Highly effective slurry phase bed reactor

A reactor and slurry bed technology, applied in the field of slurry bed reactors, can solve the problems of abnormal operation of the reactor and easy occurrence of bias flow, etc., and achieve the effects of large reaction activity, difficult bias flow, and smooth operation.

Inactive Publication Date: 2006-11-08
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the abnormal operation of the reactor caused by the large amount of catalyst and solvent carried in the existing slurry bed reactor and the easy occurrence of bias flow, channel flow and dead bed

Method used

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  • Highly effective slurry phase bed reactor

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Embodiment approach 1

[0017] The high-efficiency slurry bed reactor of the present invention consists of a solid-liquid separator 2, a variable-diameter inner sleeve 3, a reactor outer sleeve 4, a heat exchanger 5 with internal components, a gas riser 6 with nozzles, and a heating and gas distribution function. The inner sleeve 7, the anti-clogging nozzle 8, the nozzle installation plate 9 of the head type structure and the secondary distribution plate 13 are formed. In this reactor, the internal components for realizing the internal circulation of the slurry are arranged, including the inner sleeve with variable diameter 3, which has The inner sleeve 7 for heating and gas distribution, the nozzle mounting plate 9 of the head type structure, the gas riser 6 for uniformly distributing the gas along the axial direction of the reactor, the secondary gas distribution plate 13 for realizing the secondary distribution of the gas, and the solid The liquid separator 2 constitutes. The anti-blocking nozzle ...

Embodiment approach 2

[0020] In the high-efficiency slurry bed reactor of the present invention, the outlet of the anti-clogging nozzle 8 has a spherical body to prevent the backflow of the slurry, and its diameter is 1.2 times that of the nozzle throat. The nozzle installation plate 9 of the head type structure is tangent to the inner wall of the reactor, and forms a smooth slurry return channel with the inner wall of the reactor. The inner sleeve 7 with heating and gas distribution functions is made of coiled tubes, and the distance between the coiled tubes changes from zero to the diameter of the coiled tubes from bottom to top. The barrel diameters of the variable diameter inner sleeve 3, the heat exchanger 5 with internal components and the inner sleeve 7 with heating and gas distribution functions change from 0.5 times the reactor diameter to 0.9 times the reactor diameter from bottom to top along the reactor. Gas riser 6 is installed in the inside of the reactor and directly links to each ot...

Embodiment approach 3

[0023] In the high-efficiency slurry bed reactor of the present invention, the outlet of the anti-clogging nozzle 8 has a spherical body to prevent the backflow of the slurry, and its diameter is 1.3 times that of the nozzle throat. The nozzle installation plate 9 of the head type structure is tangent to the inner wall of the reactor, and forms a smooth slurry return channel with the inner wall of the reactor. The inner sleeve 7 with heating and gas distribution functions is made of coiled tubes, and the distance between the coiled tubes changes from zero to the diameter of the coiled tubes from bottom to top. The barrel diameters of the variable diameter inner sleeve 3, the heat exchanger 5 with internal components and the inner sleeve 7 with heating and gas distribution functions change from 0.6 times the reactor diameter to 1 times the reactor diameter from bottom to top along the reactor. Gas riser 6 is installed in the inside of the reactor and directly links to each othe...

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Abstract

The invention relates to a high-efficiency slurry bed reactor, which belongs to the field of chemical machinery. It mainly consists of a solid-liquid separator, a variable-diameter inner sleeve, a reactor jacket, a heat exchanger with internal components, a gas riser with nozzles, an inner sleeve with heating and gas distribution functions, anti-blocking nozzles, nozzle mounting plates, Heat exchanger, heating coil outlet, secondary distribution plate, heating coil, etc. The beneficial effects of the present invention are that the distributor of the reactor is not easily blocked, the gas-liquid mixing is uniform, the gas-solid contact is sufficient, the reaction efficiency is high, the carrying amount of the catalyst and the solvent is small, the bias flow, channel flow and dead bed are not easy to occur, and the slurry flow rate Fast, the viscosity of the slurry in the reactor is basically the same, and the heat of reaction can be removed in time, especially in the stage of catalyst reduction and temperature rise, it is easy to realize the stable operation of the reactor. In addition, the distribution of the feed gas in the reactor along the axial direction is basically the same as the concentration of the catalyst. The catalyst can maximize its reactivity, and the space of the reactor can be fully utilized.

Description

1. Technical field [0001] The invention relates to a slurry bed reactor suitable for producing chemicals such as dimethyl ether and methanol, belonging to the field of chemical machinery. 2. Background technology [0002] Slurry bed reactor is a new type of chemical reaction equipment. It uses raw material gas as the power source of reaction mixing, uses inert solvent as the carrier, and disperses and suspends the catalyst in the solvent for reaction. This type of reaction equipment has no mechanical Stirring, so it can run leak-free at high temperature and pressure. Since the inert solvent is used as the carrier of the dispersed catalyst, the heat capacity is large, which is conducive to the stability of the reaction temperature. Due to the strong disturbance of the gas in the bed, the heat of reaction can be removed in time, avoiding hot spots in the bed and prolonging the life of the catalyst. . The existing slurry bed reactor is often blocked due to the restriction of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/22
Inventor 谢克昌姜少华黄伟田原宇
Owner TAIYUAN UNIV OF TECH
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