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Method for preparing hollow fiber electro-catalysis membrane reactor with petal-shaped cross section

An electrocatalytic membrane and cross-sectional technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of small external surface area, poor reaction effect, large thickness of electrocatalytic membrane reactor, etc. The effect of large external surface area, cost saving, increased output power and hydrogen production rate

Active Publication Date: 2018-05-04
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The electrocatalytic membrane reactor prepared by the above-mentioned patent has large thickness, small external area, and poor reaction effect

Method used

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  • Method for preparing hollow fiber electro-catalysis membrane reactor with petal-shaped cross section
  • Method for preparing hollow fiber electro-catalysis membrane reactor with petal-shaped cross section
  • Method for preparing hollow fiber electro-catalysis membrane reactor with petal-shaped cross section

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Experimental program
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Effect test

Embodiment 1

[0045] The described cross section is the preparation method of the hollow fiber electrocatalytic membrane reactor of petal type, comprises the following steps:

[0046] (1) Preparation of polymer solution

[0047] Dissolve 12.5g of polyethersulfone, 0.1g of polyacrylamide, and 1g of polyvinylpyrrolidone in 50g of N,N-dimethylformamide-d 7 , to obtain a polymer solution; wherein polyacrylamide was added in the form of a mixed solution: 0.1 g of polyacrylamide was dissolved in 3 g of water, and then added into 10 g of ethylene glycol to form a mixed solution.

[0048] (2) Preparation of ceramic-polymer casting solution

[0049] 140g Ca 0.2 Zr 0.8 o 2-δ Add the electrolyte ceramic powder to 74.6g of the polymer solution obtained in step (1), and stir for 24 hours to make it completely and evenly dispersed in the polymer solution to form a ceramic-polymer casting solution with a viscosity of 26000MPa·s ; Wherein the average particle size of the electrolyte ceramic powder is ...

Embodiment 2

[0057] The described cross section is the preparation method of the hollow fiber electrocatalytic membrane reactor of petal type, comprises the following steps:

[0058] (1) Preparation of polymer solution

[0059] Dissolve 12.5g polyethyleneimine, 0.5g polyacrylamide, 2g polyvinyl butyral in 50g N,N-dimethylformamide-d 7 , to obtain a polymer solution; wherein polyacrylamide is added in the form of a mixed solution: 0.5g of polyacrylamide is dissolved in 5g of water, and then added to 20g of ethylene glycol to form a mixed solution.

[0060] (2) Preparation of ceramic-polymer casting solution

[0061] 145.5g Ca 0.25 Zr 0.75 o 2-δ Add the electrolyte ceramic powder to 79g of the polymer solution obtained in step (1), and fully stir for 30 hours to completely and evenly disperse it in the polymer solution to form a ceramic-polymer casting solution with a viscosity of 26400MPa·s; The average particle size of the electrolyte ceramic powder is 4 μm.

[0062] (3) Preparation ...

Embodiment 3

[0069] The described cross section is the preparation method of the hollow fiber electrocatalytic membrane reactor of petal type, comprises the following steps:

[0070] (1) Preparation of polymer solution

[0071] Dissolve 12.5g polysulfone, 0.5g polyacrylamide, 4g polyammonium methacrylate in 50g N,N-dimethylformamide-d 7 , to obtain a polymer solution; wherein polyacrylamide is added in the form of a mixed solution: 0.5 g of polyacrylamide is dissolved in 5 g of water, and then added to 25 g of ethylene glycol to form a mixed solution.

[0072] (2) Preparation of ceramic-polymer casting solution

[0073] 175g Pr 0.25 Zr 0.75 o 2-δ The electrolyte ceramic powder is added to 95g of the polymer solution obtained in step (1), and fully stirred for 30 hours to completely and evenly disperse in the polymer solution to form a ceramic-polymer casting solution with a viscosity of 25500MPa·s; The average particle size of the electrolyte ceramic powder is 5 μm.

[0074] (3) Prep...

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Abstract

The invention belongs to the technical field of electro-catalysis membrane reactors and in particular relates to a method for preparing a hollow fiber electro-catalysis membrane reactor with a petal-shaped cross section. The method comprises the following steps: preparing a polymer solution, preparing a ceramic-polymer casting membrane liquid, preparing a hollow fiber electrolyte membrane supportblank of which the cross section is petal-shaped, preparing a hollow fiber electrolyte membrane support of which the cross section is petal-shaped, and preparing the hollow fiber electro-catalysis membrane reactor of which the cross section is petal-shaped. By adopting the novel hollow fiber electrolyte membrane support, the outer surface area of the hollow fiber electro-catalysis membrane reactoris increased to a certain extent, the output power and the hydrogen generation velocity are greatly increased, surface reactions are promoted, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of electrocatalytic membrane reactors, and in particular relates to a method for preparing a hollow fiber electrocatalytic membrane reactor whose cross section is petal-shaped. Background technique [0002] Electrocatalytic membrane reactor, also known as solid oxide fuel electrolysis cell, is an electrochemical device that converts electrical energy into chemical energy, and its principle is the reverse process of solid oxide fuel cell. Ceramic membrane is a kind of diaphragm with high selective permeability and separation function made of ceramic materials. It has good chemical stability, can be used under high temperature conditions, and has anti-microbial ability; and because of its high mechanical strength, separation With the advantages of high efficiency and long service life, it can be widely used in the field of separation and purification and the field of catalytic reaction. The microtubular solid...

Claims

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Application Information

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IPC IPC(8): B01J19/00B01D71/02B01D67/00B01D69/08
CPCB01D67/0039B01D69/08B01D71/02B01J19/00
Inventor 孟波韩宁刘少敏孟秀霞庄淑娟靳昀
Owner SHANDONG UNIV OF TECH
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