Compositions comprising 2,3,3,3-tetrafluoropropene, 1,1,2,3-tetra-chloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane
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Solution Overview
Problem
New environmental regulations require low global warming potential compounds for refrigeration, air-conditioning, and heat pump applications, necessitating the development of compositions that can replace higher GWP saturated HFC refrigerants.
Innovation Solution
A composition comprising HFO-1234yf and additional compounds such as HCO-1250xf, HCC-260da, HCC-240aa, HCFO-1233xf, and HCFC-244bb, with the additional compounds present in small amounts (less than 1 weight percent) to enhance its properties as a heat transfer fluid, aerosol propellant, and foaming agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If new low global warming potential compounds are synthesized to replace high GWP refrigerants, then environmental compatibility is improved, but manufacturing purity and composition consistency deteriorate due to the presence of additional byproduct compounds
Solution Approach 1:
The patent converts the harmful presence of byproduct compounds into a beneficial feature by demonstrating that the specific mixture of HFO-1234yf with byproducts like HCO-1250xf, HCC-260da, and HCFO-1233xf actually improves thermodynamic performance and heat transfer characteristics compared to pure HFO-1234yf, while maintaining low GWP
Solution Approach 2:
The patent changes the composition parameters by defining specific ranges for byproduct content (e.g., HCO-1250xf at 0.1-5 wt%, HCC-260da at 0.1-3 wt%) that optimize both environmental performance and thermodynamic properties, transforming the composition from an impurity problem to a performance optimization problem
2Adaptability or versatility
If additional compounds are present in the HFO-1234yf composition, then composition complexity increases, but separation and purification requirements and processing costs increase
Solution Approach 1:
The patent extracts only the beneficial byproduct compounds that improve performance (HCO-1250xf, HCC-260da, HCC-240aa, HCFO-1233xf) while excluding harmful impurities, creating a controlled multi-component composition that balances performance enhancement with manufacturing feasibility
Solution Approach 2:
The patent creates a composite refrigerant composition where HFO-1234yf serves as the base compound and specific byproducts act as functional additives, similar to composite materials science, where the combination of components produces synergistic effects that neither component achieves alone
Data Source
AI summary
The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.