US2022195278A1PendingUtilityA1

Refrigerant, heat transfer compositions, methods, and systems

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Assignee: HONEYWELL INT INCPriority: Jan 13, 2017Filed: Mar 11, 2022Published: Jun 23, 2022
Est. expiryJan 13, 2037(~10.5 yrs left)· nominal 20-yr term from priority
Inventors:Joshua CloseAnkit SethiSamuel F. Yana MottaMichael PetersenGustavo PottkerRonald P. Vogl
C09K 2205/22C09K 2205/40C09K 5/045C09K 2205/126C09K 5/044C09K 2205/122
72
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Claims

Abstract

Disclosed are refrigerants, and heat transfer compositions, heat transfer systems and heat transfer methods containing such refrigerants, wherein the refrigerant comprises at least about 97% by weight of the following three components (a)-(c) and the following fourth component if present:(a) trans-1-chloro-3,3,3-trifluoropropene (HFCO-1233zd(E)),(b) trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)),(c) trifluoroiodomethane (CF3I), and.(d) 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea).

Claims

exact text as granted — not AI-modified
1 . A refrigerant comprising at least about 97% by weight of the following four compounds, with each compound being present in the following relative percentages:
 from 1% by weight to 2%+/−0.5% by weight trans-1-chloro-3,3,3-trifluoropropene (HFCO-1233zd(E)),   from about 73% by weight to about 87% by weight trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)),   4.4%+/−0.5% by weight 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea), and   from about 6.6% by weight to about 20.6% by weight trifluoroiodomethane (CF 3 I).   
     
     
         2 . A heat transfer composition comprising a refrigerant of  claim 1 . 
     
     
         3 . The heat transfer composition of  claim 2  further comprising a lubricant. 
     
     
         4 . The heat transfer composition of  claim 2  further comprising a stabilizer. 
     
     
         5 . The heat transfer composition of  claim 3  further comprising a stabilizer. 
     
     
         6 . A refrigerant comprising at least about 97% by weight of the following three compounds, with each compound being present in the following relative percentages of:
 from 1% by weight to 3% by weight trans-1-chloro-3,3,3-trifluoropropene (HFCO-1233zd(E),   from about 77% by weight to about 83% by weight trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E), and   from about 15% by weight to about 21% by weight trifluoroiodomethane (CF3I).   
     
     
         7 . A heat transfer composition comprising a refrigerant of  claim 1 . 
     
     
         8 . The heat transfer composition of  claim 2  further comprising a lubricant. 
     
     
         9 . The heat transfer composition of  claim 2  further comprising a stabilizer. 
     
     
         10 . The heat transfer composition of  claim 3  further comprising a stabilizer.

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