A kind of sulfur recovery equipment

Abstract

The invention relates to the technical field of sulfur recovery, in particular to a sulfur recovery device, which includes a protective shell, two sets of brackets are fixed on the lower surface of the protective shell, a reaction tank is arranged inside the protective shell, and a processing mechanism is arranged on the protective shell. Including the fourth rotating rod, the invention drives the amine liquid in the reaction tank to shake by rotating the stirring sphere, increases the contact area between the amine liquid and the waste gas, allows the amine liquid and the waste gas to better contact, and improves the amine liquid’s effect on H 2 S and CO 2 Absorption rate, the sulfide in the exhaust gas is reduced by hydrogen or hydrolyzed into H 2 S and CO 2 , such as the reduction reaction: SO 2 +3H 2 =H 2 S+2H 2 O+Q, S+H 2 =H 2 S+Q, hydrolysis reaction: COS+H 2 O=H 2 S+CO 2 +Q, SC 2 +2H 2 O=2H 2 S+CO 2 +Q, absorbed by the amine liquid faster, this device improves the amine liquid and H by shaking the amine liquid 2 S, CO 2 The reaction speed improves the recovery efficiency.

Description

technical field [0001] The present application relates to the technical field of sulfur recovery, in particular to a sulfur recovery equipment. Background technique [0002] Usually, in the Claus sulfur recovery unit, the high-temperature process gas after combustion passes through the waste heat boiler and the primary condensing cooler successively to recover heat, generates steam and condenses the sulfur steam into liquid sulfur, separates the liquid sulfur and enters the primary reactor after reheating , under the action of the catalyst, the H in the process gas 2 S and SO 2 A reaction occurs to generate sulfur. After the reaction, the process gas is cooled by the secondary condensing cooler, and the sulfur vapor is condensed into liquid sulfur. The liquid sulfur is separated and reheated and then enters the secondary reactor. The remaining H 2 S and SO 2 The reaction continues to generate sulfur, and then it is cooled by a three-stage condensing cooler, and the proces...

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Problems solved by technology

[0003] For example, the Chinese patent discloses: a sulfur recovery tail gas condensation separation equipment, publication number: CN106082136A, this invention solves the problem of sulfur vapor carried by the tail gas at the outlet of the sulfur recovery device, and reduces the tail gas SO 2 emission, which improves the sulfur recovery rate of the device, but when the sulfur tail gas is treated, the H 2 S and SO 2 The absorption efficiency in amine liquid is slow, which affects the progress of the whole process

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