Tube-in-tube ionic liquid heat exchanger employing a selectively permeable tube

A tube-in-tube heat exchanger comprising:

• a) a selectively permeable tube comprising a selectively permeable layer and having an inside surface and an outside surface;
• b) a non-permeable tube having an inside surface and an outside surface;
• c) a flow of refrigerant;
• d) a flow of an ionic liquid;
• e) a flow of heat transfer fluid that exchanges heat with the flow of ionic liquid;
• wherein the flow of refrigerant is along one of the inside or outside surfaces of the selectively permeable tube and wherein the flow of ionic liquid is along the other of the inside surface and outside surface of the selectively permeable tube;
• wherein the refrigerant is transferred through the selectively permeable tube into the flow of ionic liquid;
• wherein heat is transferred between ionic liquid and the heat transfer fluid.