Drop-in recycled refrigerant compositions having no net GWP

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11746271
SERIAL NO

18045538

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Abstract

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A refrigerant composition includes about 90-92 wt % difluoromethane and about 8-10 wt % pentafluoroethane. The refrigerant composition is formed from all recycled materials, and the refrigerant composition has a net global warming potential of about 0. A method of preparing the refrigerant composition includes injecting a mixture of recovered refrigerants into the center of a distillation column, the mixture of injected refrigerants being difluoromethane, pentafluoroethane and chlorodifluoromethane, removing from the top of the distillation column a refrigerant composition of about 90-92 wt % difluoromethane and about 8-10 wt % pentafluoroethane, and removing chlorodifluoromethane from a bottom of the distillation column.

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Patent Owner(s)

Patent OwnerAddress
THE COULAN COMPANY L L C3950 POWHATAN RD CLAYTON NC 27520

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Couchot, David L Mason, US 8 1
Kivlan,, IV Harold B Clayton, US 3 0
Mainali, Abiral Raleigh, US 5 0
Maloney, Raymond E Clayton, US 5 0

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