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A kind of selective adsorption cooling material and preparation method and application thereof

A selective and powder technology, applied in the field of selective adsorption and cooling materials and their preparation, can solve the problems of limited cooling effect and reduced flue gas quality, and achieve the effects of low cost, reduced flue gas temperature, and strong application and promotion value.

Active Publication Date: 2022-08-02
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above cooling measures can partially reduce the flue gas temperature, but there are still some shortcomings
Cooling through cooling materials can achieve a good cooling effect, but it will also have an adsorption effect on glycerin, thereby reducing the quality of flue gas; cooling through structural design, although it has little effect on the concentration of flue gas, the cooling effect is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Screening of raw materials

[0029] The hydrated magnesium-aluminosilicate clay (attapulgite with a pore size of 0.37-0.64nm, the manufacturer is Sishui Yitong Bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide were successively passed through a 200-mesh standard sieve to homogenize for use;

[0030] (2) Ingredients and granulation

[0031] Weigh 50g of hydrated magnesium-aluminosilicate clay, 1g of aluminum hydroxide, and 49g of activated carbon powder and stir evenly, then weigh 10g of polyvinyl alcohol solution with a mass fraction of 15% and mix with the above powder for grinding and granulation;

[0032] (3) Forming and first calcination

[0033] Weigh 2g of the granulated mud and slowly add it to the mold and pressurize it to 10MPa. After maintaining the pressure for 1min, take out the sample and repeat the green body molding 50 times to obtain 50 porous ceramic green bodies, which are placed in a kiln at 1100 °C. calcined at ℃ for 1.5h to ...

Embodiment 2

[0041] (1) Screening of raw materials

[0042] The hydrated magnesium-aluminosilicate clay (attapulgite with a pore size of 0.37-0.64nm, the manufacturer is Sishui Yitong Bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide were successively passed through a 200-mesh standard sieve to homogenize for use;

[0043] (2) Ingredients and granulation

[0044] Weigh 60g of hydrated magnesium-aluminosilicate clay, 5g of aluminum hydroxide, and 35g of activated carbon powder and stir evenly, then weigh 8g of polyvinyl alcohol solution with a mass fraction of 1% and mix with the above powder for grinding and granulation;

[0045] (3) Forming and first calcination

[0046]Weigh 2g of the granulated mud material and slowly add it to the mold and pressurize it to 15MPa, take out the sample after maintaining the pressure for 3min, repeat the green body molding 50 times to obtain 50 porous ceramic green bodies, and place them in a kiln at 1300 ℃. calcined at ℃ for 3h to obt...

Embodiment 3

[0054] (1) Screening of raw materials

[0055] The hydrated magnesium-aluminosilicate clay (attapulgite with a pore size of 0.37-0.64nm, the manufacturer is Sishui Yitong Bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide were successively passed through a 200-mesh standard sieve to homogenize for use;

[0056] (2) Ingredients and granulation

[0057] Weigh 55g of hydrated magnesium-aluminosilicate clay, 3g of aluminum hydroxide, and 42g of activated carbon powder and stir evenly, then weigh 9g of polyvinyl alcohol solution with a mass fraction of 7% and mix with the above powder for grinding and granulation;

[0058] (3) Forming and first calcination

[0059] Weigh 2g of the granulated mud material and slowly add it to the mold and pressurize it to 15MPa, take out the sample after maintaining the pressure for 1min, repeat the green body molding 50 times to obtain 50 porous ceramic green bodies, and place them in a kiln at 1300 ℃. calcined at ℃ for 1.5h to ...

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Abstract

The invention discloses a selective adsorption and cooling material suitable for heating cigarettes and a preparation method thereof. The adsorption and cooling material is composed of hydrated magnesium aluminosilicate clay, aluminum source powder, activated carbon powder, a molding agent solution and a surface modifier. prepared. The hydrated magnesium-aluminosilicate clay, aluminum source, activated carbon powder powder and molding agent solution are prepared into porous ceramics through batching, granulation, molding, calcination and other processes, and the porous ceramics are immersed in the surface modifier solution. , After drying, the adsorption cooling material is obtained. The adsorption and cooling material can not only achieve selective adsorption of water in the smoke of heated cigarettes and non-adsorption of glycerin, but also can effectively reduce the temperature of the flue gas without affecting the smoking effect, and at the same time, the cost is low and it is easy to scale It has broad market application prospects.

Description

technical field [0001] The invention provides a selective adsorption cooling material and a preparation method and application thereof, belonging to the technical field of new materials. Background technique [0002] Heated cigarettes are an important form of new tobacco products, mainly through heating and distillation (below 500 ℃) to heat tobacco materials to release aerosols. Compared with traditional cigarettes, heated cigarettes only heat the tobacco material instead of burning it, which reduces the harmful components produced during the high-temperature combustion of tobacco, and also significantly reduces the release of sidestream smoke and ambient smoke. Although the mainstream heated cigarettes in the international market, such as Philip Morris International's iQOS, British American Tobacco's Glo, Japan Tobacco's Ploom Tech and other products have been selling well, domestic research on heated cigarettes is still in the research and development stage. Due to the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B38/02C04B33/13C04B33/04C04B41/81B01J20/20B01J20/30
CPCC04B38/068C04B38/02C04B33/04C04B33/13C04B41/81B01J20/12B01J20/20C04B2235/6567C04B2235/96B01J2220/4806
Inventor 金俊阳
Owner NANJING TECH UNIV