A slurry bed Fischer-Tropsch synthesis reactor

A Fischer-Tropsch synthesis and reactor technology, applied in chemical instruments and methods, chemical/physical processes, etc., can solve problems such as optimization, and achieve the effects of improving conversion rate, reducing content, and accelerating diffusion rate

Active Publication Date: 2015-09-02
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the above-mentioned existing slurry bed Fischer-Tropsch synthesis process and reaction equipment, there is no optimization of the operation process from the reaction process to improve the stability of the catalyst activity and reduce the selectivity of carbon dioxide and methane

Method used

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  • A slurry bed Fischer-Tropsch synthesis reactor
  • A slurry bed Fischer-Tropsch synthesis reactor

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Experimental program
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Effect test

Embodiment 1

[0021] use figure 1 In the slurry bed Fischer-Tropsch synthesis reactor shown, the heating part of the gas-liquid diffusion section is a spiral coil heat exchange tube, the heating medium is the steam flowing out of the cooling coil in the reaction section, and the Fischer-Tropsch synthesis catalyst used is 20 %Co0.8%Pt / SiO 2 (Wt.), the reaction solvent is paraffin, the reaction temperature is 220°C, the reaction pressure is 2.0MPa, and the space velocity is 2.5Nm 3 / h / kg cat., H in syngas 2 / CO=2 (molar ratio), the gas-liquid diffusion section is heated through a spiral coil heat exchange tube, and light hydrocarbons and water vapor are heated to 230°C in the gas-liquid diffusion section. The conversion rate of carbon monoxide, methane selectivity, carbon dioxide selectivity and 200h stability test results are listed in Table 1.

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Abstract

The invention discloses a slurry bed Fischer-Tropsch synthetic reactor, which comprises a reactor inlet, a reactor outlet, a reaction section at the lower part of the reactor and a gas-liquid diffusion section at the upper part of the reactor. A gas distributor is arranged at the lower end of the reaction section; a liquid wax discharge outlet is arranged on the sidewall of the reaction section; a cooling coil pipe is arranged in the reaction section; and the gas-liquid diffusion section at the upper part of the reactor is provided with a heating component. With the adoption of the reactor, the stability of a catalyst and the rate of conversion of carbon monoxide can be improved, and the selectivity of carbon dioxide and methane is lowered.

Description

technical field [0001] The invention relates to a slurry bed Fischer-Tropsch synthesis reactor. Background technique [0002] Fischer-Tropsch synthesis refers to synthesis gas (CO+H 2 ) Catalyze the reaction of synthesizing hydrocarbon liquid fuel on the catalyst. With the increasing depletion of petroleum resources, the preparation of liquid fuels by Fischer-Tropsch synthesis has attracted more and more attention from all over the world. [0003] The reactors used for F-T synthesis include fixed bed, circulating fluidized bed, fixed fluidized bed and slurry bed. The fixed bed reactor has the disadvantages of hot spots, clogging and low production capacity, the fluidization process of the circulating fluidized bed is difficult to control, the catalyst utilization rate is low and the wear is serious, and the production capacity is still low. Fixed fluidized bed is an improved form of circulating fluidized bed. It not only has a simple structure and is easy to operate, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/22
Inventor 李杰宋喜军张舒冬倪向前张喜文陈楠
Owner CHINA PETROLEUM & CHEM CORP
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