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Adsorbent / foamed aluminium compound adsorbing material and its preparation method

A composite adsorption material and adsorbent technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of mass transfer performance degradation, etc., and achieve the effects of reducing adverse effects, excellent mechanical properties, and not easy to deform and damage

Inactive Publication Date: 2005-08-10
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

The polyaniline / zeolite composite adsorbent described in the article "Research on Enhanced Thermal Conductivity in Solar Adsorbers" (1998, 19: 186-190) also only increases the thermal conductivity by 2 to 4 times, and The mass transfer performance has decreased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The adsorbent in this embodiment adopts spherical zeolite particles or spherical molecular sieve particles.

[0010] Fill spherical zeolite particles or spherical molecular sieve particles with a diameter of 3 to 6 mm into a cylindrical mold with a height of 150 mm to a height of 60 mm, and then add salt particles with a diameter of about 0.5 mm according to the bulk volume ratio of salt to adsorbent particles of 4:6. Fill the gap evenly, pressurize to 2-3atm for pre-compression, and preheat to 500-600°C at the same time, then pour molten aluminum into the mold according to the volume ratio of molten aluminum and adsorbent particles 2:8, and pressurize to 2 to 5 atm to make it seep into the particle gap, take it out after solidification and cooling is sufficient, wash it with water to dissolve the salt particles in it, and finally dry and activate it at a constant temperature of 350°C for 3 hours to obtain the adsorbent / foamed aluminum composite Adsorbent material.

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Abstract

A composite adsorbent / foam aluminium adsorption material is prepared through filling spherical zeolite particles or molecular sieve particles in mould, proportionally adding edible salt particles, pressurizing repressing while preheating, proportionally adding molten aluminium, pressing, cooling while solidifying water washing for removing salt, and holding the temp at 350 deg.C for 3 hr. Its advantages are high structure strength and high heat conductivity.

Description

Technical field: [0001] The invention belongs to an adsorption material for adsorption refrigeration, in particular to an adsorbent / foam aluminum composite adsorption material and a preparation method thereof. Background technique: [0002] Zeolite and molecular sieve are commonly used adsorption materials in adsorption refrigeration. They are porous media materials with low thermal conductivity. For example, the thermal conductivity of a zeolite particle stacked bed is 0.08-0.1W / mK, which makes the adsorption and desorption cycle of the refrigeration system long. low efficiency. In November 1992, the "Solid Sorption Refrigeration Symposium" (Solid Sorption Refrigeration Sym., Paris, France, 1992, Nov.: 44-52) held in Paris, France, mentioned a kind of direct doping in the adsorbent particles The method of aluminum powder and iron powder, but this method is difficult to make these high thermal conductivity materials form a continuous phase, so the effective thermal conducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30
Inventor 胡芃陈则韶程和法
Owner UNIV OF SCI & TECH OF CHINA
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