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
| Autor: | Seoyeon Lim, Dong Jin Suh, Hyunjoo Lee, Chang Soo Kim, Jeong-Myeong Ha, Byoung Sung Ahn, Honggon Kim, Kwang Ho Song, Min Soo Kim, Sang Deuk Lee, Jae Wook Choi |
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| Rok vydání: | 2017 |
| Předmět: |
In situ
Materials science 010405 organic chemistry Inorganic chemistry chemistry.chemical_element General Chemistry 010402 general chemistry Ozone depletion potential 01 natural sciences Catalysis Pentafluoropropane 0104 chemical sciences Refrigerant chemistry.chemical_compound Chromium chemistry 2 3 3 3-Tetrafluoropropene Fluorine |
| Zdroj: | Catalysis Today. :42-48 |
| ISSN: | 0920-5861 |
| DOI: | 10.1016/j.cattod.2016.11.017 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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