Process for quenching product gas of slagging coal gasifier

Details Process for quenching product gas of slagging coal gasifier Process for quenching product gas of slagging coal gasifier

1975-06-05

1977-10-18

Bashore, S. Leon

Gas: heating and illuminating

Processes

Coal

23277C, 34 13, 34 57R, 48 19TR, 48DIG2, 110119, 261 17, 261 79A, 261DIG54, 261DIG76, 55 83, 55261, C10J 346, C10J 384

Patent

active

040544249

ABSTRACT:
A process is disclosed for quenching of the partial combustion product gas of a slagging coal gasifier containing suspended molten slag particles wherein the hot product gas of the gasifier is passed through a tubular quench zone into which a shielding gas is introduced circumferentially to form an annular layer or protective gas shield between the product gas and the walls of the quench zone and a cooling gas is injected radially to effect direct cooling of the product gas to a temperature at which the molten slag particles solidify and lose their stickiness, said protective gas shield being maintained for a sufficient distance along the axis of the quench zone to prevent contact between the quench zone walls and the hot product gas during said cooling.

REFERENCES:
patent: 2302396 (1942-11-01), Smith
patent: 2699384 (1955-01-01), Peery et al.
patent: 2716598 (1955-08-01), Moses
patent: 2905544 (1959-09-01), Totzek
patent: 2971830 (1961-02-01), Kawai et al.
patent: 3495384 (1970-02-01), Alliger
patent: 3567399 (1971-03-01), Altmann et al.
patent: 3715301 (1973-02-01), Tassoney et al.
patent: 3841061 (1974-10-01), Pike
patent: 3864100 (1975-02-01), Blaskowski

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