Adsorption type high pressure natural gas dehydration process and device

A dehydration device and natural gas technology, applied in the direction of gas fuel, petroleum industry, dispersed particle separation, etc., can solve the problems of poor cooling and separation effect, high cost of explosion-proof motor, large cooling water consumption, etc., to achieve good cooling effect and avoid high and low The effect of alternating temperature and saving electric energy

Inactive Publication Date: 2010-12-01
XIAN UNIONFILTER PURIFICATION EQUIP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] When air cooling is used, a cooling fan must be used, and a heat exchanger with a large heat exchange area is required. The cooling effect is easily affected by the ambient temperature. When the ambient temperature is high, the cooling separation effect is very poor, and the motor used by the fan It must be an explosion-proof motor, and the cost of the explosion-proof motor is relatively high, which increases the cost of the entire system
[0006] When using water cooling, it needs to consume a lot of cooling water, so it will not work in deserts and other water-scarce environments; even if the equipment is located in an area with sufficient water sources, related equipment and funds still need to be invested in the treatment and recovery of cooling water, which not only improves The cost of the product is reduced, and it is easy to cause pollution to the environment

Method used

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  • Adsorption type high pressure natural gas dehydration process and device
  • Adsorption type high pressure natural gas dehydration process and device

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Embodiment Construction

[0037] The present invention is described in detail below in conjunction with accompanying drawing:

[0038] The adsorption type high-pressure natural gas dehydration process of the present invention comprises the following steps:

[0039] (1) Adsorption

[0040] (1.1) Filtration and separation of the free liquid contained in the raw gas;

[0041] (1.2) introducing the gas obtained after the treatment of step (1.1) into the tower for adsorption and drying;

[0042] (1.3) filtering the gas obtained after the treatment in step (1.2) to separate the solid dust particles in the gas;

[0043] (1.4) Part of the gas obtained after the treatment in step (1.3) is introduced into the gas utilization system, and the other part is introduced into the step (2) for regeneration;

[0044] (2) regeneration

[0045] (2.1) decompressing the gas introduced through step (1.4) to obtain low-temperature and low-pressure dry gas;

[0046] (2.2) The low-temperature, low-pressure drying gas and t...

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Abstract

The invention provides an adsorption type high pressure natural gas dehydration process and a device, and the Joule-Thomson effect is utilized for converting the pressure loss during the process of reducing the pressure of high pressure natural gas into cold energy of low-temperature gas flow, thereby carrying out heat exchange on the cold gas flow and hot gas flow, cooling the hot gas flow, increasing the temperature of the cold gas flow, effectively reducing the energy loss, simplifying equipment and saving energy. The method comprises three steps of adsorption, regeneration and switching, and the device increases a pressure reducing valve and a heat exchanger for treatment of finished product gas, thereby not using a cooling fan during the cooling process, saving electrical energy, avoiding troubles caused by explosion prevention of a motor and being safe and energy-saving.

Description

technical field [0001] The invention relates to a natural gas dehydration process and device, in particular to an adsorption-type high-pressure natural gas dehydration process and device. Background technique [0002] At present, the adsorption-type natural gas dehydration device usually adopts a double-tower structure, and its working principle is: when one tower is performing dehydration and adsorption work, the other tower is performing adsorbent regeneration. The tower for dehydration adsorption uses the adsorbent in the tower to absorb the moisture contained in the raw gas, thereby drying the raw gas; the tower for regeneration of the adsorbent generally directly enters the natural gas used as regeneration gas into the heater and heats it to After the temperature required for regeneration, it enters the tower, flows through the adsorbent bed, heats the adsorbent, and desorbs the moisture adsorbed by the adsorbent, so as to achieve the purpose of adsorbent regeneration. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10B01D53/26
Inventor 李大明张志全吉军
Owner XIAN UNIONFILTER PURIFICATION EQUIP
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