Thermal Efficiency in Heat Pump System with the Reaction Couple of 2-Propanol Dehydrogenation/Acetone Hydrogenation

Abstract

Thermal efficiency of the proposed chemical heat pump system has been enhanced extensively by adopting a liquid-film state under boiling conditions for the dehydrogenation catalysts, which are composed of Ru-Pt fine particles supported on carbon. Increase of rate for 2-propanol dehydrogenation as well as decrease of retardation caused by adsorbed acetone were ascribed to higher active-site temperatures than the boiling point of the solution. Characteristics of heat and mass transfers as correlated irreversible processes are discussed on the thermodynamical basis.