System and method for retrofitting a refrigeration systems from HCFC to HFC refrigerant

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United States of America Patent

PATENT NO 9435575
APP PUB NO 20160025395A1
SERIAL NO

14877609

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Abstract

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A system and method for retrofitting a refrigeration system containing an HCFC refrigerant and a compatible lubricant, with an HFC refrigerant, comprising providing a transport container containing a mixture of a miscible lubricant and the HFC refrigerant, removing the HCFC refrigerant from the refrigeration system while maintaining at least a portion of a lubricant immiscible with the HFC refrigerant, and charging the refrigeration system with the mixture. The polyol ester lubricant may be present in a range exceeding about 5-15% by weight, e.g., 8%.

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Patent Owner(s)

Patent OwnerAddress
HUDSON TECHNOLOGIES INCUSA NEW YORK NEW YORK

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harkins, Charles Hampstead, US 4 31

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