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Low-temperature separation device and separation method

A separation device and low-temperature technology, which can be used in separation methods, combined devices, and dispersed particle separation, and can solve problems such as poor separation performance

Pending Publication Date: 2021-08-27
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a low-temperature separation device and separation method, which solves the technical problem that the existing vertical separator has poor separation performance when processing natural gas with high wax content

Method used

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  • Low-temperature separation device and separation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 2 It is a schematic structural diagram of the low-temperature separation device provided in Embodiment 1 of the present invention, image 3 It is a schematic structural diagram of the inertial separator provided in Embodiment 1 of the present invention, Figure 4 is a schematic structural view of the barrier provided in Embodiment 1 of the present invention, Figure 5 It is a schematic structural view of the centrifugal separator provided in Embodiment 1 of the present invention, Image 6 It is a schematic structural diagram of the baffle separator provided in Embodiment 1 of the present invention, Figure 7 It is a structural schematic diagram of the corrugated plate provided by Embodiment 1 of the present invention.

[0042] refer to Figure 2 to Figure 7 As shown, the embodiment of the present invention provides a low-temperature separation device, which is suitable for gas-liquid separation of waxy natural gas. The low-temperature separation device inclu...

Embodiment 2

[0074] Figure 8 A schematic flow diagram of the separation method provided in Example 2 of the present invention.

[0075] Further, on the basis of the low-temperature separation device of the above-mentioned embodiment, refer to Figure 8 As shown, in this embodiment, the embodiment of the present invention provides a separation method suitable for waxy natural gas, comprising the following steps:

[0076] S100: The natural gas enters the inertial separator 121 in the separation container 1, and the first-stage gas-liquid separation is performed on the natural gas through the inertial separator 121. The particles and liquid in the natural gas collide with the inertial separator 121 at a preset speed, and Adhering to the inertial separator 121 and continuously accumulating, under the action of gravity, the mixed liquid of heavy hydrocarbons, alcohol and water enters the first liquid storage chamber 21 through the first communication pipe 3 .

[0077] S200: The natural gas a...

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Abstract

The invention provides a low-temperature separation device and a separation method. The low-temperature separation device comprises a separation container; and a first-stage separation chamber, a second-stage separation chamber and a third-stage separation chamber which are communicated with one another are sequentially arranged in the separation container in the flowing direction of natural gas; an inertia separator is arranged in the first-stage separation chamber; a centrifugal separator is arranged in the second-stage separation chamber; a separator assembly is arranged in the third-stage separation chamber; the separator assembly comprises a coalescer and a baffle separator which are sequentially arranged in the natural gas circulation direction; and the natural gas is used for sequentially flowing through the inertia separator, the centrifugal separator, the coalescer and the baffle separator, so that a gas phase and a liquid phase in the natural gas are separated. According to the low-temperature separation device and the separation method provided by the embodiment of the invention, the purpose of carrying out gas-liquid separation on the wax-containing natural gas is achieved, and the technical problem that when an existing vertical separator is used for treating the wax-containing natural gas, the separation performance is poor is solved.

Description

technical field [0001] The invention relates to the technical field of gas-liquid separation, in particular to a low-temperature separation device and separation method suitable for waxy natural gas. Background technique [0002] Due to natural conditions, natural gas extracted from natural gas fields contains certain impurities, such as hydrocarbons, alcohols and water. The impurities in the natural gas have adverse effects on the use of natural gas and the transportation of natural gas. Therefore, the impurities in the natural gas obtained through the exploitation of natural gas fields must be removed. [0003] At present, natural gas undergoes a low-temperature (i.e., temperature at minus 15°C and below) treatment process, such as low-temperature sedimentation, to make the impurities contained in the natural gas into a liquid state, and then the liquid state is separated from the natural gas through the gas-liquid separation method in the low-temperature treatment process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10B01D5/00B01D45/04B01D45/12B01D50/00
CPCB01D45/04B01D45/12B01D50/00B01D53/002C10L3/10C10L3/101C10L3/106
Inventor 王天祥邹应勇王玉柱胡大鹏赵建彬张明益于洋赵志勇刘文伟孔令峰张波张新庆孙凤枝
Owner PETROCHINA CO LTD