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
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  • Application Information

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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 easi

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
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Example Embodiment

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

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

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

[0028] (3) Put the composite material obtained in step 2 into a 60°C oven and vacuum dry for 6 hours, so that the amino modifier and the porous material are fully reacted to obtain amino functionalized porous CO 2 Adsorption material.

Example Embodiment

[0029] Example 2: Prepare composite adsorbent according to the following steps

[0030] (1) Put the zeolite molecular sieve into an oven at 90°C and dry for 5 hours; add 100 parts by weight of the dried zeolite molecular sieve SAPO-34, 50 parts by weight of diethylene triamine, and 4 parts by weight of polymethyl in the high-speed stirring mixer. Acrylate is mixed for 10 minutes at 300 rpm, and the stirring is stopped for 3 minutes every 5 minutes to prevent friction and heat from causing material adhesion;

[0031] (2) Send the above-mentioned pre-mixed composite material to the jet mill for full mixing, the speed is 1200 r / min, and the crushing time is 50 min;

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

Example Embodiment

[0033] Example 3: Prepare composite adsorbent according to the following steps

[0034] (1) Put the silica into an oven at 80°C and dry 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 the high-speed stirring mixer. Coupling agent, mixing for 20 minutes, rotating speed 50rpm, of which, every 5 minutes of stirring, stop for 3 minutes to prevent friction and heat from causing material adhesion;

[0035] (2) Send the above-mentioned pre-mixed composite material to an ultrasonic pulverizer for full mixing, with a rotation speed of 2000 r / min and a pulverization time of 30 min;

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