Estimated photochemical ozone creation potentials (POCPs) of CF3CF = CH2 (HFO-1234yf) and related hydrofluoroolefins (HFOs)

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Abstract

The photochemical ozone creation potentials (POCPs) for CF3CF{double bond, long}CH2 and other commercially significant hydrofluoroolefins have been estimated for the first time. CF3CF{double bond, long}CH2 (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: CH2{double bond, long}CF2, 18.0; CF2{double bond, long}CF2, 12.5; CH2{double bond, long}CHCF3, 10.7; CF2{double bond, long}CFCF3, 5.4; Z-CHF{double bond, long}CFCF3, 5.6; E-CHF{double bond, long}CFCF3, 7.3; CH2{double bond, long}CHCF2CF3, 6.6; and t-CHF{double bond, long}CHCF3, 6.4.

OriginalsprogEngelsk
TidsskriftAtmospheric Environment
Vol/bind44
Udgave nummer11
Sider (fra-til)1478-1481
Antal sider4
ISSN1352-2310
DOI
StatusUdgivet - apr. 2010

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