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Stabilité chimique des frigorigènes oléfines HFO et HCFO et leurs voies de dégradation mécanique potentielles. 

Chemical stability of HFO and HCFO olefin refrigerants and their potential mechanistic breakdown pathways.

Numéro : 0356

Auteurs : LEEHEY M., KUJAK S.

Résumé

HFO (hydrofluoroolefin) and HCFO (hydrochloroolefins) refrigerants are being widely adopted as low GWP alternatives to HCFC (hydrochlorofluorocarbons) and HFC (hydrofluorocarbon) refrigerants for use in HVAC&R equipment. HCFC and HFC chemical stability is well understood, and their chemical breakdown reactions are well established in literature. The olefin carbon-carbon double bonds offer multiple new chemical breakdown mechanistic pathways with few studies published with understanding on the breakdown mechanisms provided for results. As the use of HFO and HCFO chemistries become increasingly widespread, it is critical to develop this same level of understanding of their reaction pathways as with previous refrigerants.
This paper will provide a review of possible mechanistic and kinetic reaction pathways and a summary of studies for common HFO & HCFO chemistries that are currently used or could be used by the HVAC&R industry. Refrigerants of interest include stereoisomers R-1336mzz(Z) and (E), R-1233zd(E), R-1224yd(Z), R-1234ze(E), and R-1234yf.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Chemical stability of HFO and HCFO olefin refrigerants and their potential mechanistic breakdown pathways.
  • Identifiant de la fiche : 30031759
  • Langues : Anglais
  • Sujet : Technologie, Alternatives aux HFC
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0356

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