A combined regeneration tail gas purification tower
A technology of exhaust gas purification and combined tower, applied in the direction of air quality improvement, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of increasing the burden on the air blower of the regeneration tower, large equipment investment, and unfavorable production, and reduce energy consumption. , The effect of stable and reliable operation, saving floor space
Active Publication Date: 2015-09-23
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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Problems solved by technology
The exhaust gas passes through the packing layers of the two towers in turn, and the pressure loss is relatively large, which increases the burden on the air blower of the regeneration tower and consumes a lot of kinetic energy. The washing liquid of the pickling tower comes from the ammonium sulfate section, and is sent back to the ammonium sulfate after circulating in the tower In the workshop section, the investment in equipment is large, and the mutual coupling between devices is not conducive to production
Method used
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Embodiment Construction
[0016] The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:
[0017] like figure 1 As shown, a combined regeneration tail gas purification tower is composed of a regeneration tower tail gas removal acid gas device 25 and a vertical tower, and the vertical tower is connected with the regeneration tower tail gas removal acid gas device 25 through a secondary ejector 19, The vertical tower is divided into a crystallization section 2, a deamination section 6, and an acid gas removal section 10. The acid gas removal section 10 is arranged on the upper part of the deamination section 6 and is connected with the deamination section 6 through a liquid breaker 8, and the crystallization section 2 is arranged in The lower part of the deamination section 6, the deamination section 6 is connected with the crystallization section 2 through the conical head 4;
[0018] The crystallization section 2 includes a crystallization ...
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The invention discloses a regenerated tail gas purification combined tower which comprises a regenerated tower tail gas acid gas removal device and a vertical tower, wherein the vertical tower is connected with the regenerated tower tail gas acid gas removal device through a secondary ejector; the vertical tower is divided into a crystallization section, a deamination section and an acid gas removal section; the acid gas removal section is arranged on the upper part of the deamination section and is connected with the deamination section through a first liquid interrupt disc; the crystallization section is arranged on the lower part of the deamination section; the deamination section is connected with the crystallization section through a conical seal head. Compared with the prior art, the regenerated tail gas purification combined tower has the beneficial effects that ammonia and acid gases entrained in the tail gas can be effectively absorbed, and the equipment is simple to operate and maintain and stable and reliable to operate. The purification process is simplified, the floor space is saved, the regenerated tail gas is injected by utilizing circulating mother liquor, the resistance of the regenerated tail gas is reduced, and the energy consumption is reduced. The ammonia in the tail gas can directly form ammonium sulfate crystals, the combined tower is independent from a coke oven gas ammonia recovery device, and the investment is saved.
Description
technical field [0001] The invention relates to the field of gas purification equipment, in particular to a regeneration tail gas purification combined tower. Background technique [0002] HPF desulfurization is a commonly used desulfurization technology in the coke oven gas purification system, but the tail gas of the regeneration tower contains a relatively high concentration of NH 3 and H 2 S and other acid gases, causing environmental pollution. Under the existing technical conditions, in order to make the desulfurization and regeneration tail gas discharge meet the requirements of the "Coking Chemical Industry Pollutant Discharge Standard GB16171-2012", that is, the exhaust tail gas contains NH 3 ≤30mg / m 3 , H 2 S≤3.0mg / m 3 , It is necessary to add a pickling tower and a water washing tower behind the regeneration tower, so that the tail gas can be treated in turn by the pickling tower and the water washing tower, so that the tail gas can meet the emission standard...
Claims
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IPC IPC(8): B01D53/78B01D53/75B01D53/40B01D53/58B01D53/52
CPCY02A50/20
Inventor 李晶晶梁有仪于涛段有龙
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC