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Method for preparing wear-resistant nano calcium oxide-based carbon dioxide reaction adsorbent

A technology of nano-calcium oxide and adsorbent, which is applied in the field of material manufacturing to achieve the effect of improving wear performance, high stability, and high adsorption capacity

Active Publication Date: 2011-02-02
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not involved in wear resistance

Method used

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  • Method for preparing wear-resistant nano calcium oxide-based carbon dioxide reaction adsorbent
  • Method for preparing wear-resistant nano calcium oxide-based carbon dioxide reaction adsorbent
  • Method for preparing wear-resistant nano calcium oxide-based carbon dioxide reaction adsorbent

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Embodiment 1

[0048] CaCO 3 50g of particles are dispersed in water by ultrasonic waves, adding 15% 225g of aluminum sol, stirring until a uniform slurry, and spray granulation to obtain microsphere particles with a particle size of 20-250μm, which are calcined at 900°C to prepare spherical wear-resistant nano CaO-based CO 2 Reactive sorbent.

Embodiment 2

[0050] CaCO 3 200g of particles are dispersed in water by ultrasonic wave, adding 15% 590g of aluminum sol, stirring until uniform slurry, spray granulation to obtain microsphere particles with a particle size of 20-250μm, and calcining at 850°C to prepare spherical wear-resistant nano CaO-based CO 2 Reactive sorbent.

Embodiment 3

[0052] CaCO 3 80g of particles are dispersed in water by ultrasonic wave, adding 15% 234g of aluminum sol, stirring until uniform slurry, and spraying granulation to obtain microsphere particles with a particle size of 20-250μm, which are calcined at 900°C to prepare spherical wear-resistant nano CaO-based CO 2 Reactive sorbent.

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Abstract

The invention discloses a method for preparing a wear-resistant nano calcium oxide-based carbon dioxide (CO2) reaction adsorbent. The method comprises the following steps of: dispersing calcium carbonate (CaCO3) particles in water; adding aluminasol; stirring until pulp is well distributed; spraying and pelleting to obtain microspherical particles with particle diameter of 20 to 250 mu m; and calcining the microspheric particles to obtain the spherical wear-resistant nano calcium oxide-based CO2 reaction adsorbent. The wear strength of the wear-resistant nano calcium oxide-based CO2 reaction adsorbent can be improved by the method; and the method can be widely applied to industrial processes of removing the CO2 from industrial smoke, removing the CO2 by a reaction, a new adsorption strengthening methane steam reforming hydrogen production process and the like.

Description

technical field [0001] The invention relates to the field of material manufacturing, in particular to a nano-calcium oxide-based CO 2 method of reacting sorbents. Background technique [0002] High temperature calcium oxide based CO 2 Adsorbent, can be used to remove CO from flue gas 2 , reactive adsorption enhanced steam reforming of methane to hydrogen production and chemical heat pump and other technical processes have important application prospects in energy saving and emission reduction, environmental protection, energy utilization and conversion, oil refining and chemical industry. [0003] At present, high-temperature CaO-based CO 2 The research in the field of adsorbent mainly includes the following aspects: [0004] (1) CaO and Al 2 o 3 Compound aspect: [0005] The publication number is CN 1676210 invention patent discloses a kind of highly active calcium-based CO 2 Absorbent and its preparation method. The method uses alcohols, distilled water, aluminum s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/08B01D53/62B01D53/81B01J20/30
CPCB01D2257/504Y02C10/04B01D2251/404Y02A50/20Y02C20/40
Inventor 吴素芳蒋明哲
Owner ZHEJIANG UNIV
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