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Attapulgite clay base composite adsorbent for adsorption refrigeration and its preparing method and use

A composite adsorption and adsorption refrigeration technology, applied in refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve the problems of high cost and small adsorption capacity of adsorbents, and achieve the effects of low production cost, improved adsorption performance and low price.

Inactive Publication Date: 2008-05-28
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a concavo-convex matrix composite adsorbent for adsorption refrigeration in order to overcome the disadvantages of small adsorption capacity and high cost of the adsorbent developed by the above-mentioned technology. Another purpose of the present invention is to provide the above-mentioned concave-convex matrix composite adsorbent for adsorption refrigeration. The preparation method and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention is further illustrated by the following examples, which do not limit the scope of the present invention.

[0020] First, dissolve the water-soluble inorganic strong water-absorbing agent with water; then add 100-200 mesh attapulgite raw powder, mix evenly, prepare a shape (which can be spherical, strip, plate or disc), and dry and roast to become A new type of attapulgite-based adsorption refrigeration composite adsorbent. The composite adsorbent was tested on a vacuum gravimetric device, and the adsorption capacity measured at an adsorption temperature of 30°C and a relative water vapor pressure of 20% is shown in Table 1.

[0021] Table 1 Adsorption properties of attapulgite composite adsorbents with different formulations

[0022] formula

Composition / (% mass)

Adsorption capacity / (kg / kg)

Example 1

Attapulgite

calcium chloride

85

15

0.25

Example 2

Attapu...

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Abstract

The present invention relates to adsorbent for adsorbing refrigeration, is especially one kind of attapulgite clay base composite adsorbent for adsorbing refrigeration and its preparation and application, and belongs to the field of new chemical functional material preparing technology. The composite adsorbent for adsorbing refrigeration is prepared through mixing water soluble inorganic strong water absorber and attapulgite clay in certain ratio, forming in a pelletizing machine, stoving and roasting. The composite adsorbent has the advantages of low production cost and high adsorption performance.

Description

technical field [0001] The invention relates to an adsorbent for adsorption refrigeration and its preparation method and application, in particular to an attapulgite-based composite adsorbent for adsorption refrigeration and its preparation method and application, which belongs to the preparation technology of new functional materials in the field of chemical industry. Background technique [0002] Solid adsorption refrigeration can be driven by heat energy, so it can not only relieve the tension of power supply, but also effectively utilize a large amount of low-grade heat energy. The application fields of adsorption refrigeration mainly focus on medium and low temperature waste heat, solar energy utilization, etc. Among them, the utilization of medium and low temperature heat energy below 160 °C is a field with strong competitiveness of adsorption refrigeration. In terms of practicality, small-scale products have appeared in the United States, France, Japan, and the United...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/12F25B35/04
Inventor 崔群陈海军姚虎卿
Owner NANJING TECH UNIV