Cascade heat recovery with coproduct gas production

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:866019

Brown, William R ^[1]; Cassano, Anthony A ^[2]; Dunbobbin, Brian R ^[2]; Rao, Pradip ^[2]; Erickson, Donald C ^[3]

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1. Zionsville, PA
2. Allentown, PA
3. Annapolis, MD

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.

• Research Organization: AIR PRODUCTS & CHEMICALS INC
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-82CE40544
• Assignee: Air Products and Chemicals, Inc. (Allentown, PA)
• Patent Number(s): US 4617182
• OSTI ID: 866019
• Country of Publication: United States
• Language: English

Related Subjects

cascade
heat
recovery
coproduct
gas
production
process
integration
chemical
absorption
separation
oxygen
nitrogen
air
combustion
set
forth
excess
temperature
availability
effectively
utilized
desorb
product
absorbent
sensible
reaction
produce
stream
enrich
desorption
conducted
exchange
preferably
performed
pressure
differential
10
atmospheres
provides
considerable
flexibility
sensible heat
gas production
heat recovery
combustion process
product gas
process stream
heat exchange
pressure differential
temperature process
set forth
temperature heat
gas product
preferably performed
oxygen product
absorption separation
/423/75/208/502/