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Apparatus and method for separating lubricant from gas stream and system and method for compressing combustible gas

A technology of lubricant and gas flow, which is applied in the system field of compressing combustible process gas, can solve the problem of not excluding combustible process gas, achieve less maintenance and improve durability

Active Publication Date: 2022-03-29
BURCKHARDT COMPRESSION AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this device is that it does not exclude the possibility of ignition of the compressed flammable process gas

Method used

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  • Apparatus and method for separating lubricant from gas stream and system and method for compressing combustible gas
  • Apparatus and method for separating lubricant from gas stream and system and method for compressing combustible gas
  • Apparatus and method for separating lubricant from gas stream and system and method for compressing combustible gas

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Embodiment Construction

[0021] figure 1 A device 1 for separating lubricant is shown schematically. Upstream of the device 1 there is a compressor 2 , preferably a piston compressor, to which a combustible process gas G to be compressed, preferably natural gas, methane or ethane, is fed. The process gas G is compressed in the compressor 2 to a high pressure, for example above 80 bar, or above 250 bar and preferably above 300 bar. In order to improve the durability of the compressor at this high pressure, especially the durability of the compressor seal ring at this high pressure, a lubricant S is used, which is supplied to the compressor. Advantageously, lubricating oil is injected as lubricant S into the compression space of compressor 2 , so that there is a compressed gas stream 3 b containing combustible process gas G and lubricant S, which is fed to device 1 at the outlet of compressor 2 .

[0022] The device 1 according to the invention for separating lubricant S from a compressed gas stream 3...

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PUM

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Abstract

A device for separating lubricant from a compressed gas stream (3b) comprising combustible process gas (G) and lubricant (S), comprising: a first filter device to which the compressed gas stream A lubricant depleted gas stream (3c) is extracted from a filter unit, the first filter unit comprising a separator (a) for separating the lubricant and a first storage container for storing the separated lubricant (Sa), The separated lubricant contains a residual amount of process gas; a first intermediate tank, which is connected to the first storage container by means of a first connecting line; a flushing gas supply line, which supplies flushing gas to the first intermediate tank; flushing A gas discharge line, which discharges the flushing gas and the degassed process gas contained therein from the first intermediate tank; a collection tank, which is connected to the first intermediate tank by means of a first outflow line to supply the separated lubricant to the collection tank .

Description

technical field [0001] This invention relates to apparatus and methods for separating lubricants from gas streams. The present invention also relates to systems and methods for compressing combustible process gases. Background technique [0002] The compression of combustible process gases such as natural gas, methane, ethane or generally hydrocarbons or hydrocarbon mixtures from an initial pressure to an end pressure by means of piston compressors is known. But compressing such combustible gases is extremely challenging, especially when they are compressed to high pressures, eg above 250 bar. Technical measures are required during the compression of such flammable gases to prevent fire or even explosion. Document JP10026093A discloses a device for removing oil from compressed process gases. The disadvantage of this arrangement is that it does not exclude the possibility of ignition of the compressed flammable process gas. Contents of the invention [0003] The object ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D45/18B01D19/00F04B39/02F04C29/02
CPCB01D19/0005B01D45/18F04B37/18F04B39/0284F04B39/16F04B39/02F04C29/026
Inventor T·莱布里奇T·赫斯
Owner BURCKHARDT COMPRESSION AG