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A Fischer-Tropsch synthetic reaction method

A technology of Fischer-Tropsch synthesis and reaction, which is applied in the preparation of liquid hydrocarbon mixtures, the petroleum industry, and the treatment of hydrocarbon oils. It can solve the problems of large-scale reactors and lack of mobility of equipment, and achieve safe operation of equipment and compact structure. , The effect of excellent technical and economic performance

Active Publication Date: 2017-05-10
CHINA PETROLEUM & CHEM CORP +1
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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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  • A Fischer-Tropsch synthetic reaction method
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  • A Fischer-Tropsch synthetic reaction method

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preparation example Construction

[0030] The preparation method of the nano-catalyst is as follows: under the protection of nitrogen, a certain amount of soluble salt containing metal ions and a stabilizer are mixed and dissolved in water, a metal reducing agent is added, and the nano-metal particles are produced 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.

[0031]In the Fischer-Tropsch synthesis method provided by the present invention, the liquid phase medium is water, alcohol, refluxing hydrocarbon or ionic liquid. Preferably, the liquid phase medium is water. Preferably, the liquid medium contains a polymer stabilizer to maintain high dispersion of the metal nanoparticles, and the stabilizer is preferably polyvinylpyrrolidone.

[0032] In the Fischer-Tropsch synthesis method provided by the invention, the concentratio...

Embodiment 1

[0048] Use as attached figure 1 The shown Fischer-Tropsch synthesis reaction device, the structure of the microreactor is as attached Figure 2-4 shown. The diameter of the nozzle of the mixer is 0.4 mm. The microchannel reactor includes reaction microchannels and heat exchange microchannels. The dimensions of all microchannels are 1 mm high and 2 mm wide. The flow diverting member 6 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 ratio of the volume flow rate of the synthesis gas entering the mixer to the liquid phase (catalyst liquid) containing nano metal catalyst particles is 30:1. The nano particles contained in the catalytic liquid are cobalt catalysts, and polyvinylpyrrolidone is added to maintain the stability of the catalytic liquid. The concentration of cobalt in the catalytic liquid is 0.05mmol / mL. The ratio of synthesis gas tail gas to circulating synthesis gas is 1:...

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Abstract

A Fischer-Tropsch synthetic reaction method is provided. After synthetic gas is dispersed into gas bubbles by a dispersing structure, the gas bubbles are fed into a mixer and fully mixed with a catalyzing solution containing a nanometer catalyst, and the fully mixed reaction stream enters a reaction micro-channel of a microreactor through a stream inlet and is subjected to a Fischer-Tropsch synthetic reaction to produce a hydrocarbon product. Heat generated by the reaction is released through heat exchange with a heat exchange medium in a heat exchange micro-channel, the reaction temperature in the micro-channel of the reactor is 100-250 DGE C, and the reaction pressure is 0.5-4.0 MPa. Materials discharged at a product outlet of the microreactor are synthetic gas, a gas-phase reaction product, a liquid phase containing the nanometer catalyst and a liquid phase reaction product, and are fed into a separator and subjected to gas liquid separation. A liquid phase discharged from a liquid phase hydrocarbon outlet of the separator is a hydrocarbon product. According to the method, the microreactor is adopted, and reaction devices are small in size and compact in structure and have characteristics of good mobility and low investment.

Description

technical field [0001] The present invention relates to a kind of Fischer-Tropsch synthesis reaction method, more specifically, relate to a kind of method that carries out Fischer-Tropsch synthesis through 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 sources o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G2/00
CPCC10G2/34C10G2300/4068
Inventor 唐晓津朱振兴韩颖黄涛刘凌涛王子军
Owner CHINA PETROLEUM & CHEM CORP
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