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Composite material, its manufacture and use in gas purification

一种复合材料、吸附材料的技术，应用在有机和无机复合材料领域，能够解决高能耗、烷醇胺溶液消耗大能量、腐蚀等问题

Inactive Publication Date: 2019-02-05
NANYANG TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the gas adsorption process has become a widely used mature technology, it has the disadvantage of high energy consumption because the regeneration of the alkanolamine solution requires a large amount of energy.
In addition, the process has corrosion problems

Method used

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  • Composite material, its manufacture and use in gas purification
  • Composite material, its manufacture and use in gas purification
  • Composite material, its manufacture and use in gas purification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Example 1: Preparation of Mesoporous Silica / Acrylamide Composite

[0107] 40g of mesoporous silica (MCM-41) powder, 0.7g of a commercially available dispersant (ammonium polyacrylate, catalog number: 8678, Monomer-Polymer and Dajac Labs) and 0.2g of polyvinylpyrrolidone were added to the premixed solution, The premix solution consisted of 24 g of acrylamide (AM) and 1.6 g of N,N'-methylenebisacrylamide (MBAM) dissolved in 96 g of water. After the resulting mixture was subjected to planetary ball milling for more than 30 minutes, it was degassed to obtain a homogenate. Then, 24 g of a 2% by weight ammonium persulfate (APS) solution and 12 g of a 2% by weight N,N,N',N'-tetramethylethylenediamine (TEMED) solution were added to the homogenate in order to obtain a mixed slurry. Subsequently, the mixed slurry was sucked into a silicone tube and heated in an oven at 80° C. for 45 minutes. After this time, the mixture is pushed out, sheared and lyophilized. After testing, t...

Embodiment 2

[0110] Example 2: Preparation of APTES-grafted mesoporous silica / acrylamide composite

[0111] Add 15.608 mL of 3-aminopropyltriethoxysilane (APTES, 99%, Sigma-aldrich company) into deionized water, and then adjust the pH value to 2-4 by adding nitric acid solution under constant stirring conditions. After adding 40 g of mesoporous silica MCM-41 powder to the solution, stirring was continued overnight. Subsequently, 0.7 g of a commercially available dispersant (ammonium polyacrylate, catalog number: 8678, Monomer-Polymer and Dajac Labs), 0.2 g of polyvinylpyrrolidone, 30 g of acrylamide (AM) and 2 g of N , N'-methylenebisacrylamide (MBAM). After the resulting mixture was subjected to planetary ball milling for more than 30 minutes, it was degassed to obtain a homogenate. Then, 30 g of a 2% by weight ammonium persulfate (APS) solution and 15 g of a 2% by weight N,N,N',N'-tetramethylethylenediamine (TEMED) solution were added to the homogenate , to obtain a mixed slurry. Sub...

Embodiment 3

[0112] Example 3: Preparation of mesoporous silica / acrylamide composite with SBA

[0113] 20g of mesoporous silica (SBA-15) powder, 0.7g of a commercially available dispersant (ammonium polyacrylate, catalog number: 8678, Monomer-Polymer and Dajac Labs) and 0.2g of polyvinylpyrrolidone were added to the premixed solution, The premix solution consisted of 24 g of acrylamide (AM) and 1.6 g of N,N'-methylenebisacrylamide (MBAM) dissolved in 96 g of water. After the resulting mixture was subjected to planetary ball milling for more than 30 minutes, it was degassed to obtain a homogenate. Then, 24 g of a 2% by weight ammonium persulfate (APS) solution and 12 g of a 2% by weight N,N,N',N'-tetramethylethylenediamine (TEMED) solution were added to the homogenate in order to obtain a mixed slurry. Subsequently, the mixed slurry was sucked into a silicone tube and heated in an oven at 80° C. for 45 minutes. After this time, the mixture is pushed out, sheared and lyophilized. Wherein...

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Abstract

Disclosed herein is a composite material formed from an inorganic mesoporous, or mesoporous-like, material, including mesoporous silica, mesoporous carbon, mesoporous zinc oxide, bentonite and kaolinite clay that is dispersed throughout a polymeric matrix formed by a crosslinked polymer. The crosslinked polymer has acidic- or basic-residues, wherein the basic residues are formed from a monomeric material with at least one ethylenic bond and an amide functional group (e.g. acrylamide), and the acidic residues are formed from a monomer material with at least one ethylenic bond and a carboxylic acid functional group (e.g. acrylic acid). Said composite material may also optionally have further acidic- or basic-residues grafted onto the inorganic mesoporous material. The resulting composite material may be used to remove acidic or basic impurities from a gas in need thereof and can be easily regenerated.

Description

technical field [0001] The present invention concerns the development of organic and inorganic composite materials that can be molded into any desired shape and that can be used to purify gases of acidic and / or basic impurities. Background technique [0002] Fossil fuels, as a non-renewable source of energy, are expected to run out by the end of the 21st century. Among them, gasoline and diesel obtained by fractional distillation of crude oil in the refining process are the main fuel sources for modern automobiles. However, the combustion of gasoline and diesel can produce NO which is harmful to the environment x , SO x 、H 2 Undesirable compounds such as S and particulate emissions. The rapid depletion and environmental pollution of fossil fuels is expected to drive the search for cleaner alternative powertrains for such vehicles. [0003] One candidate alternative to internal combustion engine vehicles is fuel cell powered vehicles. Fuel cell vehicles are expected to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/00B01J20/06B01J20/10B01J20/12B01D53/40B01D53/42
CPCB01J20/06B01J20/12B01D53/40B01D53/42B01D53/02B01D53/685B01D53/82B01D2253/102B01D2253/106B01D2253/108B01D2253/11B01D2253/202B01D2253/25B01D2253/308B01D2256/16B01D2257/2025B01J20/20B01J20/3085B01J20/3204B01J20/3248B01J20/28026C01B3/508C01B2203/0465C01B2203/0495C01B2203/066B01J20/103B01J20/0244B01J20/28016B01J20/327B01D2253/1124
Inventor 张兰曾少华陈伟年何洪泉
Owner NANYANG TECH UNIV
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