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Separation and purification of CO from refinery hydrogen production tail gas 2 、ch 4 , co and h 2 Methods

A gas separation and tail gas technology, applied in the fields of carbon monoxide and hydrogen, separation and purification of carbon dioxide and methane, can solve the problem of not being purified and recovered, and achieve great social benefits and reduce pollution.

Active Publication Date: 2017-01-11
海南凯美特气体有限公司
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Problems solved by technology

The above-mentioned U.S. patent extracts only hydrogen from the raw material gas of the gas mixture mainly containing hydrogen, carbon dioxide, methane and carbon monoxide, and the carbon dioxide, methane and carbon monoxide contained in the raw gas of the gas mixture mainly containing hydrogen, carbon dioxide, methane and carbon monoxide have not been purified and recovered

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  • Separation and purification of CO from refinery hydrogen production tail gas <sub>2</sub> 、ch <sub>4</sub> , co and h <sub>2</sub> Methods
  • Separation and purification of CO from refinery hydrogen production tail gas <sub>2</sub> 、ch <sub>4</sub> , co and h <sub>2</sub> Methods
  • Separation and purification of CO from refinery hydrogen production tail gas <sub>2</sub> 、ch <sub>4</sub> , co and h <sub>2</sub> Methods

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Embodiment Construction

[0021] The specific embodiment of the method for separating and purifying carbon dioxide, methane, carbon monoxide and hydrogen from refinery hydrogen production tail gas of the present invention will be described in detail below with reference to the accompanying drawings. The features and advantages of the method with hydrogen will become more apparent.

[0022] The raw material gas is refining hydrogen production tail gas:

[0023] (1) Components and their contents:

[0024]

[0025] (2) Temperature: ≤40°C

[0026] (3) Pressure: 0.03MPa (gauge pressure, the same below)

[0027] see figure 1 , the method for separating and purifying carbon dioxide, methane, carbon monoxide and hydrogen from refinery hydrogen production tail gas of the present invention adopts a five-stage pressure swing adsorption (PSA) gas separation device:

[0028] The first stage of pressure swing adsorption (PSA-1) gas separation device 100, the second stage of pressure swing adsorption (PSA-2) g...

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Abstract

The invention provides a method for separating and purifying carbon dioxide, methane, carbon monoxide and hydrogen from a refining hydrogen production tail gas by adopting a five-stage pressure swing adsorption gas separation process. By adopting the method, the refining hydrogen production tail gas is fully used, a significant economic benefit can be obtained, the pollution of the refining hydrogen production tail gas to the environment is reduced, and an extremely great social benefit is obtained.

Description

technical field [0001] The present invention generally relates to the separation of gas mixtures, and in particular relates to a method for separating and purifying carbon dioxide, methane, carbon monoxide and hydrogen from refinery hydrogen production tail gas. Background technique [0002] US Patent No. 3,564,816 discloses a secondary pressure swing adsorption process using four adsorption beds, which is used to extract hydrogen from a raw material gas mainly containing hydrogen and water, carbon dioxide, methane, carbon monoxide and other gas mixtures. U.S. Patent No. 3,986,849 discloses a three-time equal pressure swing adsorption process using ten adsorption beds, which is used to extract hydrogen from a feed gas mainly containing 69.22 (volume)% hydrogen and 20.92 (volume)% carbon dioxide, such as from naphtha Separation of hydrogen from steam reformed gas. The above-mentioned U.S. patent extracts only hydrogen from the raw material gas of the gas mixture mainly conta...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/047C07C9/04C07C7/12C01B31/20C01B31/18C01B3/56C01B32/40C01B32/50
CPCY02C20/40Y02P20/151
Inventor 祝恩福张晓辉常纪良
Owner 海南凯美特气体有限公司