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Preparation method of amino-functionalized porous CO2 adsorption material

A technology of amino-functionalized and adsorbent materials, which is applied in the field of preparation of amino-functionalized porous adsorbent materials for CO2 adsorption, can solve the problems of affecting CO2 adsorption effect, destroying the pore structure of porous materials, and complicated preparation engineering, etc., and achieves easy industrial production, The effect of large adsorption capacity and simple preparation process

Active Publication Date: 2017-06-30
HUAIYIN TEACHERS COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that a large amount of organic solvent is required in the preparation process, which is easy to cause environmental pollution. At the same time, the pore structure of the porous material is easily damaged during the preparation process, thereby affecting its CO 2 Adsorption effect
At the same time, the preparation engineering is relatively complicated, and it is difficult to meet the requirements of industrial production

Method used

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  • Preparation method of amino-functionalized porous CO2 adsorption material
  • Preparation method of amino-functionalized porous CO2 adsorption material
  • Preparation method of amino-functionalized porous CO2 adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Prepare composite adsorbent according to the following steps

[0026] (1) Dry the attapulgite clay in an oven at 100°C for 4 hours; add 100 parts by weight of dried attapulgite clay, 10 parts by weight of ethylenediamine, and 10 parts by weight of silane coupling agent in a high-speed mixer KH550, mixing for 5 minutes, rotating speed 500rpm;

[0027] (2) Send the above-mentioned pre-mixed composite materials into a mechanical pulverizer for thorough mixing, the speed is 500r / min, and the pulverization time is 120min;

[0028] (3) Put the composite material obtained in step 2 into an oven at 60°C for 6 hours in vacuum to make the amino modifier fully react with the porous material to obtain amino-functionalized porous CO 2 Adsorbent material.

Embodiment 2

[0029] Embodiment 2: prepare composite adsorbent according to the following steps

[0030] (1) Dry the zeolite molecular sieve in an oven at 90°C for 5 hours; add 100 parts by weight of dried zeolite molecular sieve SAPO-34, 50 parts by weight of diethylenetriamine, and 4 parts by weight of polymethyl The acrylate was mixed for 10 minutes at a speed of 300 rpm, and the stirring was stopped for 3 minutes every 5 minutes to prevent frictional heat from causing the material to stick;

[0031] (2) Send the above-mentioned pre-mixed composite materials into the jet mill for thorough mixing, the speed is 1200 r / min, and the grinding time is 50 minutes;

[0032] (3) Put the composite material obtained in step 2 into a vacuum oven at 70°C for 5 hours to fully react the amino modifier with the porous material to obtain amino-functionalized porous CO 2 Adsorbent material.

Embodiment 3

[0033] Embodiment 3: prepare composite adsorbent according to the following steps

[0034] (1) Dry the silica in an oven at 80°C for 6 hours; add 100 parts by weight of dried silica, 60 parts by weight of triethylenetetramine, and 5 parts by weight of titanate in a high-speed mixer Coupling agent, mix for 20 minutes, rotate at 50rpm, and stop for 3 minutes every 5 minutes to prevent friction and heat from sticking the material;

[0035] (2) Send the above-mentioned pre-mixed composite materials into an ultrasonic pulverizer for thorough mixing, the speed is 2000 r / min, and the pulverization time is 30 minutes;

[0036] (3) Put the composite material obtained in step 2 into an oven at 80°C for 4 hours in vacuum to make the coupling agent fully react with silica to obtain amino-functionalized porous CO 2 Adsorbent material.

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Abstract

The invention discloses a preparation method of an amino-functionalized porous CO2 adsorption material. The method comprises: pre-mixing a porous material with certain amino modifier and dispersant in a high speed stirring mixer; sending the pre-mixed porous material to a high-speed ultrafine pulverizer for full shearing, pulverization, mixing and dispersion to obtain a uniformly-mixed porous composite material; and drying the prepared porous composite material in an oven and allowing the modifier to fully react with the porous composite material to obtain the amino-functionalized porous adsorption material. During the preparation process, a large amount of organic solvent is not required, and environmental pollution is not caused. The preparation method is simple and eco-friendly, and is convenient to operate, low in manufacture cost and suitable for industrial production.

Description

technical field [0001] The invention relates to a method for preparing a porous adsorption material, in particular to a CO 2 A method for preparing an amino functionalized porous adsorption material for adsorption. Background technique [0002] Adsorption method is for CO 2 The common method of capture and recovery has the advantages of low energy consumption, large adsorption capacity, simple equipment, convenient operation, high selectivity, and wide application range. The preparation of the adsorbent material is the separation of CO by adsorption 2 One of the key factors of technology. [0003] Amino-functionalized porous adsorption materials have the advantages of large pore volume and high specific surface area, and at the same time, the amino functional groups on the surface can interact with CO 2 reaction to increase CO by chemisorption 2 adsorption selectivity and adsorption capacity. Therefore, amino-functionalized porous materials have been widely used as a n...

Claims

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Application Information

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IPC IPC(8): B01D53/02B01J20/28B01J20/30B01J20/282B01J20/286B01J20/12
CPCB01D53/02B01D2257/504B01J20/0251B01J20/12B01J20/28054B01J20/282B01J20/286Y02C20/40
Inventor 张兴振赵宜江周守勇李梅生褚效中吴飞跃卜翠萍
Owner HUAIYIN TEACHERS COLLEGE
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