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High-efficiency hydrogen sulfide gas absorption device

A gas absorption and hydrogen sulfide technology, applied in gas treatment, combined devices, chemical recovery, etc., can solve the problems of multiple components, high operating costs, and large equipment, and achieve the effects of easy integration, high desulfurization efficiency, and complete regeneration

Inactive Publication Date: 2016-09-21
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing technologies have large differences in device composition, equipment and processes, and there are problems such as large-scale equipment, many components, complex processes, large pressure drop, high energy consumption, and high operating costs.

Method used

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  • High-efficiency hydrogen sulfide gas absorption device
  • High-efficiency hydrogen sulfide gas absorption device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Removal of hydrogen sulfide from industrial gas: the gas volume to be treated in the process is 15000m 3 / h, hydrogen sulfide content is 1600mg / m 3 , to prepare 140 m of desulfurization adsorption solution 3 .

[0051] Turn on the device, and after the device stabilizes (about 5 minutes), turn on the circulation pump and adjust the liquid volume to 100m 3 / h, after the liquid phase runs stably, open the gas phase, and gradually reach 15000m through the regulating valve 3 / h. The gas and liquid are absorbed in the device under the conditions of high turbulence, strong mixing, and extremely fast interface renewal. After the entire system is stabilized, the hydrogen sulfide content can be detected at the gas inlet and outlet.

[0052] Technical effect: Due to the use of swirling jet adsorbers to recover hydrogen sulfide, the efficiency of each stage is above 99%, and the overall efficiency is above 95%, which greatly improves the hydrogen sulfide removal effect and pro...

Embodiment 2

[0054] Remove hydrogen sulfide in natural gas, the volume of natural gas is 15000m 3 / h, the hydrogen sulfide concentration is 2400mg / m 3 .

[0055] Technical effect:

[0056] The operation process is as in Example 1. After the system is stabilized, the removal rate of hydrogen sulfide can reach more than 97%, and the outlet concentration of hydrogen sulfide is lower than 50mg / m 3 , compared with the traditional wet process, the equipment volume is less than 1 / 10 of the tower equipment, and the liquid circulation volume is reduced by 60%.

Embodiment 3

[0058] Selective absorption of hydrogen sulfide in acidic systems in industrial syngas (CO 2 The volume content accounts for 96.6%, the volume content of hydrogen sulfide accounts for 0.78%, and the concentration is 10.6g / m 3 ), the gas volume to be treated in the process is 28000m 3 / h, hydrogen sulfide content is 10200mg / m 3 . First prepare the desulfurization adsorption liquid, the liquid volume is 300 m 3 / h. According to the short residence time of the cyclone adsorber, the absorption of hydrogen sulfide by the desulfurization adsorption liquid is completed in an instant, thereby improving the selectivity of absorption, reducing side reactions, and reducing alkali consumption; after the system is stable, hydrogen sulfide is removed The rate can reach more than 94%, CO 2 Concentration import and export changes less than 0.3%

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Abstract

The invention relates to a high-efficiency hydrogen sulfide gas absorption device which mainly solves the problem about purification of hydrogen sulfide in industrial gas. The high-efficiency hydrogen sulfide gas absorption device comprises a swirl jet absorber, an integrated desorption and regeneration device and a circulating liquid pump, wherein the swirl jet absorber adopts single-stage or multistage connection and is provided with a mixed gas inlet, an absorption liquid inlet, a purified gas outlet and an absorption liquid outlet, and a one-way valve is connected to the bottom of the swirl jet absorber; the integrated desorption and regeneration device is provided with an air inlet, an elementary sulfur outlet, an absorption liquid outlet and a sampling port, and the absorption liquid outlet is connected with the circulating liquid pump; the circulating liquid pump conveys absorption liquid to the absorption liquid inlet of the swirl jet absorber, and a detection instrument and the one-way valve are connected to the inside of a pipeline. According to the high-efficiency hydrogen sulfide gas absorption device provided by the invention, the absorption efficiency of the hydrogen sulfide in the gas is improved, and the stability of the absorption device is enhanced.

Description

technical field [0001] The invention belongs to the field of petrochemical industry and environmental protection, relates to a hydrogen sulfide gas absorption device, and mainly solves the problem of hydrogen sulfide purification in industrial gas. Background technique [0002] h 2 S is a colorless irritating gas with a strong smell of rotten eggs, a polar molecule with a relative molecular mass of 34.08, an olfactory threshold of about 0.00041ppm, a relative density of 1.19 (air density is 1), and a melting point of -85.5°C , with a boiling point of -60.4°C, easily soluble in water and ethanol. [0003] In the process of natural gas purification and petroleum refining in my country's petrochemical industry, high concentrations of hydrogen sulfide are associated, and poisoning accidents caused by hydrogen sulfide gas leakage frequently occur in the petrochemical field. Once hydrogen sulfide leaks, it will seriously endanger the production safety of the device and the life ...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/86B01D53/52B01D53/96
CPCB01D5/0003B01D45/02B01D45/12B01D47/06B01D47/16B01D53/002B01D53/06B01D53/1406B01D53/1456B01D53/18B01D53/346B01D53/48B01D53/501B01D53/504B01D53/52B01D53/72B01D53/78B01D53/8612B01D53/96F23G7/06F28C3/08C10K1/00C10K1/002C10K1/004C10K1/06C10K1/101C01B17/05C01C1/12B01J38/00B01D2251/304B01D2251/2062B01D2252/102B01D2252/103B01D2257/306B01D2257/406B01D2257/2045B01D2257/708B01D2257/7027B01D2259/124B01D2258/0291B01D2258/0283B01D50/40Y02P20/584Y02A50/20
Inventor 王依谋马良陈剑张革松李兵刘安林何梦雅
Owner EAST CHINA UNIV OF SCI & TECH
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