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Intrinsically-safe energy-saving and environmentally-friendly refrigerant

An energy-saving, environmentally-friendly, intrinsically safe technology, applied in heat exchange materials, sustainable manufacturing/processing, chemical industry, etc., to achieve the effects of small molecular weight, good flow performance, and large evaporation potential

Inactive Publication Date: 2018-06-29
广东北凌通环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional hydrocarbon ingredients are often used in combination with CFCs, HFCs, etc., therefore, still present some level of environmental risk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The invention provides a technical solution: an intrinsically safe energy-saving and environment-friendly refrigerant, using high-purity propane, isobutane and n-butane, wherein the proportion of propane is 38%-40%, and the proportion of isobutane and n-butane The ratio is 60%-62%, and they are mixed together, and then three gases of nitrogen, methane and ethane are selected. The gas phase of the above-mentioned raw materials after primary separation is cooled to a gas-liquid two-phase state, and then passed through a secondary separator The separated liquid phase is cooled by the liquid phase throttling valve, and the residual gas is cooled and liquefied by the subcooler, and then throttled to produce cold, and finally an environmentally friendly refrigerant is obtained; the ratio of isobutane to n-butane 1 / 3 to 4 / 3; the nitrogen, methane and ethane are all purified.

[0017] Its physical and chemical indicators are close to those of the existing Freon R22 and R134a, a...

Embodiment 2

[0019] The environmentally friendly refrigerant can also be obtained by using 1,1,1-trichlorotrifluoroethane as a raw material, using 2% Ru / C as a catalyst, and then dechlorinating to obtain a refrigerant; the dechlorination process uses metal dechlorination Or hydrodechlorination; the environmentally friendly refrigerant can also be obtained by using trifluorodichloroethane as a raw material, using amines as a catalyst, and then using metal copper to react with trifluorodichloroethane to obtain 1,1,1,4 , 4,4-hexafluoro-2-butene; the amine catalyst is methylamine, ethylamine or diethylamine, and the method can effectively degrade chlorine atoms.

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PUM

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Abstract

The invention discloses an intrinsically-safe energy-saving and environmentally-friendly refrigerant which is characterized in that high-purity propane, isobutene and n-butane are adopted and are blended together, wherein the propane is 38-40 percent, the isobutene and the n-butane are 60-62 percent; then three gases, namely nitrogen, methane and ethane are selected and used, a gas phase after primary separation of the above raw materials is cooled into a gas-liquid two-phase state, a liquid phase separated out by a secondary separator is cooled through a liquid phase throttle valve, and residual gas is cooled and liquefied and then is throttled and cooled; finally, the environmentally-friendly refrigerant is obtained; the physicochemical index of the intrinsically-safe energy-saving and environmentally-friendly refrigerant is close to that of existing CFCS R22 and R134a, and the filling quantity only is 38-40 percent of Freon; due to small molecular weight and good flow performance, the intrinsically-safe energy-saving and environmentally-friendly refrigerant not only is larger in evaporation potential and obvious in refrigerating effect, but also is free from damage to an ozone layer, has a greenhouse effect of almost O and is more energy-saving and environmentally-friendly.

Description

technical field [0001] The invention relates to the technical field of refrigerants, in particular to an intrinsically safe energy-saving and environment-friendly refrigerant. Background technique [0002] Chlorofluorocarbons, such as dichlorodifluoromethane and monochlorodifluoromethane, for example, have been used as refrigerants for air conditioners, refrigerators, and the like. Such ingredients are also used in dual purposes for cleaning or cleaning delicate components such as semiconductor chips. Chlorofluorocarbons have been widely used due to their relatively safe non-flammability, high stability and low toxicity. However, chlorofluorocarbons are known to contribute to the damage of the Earth's ozone layer and thus have dangerous effects on the global environment. For this reason, the production and use of chlorofluorocarbons has also gradually declined, and only small amounts of chlorofluorocarbons are still in use today. [0003] Various alternatives to chloroflu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
CPCC09K5/042C09K5/045C09K2205/12C09K2205/126C09K2205/132C09K2205/43Y02P20/10
Inventor 叶亮诚
Owner 广东北凌通环保新材料有限公司
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