Natural gas catalytic desulfurization purification device and process

A purification device and catalytic desulfurization technology, which is applied in the direction of combined devices, gas fuel, gas treatment, etc., and can solve problems such as removal

Pending Publication Date: 2021-08-31
ANHUI WEIDA ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

[0004] The technical problem solved by the present invention is to remove sulfides in raw natural gas, especially organic sulfur, by catalytic purification. According to the configuration of conventional natural gas purification process, the problem of sulfide removal in raw natural gas is solved, and natural gas catalytic desulfurization purification is set The device and process can effectively remove sulfide in natural gas, so that the net natural gas purified by the device and process of the present invention can meet the national standard GB17820-2018 for the content of sulfide in natural gas, that is, H 2 S≤6mg / m 3 , total sulfide (calculated as S element) ≤ 20mg / m 3

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  • Natural gas catalytic desulfurization purification device and process

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Embodiment Construction

[0023] A catalytic desulfurization purification device for natural gas, comprising a gravity separator 2, a filter separator 3, a primary fine desulfurization device, a heat exchange device 8, a heating device 10, a catalytic conversion device 14, a secondary fine desulfurization device, and a dust filter 18, Valves, air source (connection) pipes.

[0024] The raw natural gas is transported by the pressurization station, and the gravity separator 2 removes impurities, and the filter separator 3 removes hydrocarbon liquid and moisture. 2 S, after being preheated by the heat exchange device 8, the heater (heating device 10) is heated to an appropriate reaction temperature, enters the catalytic conversion device 14, and organic sulfur, especially COS, CS 2 , mercaptan, thioether and other sulfides are converted into H 2 S form, after cooling through the heat exchange device 8 again, enter the secondary fine desulfurization device to remove the conversion product H 2 S, the natu...

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Abstract

The invention relates to a natural gas catalytic desulfurization and purification device and process. The device comprises a gravity separator, a filter separator, a primary fine desulfurization device and a heat exchange device which are arranged in sequence, the top of the heat exchange device is connected with a secondary fine desulfurization device, the middle of the heat exchange device is connected with a heating device, the heating device is connected with the top of a catalytic conversion device, the bottom of the heat exchange device is connected with the bottom of the catalytic conversion device, and the bottom of the secondary fine desulfurization device is connected with a dust filter.

Description

technical field [0001] The invention belongs to the technical field of natural gas desulfurization and purification, and in particular relates to a natural gas catalytic desulfurization purification device and process. Background technique [0002] As a clean energy with abundant reserves, natural gas feedstock gas contains a small amount of sulfide, represented by H 2 S-based, organic sulfur COS, CS 2 , mercaptans, sulfides and other components exist in some raw natural gas, even more than H 2 The content of S, the raw natural gas needs to remove most of the sulfides, so as to meet the emission standards of sulfur dioxide in the flue gas after combustion, and the natural gas containing a small amount of sulfides will also cause corrosion to pipelines and storage devices during the transportation process. my country's latest national standard GB17820 - In 2018, it is stipulated that H in natural gas 2 S content less than (or) equal to 6mg / m 3 , the total sulfide (calculat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/48B01D53/04B01D50/00C10L3/10
CPCB01D53/8603B01D53/8606B01D53/04C10L3/103B01D2257/306B01D2257/308B01D2253/102B01D2253/116B01D2253/1124B01D2255/10B01D2255/202B01D2255/204B01D2257/304B01D50/20
Inventor 王一臻黄乃金吴昊解彬
Owner ANHUI WEIDA ENVIRONMENTAL PROTECTION TECH
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