Online split-phase acquisition device and method for Fischer-Tropsch reaction products

A Fischer-Tropsch reaction and collection device technology, applied in measurement devices, analytical materials, material separation, etc., can solve the problems of poor separation effect and high moisture content in the gas phase, and achieve the effects of improving efficiency, high timeliness, and avoiding analysis errors.

Active Publication Date: 2022-02-18
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an efficient and accurate on-line phase separation collection device and method for Fischer-Tropsch reaction products in order to overcome the disadvantages of poor separation effect of Fischer-Tropsch reaction products and high moisture content in the gas phase of the prior art

Method used

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  • Online split-phase acquisition device and method for Fischer-Tropsch reaction products
  • Online split-phase acquisition device and method for Fischer-Tropsch reaction products
  • Online split-phase acquisition device and method for Fischer-Tropsch reaction products

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Embodiment 1

[0080] The on-line phase-separation collection device of the Fischer-Tropsch reaction product used in this embodiment is as follows: figure 1 shown, and the structure of the water-oil separator is as figure 2 shown.

[0081] After the Fischer-Tropsch reaction product flows out of the reactor, it flows into the flash separation tank through the outlet pipeline of the reactor, and in the flash separation tank, it passes through the cone liquid separation plate, the arch liquid separation plate, and the membrane separation module from bottom to top in sequence for flash evaporation Separation, water interception, foam breaking and diversion, separation to obtain gas phase and liquid phase;

[0082] The gas phase is heated and kept at 100°C and sent to the gas chromatograph for real-time analysis of the composition;

[0083] The liquid phase (water-oil mixture) flows into the liquid storage pipe from the outlet of the flash separation tank, and is stratified under the action of...

Embodiment 2

[0097] According to the method of embodiment 1, the difference is that a water-oil separator is not provided.

[0098] Concrete process condition and separation result in the present embodiment are as shown in table 1.

Embodiment 3

[0100] According to the method of embodiment 1, the difference is that no arched liquid separator is provided.

[0101] Concrete process condition and separation result in the present embodiment are as shown in table 1.

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Abstract

The invention relates to the technical field of material separation, in particular to an online split-phase collection device and method for Fischer-Tropsch reaction products, and the device comprises a flash separation tank which is communicated with a Fischer-Tropsch reactor and is used for separating the Fischer-Tropsch reaction products into a liquid phase and a gas phase; and the flash separation tank further comprises a hydrophobic unit and a liquid separation plate. The device also comprises a gas phase outlet pipeline arranged at the top end of the flash separation tank and used for leading the gas phase out of the flash separation tank; a first valve arranged on the gas phase outlet pipeline and used for adjusting the pressure of the flash separation tank; and a liquid phase collecting unit arranged at the bottom of the flash separation tank and used for collecting the liquid phase. According to the invention, the gas phase and liquid phase composition can be analyzed in real time, the timeliness is extremely high, the analysis error, environmental pollution and system pressure fluctuation caused by evaporation and gas escape during each lofting are avoided, and the subsequent analysis efficiency and the accuracy of the analysis result are improved; and meanwhile, a complex treatment link of an off-line sample is omitted.

Description

technical field [0001] The invention relates to the technical field of material separation, in particular to an online phase-separation collection device and method for Fischer-Tropsch reaction products. Background technique [0002] Fischer-Tropsch synthesis reaction is a process of converting raw materials such as coal, natural gas and biomass into liquid fuels and high value-added chemicals through synthesis gas. The carbon number distribution of organic oxygen-containing compounds is relatively wide, and the highest carbon number of the product even reaches C 70 -C 120 . [0003] At present, the collection of Fischer-Tropsch reaction products usually adopts two-stage or even multi-stage cooling to produce wax, oil, water and tail gas, which is prone to the following problems: (1) It is difficult to control the actual separation effect of each stage by stage-by-stage cooling, and water and oil emulsification and mutual entrainment are serious; (2) The product is collec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G7/00C10G53/02G01N30/88
CPCC10G7/00C10G53/02G01N30/88C10G2300/1022G01N2030/8886
Inventor 张琪王涛孟祥堃门卓武吕毅军张雪冰王鹏孙永伟龙银花
Owner CHNA ENERGY INVESTMENT CORP LTD
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