Hydrofluoroolefin

Chemical structure of 1,3,3,3-tetrafluoropropene (HFO-1234ze)

Hydrofluoroolefins (HFOs) are chemical compounds composed of hydrogen, fluorine and carbon. They are distinguished from hydrofluorocarbons (HFCs) by being derivatives of alkenes (olefins) rather than alkanes.

HFOs are being developed as "fourth generation" refrigerants with a thousand time lower global-warming potential than HFCs.[1][2] HFOs currently in use include 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,3,3,3-tetrafluoropropene (HFO-1234ze).[1][3] 1-Chloro-3,3,3-trifluoropropene (HFO-1233zd) is also under development.[4]

References

  1. 1 2 "HFO, i nuovi gas refirgeranti" (PDF). La Chimica l'Industria (in Italian) (Società Chimica Italiana) (4): 22. May 2012.
  2. ↑ Hydrofluoroolefins (HFOs), European Fluorocarbons Technical Committee
  3. ↑ Honeywell Sells Novel Low-Global-Warming Blowing Agent To European Customers, Honeywell press release, Oct. 7, 2008
  4. ↑ Cheryl Hogue (2011). "Replacing the Replacements". Chemical & Engineering News 89 (49): 31–32.


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