HFC-143 Refrigerant Composition for Low-GWP Azeotropic Separation
Solution Overview
Problem
Existing refrigerants have high global warming potential and lack efficient methods for separation and use in azeotropic or azeotrope-like compositions, limiting their application in refrigerating machines.
Innovation Solution
A composition comprising 1,1,2-trifluoroethane (HFC-143) with additional compounds such as 1-chloro-1,2,2-trifluoroethane (HCFC-133) and 1-chloro-2-fluoroethylene (HCFO-1131) forms azeotropic or azeotrope-like mixtures, reducing global warming potential and enabling efficient separation and use in refrigerating machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional HFC refrigerants are used, then refrigeration performance is maintained, but global warming potential increases
Solution Approach 1:
The patent changes the chemical composition parameters of the refrigerant by using HFC-143 combined with specific compounds (HCFC-133, HCFC-133b, or HCFO-1131) in controlled ratios, thereby reducing global warming potential while maintaining refrigeration performance through optimized compositional parameters
Solution Approach 2:
The patent creates a composite refrigerant system by combining HFC-143 with other fluorinated compounds to form azeotropic or azeotrope-like mixtures, achieving both environmental benefits (lower GWP) and functional reliability (stable refrigeration performance) through synergistic material composition
2Productivity
If HFC-143 is used as refrigerant, then refrigeration function is achieved, but separation efficiency decreases
Solution Approach 1:
The patent optimizes the compositional parameters of the refrigerant mixture to achieve azeotropic or azeotrope-like behavior, which enables efficient separation processes while maintaining reliable refrigeration function through controlled mixture properties
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves lower global warming potential and allows for efficient separation and use in refrigerating machines, providing a stable and effective refrigerant alternative to conventional HFCs.
Implementation Method 1
A composition comprising a refrigerant, the refrigerant comprising 1,1,2-trifluoroethane (HFC-143) and at least one compound selected from the group consisting of 1-chloro-1,2,2-trifluoroethane (HCFC-133), 1-chloro-1,1,2-trifluoroethane (HCFC-133b), and 1-chloro-2-fluoroethylene (HCFO-1131)
Data Source
AI summary
A novel composition comprising HFC-143 is provided.This invention relates to a composition comprising a refrigerant, wherein the refrigerant comprises 1,1,2-trifluoroethane (HFC-143), and at least one compound selected from the group consisting of 1-chloro-1,2,2-trifluoroethane (HCFC-133), 1-chloro-1,1,2-trifluoroethane (HCFC-133b), and 1-chloro-2-fluoroethylene (HCFO-1131).