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A method for synthesizing molecular sieve membrane porous ceramic carrier

A technology of porous ceramics and molecular sieves, applied in the direction of molecular sieve compounds, molecular sieves and alkali exchange compounds, chemical instruments and methods, etc., can solve problems such as difficult operation and complicated pretreatment process, so as to ensure effectiveness and temporary, improve Separation performance, the effect of simple processing method

Inactive Publication Date: 2017-10-20
SHENYANG UNIV
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Problems solved by technology

Although the pretreatment method of the above carrier can effectively improve the permeability of the membrane, the carriers used are all ceramic sheets, and the pretreatment process of the carrier is too complicated to operate, and at the same time, the above treatment method is not necessarily suitable for treating Tubular carrier

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] 1) First measure 300 ml of deionized water and put it into a beaker, then add gum arabic, carboxymethyl cellulose, tannic acid, soluble starch, sucrose, glycerin, the addition of several substances is 0.2%, 0.3%, 2%, 1%, 2%, 1%, prepared into a mixed solution, stirred at room temperature for 3 hours before use.

[0016] 2) Put eight 9 cm tubular porous silica ceramic supports after high temperature treatment at 500°C into the above solution, soak for 20 minutes, take them out and dry them, and repeat this 5 times.

[0017] 3) Put the above-mentioned treated tubular porous silica ceramic carrier into a tube furnace for carbonization at a high temperature of 400° C., and the high temperature carbonization time is 2 hours. After the experiment, it can be seen that the tubular porous silica ceramic carrier has changed from white to black, the pore size and porosity of the carrier have become significantly smaller, and the pretreatment has achieved the expected effect.

[0...

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Abstract

The invention provides a method for synthesizing a porous ceramic carrier of a molecular sieve membrane, and relates to a method for synthesizing a porous ceramic carrier. The method comprises the following steps: firstly, putting 300ml of deionized water into a beaker; putting a porous ceramic carrier treated at high temperature of 500 DEG C into the mixed solution to conduct sufficient soaking; drying the porous ceramic carrier after the mixed solution is sufficiently infiltrated into the porous ceramic carrier; putting the dried porous ceramic carrier into a tube furnace, performing high-temperature charring for 1-2 hours at 400-500 DEG C under an air isolated condition. By adopting the method, the separation performance of the synthesized molecular sieve membrane can be effectively improved. Furthermore, the pre-treatment method is simple, can be used in a laminar carrier, tubular and multi-channel porous ceramic carriers, and is convenient for large-scale application and popularization.

Description

technical field [0001] The invention relates to an effective pretreatment method for a ceramic carrier, in particular to a method for synthesizing a molecular sieve membrane porous ceramic carrier. Background technique [0002] With the increasing energy consumption, traditional fossil energy resources such as oil, coal and natural gas will be depleted, which prompts human beings to take practical measures to further develop and utilize renewable energy, such as the use of biomass fermentation to Production of fuel ethanol. It is estimated that by 2020, the production cost of using cellulose to hydrolyze sugar first, and then use fermentation to prepare ethanol will be reduced to 1 / 3 to 1 / 4 of the sales price of ethanol, and the concentration of product ethanol in the fermentation broth will be reduced. Big improvement. In the current ethanol fermentation broth, the ethanol content of the product is generally about 5%. A higher concentration of ethanol can inhibit the furt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/85C01B39/00C01B37/00
CPCC01B37/00C01B39/00C04B41/009C04B41/5001C04B41/85C04B35/14C04B35/10C04B41/4592C04B41/0072
Inventor 陈红亮杨继松侯永侠王洪王鑫李玉双宋雪英
Owner SHENYANG UNIV
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