Fischer-Tropsch synthesis reaction product separation equipment

Abstract

The invention relates to Fischer-Tropsch synthesis reaction product separation equipment. The equipment comprises a shell, a feed inlet, a feed pipe, a separator, a first discharge hole and a second discharge hole, wherein the top of the shell is provided with the feed inlet, one side of the middle upper part of the shell is provided with the first discharge hole, the bottom of the shell is provided with the second discharge hole, and the feed inlet, the feed pipe and the separator are coaxially arranged inside the shell and are communicated sequentially; the side walls of the separator are formed by surrounding four or more than four filtering and separating units which are vertically arranged, and the middle is provided with a cavity; the upper end of the separator is closely connected and communicated with the feed pipe through a top plate; a closed bottom plate is arranged at the lower part of the separator; and a filtering tray is arranged at the lower end of each filtering and separating unit, and a down pipe is arranged in each filter disk. The Fischer-Tropsch synthesis reaction product separation equipment provided by the invention realizes efficient separation of slurry reactor reaction products, and a Fischer-Tropsch synthesis reaction device can stably operate for a long period.

Description

technical field [0001] The invention relates to the technical field of Fischer-Tropsch synthesis, more specifically, a Fischer-Tropsch reaction gas-liquid mixture separation device. Background technique [0002] Slurry bed reactors are widely used in the fields of coal chemical industry and petrochemical industry. Fischer-Tropsch synthesis reactions use slurry bed reactors. However, in slurry bed reactors, fine catalyst particles, liquid reactants and products Mixing together will cause the problem that the reaction product and the catalyst are difficult to separate. Therefore, how to effectively separate the catalyst fine powder particles and the reaction product is one of the key technologies in the slurry bed process. [0003] In the slurry bed reaction process, with the progress of the reaction, the catalyst is worn and broken. The broken catalyst needs to be discharged out of the reactor along with the slurry through regular discharge, and at the same time, fresh cataly...

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Problems solved by technology

[0005] 1. Catalyst fine powder is carried in the slurry bed reaction product, and the internal parts of the existing separation equipment are easily blocked by the catalyst fine powder, resulting in the inability to effectively separate the reaction product and meet the operation requirements of the subsequent system; at the same time, the internal part blockage will also cause The pressure difference between the inlet and outlet of the separation equipment increases, and in serious cases, the internal parts of the separator are swollen and cracked, and the separator needs to be stopped for maintenance and treatment, which affects the long-term stable operation of the device and causes losses to the economic benefits of the enterprise;

[0006] 2. Due to the blockage of the internal parts, the light and heavy components cannot be effectively separated, and the heavy components are carried to the light components with the air flow, resulting in the failure to establish a liquid level for the heavy components at the bottom of the separator, and the liquid level gauge cannot display the correct liquid level, which affects the operator The judgment of the working conditions on site may easily lead to misjudgment and misjudgment, which will affect the safe and stable operation of the device;

[0007] 3. A large amount of water in the reaction product cannot be discharged from the equipment with the gas phase components, but enters the heavy components, causing difficulties for the next step of the heavy components;

[0008] 4. The separation effect cannot meet the design requirements, which will have a great impact on the production of the subsequent section and seriously affect the normal production of the subsequent system;

[0009] 5. Due to the blockage of the internal parts, it is necessary to stop frequently to clean the internal parts, which increases the workload and work risks of personnel

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