초록

Hydrogen is produced by the reaction of water with chromium sesquioxide and strontium oxide. The hydrogen producing reaction is combined with other reactions to produce a closed chemical cycle for the thermal decomposition of water.

대표청구항 ▼

A thermochemical process for splitting water to produce hydrogen, comprising the steps of: reacting (1) chromium sesquioxide with strontium oxide and water to produce strontium orthochromate IV and hydrogen as reaction products; separating said hydrogen as a product of reaction; reacting (2) said st

A thermochemical process for splitting water to produce hydrogen, comprising the steps of: reacting (1) chromium sesquioxide with strontium oxide and water to produce strontium orthochromate IV and hydrogen as reaction products; separating said hydrogen as a product of reaction; reacting (2) said strontium orthochromate IV and strontium hydroxychromate V with water to produce chromium sesquioxide, strontium chromate and strontium hydroxide as products; reusing the thus produced chromium sesquioxide in said first mentioned step of reacting; reacting (3) said strontium chromate with a portion of said strontium hydroxide to produce strontium hydroxychromate V, water and oxygen as products; separating said oxygen as a product; reusing said strontium hydroxychromate V as a reactant in said second mentioned step of reacting; and reusing the remaining portion of said strontium hydroxide to fulfill the strontium oxide requirement of said first mentioned step of reacting.