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Safe adsorption treatment device and method for hydrogen-containing purge gas

A technology of adsorption treatment and degassing, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve problems such as poor safety, and achieve the effects of preventing safety problems, good technical effects, safe and reliable control and operation methods

Active Publication Date: 2019-07-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the technical problems to be solved by the present invention is the problem of poor safety caused by the direct discharge of hydrogenated tail gas in the prior art. A new safe adsorption treatment device for hydrogen-containing degassing gas is provided, which has better safety advantage

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Embodiment 1

[0020] A safe adsorption treatment method for hydrogen-containing purge gas, such as figure 1 As shown, after the exhaust gas of the aromatics hydrogenation system is separated by the gas-liquid separator, the gas phase enters at least two adsorption processors through the discharge pipeline. Finally, it indicates that the adsorption is saturated, then switch to another adsorber; the adsorption processor is filled with adsorbent, and the adsorbent is a magnesium alloy.

[0021] The adsorption processor adopts a combined structure, and is equipped with an inlet head, an air outlet head and an adsorption module. Both the head and the adsorption module are of flange flange structure, and the required number of adsorption modules can be installed according to the needs. A gas composition monitoring analyzer is installed on the top of the gas-liquid separator. A flame arrester is installed on the outlet pipeline of the adsorption processor. The operating conditions of the adsorpt...

Embodiment 2

[0024] A safe adsorption treatment method for hydrogen-containing purge gas, such as figure 1 As shown, after the exhaust gas of the aromatics hydrogenation system is separated by the gas-liquid separator, the gas phase enters at least two adsorption processors through the discharge pipeline. Finally, it indicates that the adsorption is saturated, then switch to another adsorber; the adsorption processor is filled with adsorbent, and the adsorbent is nickel alloy.

[0025] The adsorption processor adopts a combined structure, and is equipped with an inlet head, an air outlet head and an adsorption module. Both the head and the adsorption module are of flange flange structure, and the required number of adsorption modules can be installed according to the needs. A gas composition monitoring analyzer is installed on the top of the gas-liquid separator. The operating conditions of the adsorption processor are temperature 20°C, pressure 0.2MPa, space velocity 500h -1 .

[0026]...

Embodiment 3

[0028] A safe adsorption treatment method for hydrogen-containing purge gas, such as figure 1 As shown, after the exhaust gas of the aromatics hydrogenation system is separated by the gas-liquid separator, the gas phase enters at least two adsorption processors through the discharge pipeline. Finally, it indicates that the adsorption is saturated, then switch to another adsorber; the adsorption processor is filled with adsorbent, and the adsorbent is titanium alloy.

[0029] The adsorption processor adopts a combined structure, and is equipped with an inlet head, an air outlet head and an adsorption module. Both the head and the adsorption module are of flange flange structure, and the required number of adsorption modules can be installed according to the needs. A gas composition monitoring analyzer is installed on the top of the gas-liquid separator. The operating conditions of the adsorption processor are temperature 40°C, pressure 0.5MPa, space velocity 600h -1 .

[003...

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Abstract

The invention relates to a safe adsorption treatment device and method for hydrogen-containing purge gas, and mainly solves the problem of poor safety caused by direct emission of hydrogenated tail gas in the prior art. According to the safe adsorption treatment device and method for the hydrogen-containing purge gas, after purge gas of an aromatic hydrogenation system is separated by a gas-liquidseparator, a gas phase enters at least two adsorption processors through discharge pipelines; a gas flow meter is arranged at an outlet pipeline of each adsorption processor to track the flow changeof tail gas; when the flow exceeds a control value, adsorption saturation is indicated, and the adsorption is switched to the other adsorption processor; the adsorption processors are filled with an adsorbent, and the adsorbent is magnesium, nickel, titanium alloy or a filling porous material. The technical scheme well solves the problem, and the device and method can be used for treating hydrogen-containing purge gas.

Description

technical field [0001] The invention relates to a safe adsorption treatment device and method for purge gas containing hydrogen. Background technique [0002] The hydrogenation process is a commonly used process type in chemical production. Most of them use hydrogen to participate in the reaction, which has a high risk. At the same time, the tail gas treatment after the reaction often contains hydrogen, which is also dangerous. Tail hydrogen in hydrocracking and other refining and chemical processes adopts a recycling mode, while small-scale chemical plants often discharge directly. With the improvement of safety and environmental protection requirements, it is urgent to propose a safe hydrogenation tail gas treatment technology. For example, in the hydrogen peroxide production process of anthraquinone method, a large amount of aromatic hydrocarbons and anthraquinone organic substances are used as the production medium of hydrogen peroxide. The first step of its production i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
CPCB01D53/04B01D2253/1122B01D2257/108
Inventor 张帆费轶贾学五王振刚刘静如石宁徐伟
Owner CHINA PETROLEUM & CHEM CORP
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