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Fischer-Tropsch synthesis reaction system and Fischer-Tropsch synthesis method

A Fischer-Tropsch synthesis and reaction system technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, catalysts for physical/chemical processes, etc. The effect of safe operation, compact structure and stable operating temperature

Active Publication Date: 2019-02-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above three Fischer-Tropsch synthesis reactors are suitable for the situation of large processing capacity and high output, and the scale of the reactor is relatively large, and the equipment is basically not mobile

Method used

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  • Fischer-Tropsch synthesis reaction system and Fischer-Tropsch synthesis method
  • Fischer-Tropsch synthesis reaction system and Fischer-Tropsch synthesis method
  • Fischer-Tropsch synthesis reaction system and Fischer-Tropsch synthesis method

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preparation example Construction

[0026] The preparation method of the nano-catalyst is as follows: under the protection of nitrogen, mix and dissolve a certain amount of soluble salt containing metal ions and a stabilizer in water, add a certain amount of metal reducing agent, and produce nano-metal particles after fully stirring. The metal particles are separated by magnetic separation, washed with water, and then dispersed into water containing stabilizers to form a liquid phase medium. The stabilizer is preferably polyvinylpyrrolidone.

[0027] In the Fischer-Tropsch synthesis reaction system provided by the present invention, preferably, the liquid phase medium is water, alcohol, refluxing hydrocarbon or ionic liquid, preferably water. Preferably, the liquid medium contains a polymer stabilizer to maintain high dispersion of the metal nanoparticles, and the stabilizer is preferably polyvinylpyrrolidone.

[0028] In the microreactor, the inlet end of the reaction microchannel is provided with a distributi...

Embodiment

[0046] The structure of the Fischer-Tropsch synthesis microreactor is shown in the appendix figure 2 ~ attached Figure 4 As shown, the reactor includes reaction microchannels and heat exchange microchannels, and the multilayer reaction microchannels and heat exchange microchannels are arranged separately. The dimensions of all microchannels are 1 mm high, 2 mm wide, and 1000 mm long. The flow diverting member 12 is rhombus-shaped, the inner angle of the obtuse angle of the rhombus is 120 degrees, and the inner angle of the acute angle is 60 degrees. The volume flow ratio of syngas to liquid medium is 30:1.

[0047] The liquid phase medium contains a nano catalyst which is a nano cobalt catalyst, and polyvinylpyrrolidone is added to maintain the stability of the liquid phase medium. The preparation method of described nano-cobalt catalyst is: under nitrogen protection, the Co(OAC) of 1g 2 ﹒ 4H 2 O was mixed with 4.4g of polyvinylpyrrolidone and dissolved in 60mL of wate...

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Abstract

The invention discloses a Fischer-Tropsch synthesis reaction system and Fischer-Tropsch reaction method using the system. The Fischer-Tropsch synthesis reaction system comprises a microreactor, a synthesis gas, a liquid-phase medium and a nano-catalyst, wherein the microreactor comprises a liquid-phase inlet, a gas-phase inlet, reaction microchannels, heat transfer microchannels and a product outlet, wherein the liquid-phase inlet is communicated with one end of each reaction microchannel, the other end of each reaction microchannel is communicated with the product outlet, the gas-phase inlet is communicated with the reaction microchannels through distribution holes formed in the reaction microchannels at the end of the liquid-phase inlet, the heat transfer microchannels are not communicated with the reaction microchannels, wherein the cross section of each reaction microchannel is 0.01 to 100mm<2>, the distance between the adjacent reaction microchannels is 0.5 to 20mm, and the diameter of each distribution hole is 0.1 to 2mm. The microreactor adopted in the Fischer-Tropsch synthesis reaction system provided by the invention has the characteristics of small size, compact structure and good mobility and low investment.

Description

technical field [0001] The invention relates to a Fischer-Tropsch synthesis reaction system and a Fischer-Tropsch synthesis method, more specifically, to a system and method for Fischer-Tropsch synthesis by using a microchannel reactor. Background technique [0002] Fischer-Tropsch synthesis technology is a very important alternative energy technology, which can convert synthesis gas (H 2 and CO) are converted into hydrocarbons by catalysts. Generally, the Fischer-Tropsch synthesis reactor includes three forms: fixed bed, fluidized bed and slurry bed. The catalyst in the reactor is solid particles, and the synthesis gas enters the reactor and reacts with the solid particles. The above three Fischer-Tropsch synthesis reactors are suitable for the situation of large processing capacity and high output, and the scale of the reactor is relatively large, and the equipment basically does not have mobility. However, for the case where the amount of synthesis gas is small and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00C10G2/00B01J23/75
Inventor 唐晓津刘凌涛黄涛朱振兴韩颖王子军
Owner CHINA PETROLEUM & CHEM CORP
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