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Wet desulphurization device and process for sulfur-containing process gas

A technology of wet desulfurization and process gas, which is applied in the chemical industry, can solve the problems of economic rationality and comprehensive cost performance, and achieve the effects of improving gas-liquid mass transfer reaction speed, reducing equipment size, and reducing land occupation

Pending Publication Date: 2020-10-16
四川省达科特能源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the Claus device is used, its economic rationality and comprehensive cost performance are poor, so the Claus method is not suitable

Method used

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  • Wet desulphurization device and process for sulfur-containing process gas
  • Wet desulphurization device and process for sulfur-containing process gas
  • Wet desulphurization device and process for sulfur-containing process gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The device only includes the first desulfurization equipment A, and its structure diagram is as follows figure 1 shown.

[0069] A sulfur-containing process gas wet desulfurization device A, comprising:

[0070] Desulfurization tower assembly 100, the desulfurization tower assembly is sequentially provided with: process purification gas outlet 101; first demister section 102, including first demister 102.1 and demister flushing device 102.2, the tower contains After the sulfur process gas is desulfurized and purified, it exits the desulfurization tower assembly from the top of the tower;

[0071] Packed tower 103: Contains 3 packing absorption sections, the packing is standard structured packing or granular packing (materials are stainless steel, carbon steel, plastic, light porcelain or ceramics, porcelain plastic, etc.); and in each packing absorption section A gas-liquid redistributor 103.1 is provided at the top, and a top liquid distributor 103.2 is provided at t...

Embodiment 2

[0081] Compared with Example 1, the second desulfurization device 200 is added, which includes the first desulfurization device A and the second desulfurization device 200 (DGX type reactor), and the first high-efficiency reactor 108 of the first desulfurization device A Installed with 2 layers of liquid high-efficiency atomizing nozzles. The schematic diagrams of the first desulfurization equipment A and the second desulfurization equipment 200 are as follows image 3 , 4 shown.

[0082] The second desulfurization device 200 is connected to the first desulfurization device A through pipelines, including:

[0083] The high-efficiency reaction section 201 has two layers of second atomizing nozzles 201.1 inside, which are liquid high-efficiency atomizing nozzles, and the desulfurization liquid sprayed out is in countercurrent contact with the process gas to cause desulfurization absorption reaction; the top is equipped with a sulfur-containing process gas inlet 201.2 ;

[00...

Embodiment 3

[0093] Compared with Embodiment 2, the second desulfurization equipment is replaced by the third desulfurization equipment 300, that is, the device includes the first desulfurization equipment and the third desulfurization equipment, and the schematic diagram of the third desulfurization equipment is as follows Image 6 shown.

[0094] The third desulfurization equipment 300 includes: a first dedicated reactor 301 and a gas-liquid separation equipment 302, which are connected to the first desulfurization equipment through pipelines. The bottom of the first dedicated reactor 301 is provided with a gas-liquid inlet mixer 301.1, and the gas-liquid inlet mixer 301.1 is a general-purpose dendritic branch pipe distributor type; the height-to-diameter ratio of the first dedicated reactor 301 is 6:1, There are 450Y stainless steel regular orifice corrugated fillers 301.2 arranged inside to strengthen gas-liquid mass transfer and reaction; the gas-liquid separation equipment 302 is a w...

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Abstract

The invention belongs to the technical field of chemical engineering, and discloses a wet desulphurization device for sulfur-containing process gas, which is first desulphurization equipment, comprises a desulphurization tower assembly and a first efficient reactor (GXR type reactor) fixedly arranged on the outer side of the tower wall of the desulphurization tower assembly. The device can furthercomprise second desulfurization equipment and / or third desulfurization equipment and / or fourth desulfurization equipment, desulfurization of process gas with different loads or sulfur contents is achieved through combination of multiple stages of desulfurization equipment, it is guaranteed that the overall desulfurization efficiency of the device is larger than or equal to 99.9%, the overall structure of the desulfurization device is compact, and the occupied area is greatly reduced; airflow flows smoothly, resistance drop is small, energy is saved, consumption is reduced, the common rate ofall parts is high, a large amount of materials are saved, and equipment investment is saved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a sulfur-containing process gas-wet desulfurization device and process. Background technique [0002] In the industrial production systems of petrochemical, natural gas chemical and coal chemical industries, sulfur-containing process gas mainly exists in chemical units such as natural gas (including biogas) chemical industry, petroleum refining hydrogenation unit, and coal chemical coal tar hydrogenation unit. contain a high concentration of H 2 S and other sulfur-containing process gases. According to technical requirements for sulfur recovery and environmental protection, it is necessary to 2 S is purified and the sulfur is recycled. [0003] Especially for the coal chemical industry, the sulfur-containing process gas produced by the sour water stripping of the dehydrogenation tower in the coal tar hydrogenation unit, the sulfur-containing process gas generated by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52B01D53/78B01D53/86B01D53/96
CPCB01D53/52B01D53/78B01D53/96B01D53/8612
Inventor 王安华王乐张礼军景建龙高德辉陈理朱代希余兰金郑勇
Owner 四川省达科特能源科技股份有限公司
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