| 摘要 |
An apparatus for heating a liquid comprises first and second storage vessels, a reaction vessel, a first heat exchanger, a second heat exchanger, at least one ancillary heat exchanger, a separator and a burner. The first storage vessel contains a metal powder slurry or suspension in water, and the second storage vessel contains a solution of an alkali metal hydroxide. The reaction vessel is in fluid communication with the storage vessels and has at least one inlet through which the metal power slurry/suspension and the alkali metal hydroxide can be introduced so that they react exothermically. First and second outlets are provided for removing liquid and gaseous reaction product streams respectively. The first heat exchanger is located in the reaction vessel so that heat produced by the exothermic reaction is transferred to the liquid. The separator is linked to the second outlet, and collects hydrogen gas formed by the exothermic reaction for supply to the burner, where the second heat exchanger is associated with the burner and transfers heat obtained from combustion of the hydrogen gas to the liquid. An ancillary heat exchanger is located downstream of the first outlet for extracting heat from the liquid reaction product stream. |
