Vapor absorbent compositions comprising potassium formate
OwnerStephen Atkinsoninventor
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Abstract
An absorbent for use in absorption refrigeration systems, air conditioning systems, heat pumps or dehumidifiers comprising a solution of potassium formate. The absorbent is relatively non-toxic and relatively non-corrosive towards metals. The absorbent is generally water-based but may also comprise ammonia or methanol. Additives such as corrosion inhibitors or other absorbent salts may be included.
Claims10
A method of operating a refrigeration, air conditioning, heat pumping or dehumidification system comprising:
- contacting a vapor with a vapor absorbent, whereby said vapor is absorbed by said vapor absorbent, wherein said vapor absorbent comprises a polar solvent and 40% to 70% by weight of potassium formate based on the total weight of the vapor absorbent;
- regenerating the vapor absorbent;
- and
- using at least a portion of said regenerated vapor absorbent as the vapor absorbent, wherein the step of regenerating said vapor absorbent consists essentially of heating.
In a refrigeration system, air conditioning system, heat pump, dehumidifier or component part thereof which employs a vapor absorbent and a generator to regenerate the vapor absorbent, wherein the step of regenerating the vapor absorbent consists essentially of heating, the improvement comprising employing as a vapor absorbent a solution comprising a polar solvent and 40% to 70% by weight of potassium formate.
A method of operating a dehumidification system which comprises the steps of:
- contacting a vapor with a vapor absorbent whereby said vapor absorbent absorbs said vapor, wherein said vapor absorbent comprises a polar solvent and 40% to 70% by weight of potassium formate based on the total weight of vapour absorbent;
- and
- regenerating the vapor absorbent having absorbed the vapor to form regenerated vapor absorbent;
- and
- using at least a portion of the regenerated vapor absorbent as the vapor absorbent, wherein the step of regenerating said vapor absorbent consists essentially of heating.
In a dehumidification system which employs a vapor absorbent and a generator to regenerate the vapor absorbent, wherein the step of regenerating the vapor absorbent consists essentially of heating, the improvement comprising employing as the vapor absorbent a solution comprising a polar solvent and 40% to 70% by weight of potassium formate.
Dependencies are inferred from the claim text.