Loading patent…
AssigneeAir Products and Chemicals, Inc.
InventorsWilliam R. Brown, Anthony A. Cassano, Brian R. Dunbobbin, Pradip Rao, Donald C. Erickson
Estimating the term…
A process for the integration of a chemical absorption separation of oxygen and nitrogen from air with a combustion process is set forth wherein excess temperature availability from the combustion process is more effectively utilized to desorb oxygen product from the absorbent and then the sensible heat and absorption reaction heat is further utilized to produce a high temperature process stream. The oxygen may be utilized to enrich the combustion process wherein the high temperature heat for desorption is conducted in a heat exchange preferably performed with a pressure differential of less than 10 atmospheres which provides considerable flexibility in the heat exchange.
A method for separating oxygen from air by a reversible chemical absorption and desorption at high temperature and the recovery of heat from a combustion process by integrating the air separation in cascade heat exchange with the combustion process to produce oxygen from air and rejecting heat at a temperature of at least 700.degree. F., comprising the steps of:
A method for oxygen-enriching a fluidized catalytic cracker regenerator and utilizing the heat derived from the regenerator in an air separation to produce oxygen by a reversible chemical absorption and desorption in cascade heat exchange with said regenerator, comprising:
A method for oxygen-enriching a coal gasifier and utilizing the heat derived from the gasifier in an air separation to produce oxygen by a reversible chemical absorption and desorption in cascade heat exchange with said gasifier, comprising:
An integrated method for the separation of oxygen from air by a reversible chemical absorption and desorption at high temperature and pressure and the reduction of iron ore in an oxygen-enriched blast furnace wherein the separation of oxygen is assisted by the cascade heat exchange of the effluent from the combustion of blast furnace off-gas with the absorbent, comprising:
A method for oxygen-enriching a coal gasifier and utilizing the heat derived from the combustion of fuel gas from the gasifier in an air separation to produce oxygen by a reversible chemical absorption and desorption in cascade heat exchange with the flue gas from the combustion of fuel gas from said gasifier, comprising:
Dependencies are inferred from the claim text.