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Skid-mounted LNG deacidification device and method thereof

A skid-mounted deacidification technology, applied in the energy field, can solve problems such as difficult equipment maintenance and repair, high production configuration costs, complex structure of deacidification devices, etc., to achieve the effect of convenient skid installation, cost reduction and investment reduction

Pending Publication Date: 2021-12-17
四川蜀道装备科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a skid-mounted LNG deacidification device and method to solve the technical problems in the prior art that the structure of the deacidification device is complex, the cost of production configuration is high, and the maintenance and repair of the equipment is not easy in the later stage

Method used

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  • Skid-mounted LNG deacidification device and method thereof
  • Skid-mounted LNG deacidification device and method thereof
  • Skid-mounted LNG deacidification device and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 Shown:

[0036] The present invention provides a skid-mounted LNG deacidification device, which includes a combined absorption tower 100, a combined regeneration tower 200, a lean-rich amine heat exchanger 313, a lean amine cooler 304, an amine storage tank 300, and a lean amine pump 302;

[0037] Described combined absorption tower 100 is provided with cooling chamber one 103, separation chamber one 102 and absorption chamber 101 successively from top to bottom, and the top of described absorption chamber 101 is also provided with liquid distributor one 115, and described absorption chamber 101 and cooling Chamber one 103 is connected by steam pipeline one 112, said cooling chamber one 103 and separation chamber one 102 are connected by passage of cooling pipe, and the bottom of said separation chamber one 102 is provided with liquid distributor one 115. Flooding pipe one 114; the bottom end of the absorption chamber 101 of the combined absorption tow...

Embodiment 2

[0050] Such as figure 2 Shown:

[0051] The present invention provides a skid-mounted LNG deacidification device. Compared with Embodiment 1, the cooling chamber-103 and the separation chamber-102 of the combined absorption tower 100 of Embodiment 2 are combined, and the combined cooling chamber-103 and the separation chamber one 102 can be separately arranged outside the absorption chamber 101, and have the same height as the top of the absorption chamber 101; the steam pipeline one 112 communicates with the cooling chamber one 103 and the absorption chamber 101, and the said flooding pipe one 114 connects the separation chamber one 102 and the bottom of combined absorption tower 100.

[0052] The second cooling chamber 203 and the second separation chamber 202 of the combined regeneration tower 200 are arranged in combination, and the combined cooling chamber two 203 and the second separation chamber 202 can be separately arranged outside the absorption chamber 101 and hav...

Embodiment 3

[0055] Such as image 3 Shown:

[0056] The present invention provides a skid-mounted LNG deacidification device. Compared with Example 2, in Example 3, the return pipeline 321 and the pipeline filter 1 323, lean amine filter 324, and pipeline filtration The second device 325 is installed on the pipeline between the lean amine cooler 304 and the lean amine liquid inlet pipe 308.

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Abstract

The invention discloses a skid-mounted LNG deacidification device and a method thereof. The technical problems that a deacidification device in the prior art is complicated in structure, high in production configuration cost and difficult to maintain and overhaul in the later period are solved. The device comprises a combined absorption tower (100), a combined regeneration tower (200), a lean and rich amine heat exchanger (313), a lean amine cooler (304), an amine storage tank (300) and a lean amine pump (302), the combined absorption tower (100) is sequentially provided with a cooling chamber I (103), a separation chamber I (102) and an absorption chamber (101) from top to bottom, and the top end of the absorption chamber (101) is also provided with a liquid distributor I (115). According to the skid-mounted LNG deacidification device and the method provided by the invention, the number of equipment, pipelines and valves is reduced through the conveniently skid-mounted or modularized deacidification device and the combination of the equipment, the investment of a deacidification system is reduced, and the same deacidification effect and purification index can be achieved.

Description

technical field [0001] The invention belongs to the technical field of energy, and in particular relates to a skid-mounted LNG deacidification device and method. Background technique [0002] Natural gas, whose main component is methane, produces only carbon dioxide and water molecules after full combustion. It is recognized as the cleanest fossil energy on earth. Liquefied Natural Gas (LNG for short) is a liquid condensed from natural gas after purification, cooling, and subcooling to -162°C, and is stored in a 0.1MPa cryogenic storage tank. The processed LNG has the advantages of colorless, odorless, non-toxic and non-corrosive. Its volume is about 1 / 625 of the same volume of gaseous natural gas, and the quality of liquefied natural gas is only about 45% of the same volume of water, which greatly saves Energy storage space. [0003] However, before the natural gas is liquefied at low temperature to obtain LNG, the natural gas produced in the gas field needs to be purifie...

Claims

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Application Information

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IPC IPC(8): B01D53/18B01D53/14B01D35/02B01D29/56B01D53/00C10L3/10F25D17/02F25D1/02
CPCB01D53/18B01D53/1456B01D35/02B01D29/56B01D53/002C10L3/102F25D17/02F25D1/02
Inventor 文向南蔡以勇王元宏陈丽英
Owner 四川蜀道装备科技股份有限公司
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