Acid water tank deodorization system for sulfur recovery device

Abstract

The invention relates to an acid water tank deodorization system for a sulfur recovery device. The system comprises a plurality of acid water tanks, wherein a blow-down pipe is arranged on the top ofeach acid water tank; a water discharge pipe is arranged at the bottom of each acid water tank; the blow-down pipes are connected with a water seal tank; an outlet of the water seal tank is connectedwith the bottom of a first washing tower through a first rich gas pipe; the top of the first washing tower is connected with the bottom of a second washing tower through a first poor gas pipe; the blow-down pipe is arranged on the top of the second washing tower; a first absorbent poor liquid pipe is arranged on the top of the first washing tower; a first absorbent rich liquid pipe is arranged atthe bottom of the first washing tower; a second absorbent poor liquid pipe is arranged on the top of the second washing tower; a second absorbent rich liquid pipe is arranged at the bottom of the second washing tower. The system has the advantages that the system design is reasonable; hydrogen sulfide and ammonia gas are respectively subjected to adsorption treatment; in addition, the ammonia gasis firstly removed; the N-methylethanolamine inactivation is prevented. A foreign smell source of the whole device region is controlled by the system; the pollution and the potential safety hazards are eliminated; the environment-friendly benefits are huge.

Description

Technical field: [0001] The invention relates to an acid water tank deodorization system for a sulfur recovery device. Background technique: [0002] The sour water tank area is the centralized treatment area for sulfur-containing sewage in oil refineries, and the water contains hydrogen sulfide, ammonia, organic sulfides, oil gas and other malodorous gases. Under certain working conditions, due to the increase of the internal pressure of the acidic water tank, in order to avoid potential safety hazards, the gas in the acidic water tank will break through the water seal and discharge the gas into the air to reduce the pressure in the acidic water tank. Prevent safety accidents in acid water tanks. However, because the gas in the acidic water tank contains a large amount of hydrogen sulfide and ammonia, and the discharge is relatively frequent, it will not only pollute the environment after being discharged into the atmosphere, but also have potential safety hazards. Now som...

AI Technical Summary

Problems solved by technology

However, because the gas in the acidic water tank contains a large amount of hydrogen sulfide and ammonia, and the discharge is relatively frequent, it will not only pollute the environment after being discharged into the atmosphere, but also have potential safety hazards. Now some processes use water for absorption treatment. The absorption effect is not good, and the ammonia and hydrogen sulfide cannot be recovered

Existing technology does not have the solution to this

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