Method for preparing doping type carbon dioxide adsorbent ceramic

A carbon dioxide and adsorbent technology, applied in the field of preparing doped carbon dioxide adsorbent ceramics, can solve problems such as low adsorption efficiency, and achieve the effects of uniform distribution, high degree of crystallization and fine size

Active Publication Date: 2017-02-01
方兴河北新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, generally speaking, the adsorption efficiency of lithium silicate is relatively low. If ion doping is performed, it is easier to obtain products with higher adsorption rates.

Method used

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  • Method for preparing doping type carbon dioxide adsorbent ceramic

Examples

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Effect test

Embodiment 1

[0028] A method for preparing doped carbon dioxide adsorbent ceramics, characterized in that: comprising the following preparation steps:

[0029] (1) Raw materials are mixed, the silicon source is TEOS, the lithium source is lithium nitrate; the alcohol solvent is benzyl alcohol, and all raw materials are high-purity raw materials with a purity of more than 99.9%; Measure and proportion the ingredients, mix them with the alcohol solvent at room temperature, and stir them mechanically for 2 hours to obtain a uniform alcohol solution;

[0030] (2) Mix the above-mentioned homogeneous alcohol solution and the surfactant polyethylene glycol 2000 in a pre-reaction chamber, and then perform a pre-reaction, the temperature of the pre-reaction is 180 degrees Celsius, and the pre-reaction time is 2 hours to obtain a pre-reaction liquid;

[0031] (3) Then transport the pre-reaction liquid to the reaction chamber for alcohol thermal reaction, the reaction temperature is 250 degrees Celsi...

Embodiment 2

[0035] A method for preparing doped carbon dioxide adsorbent ceramics, characterized in that: comprising the following preparation steps:

[0036](1) Raw materials are mixed, the silicon source is TEOS, the lithium source is lithium nitrate; the alcohol solvent is benzyl alcohol, and all raw materials are high-purity raw materials with a purity of more than 99.9%; Measure and proportion the ingredients, mix them with the alcohol solvent at room temperature, and stir them mechanically for 2 hours to obtain a uniform alcohol solution;

[0037] (2) Mix the above-mentioned homogeneous alcohol solution and the surfactant polyethylene glycol 2000 in a pre-reaction chamber, and then perform a pre-reaction, the temperature of the pre-reaction is 170 degrees Celsius, and the pre-reaction time is 2 hours to obtain a pre-reaction liquid;

[0038] (3) Then transport the pre-reaction liquid to the reaction chamber for alcohol thermal reaction, the reaction temperature is 250 degrees Celsiu...

Embodiment 3

[0042] A method for preparing doped carbon dioxide adsorbent ceramics, characterized in that: comprising the following preparation steps:

[0043] (1) Raw materials are mixed, the silicon source is TEOS, the lithium source is lithium nitrate; the alcohol solvent is benzyl alcohol, and all raw materials are high-purity raw materials with a purity of more than 99.9%; Measure and proportion the ingredients, mix them with the alcohol solvent at room temperature, and stir them mechanically for 2 hours to obtain a uniform alcohol solution;

[0044] (2) Mix the above-mentioned homogeneous alcohol solution and the surfactant polyethylene glycol 2000 in a pre-reaction chamber, and then perform a pre-reaction, the temperature of the pre-reaction is 190 degrees Celsius, and the pre-reaction time is 1 hour to obtain a pre-reaction liquid;

[0045] (3) The pre-reaction solution is then transported to the reaction chamber for alcohol thermal reaction at a reaction temperature of 260 degrees...

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Abstract

The invention relates to a method for preparing a doping type carbon dioxide adsorbent ceramic. The doping type carbon dioxide adsorbent ceramic prepared by adopting the method is smaller in particle size, larger in specific surface area, high in material activity and strong in carbon dioxide adsorbing capability, and industrial production can be achieved through large-scale preparation.

Description

technical field [0001] The invention belongs to the field of carbon dioxide adsorbents, in particular to a method for preparing doped carbon dioxide adsorbent ceramics. The adsorbent is lithium silicate doped with potassium ions. 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. The combustion of fossil fuels is the main source of CO2 emissions. In view of the high temperature of the exhaust gas discharged from the high-temperature furnace,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/10B01J20/30B01D53/02
CPCB01D53/02B01D2257/504B01J20/041B01J20/10Y02C20/40
Inventor 刘丽梅
Owner 方兴河北新材料科技有限公司
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