chromium oxyfluoride Catalyst