Coal gasification: two-stage coal combustion process

Journal Article · Thu Mar 01 04:00:00 EST 1973 · Chem. Eng. Progr., v. 69, no. 3, pp. 54-55

OSTI ID:4310496

Karnavas, J A; LaRosa, P J; Pelczarski, E A

The strong affinity that exists between iron and sulfur, which makes it difficult to produce low-sulfur iron and steel, is the basis of the new gasification process. Coal is dissolved in a mass of molten iron where the coal's fixed carbon and sulfur are retained, and the coal volatiles crack and exit in the offgas as carbon monoxide and hydrogen. The dissolved carbon in the iron is then gasified by reaction with combustion air to yield additional carbon monoxide to the offgas. Experimental results show that an essentially SO/sub 2/- free offgas for subsequent combustion in a power plant boiler is produced. Based on anticipated gasification rates and experimental coal solubility efficiencies, the Two-Stage Coal Combustion process yields electrical power operating costs comparable to existing plants without SO/sub 2/ pollution into the atmosphere. (MCW)

• Research Organization: Applied Technology Corp., Pittsburgh
• NSA Number: NSA-29-023822
• OSTI ID: 4310496
• Journal Information: Chem. Eng. Progr., v. 69, no. 3, pp. 54-55, Journal Name: Chem. Eng. Progr., v. 69, no. 3, pp. 54-55; ISSN CEPRA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*COAL-- GASIFICATION
COAL GASIFICATION
DISSOLUTION
ECONOMICS
EFFICIENCY
ELECTRIC POWER
ENVIRONMENT
IRON
N80200* --Energy Utilization & Economics
POLLUTION
SULFUR OXIDES