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Suspension bed inorganic film reactor

An inorganic membrane and reactor technology, applied in the field of suspended bed inorganic membrane reactors, can solve the problem of not being used as a reactor, and achieve the effects of full reaction, reduced equipment investment and operating costs, and reduced membrane area.

Active Publication Date: 2011-07-20
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned patents, the membrane tube only acts as a filter in the reactor, and the membrane tube itself is not used as a reactor

Method used

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  • Suspension bed inorganic film reactor
  • Suspension bed inorganic film reactor
  • Suspension bed inorganic film reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, the reactor is composed of a stainless steel membrane tube with an average pore diameter of 200nm, and the space inside the inorganic membrane tube 5 is the reaction space. Taking the ammoxidation of acetone catalyzed by TS-1 to generate acetone oxime as an example, put acetone, solvent tert-butanol, catalyst TS-1 and magnetic stirring rotor into reactor 5 before the reaction, turn on the condensate water, and turn on the magnetic stirring device , heat up, when the reaction temperature reaches 70°C, start the constant flow pumps 3 and 9 at the same time, wherein the constant flow pump 3 adds ammonia to the reaction system, and the constant flow pump 9 adds acetone, hydrogen peroxide and solvent tert-butyl to the reaction system Alcohol mixed solution, the total feed rate is 0.43mL / min, and the vacuum suction pump 7 for discharging is turned on at the same time to start continuous discharge, and the discharge rate is 0.43mL / min. The reaction ...

Embodiment 2

[0022] Such as image 3 As shown, the reactor is composed of a zirconia membrane tube with an average pore diameter of 200nm, and the space inside the inorganic membrane tube 5 is the reaction space. Take the reaction of TS-1 catalyzing the ammoxidation of acetone to generate acetone oxime as an example, put acetone, solvent tert-butanol, and catalyst TS-1 into the reactor 5 before the reaction, turn on the condensate water, start the peristaltic pump 13 cycles, and raise the temperature at the same time , when the reaction temperature reaches 70°C, start the constant flow pumps 3 and 9 at the same time, wherein the constant flow pump 3 adds ammonia to the reaction system, and the constant flow pump 9 adds acetone, hydrogen peroxide and solvent tert-butanol to the reaction system to mix Liquid, the total feed rate is 0.43mL / min, while the vacuum suction pump 7 for discharging is turned on to discharge continuously, and the discharge rate is 0.43mL / min. The reaction is carried...

Embodiment 3

[0024] Such as Figure 4 As shown, the reactor is composed of three zirconia membrane tubes with an average pore diameter of 50 nm, and the space inside the inorganic membrane tube 5 is the reaction space. Take the reaction of TS-1 catalyzing the ammoxidation of acetone to generate acetone oxime as an example, put acetone, solvent tert-butanol, and catalyst TS-1 into the reactor 5 before the reaction, turn on the condensate water, start the peristaltic pump 13 cycles, and raise the temperature at the same time , when the reaction temperature reaches 70°C, start the constant flow pumps 3 and 9 at the same time, wherein the constant flow pump 3 adds ammonia to the reaction system, and the constant flow pump 9 adds acetone, hydrogen peroxide and solvent tert-butanol to the reaction system to mix Liquid, the total feed rate is 1.29mL / min, and the vacuum suction pump 7 for discharging is turned on to discharge continuously at the same time, and the discharge rate is 1.29mL / min. Th...

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Abstract

The invention relates to a new suspension bed inorganic membrane reactor which is applicable for a heterogeneous catalysis reaction that uses fine or ultrafine catalyst particles and can also be applicable for a reaction and solid-liquid separation in which reactants or resultants contain fine suspended particles. The reactor is evidently characterized in that: the membrane tube of the inorganic membrane is taken as a reaction kettle, the reaction kettle can be formed by one or multiple inorganic membrane tubes; besides, the membrane tube can be used with one end closed or open. The reactor ensures that both the material reaction and the solid-liquid separation of the suspended material are accomplished in the inorganic membrane, the reaction and material feeding are carried out simultaneously, the separation is carried out while the filtrate is output, a catalyst is kept in the cavity of the membrane tube and a sucking pump is adopted outside the reactor to cause the inorganic membrane to maintain a constant permeation flux. The reactor of the invention has the advantages of simplified device, small occupying area, short flow, less energy consumption and investment saving.

Description

technical field [0001] The invention relates to a suspended bed inorganic membrane reactor, which is used for heterogeneous catalytic reaction using fine or ultrafine catalyst particles, chemical reaction and solid-liquid separation process containing suspended materials, and belongs to chemical equipment. Background technique [0002] Suspended bed reactor is a common reaction equipment in chemical production. It is suitable for liquid-solid reaction, liquid-liquid-solid reaction, gas-liquid-solid reaction, where the solid-phase reactant or catalyst is fine suspended particles or the reaction generates fine suspended particles. , For example, the catalytic reaction of a suspended solid catalyst, the hydrolysis of titanium compounds to generate fine suspended particles of titanium dioxide, etc. are all suspended bed reactions. After the completion of these reaction processes, it is often necessary to follow the solid-liquid separation process of the material to separate the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/10
Inventor 徐南平陈日志李朝辉邢卫红
Owner NANJING TECH UNIV