Distillation: processes – thermolytic – Arranging the carbonaceous material in the carbonizing zone
Patent
1976-07-29
1978-08-08
Wolk, Morris O.
Distillation: processes, thermolytic
Arranging the carbonaceous material in the carbonizing zone
202255, 202257, 202258, 202263, C10B 2704
Patent
active
041055039
ABSTRACT:
Control of emission from coke ovens during charging. A bank of coke ovens is provided with two gas mains. The first of the gas mains is connected to each of the individual ovens in turn during charging. The second of the gas mains is connected to the bank of ovens during coking. A fluid energized venturi ejector maintains a predetermined level of vacuum at the head of each individual coke oven during charging. Means are provided to automatically reduce the suction provided by the ejector if the level of vacuum exceeds said limit. This means consists of a valve operated by changes in the level of vacuum at the head of the individual oven during charging. The valve connects the second main to the first, thus increasing the gas pressure applied at the throat of the venturi ejector in turn decreasing the degree of vacuum provided by the venturi ejector. The energy for the ejector may be provided by flushing liquor or by a compressible fluid such as steam, air or an inert gas.
REFERENCES:
patent: 2066704 (1937-01-01), Still
patent: 2975109 (1961-03-01), Van Ackeren
patent: 3623959 (1971-11-01), Knappstein
patent: 3647053 (1972-03-01), Palumbo
patent: 3968014 (1976-07-01), Armour
British Steel Corporation (Chemicals) Limited
Turk Arnold
Wolk Morris O.
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