Catalytic gasification process and system
OwnerArnold M. Leasinventor
Life of this patent
Estimating the term…
Abstract
A catalytic gasification process and system for producing medium grade BTU gas including a gasification reactor having an inner air gasification zone, an outer steam gasification zone, a synthetic coal reaction zone, and an upper lime treating zone. The process and system of the present invention further includes a synthetic coal heating vessel which provides superheated recycled synthetic coal to the gasification reactor and a limestone treating vessel which provides superheated air and CO.sub.2 to the gasification reactor. The novel process and system of the present invention provides for the production of a medium grade BTU gas and several commercially valuable by-products with virtually no solid or liquid waste products.
Claims30
A catalytic gasification process for the production of a medium grade BTU gas comprising the steps of:
- providing a catalytic reagent comprising a process reagent and an alkali metal in a gasification reaction vessel, said process reagent selected from the group consisting of sillimanite and mullite;
- delivering carbonaceous fuel to the reaction vessel;
- delivering hot air to the reaction vessel;
- delivering steam to the reaction vessel;
- and
- withdrawing a medium grade BTU gas having direct commercial utility from the reaction vessel.
A catalytic gasification process for the production of a medium grade BTU gas comprising the steps of:
- providing a catalytic reagent comprising a process reagent and an alkali metal in a gas reaction vessel, said process reagent selected from the group consisting of sillimanite and mullite;
- delivering carbonaceous fuel to a first reaction zone of said reaction vessel;
- delivering hot air to said first reaction zone of said reaction vessel;
- delivering preheated iron oxides to a second reaction zone of said reaction vessel;
- and
- withdrawing a medium grade BTU gas from the reaction vessel;
- whereby hot air delivered to said first reaction zone reacts with carbon of the fuel in an exothermic reaction for the production of a low grade BTU gas and preheated iron oxides delivered to said second reaction zone react with carbon deposited on said catalytic reagent in an endothermic reaction for the production of a high grade BTU gas wherein the low grade BTU gas and the high grade BTU gas mix thereby forming a medium grade BTU gas.
A gasification system for the production of a medium grade BTU gas comprising:
- a gas reaction vessel which contains a catalytic reagent comprising a process reagent and an alkali metal, said process reagent selected from the group consisting of sillimanite and mullite;
- a first inlet means for receiving and directing carbonaceous fuel to said reaction vessel;
- a second inlet means for receiving and directing heated air to said reaction vessel;
- a third inlet means for receiving and directing steam to said reaction vessel;
- a gas product outlet means for removing a medium grade BTU gas from the reaction vessel;
- and
- a conveyance means for delivering carbonaceous fuel through said first inlet means.
A gasification system for the production of a medium grade BTU gas comprising:
- a gas reaction vessel which contains a catalytic reagent comprising a process reagent and an alkali metal, said process reagent selected from the group consisting of sillimanite and mullite;
- a first inlet means for receiving and directing carbonaceous fuel to a first reaction zone of said reaction vessel;
- a second inlet means for receiving and directing heated air to said first reaction zone of said reaction vessel;
- a third inlet means for receiving and directing preheated iron oxides to a second reaction zone of said reaction vessel;
- a gas product outlet means for removing a medium grade BTU gas from the reaction vessel;
- and
- a conveyance means for delivering carbonaceous fuel through said first inlet means;
- whereby hot air delivered to said first reaction zone through said second inlet means reacts with carbon of the fuel in an exothermic reaction for the production of a low grade BTU gas and preheated iron oxides delivered to said second reaction zone through said third inlet means react with carbon deposited on said catalytic reagent in an endothermic reaction for the production of a high grade BTU gas wherein the low grade BTU gas and the high grade BTU gas mix thereby forming a medium grade BTU gas.
Dependencies are inferred from the claim text.