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Gas treatment method, device and application

A gas treatment and gas technology, which is used in combustible gas purification, combustible gas purification/transformation, condensed non-gaseous material gas purification, etc. It can solve the problems of large measurement distortion, inability of long-term stable operation of the analyzer, and short service cycle. To achieve the effect of increasing the contact area

Active Publication Date: 2010-07-14
宁波大通永维机电工程有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The traditional method of tar removal is to wash with kerosene, diesel, water and other liquids, but there are problems in the process of use, such as environmental pollution, volatile washing liquid, unsafe operation, short service life, and hydrogen sulfide soluble in water. The effect is not ideal, the analyzer cannot run stably for a long time, and the measurement distortion is large

Method used

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  • Gas treatment method, device and application
  • Gas treatment method, device and application
  • Gas treatment method, device and application

Examples

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Effect test

Embodiment 1

[0041] Such as figure 1 As shown, a gas processing device is used in the coal chemical industry, specifically to treat coke oven gas, so that the H in coke oven gas can be analyzed online. 2 S content, coke oven gas contains tar and hydrogen sulfide. The gas treatment device includes:

[0042] The sealed tank body 11 is made of glass, and phosphoric acid solution is housed in the tank body, and the concentration of phosphoric acid is 80%;

[0043] Intake pipe 12, the position of one open end thereof is lower than the liquid level of phosphoric acid solution; Intake pipe 12 adopts the material that does not adsorb hydrogen sulfide, such as Teflon. The coke oven gas enters the phosphoric acid solution through the inlet pipe 12 and rises in the form of bubbles. During the rising process, the high-concentration phosphoric acid reacts with the tar in the gas to remove the tar in the gas; at the same time, there is no gap between concentrated phosphoric acid and hydrogen sulfide. ...

Embodiment 2

[0050] Such as figure 2 As shown, a gas processing device is used in the coal chemical industry, specifically to treat coke oven gas, so that the H in coke oven gas can be analyzed online. 2 S content, coke oven gas contains tar and hydrogen sulfide. The difference with embodiment 1 is:

[0051] 1. The concentration of phosphoric acid is 85%;

[0052] 2. One end of the inlet pipe 12 is connected to the tank 11 containing phosphoric acid solution, and the other end is connected to the condensing device 62 through the valve 66. The condensing device 62 is connected to the purge gas source 61 through the gas pipeline 65 and the valve 63. The purge gas source provides For gases that do not interact with hydrogen sulfide and phosphoric acid, such as nitrogen, a heating device is provided on the gas pipeline 65; the substance in the condensing device 62 is discharged through the pipeline, and a valve 67 is provided on the pipeline. When the coke oven gas passes through the conde...

Embodiment 3

[0061] Such as image 3 As shown, a gas processing device is used in the iron and steel field, specifically to treat coke oven gas, so that the H in coke oven gas can be analyzed online. 2 S content, coke oven gas contains tar and hydrogen sulfide. The difference with embodiment 2 is:

[0062] 1. The concentration of phosphoric acid in the tank body 11 is 88%;

[0063] 2. A heating device is also installed on the gas source 61. The gas pipeline downstream of the valve 63 is divided into two parts, one part is connected to the pipeline between the valve 64 and the condensing device 62, and the other part is connected to the pipeline between the valve 66 and the condensing device 62;

[0064] 3. The second tank body 21 is also provided with an air intake pipe 22 and an exhaust port 23, and a broken foam net 24 is set in the tank body 21. The concentration of phosphoric acid in the tank body 21 is 94%, and the tank body 11 The exhaust port 13 communicates with the intake pipe ...

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Abstract

The invention relates to a gas treatment method. The method is specifically that: gas is pumped into phosphoric acid solution and the concentration of phosphoric acid is no less than 80 percent; the gas acts with the phosphoric acid solution, tar in the gas is removed and hydrogen sulfide in the gas is reserved; and the gas exhausted from the phosphoric acid solution is led out. The invention additionally discloses a gas treatment device for realizing the method. The invention has the advantages that the tar removal efficiency is high, the structure is simple, no impact is caused to the hydrogen sulfide in the gas and the device can be widely used in the metallurgical field, the chemical field and the like.

Description

technical field [0001] The invention relates to gas pretreatment, in particular to a treatment method, device and application of gas containing hydrogen sulfide and tar. Background technique [0002] In the fields of iron and steel and chemical industry, coking refers to heating coal to about 1000°C in the coking oven without air, and the coal is coked and decomposed into gaseous substances (coke oven gas) and solid substances (coke). Sexual products are referred to as crude gas. Coke oven gas can be obtained from crude gas after tar removal and ammonia removal and debenzene naphthalene removal. Coke oven gas is mainly used as factory fuel, because of the H 2 S produces SO during combustion 2 , pollute the environment, so it is necessary to desulfurize the coke oven gas, so it is necessary to install an online H2S content analyzer at the back end of the coke oven gas desulfurization tower. The main composition of coke oven gas after desulfurization is: O 2 : 0-3%, H 2 :...

Claims

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Application Information

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IPC IPC(8): C10K1/10C10K1/04
Inventor 郭健平陈生龙李鹰蒲保全王健
Owner 宁波大通永维机电工程有限公司
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