Method of recovering heat of reaction

摘要

A method of recovering the heat of reaction for use in chemical heat storage or chemical heat pump systems wherein 2 moles of water vapor is reacted with 1 mole of calcium bromide anhydride to make use of the heat of hydration evolved. The method is characterized by producing water vapor at a high temperature level by heating water in an evaporator with use of the heat of hydration evolved by the hydration reaction of calcium bromide monohydrate into calcium bromide dihydrate in a first reactor included in a plurality of reactors, and supplying the resulting water vapor to a second reactor included in the reactors as water vapor for the hydration reaction of the monohydrate into the dihydrate. The method gives heat substantially at the same high temperature level as the heat of hydration of the anhydride into the monohydrate.