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A hydrogen sulfide removal system and desulfurization method

A hydrogen sulfide removal technology, applied in the field of desulfurization, can solve the problem of not being able to directly demonstrate the dynamic removal capacity of hydrogen sulfide gas, and achieve the effects of high utilization rate, high chemical stability and improved utilization rate

Active Publication Date: 2020-08-14
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current research work focuses on the physical solubility of ionic liquids for acid gases such as hydrogen sulfide or carbon dioxide, and is carried out under high-pressure static conditions. In addition to the ability

Method used

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  • A hydrogen sulfide removal system and desulfurization method
  • A hydrogen sulfide removal system and desulfurization method
  • A hydrogen sulfide removal system and desulfurization method

Examples

Experimental program
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Effect test

Embodiment 1

[0040] (1) Take commercially available white carbon black (McLean), grind it with a mortar, sieve it to 280-300 mesh, wash it with water 5 times until the supernatant is free of turbidity, and dry it at 130°C for 4 hours.

[0041] (2) Take 20 g (99%) of anhydrous copper chloride and 20 g (99%) of anhydrous triethylamine hydrochloride, mix them into a pear-shaped flask, and stopper the air. Under the condition of magnetic stirring at 20r / min, heat at 90°C for 12h.

[0042] (3) Add 110 g of absolute ethanol (AR) to the dark green viscous liquid obtained in step (2), and use a power of 130 W to sonicate for 8 minutes to obtain a uniform green solution.

[0043] (4) Add 210 g of the white carbon black obtained in step (1) to the ethanol solution of copper chloride-triethylamine hydrochloride obtained in step (3), shake for 5 seconds, and use 130W ultrasonic treatment for 10 minutes to impregnate evenly.

[0044] (5) The yellow-green mixture obtained in (4) was dried under vacuum ...

Embodiment 2

[0047] (1) Take commercially available white carbon black, grind it, and sieve it to 280-300 mesh. Rinse the sieved white carbon black with water for 4-6 times until the supernatant is free of turbidity, and dry at 150° C. for 5.5 hours.

[0048] (2) Take 5 g of anhydrous copper bromide (99%) and 5 g of anhydrous triethylamine hydrochloride (99%), and mix them into a three-necked flask. One of the necks is plugged to isolate the air, and the other two necks are ventilated with nitrogen to for protection. Under the condition of 22r / min magnetic stirring, heat at 110°C for 14h.

[0049] (3) Add 25 g of absolute ethanol (AR) to the viscous liquid obtained in step (2), and use a power of 120 W to sonicate for 8 minutes to obtain a homogeneous solution.

[0050] (4) Add 50 g of the white carbon black obtained in step (1) to the ethanol solution of copper bromide-triethylamine hydrochloride obtained in step (3), shake for 5 seconds, and use 120W ultrasonic treatment for 8 minutes....

Embodiment 3

[0054] (1) Take commercially available white carbon black (McLean), grind it with a mortar, sieve it to 280-300 mesh, wash it with water 5 times until the supernatant is free of turbidity, and dry it at 130°C for 4 hours.

[0055] (2) Take 20 g (99%) of anhydrous copper chloride and 20 g (99%) of anhydrous triethylamine hydrobromide, mix them into a pear-shaped flask, and protect with nitrogen. Under the condition of magnetic stirring at 20r / min, heat at 90°C for 12h.

[0056] (3) Add 110 g of absolute ethanol (AR) to the viscous liquid obtained in step (2), and use a power of 120 W to sonicate for 8 minutes to obtain a homogeneous solution.

[0057] (4) Add 210 g of the white carbon black obtained in step (1) to the ethanol solution of copper chloride-triethylamine hydrobromide obtained in step (3), shake for 5 seconds, and use 130W ultrasonic treatment for 8 minutes to impregnate evenly.

[0058] (5) The mixture obtained in (4) was dried under vacuum condition with a rotary...

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Abstract

The invention relates to an adsorption system for removing hydrogen sulfide from refined gas. The adsorption system comprises a gas conveying pipeline, a hydrogen sulfide gas flow meter, a dry-processdesulphurization device, an adsorbent regeneration system and a hydrogen sulfide detection instrument, wherein sulfur-containing gas sequentially flows through the gas conveying pipeline, the hydrogen sulfide gas flow meter, the dry-process desulphurization device and the adsorbent regeneration system, and the hydrogen sulfide detection instrument is located at an outlet. A desulfurizer disclosedby the invention is applicable to a solid powder type desulfurizing agent, and the concentration of hydrogen sulfide in the sulfur-containing gas can be decreased from 4000ppm-10000ppm to 3ppm or below so as to meet the deep removal requirement of hydrogen sulfide. Cheap and easily available white carbon black is loaded with ironic liquid, and the esulfurizing agent has a good regeneration property, so that the operation cost of a whole desulfurizing system is lowered, and the sulfur resource is easily recycled.

Description

technical field [0001] The invention relates to a system and a desulfurization method for removing hydrogen sulfide, belonging to the technical field of desulfurization. Background technique [0002] Natural gas is an efficient and clean energy and an important chemical raw material. It is clean, economical, convenient to transport and widely used. It has become the best choice for countries all over the world to improve the environment and promote sustainable economic development. Its main component is methane, and it also contains carbon dioxide, alkanes, hydrogen sulfide, etc. h 2 S is a harmful impurity, which not only causes corrosion to transportation pipelines and equipment, affects subsequent processing, but also seriously threatens personal safety. It is one of the environmental pollutants that must be controlled. At present, desulfurization technologies mainly include wet desulfurization and dry desulfurization. Among them, wet desulfurization is represented by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14
CPCB01J20/16B01J20/3225C10L3/103
Inventor 臧立华马云倩毛家明
Owner QILU UNIV OF TECH
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