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High-temperature CO2 adsorbing material and application method of high-temperature CO2 adsorbing material in adsorbing enhancement hydrogen production reaction

An adsorption material, CO2 technology, applied in the field of high-temperature CO2 adsorption materials and its application in the adsorption-enhanced hydrogen production reaction, to achieve the effect of high thermal stability and high recyclability

Active Publication Date: 2015-04-01
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At this stage, regarding high temperature CO 2 As adsorption materials, more attention has been paid to alkali metal zirconates and alkali metal silicates. At present, there is no alkali metal titanate in CO 2 Research reports on adsorption and storage

Method used

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  • High-temperature CO2 adsorbing material and application method of high-temperature CO2 adsorbing material in adsorbing enhancement hydrogen production reaction
  • High-temperature CO2 adsorbing material and application method of high-temperature CO2 adsorbing material in adsorbing enhancement hydrogen production reaction
  • High-temperature CO2 adsorbing material and application method of high-temperature CO2 adsorbing material in adsorbing enhancement hydrogen production reaction

Examples

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Effect test

example 1

[0021] Example 1: Preparation of M by solid-phase method 2 Ti 2 o 5 (M=K + , Li + 、Na + or Cs + ) specific steps.

[0022]Preparation of M by solid-phase method 2 Ti 2 o 5 , weigh a certain amount of solid M in proportion 2 CO 3 and a certain amount of solid TiO 2 , put the two into an agate mortar, mix them evenly and grind them into fine powders, then put the mixed powders into a 100ml porcelain crucible, place them in a muffle furnace at a high temperature of 850°C for 10 hours, and take them out after cooling to room temperature , and then put it into the agate mortar again and grind it to a fine powder.

example 2

[0023] Example 2: Preparation of M by solid phase method 2-x N x Ti 2 o 5 (M and N are alkali metal K + , Li + 、Na + , or Cs + , x is the specific steps of 0-2).

[0024] Preparation of M by solid-phase method 2-x N x Ti 2 o 5 , weigh a certain amount of solid M in proportion 2 CO 3 , N 2 CO 3 and a certain amount of solid TiO 2 , put the three into an agate mortar, mix them evenly and grind them into fine powders, then put the mixed powders into a 100ml porcelain crucible, place them in a muffle furnace at a high temperature of 850°C for 10 hours, cool to room temperature and take them out , and then put it into the agate mortar again and grind it to a fine powder.

example 3

[0025] Example 3: K prepared in Example 1 2 Ti 2 o 5 CO at different temperatures 2 Adsorption properties.

[0026] K prepared by the preparation method of example 1 2 Ti 2 o 5 CO at different temperatures 2 The adsorption properties show that K 2 Ti 2 o 5 to CO 2 The adsorption performance increases with the increase of temperature, and when the temperature reaches 750 °C, its CO 2 maximum adsorption capacity. The specific experimental data are as follows: K 2 Ti 2 o 5 The adsorption increase is 0.62wt.% at 200°C, 1.58wt.% at 300°C, 1.67wt.% at 350°C, and 5wt.% at 700°C , when the temperature continues to rise to 750 ° C, its adsorption performance can reach 6wt.%.

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Abstract

The invention provides a high-temperature CO2 adsorbing material. The chemical composition is M(2-x)NxTi2O5, wherein M and N are alkali metal K<+>, Li<+>, Na<+> or Cs<+>; and x is 0-2. The invention also provides an application method of the high-temperature CO2 adsorbing material in adsorbing enhancement hydrogen production reaction. According to the application method, the adsorbing material and a hydrogen production catalyst are used for hydrogen production reaction together and absorb CO2 of products online simultaneously during generation of hydrogen production reaction. After saturation of absorption of CO2 by the material, the adsorbing material is regenerated and reused through a temperature varying or pressure varying manner. Because the CO2 adsorbing material has superior heat stability and circulation usability, the CO2 adsorbing material has potential widespread application in an adsorbing enhancement hydrogen production reaction process.

Description

technical field [0001] This patent provides a high temperature CO 2 Adsorbent material and the above CO 2 Application methods of adsorbent materials in adsorption-enhanced hydrogen production reactions. Background technique [0002] As we all know, fossil fuels are still the main fuel and energy source in the world so far, and have been developed in large quantities because of their large energy release and convenient use. As of 2010, fossil fuels accounted for 87% of primary energy. Although countries have been committed to the development of new energy, new energy is still in the research and development stage due to its high cost and difficulty in industrialization. Fossil fuel is still the main source of energy consumption. main body. It is precisely because of the increase in energy consumption of human society and the excessive dependence on oil, coal, and natural gas that it has led to various environmental problems that cannot be ignored due to their combustion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/28B01J20/30B01D53/02C01B3/02
CPCB01D53/02B01D2253/1124B01D2257/504B01J20/06B01J20/28B01J20/30B01J2220/42C01B3/02Y02C20/40Y02P20/151
Inventor 王强郑倩雯
Owner BEIJING FORESTRY UNIVERSITY