Composition, method and apparatus for absorption heating

Claim 1

The method of absorption heating which comprises: a. releasing heat of solution in the vicinity of an area to be heated by absorbing a compound selected from the group consisting of dichloromonofluoromethane, monochlorodifluoromethane, trifluoromethane and monochloromonofluoromethane in an assymetrical furan ring containing compound having a boiling point between about 140° and 250° C. and the generic formula ##STR16## wherein R 1 is independently at each occurrence H; lower alkyl; lower alkoxy; phenyl; lower alkylene phenyl; hydroxy containing lower alkyl; lower alkyl carboxy; alkoxy alkyl of from 2 through 6 carbon atoms; lower alkylene carboxylate of from 2 through 6 carbon atoms; fluorine or chlorine, a is independently at each occurrence an integer of 1 or 2; and Z is a single or double bond; provided that, when Z is a single bond, a is 2, when Z is a double bond, a is 1, and provided that the compound contains at least one R 1 group having an oxygen atom which has a single bond to a carbon atom, b. heating the resulting solution to release said fluorocarbon from said solvent, c. condensing released fluorocarbon to form liquid fluorocarbon, d. evaporating the liquid fluorocarbon at a location removed from the vicinity of the area to be heated, and e. returning the evaporated fluorocarbon to the vicinity of the area to be heated for reabsorption into said solvent.

Claim 2

The method of absorption heating which comprises: a. releasing heat of solution in the vicinity of an area to be heated by absorbing a compound selected from the group consisting of dichloromonofluoromethane, monochlorodifluoromethane, trifluoromethane and monochloromonofluoromethane in an assymetrical furan ring containing compound having a boiling point between about 140° and 250° C. and the generic formula ##STR16## wherein R 1 is independently at each occurrence H; lower alkyl; lower alkoxy; phenyl; lower alkylene phenyl; hydroxy containing lower alkyl; lower alkyl carboxy; alkoxy alkyl of from 2 through 6 carbon atoms; lower alkylene carboxylate of from 2 through 6 carbon atoms; fluorine or chlorine, a is independently at each occurrence an integer of 1 or 2; and Z is a single or double bond; provided that, when Z is a single bond, a is 2, when Z is a double bond, a is 1, and provided that the compound contains at least one R 1 group having an oxygen atom which has a single bond to a carbon atom, b. heating the resulting solution to release said fluorocarbon from said solvent, c. condensing released fluorocarbon to form liquid fluorocarbon, d. evaporating the liquid fluorocarbon at a location removed from the vicinity of the area to be heated, and e. returning the evaporated fluorocarbon to the vicinity of the area to be heated for reabsorption into said solvent.