Patent ID: 7960063

Claim:
A method for hydrogen, oxygen and heat production, comprising: thermally decomposing an alkali metal carbonate or an alkali earth metal carbonate to produce a gaseous metal, carbon dioxide and oxygen; liquefying the gaseous metal to a liquid metal; reacting said liquid metal with a hydroxide to produce a metal oxide and hydrogen; reacting the metal oxide with water to produce a metal hydroxide; reacting some of said metal hydroxide with carbon dioxide to recover metal carbonate for use with said thermally decomposing step; recovering some of said metal hydroxide for use with said reacting said liquid metal step; and recycling the recovered metal carbonate and the metal hydroxide; recovering said hydroxide and said metal carbonate; and recycling said metal carbonate for use with said thermal decomposition step and said hydroxide for use with said reaction with metal step, wherein recycling of said metal carbonate and said hydroxide permit continuous production.