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Core-shell type adsorbing material and preparation method thereof

An adsorption material, core-shell type technology, applied in the field of core-shell type adsorption material and its preparation, can solve the problems of reduced service life, weak force of porous adsorption material and binder, easy pulverization, etc.

Active Publication Date: 2020-07-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology is simple, there is no pressurization process, and it will not cause a large decrease in the specific surface area, but the force between the porous adsorption material and the binder is weak, and it is easy to pulverize, resulting in a decrease in service life

Method used

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  • Core-shell type adsorbing material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Weigh 100 g HKUST-1 and 5 g carboxymethyl cellulose into a beaker, mix them evenly with a resonance mixer, pour them into a beaker filled with 500 mL of water, stir mechanically for 10 min, and transfer to a 500 mL portion In the liquid funnel, drop it into the Dewar bottle filled with liquid nitrogen at a rate of 30 drops / min. After dropping, take out the particles at the bottom of the Dewar bottle with a plastic colander, put it in a freeze-drying box, and dry it at -20 °C. 12 h, after cooling down, place the molded body in a beaker filled with saturated sodium silicate and immerse it, take it out after 10 seconds and put it in a 20 wt% sulfuric acid solution, take it out after 10 seconds, age at 20 °C for 10 h, wash with water, After immersing in 0.1 wt% ammonia water for 10 h, it was dried at 100 °C for 12 h to obtain core-shell adsorption material A. In core-shell adsorption material A, the weight ratio of HKUST-1, binder and silica gel calculated as silica is 1:0....

Embodiment 2

[0042]Weigh 100 g HKUST-1 and 10 g carboxymethyl cellulose into a beaker, mix them evenly with a resonance mixer, pour them into a beaker filled with 500 mL of water, stir mechanically for 10 min, and transfer to a 500 mL portion In the liquid funnel, drop it into the Dewar bottle filled with liquid nitrogen at a rate of 30 drops / min. After dropping, take out the particles at the bottom of the Dewar bottle with a plastic colander, put it in a freeze-drying box, and dry it at -20 °C. After cooling down for 12 h, place the molded body in a beaker filled with saturated sodium silicate and immerse it, take it out after 10 seconds and place it in a 20 wt% sulfuric acid solution, then take it out after 10 seconds and age it at 20°C for 10 h, wash it with water, and put it in The core-shell adsorption material B was obtained after soaking in 0.1 wt% ammonia water for 10 h and then drying at 100 °C for 12 h. In the core-shell adsorption material B, the weight ratio of HKUST-1, binder ...

Embodiment 3

[0044] Weigh 100 g HKUST-1 and 15 g carboxymethyl cellulose into a beaker, mix them evenly with a resonance mixer, pour them into a beaker filled with 500 mL of water, stir mechanically for 10 min, and transfer to a 500 mL portion In the liquid funnel, drop it into the Dewar bottle filled with liquid nitrogen at a rate of 30 drops / min. After dropping, take out the particles at the bottom of the Dewar bottle with a plastic colander, put it in a freeze-drying box, and dry it at -20 °C. After cooling down for 12 h, the molded body was immersed in a beaker filled with saturated sodium silicate, taken out after 10 seconds and placed in a 20 wt% sulfuric acid solution, and aged at 20 °C for 10 hours after 10 seconds, washed with water, and placed in a After immersing in 0.1 wt% ammonia water for 10 h, it was dried at 100 °C for 12 h to obtain core-shell adsorption material C. In the core-shell adsorption material C, the weight ratio of HKUST-1, binder and silica gel calculated as si...

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Abstract

The invention discloses a core-shell type adsorbing material and a preparation method thereof. A shell layer of the core-shell type adsorbing material is composed of silica gel, the interior of the core-shell type adsorbing material is coated with an adsorbing material and a binding agent, and the weight ratio of the adsorbing material to the binding agent to the silica gel based on silicon dioxide is 1: (0.05-0.2): (0.5-2). The core-shell type adsorbing material provided by the invention reserves the high specific surface area and high pore volume of an internal adsorbing material, has relatively high gas adsorption capacity and relatively high mechanical strength, is not easy to pulverize, and greatly prolongs the service life.

Description

technical field [0001] The invention relates to a core-shell adsorption material and a preparation method thereof, in particular to a core-shell adsorption material containing a porous material with a high specific surface area and a preparation method thereof. Background technique [0002] With the increasingly stringent environmental regulations and the improvement of people's awareness of environmental protection, seeking large-scale utilization of clean energy is an important direction of national strategy. The combustion products of energy gases such as natural gas and hydrogen are only carbon dioxide and water, which is the most promising clean energy in the next few decades. However, how to efficiently transport these energy gases on a large scale is one of the key issues hindering their popularization and utilization. [0003] Adsorption storage is a new way of energy gas storage and transportation. Energy gas is stored and transported through high-performance adso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/20B01J20/28B01J20/30
CPCB01J20/22B01J20/223B01J20/20B01J20/28011B01J20/28066B01J20/3042
Inventor 孙兆松张胜中范得权张延鹏王红涛张英
Owner CHINA PETROLEUM & CHEM CORP
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