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Slurry bed reactor

A technology of reactor and slurry bed, applied in the field of bubbling three-phase slurry bed reactor

Active Publication Date: 2014-08-06
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a novel high-efficiency slurry bed reactor. Certain implementations of the slurry bed reactor enhance the mixing and mass transfer process, or promote the reaction process, or increase the efficiency of the reactor by improving the lower inlet components. , while overcoming the above-mentioned unfavorable defects existing in the prior art

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Examples

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Embodiment 1

[0090] In this embodiment 1, the mixed gas of hydrogen and carbon monoxide is used as raw material to synthesize hydrocarbon oil in a slurry bed reactor, wherein the synthesized hydrocarbon oil is used as a product in liquid form, and the liquid product is exported from the liquid product outlet after filtering through filter 7 to remove solids 8 elicited. Specifically, this example uses figure 1 For the slurry bed reactor shown, the inner diameter of the slurry bed reactor shell is 1 meter, the longitudinal height of the reactor is 25 meters, and the liquid level in the reactor is 18 meters. The cylinder of the reaction zone is arranged along the central axis of the reactor, with an inner diameter of 0.92 meters and a height of 15 meters. Six settling tubes are evenly arranged around the central axis of the reactor, with an inner diameter of 0.028 meters. The upper feed liquid inlet diameter of the expansion port 24 at the upper end of the settling tube is 0.3 meters, and t...

Embodiment 2

[0095] In Example 2, dimethyl ether was synthesized in a slurry bed reactor using a mixed gas of hydrogen and carbon monoxide as a raw material. The reactor design is basically the same as the reactor in Example 1, the only difference is that since the product DME is in gaseous form, it is drawn from the top outlet together with the tail gas, so the reactor in Example 2 does not need filter 7 and liquid phase outlet 8 .

[0096] The pressure in the reactor was 4 MPa, and the temperature of the reaction system was maintained at 270°C by using water from which oxygen and salt had been removed as a condensing agent and passing it through a heat exchange tube bundle. The raw gas used is H 2 / CO volume ratio of 1:1 syngas. Catalyst is the bifunctional catalyst that industrial synthesis methanol catalyst C301 and aluminum oxide dehydration catalyst form, and these catalysts are suspended in solvent liquid paraffin liquid, form the slurry that solid weight content is 15%, and descr...

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Abstract

The present invention provides a slurry bed reactor, which comprises a reactor housing (1), a lower portion gas inlet assembly, a reaction zone cylinder (6), a sedimentation pipe (5) and an upper portion outlet (14), wherein the upper portion outlet (14) is used for exporting a gas substance in a chamber, the lower portion gas inlet assembly is a Venturi device, the outlet of the lower portion gas inlet assembly and the lower portion of the reaction zone cylinder form a fluid communication, the lower portion of the sedimentation pipe (5) and the side surface of the lower portion gas inlet assembly form a fluid communication, and in the reactor housing, a slurry can sequentially pass through the reaction zone cylinder (6), the sedimentation pipe (5), the lower portion gas inlet assembly and the reaction zone cylinder (6) so as to form a circulation circuit. In the embodiment, with the gas inlet assembly, the mixing efficiency and the mass transfer efficiency in the reactor are promoted.

Description

technical field [0001] The invention belongs to the field of chemical equipment and devices, and some embodiments of the application specifically relate to an internal circulation bubbling three-phase slurry bed reactor. Background technique [0002] Slurry bed reactors are widely used in chemical production such as oxidation process, Fischer-Tropsch synthesis, biological fermentation, wastewater treatment, etc. due to the advantages of simple structure, easy manufacture and scale-up, and low operation and maintenance costs. Various slurry bed reactor designs are well reported in the literature and patents. For example, Chinese patent CN1137769C describes a slurry bed synthesis reaction device including riser, downcomer, gas distributor and agitator; Chinese patent CN1233451C describes a continuously operated gas-liquid-solid three-phase slurry bed industrial reactor ; Chinese patent application CN1593740A describes a high-efficiency slurry bed reactor composed of variable ...

Claims

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Application Information

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IPC IPC(8): B01J8/22C10G2/00C07C43/04C07C41/01
Inventor 孙予罕廖波刘小浩王小泉赵陆海波张小莽罗艳宁王江峰陈延肖亚宁刘斌王东飞安杰逻·阿莫里
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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