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Simple natural gas liquid recovery system

A recovery system and technology of natural gas, applied in the directions of liquefaction, solidification, refrigeration and liquefaction, can solve the problems of wasting natural gas energy, polluting the environment, and the recovery effect is not very good, to simplify the process flow and cost, expand space capacity, save The effect of the device

Inactive Publication Date: 2018-04-27
海盐派特普科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method not only pollutes the environment, but also greatly wastes natural gas energy. The use of natural gas condensate recovery technology is conducive to protecting the environment and avoiding waste of resources, but the recovery effect of the existing natural gas condensate recovery process is not very good

Method used

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  • Simple natural gas liquid recovery system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 Shown: a simple natural gas condensate recovery system, including compressor 2, three-phase separator 5, molecular sieve 8, cold box 11 and condensate stabilization tower 21, characterized in that: the outlet end of compressor 2 is connected with a first cooling 3, the first cooler 3 is connected with a three-phase separator 5, the gas outlet end of the three-phase separator 5 is connected with a molecular sieve 8, and the molecular sieve 8 is connected with a cold box 11, and the cold box 11 is connected with the low-temperature separator 15 and the three-phase separator 5 respectively. , compressor 2, and condensate stabilization tower 21 are connected, and the cold box 11 is also provided with a product natural gas 20 output pipe, and the condensate stabilization tower 21 is connected with a second cooler 23, and the recovery system designed can realize the natural gas condensate recovery process The low-temperature mixed light hydrocarbon 17 multidi...

Embodiment 2

[0020] This embodiment further optimizes the technical scheme on the basis of embodiment 1 as follows: Figure 2-4The shown three-phase separator 5 is also provided with an unstabilized condensate outlet 529, the cold box 11 is connected with the unstabilized condensate outlet 529, the lower part of the three-phase separator 5 is connected with a saddle 513, and the three-phase separator 5 is provided with The separation internal part 506, the first weir plate 524 and the second weir plate 520 divide the interior of the three-phase separator 5 into an oil-water interface 525 space, an oil-liquid interface 527 space, and a water-liquid interface 527 space. The raw material inlet 504, the designed three-phase separator 5 can realize the separation of oil, water and gas, and use the principle of oil-water incompatibility and flowing water weir to realize oil-water separation, save oil-water separation equipment, simplify the separation process, and make natural gas Rapid separati...

Embodiment 3

[0023] Such as image 3 As shown, the oleophobic coating 524a provided on both sides of the first weir plate 524 is composed of the following components and parts by weight: 18 parts of polyurethane prepolymer, 0.024 parts of polyglycerol fatty acid ester, 1-phenyl-5-mercaptotetrazole 0.03 parts of azole, 10 parts of polyethylene glycol, 3 parts of perfluoroalkylmethanol and 42 parts of organic solvent, the organic solvent is a mixed solution of acetone and toluene, and the structural formula of perfluoroalkylmethanol is CF3(CF2)nCH2OH, wherein n Representing an integer from 5 to 10, the oleophobic effect of the surface of the first weir plate 524 is improved through the oleophobic coating 524a, so as to prevent oil from adhering to the surface of the first weir plate 524 and affecting the efficiency and effect of phase separation of raw materials, and the oleophobic coating The static contact angle of 524a and oil is greater than 150°, has super-oleophobicity, and the oleopho...

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Abstract

The invention discloses a simple natural gas liquid recovery system, and belongs to the technical field of natural gas recovery. The simple natural gas liquid recovery system comprises a compressor, athree-phase separator, a molecular sieve, a cold box and a liquid stabilizer; the outlet end of the compressor is connected with a first cooler; the first cooler is connected with the three-phase separator; the gas outlet end of the three-phase separator is connected with the molecular sieve; the molecular sieve is connected with the cold box; the cold box is connected with a low temperature separator, the three-phase separator, the compressor and the liquid stabilizer; a finished natural gas output pipe is arranged on the cold box; and the liquid stabilizer is connected with a second cooler.Mixed light hydrocarbon in the recovery process is taken as a refrigerant for cooling natural gas, and a recovery technology is simplified. By improving the efficiency of separating oil, liquid and gas from a raw material, the recovery efficiency of natural gas liquid is improved, the water ratio of oil separated by a raw material separation device is low, and the water ratio of the gas separatedby the raw material separation device is low.

Description

technical field [0001] The invention belongs to the technical field of natural gas recovery and specifically designs a simple natural gas condensate recovery system. Background technique [0002] Oil and natural gas are scarce natural resources. With the development of China's future economy, the demand for natural gas will grow faster than other primary energy sources, thus providing opportunities for Liaohe Oilfield. China's natural gas market is mainly in the coastal areas. There are three sources of coastal natural gas supply: West-to-East Gas Pipeline, Offshore Natural Gas and LNG. They all require strong technical and capital cost support. The high transportation cost of natural gas has become a constraint on natural gas exploitation. , The bottleneck of use. [0003] With the development of oil exploration and development offshore, more and more oil fields with marginal reserves are entering the development stage. Due to the small scale, it cannot meet the economic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J3/08
CPCF25J3/08F25J2205/20F25J2210/60F25J2220/60F25J2220/68F25J3/061F25J3/0635F25J3/0645F25J3/065F25J3/0695F25J2205/02F25J2210/04F25J2230/30F25J2270/08F25J2270/88F25J2290/72
Inventor 王妍
Owner 海盐派特普科技有限公司
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