Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1983-01-10
1984-08-14
Kratz, Peter F.
Gas: heating and illuminating
Processes
Fuel mixtures
48DIG2, 48 69, 48206, 48210, C10J 346
Patent
active
044654960
ABSTRACT:
A process for the removal of slag and other residual solid material from a coal gasification process as a suspension in water free from noxious gases normally associated therewith wherein water is drawn off from the quench section of a coal gasifier with the slag into lock hopper and is displaced by introducing cold fresh water into the lower portion of the lock hopper displacing the sour water from an exit in the upper portion of the lock hopper back into the quench section of the coal gasification system. In an alternate embodiment, noxious gases are stripped from the quench water in the lock hopper with a stripping gas. Solid waste and clean or decontaminated water are discharged from the system without pollution of the environment.
REFERENCES:
patent: 1864009 (1932-06-01), Allen
patent: 3607157 (1971-09-01), Schlinger et al.
patent: 3884649 (1975-10-01), Matthews
patent: 3971638 (1976-07-01), Matthews
patent: 4170550 (1979-10-01), Kamody
patent: 4381924 (1983-05-01), Schmidt et al.
Kratz Peter F.
Kulason Robert A.
O'Loughlin James J.
Texaco Development Corporation
Woodard Joye L.
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