Method for separating and purifying hydrogen gas from dry gas of refining gas tank

A refining and chemical gas separation technology, applied in separation methods, chemical instruments and methods, dispersion particle separation, etc., can solve problems such as waste of resources, environment, pollution, etc., and achieve significant economic benefits

Active Publication Date: 2019-01-29
海南凯美特气体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the current domestic technical problems of direct combustion and discharge of refinery tail gas, resulting

Method used

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  • Method for separating and purifying hydrogen gas from dry gas of refining gas tank
  • Method for separating and purifying hydrogen gas from dry gas of refining gas tank
  • Method for separating and purifying hydrogen gas from dry gas of refining gas tank

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Embodiment Construction

[0019] The specific implementation of the method for separating and purifying hydrogen from the dry gas of the refinery gas cabinet of the present invention will be described in detail below with reference to the accompanying drawings. The characteristics and advantages of the method for separating and purifying hydrogen from the dry gas of the refinery gas cabinet of the present invention will become more obvious.

[0020] The raw gas is the recovered dry gas from the refinery gas cabinet:

[0021] Component

H 2

CH 4

C2

C3

C4

C5+

N 2

CO

CO 2

∑

Content (V%)

40

15

13.5

7.8

3.30

4.10

14.5

0.21

1.0

99.4

[0022] The raw material gas contains 0.60 (V%) hydrogen sulfide, which is less than 20 ppm after desulfurization.

[0023] Pressure: about 0.42MPa.

[0024] Temperature: ≤40°C.

[0025] See attached figure 1 , the method for separating and purifying hydrogen from the dry gas of the refi...

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Abstract

The invention discloses a method for separating and purifying hydrogen gas from recovered dry gas of a refining gas tank. According to the method, a three-stage pressure-swing-adsorption gas separation device is provided, and a three-stage pressure-swing-adsorption process is adopted. By adopting the method, fuel gas with high calorific value and hydrogen gas can be separated and purified from therecovered dry gas of the refining gas tank, the recovered dry gas of the refining gas tank can be thoroughly utilized, and great economic benefits are obtained.

Description

technical field [0001] The invention relates to waste gas treatment, in particular to a method for separating and purifying hydrogen from the dry gas of a refinery gas cabinet. Background technique [0002] At present, because domestic refineries do not pay enough attention to the utilization of tail gas, most of the tail gas is burned and discharged through the flare pipe network, and the combustion generates CO 2 、H 2 O, SO 2 and a small amount of unburned H 2 S, the main pollutant emitted is SO 2 and unburned H 2 S, on the one hand, it has caused a certain degree of waste of resources, and on the other hand, it has caused environmental pollution. Contents of the invention [0003] The invention aims to solve the technical problem of waste of resources and environmental pollution caused by direct combustion and discharge of refinery tail gas in China at present, and provides a method for separating and purifying hydrogen from dry gas of a refinery gas cabinet. [0...

Claims

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Application Information

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IPC IPC(8): B01D53/047
CPCB01D53/047B01D2257/108B01D2257/7025Y02C20/20
Inventor 陈逊吴永林
Owner 海南凯美特气体有限公司
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