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Method for preparing carbon dioxide adsorbent ceramic by template method

A carbon dioxide and adsorbent technology, which is applied in the field of carbon dioxide adsorbent ceramics prepared by the template method, can solve the problems of low adsorption capacity and low adsorption rate of lithium zirconate, achieve strong carbon dioxide adsorption capacity, promote gelation process, and high material activity.

Inactive Publication Date: 2017-05-31
姚月祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Speaking of the low adsorption capacity and adsorption rate of lithium zirconate, it needs to be further improved

Method used

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  • Method for preparing carbon dioxide adsorbent ceramic by template method

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Embodiment 1

[0029] A method for preparing carbon dioxide adsorbent ceramics by a template method, comprising the following preparation steps:

[0030] (1) prepare materials, zirconium source is zirconium oxychloride octahydrate, and lithium source is lithium nitrate; Catalyst is acidic catalyst; Lye is ammoniacal liquor; Binding agent is glycerol; Acrylamide;

[0031] (2) Dissolve the zirconium source, lithium source, catalyst, binder, and templating agent in deionized water according to a certain ratio, then slowly add lye, and stir at 80°C for 3 hours to form a transparent sol;

[0032] (3) Then raise the temperature to 85°C, add a coagulation accelerator to obtain a gel precursor;

[0033] (4) Grind and disperse the lithium zirconate precursor in a mortar, add activated carbon, grind again, and then carry out cold isostatic pressing. Secondary sintering at 850°C for 2 hours, followed by three sintering at 850°C for 2 hours to obtain carbon dioxide adsorbent ceramics.

[0034] The ac...

Embodiment 2

[0038] A method for preparing carbon dioxide adsorbent ceramics by a template method, comprising the following preparation steps:

[0039] (1) prepare materials, zirconium source is zirconium oxychloride octahydrate, and lithium source is lithium nitrate; Catalyst is acidic catalyst; Lye is ammoniacal liquor; Binding agent is glycerol; Acrylamide;

[0040] (2) Dissolve the zirconium source, lithium source, catalyst, binder, and templating agent in deionized water according to a certain ratio, then slowly add lye, and stir at 80°C for 3 hours to form a transparent sol;

[0041] (3) Then raise the temperature to 85°C, add a coagulation accelerator to obtain a gel precursor;

[0042] (4) Grind and disperse the lithium zirconate precursor in a mortar, add activated carbon, grind again, and then carry out cold isostatic pressing. Secondary sintering at 850°C for 2 hours, followed by three sintering at 850°C for 2 hours to obtain carbon dioxide adsorbent ceramics.

[0043] The ac...

Embodiment 3

[0047] A method for preparing carbon dioxide adsorbent ceramics by a template method, comprising the following preparation steps:

[0048] (1) prepare materials, zirconium source is zirconium oxychloride octahydrate, and lithium source is lithium nitrate; Catalyst is acidic catalyst; Lye is ammoniacal liquor; Binding agent is glycerol; Acrylamide;

[0049] (2) Dissolve the zirconium source, lithium source, catalyst, binder, and templating agent in deionized water according to a certain ratio, then slowly add lye, and stir at 80°C for 3 hours to form a transparent sol;

[0050] (3) Then raise the temperature to 85°C, add a coagulation accelerator to obtain a gel precursor;

[0051] (4) Grind and disperse the lithium zirconate precursor in a mortar, add activated carbon, grind again, and then carry out cold isostatic pressing. Secondary sintering at 900°C for 2 hours, followed by three sintering at 900°C for 2 hours to obtain carbon dioxide adsorbent ceramics.

[0052] The ac...

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Abstract

The invention relates to a method for preparing a carbon dioxide adsorbent ceramic by a template method. The method comprises the following steps: (1) preparing materials; (2) dissolving a zirconium source, a lithium source, a catalyst, a binding agent and a template agent into deionized water according to a certain ratio, then slowly adding alkali liquor, stirring the mixture for 2-4 hours at 75-85 DEG C, so as to form a transparent sol; (3) subsequently raising the temperature to 85 DEG C, and adding a coagulant to obtain a gel precursor; (4) grinding and dispersing the lithium zirconate precursor in a mortar, adding activated carbon; grinding again, and then carrying out cold isostatic compaction; after compaction, performing first sintering at 300-400 DEG C for 1-2 hours; performing secondary sintering at 550-650 DEG C for 1-2 hours; performing third sintering at 800-900 DEG C for 1-2 hours, so as to obtain the carbon dioxide adsorbent ceramic.

Description

technical field [0001] The invention belongs to the field of carbon dioxide adsorbents, in particular to a method for preparing carbon dioxide adsorbent ceramics by a template method. Background technique [0002] In recent years, with the rapid economic development and the continuous acceleration of the industrialization process, the emission of CO2, the most important greenhouse gas, has also increased day by day, and the environmental problems caused by it have become the focus of the world. Reducing the emission of CO2 and other greenhouse gases into the atmosphere and protecting the safety of the human living environment is one of the global core issues that need to be solved urgently, and it has attracted more and more attention from all countries in the world. [0003] The purpose of absorption separation is to obtain a continuous high-concentration gas stream at high pressure in order to transfer CO2 to storage tanks or sequester it. According to the different proce...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B35/48C04B35/624C04B35/64B01J20/04B01J20/30B01D53/02
CPCB01D53/02B01D2253/10B01D2257/504B01J20/04C04B35/48C04B35/624C04B35/64C04B38/068C04B2235/661C04B38/067C04B38/0054Y02C20/40
Inventor 姚月祥
Owner 姚月祥
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