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Method for separating condensed liquid in gas mixture by low pressure common cooling process

A technology for separating gas and condensate, which is applied in refrigeration and liquefaction, liquefaction, solidification, etc., can solve the problems of complex structure, large footprint, and bulky equipment, achieve high separation accuracy, save floor space, and equipment little effect

Inactive Publication Date: 2007-09-26
XIAN UNIONFILTER PURIFICATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The invention solves the technical problems in the background technology that the equipment structure is complex and huge, the floor area is large, and professional personnel are required to operate

Method used

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  • Method for separating condensed liquid in gas mixture by low pressure common cooling process
  • Method for separating condensed liquid in gas mixture by low pressure common cooling process
  • Method for separating condensed liquid in gas mixture by low pressure common cooling process

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Embodiment Construction

[0034] Referring to Fig. 1 is the basic type of the present invention, which is applicable to various working conditions that require condensation and separation, such as natural gas dehydration and condensate recovery, organic vapor condensation recovery, pretreatment before membrane separation devices, etc. The method includes

[0035] 1). Separation, the gas to be treated enters the separator 1 through the inlet pipe 9 for rough separation, and the solid and liquid impurities of large particles in the gas are separated;

[0036] 2). Re-separation, the gas after rough separation is filtered through the pre-filter 2, and the solid impurities and free condensate are separated;

[0037] 3). Heat exchange cooling, the separated and filtered gas enters the precooling / heater 4 in the refrigerator 3, and is cooled by heat exchange with the cold air from the evaporator 5; the compressor 7 in the refrigerator 3 is Refrigeration Compressors;

[0038] 4).Condensation and liquefaction...

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Abstract

The method is as the follows: gas to be processed is rough separated first, then it is prefiltered, separated and filtered gas is introduced into freezer to carry on heat exchange with cold gas from evaporator for being cooled, heat exchanged gas is sent to evaporator of freezer for further cooling down to +2 degree C, condensed liquid nepheloid liquid microparticles generated by condensation liquefying is removed by utilizing filtering separator, gas is them introduced to precooling / heat regenerator to carry on heat exchange for temperature rising so produce is obtained and it is sent to later process through air exhaust tube of precooling / heat regenerator.

Description

technical field [0001] The invention relates to a method for separating condensate in a gas mixture by a low-pressure general cooling method. Background technique [0002] In the chemical industry, many process gases are gas mixtures composed of multiple components. According to different uses, it is often necessary to separate one or several of the components as raw materials for products or further processing; One or more useless or harmful components are removed; or one or more components in the gas are condensed to change the composition of the gas mixture. For example: natural gas is a mixture of alkanes with methane as the main component and containing components above C2+ and other impurities. Natural gas entering long-distance pipelines must be purified to remove moisture and impurities, and to condense and separate components above C4+ as much as possible. Pyrolysis gas is a mixture containing hydrogen and various hydrocarbons, which still contains certain impurit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25J3/08
Inventor 李大明张志全
Owner XIAN UNIONFILTER PURIFICATION EQUIP
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