Radial adsorption tower and adsorption process

An adsorption tower and adsorbent technology, which is used in the field of petrochemical gas adsorption and separation, can solve the problems of affecting the performance of the adsorbent, gas phase entrainment and incomplete desorption of the adsorbent.
CN112742171AActive Publication Date: 2021-05-04CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2021-05-04

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Abstract

The invention discloses a radial adsorption tower. The adsorption tower comprises a tower body, an internal central pipe, a metal wire mesh rolling column and a cross section panel, the central pipe extends into the tower body from a quadrant point of an upper seal head or a lower seal head of the tower body and is fixed on a cross section panel of a tangent line of the lower part or the upper part in the tower body, and a check valve is arranged on the inner side of a tail end pipe of the extending end of the central pipe; a plurality of ventilation channels are formed in the central pipe, and the central pipe is wrapped with a metal wire mesh which is integrally fixed with a pipe body of the central pipe; and the metal wire mesh rolling column is a cylinder formed by rolling a metal wire mesh with the surface coated with an adsorbent coating. The pressure of the adsorption tower is reduced, the volume utilization rate of the tower is improved, and the influence of feeding fluctuation on an adsorbent bed layer and the quality and flow of product gas is reduced. The problems that in the prior art, the gas velocity change affects the performance of the adsorbent, and gas phase entrainment and adsorbent desorption are not thorough are solved, and the better adsorption effect is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of petrochemical gas adsorption and separation, and relates to an adsorption tower and an adsorbent filling technology.

[0002] technical background

[0003] The pressure swing adsorption method is based on the intermolecular van der Waals force, through the operation of boosting adsorption and depressurizing desorption to achieve the purpose of purifying low-concentration hydrogen. Due to its simple process and convenient operation, it has been widely used in the fields of hydrogen purification, oxygen production, nitrogen production, and recovery of high-value organic hydrocarbons. For example, the publication number CN 108939820 A is a vacuum pressure swing adsorption oxygen production system and method, and CN 109053352 A is a method for extracting n-heptane and co-producing n-octane by pressure swing adsorption.

[0004] In order to improve the overall efficiency of pressure swing adsorption, the key i...

Claims

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