PROBLEM TO BE SOLVED: To provide a one-column type coke oven gas desulfurization facility which does not cause mingling of an in-regeneration part gas into a refined coke oven gas, and can provide the refined coke oven gas having a high calorific value.;SOLUTION: Ventilation between an absorption part 3 and a lower regeneration part 4 is blocked by a partition 6, and sulfur-containing absorption liquid 2 in the absorption part 3 is sent to the regeneration part 4 through a liquid sending pipe 7, and ventilation between the liquid sending pipe 7 and the regeneration part 4 is blocked by a seal pot 8 provided on the lower end of the liquid sending pipe 7, and gas in the regeneration part 4 generated by oxidation of the sulfur-containing absorption liquid 2 is discharged to the outside through an exhaust pipe 10, and operation of an absorption liquid replenishing pump 13 is controlled corresponding to a liquid level of the seal pot 8 detected by a liquid level gauge 12, to thereby replenish the absorption liquid into the seal pot 8 automatically when breakage of water seal occurs in the seal pot 8. Further, operation of a sulfur slurry pump 18 is controlled corresponding to an oxygen concentration in gas in the regeneration part 4 detected by an oxygen concentration meter 16, to thereby discharge automatically sulfur slurry on the bottom part of the seal pot 8.;COPYRIGHT: (C)2012,JPO&INPIT
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