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Method for separating and purifying hydrogen from refinery tail gas

A technology from refinery and gas separation, applied in separation methods, hydrogen separation, dispersed particle separation, etc., can solve the problems of waste of resources, environment, pollution, etc., and achieve the effect of reducing pollution and great social benefits

Active Publication Date: 2019-03-22
ANQING KAIMEITE GAS CO LTD
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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 directly burning and discharging refinery tail gas, resulting in waste of resources and environmental pollution, and provides a method for separating and purifying hydrogen from refinery tail gas

Method used

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  • Method for separating and purifying hydrogen from refinery tail gas
  • Method for separating and purifying hydrogen from refinery tail gas
  • Method for separating and purifying hydrogen from refinery tail gas

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Embodiment Construction

[0027] A kind of method for separating and purifying hydrogen from refinery tail gas of the present invention will be described in detail below with reference to the accompanying drawings, and the characteristics and advantages of a method for separating and purifying hydrogen from refinery tail gas of the present invention will become more obvious.

[0028] Feed gas is recovered refinery off-gas:

[0029]

[0030] The raw material gas contains 0.03 (V%) hydrogen sulfide, which is less than 20 ppm after desulfurization.

[0031] Pressure: about 0.45MPa.

[0032] Temperature: ≤40°C.

[0033] see figure 1 , the method for separating and purifying hydrogen from refinery tail gas of the present invention adopts one section of temperature swing adsorption (TSA) gas separation device to add four sections of pressure swing adsorption (PSA) gas separation device:

[0034] A temperature swing adsorption (TSA) gas separation device 10, a first pressure swing adsorption (PSA-1) ga...

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Abstract

The invention discloses a method for separating and purifying hydrogen from refinery tail gas. According to the method, a one-segment temperature swing adsorption gas separation device and a four-segment pressure swing adsorption gas separation device are provided, and a one-segment temperature swing adsorption process and a four-segment pressure swing adsorption process are adopted. By adopting the method, high-thermal-value fuel gas and the hydrogen can be separated and purified form the refinery tail gas, so that the refinery tail gas is utilized fully, great economical benefit is achieved,environmental pollution caused by the refinery tail gas is lowered, and great social benefit is achieved.

Description

technical field [0001] The invention relates to waste gas treatment, in particular to a method for separating and purifying hydrogen from refinery vent air. 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 current domestic technical problems of directly burning and discharging refinery tail gas, resulting in waste of resources and environmental pollution, and provides a method for separating and purifying hydrogen from refinery tail gas. [0004] The method for separating and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/50B01D53/047B01D53/04C10G70/04
CPCB01D53/0462B01D53/047B01D2256/16C01B3/50C01B3/508C01B2203/042C10G70/04C10G70/046
Inventor 朱飞
Owner ANQING KAIMEITE GAS CO LTD
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