Estimated photochemical ozone creation potentials (POCPs) of CF₃CFCH₂ (HFO-1234yf) and related hydrofluoroolefins (HFOs)

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• 作者：T.J. Wallington ; M.P. Sulbaek Andersen ; O.J. Nielsen
• 关键词：POCP ; Hydrofluorocarbons ; CFC-replacements ; Hydrofluoroolefins ; R-1234yf ; HFC-1234yf ; HFO-1234yf
• 刊名：Atmospheric Environment
• 出版年：2010
• 出版时间：April 2010
• 年：2010
• 卷：44
• 期：11
• 页码：1478-1481
• 全文大小：146 K

文摘

The photochemical ozone creation potentials (POCPs) for CF₃CFCH₂ and other commercially significant hydrofluoroolefins have been estimated for the first time. CF₃CFCH₂ (HFO-1234yf) has a POCP of 7.0 which is less than that for ethane (12.3) and greater than for methane (0.6). Methane and ethane have sufficiently low POCPs that they are usually considered unreactive with respect to ozone formation in urban areas and accordingly are exempt from volatile organic compound (VOC) emission regulations. Estimated POCPs for other hydrofluoroolefins are: CH₂CF₂, 18.0; CF₂CF₂, 12.5; CH₂CHCF₃, 10.7; CF₂CFCF₃, 5.4; Z-CHFCFCF₃, 5.6; E-CHFCFCF₃, 7.3; CH₂CHCF₂CF₃, 6.6; and t-CHFCHCF₃, 6.4.