Sintered body for adsorption, production method therefor, and adsorption device

A manufacturing method and technology of sintered body, which are applied in separation methods, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of unsuitable adsorption fluid adsorption devices, reduced flow rate, and lack of mechanical strength of molded products.

Pending Publication Date: 2021-09-21
AJINOMOTO CO INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when this so-called foamed plastic is used as the matrix of the adsorption material, generally speaking, the molded product is soft and lacks mechanical strength, and is easily deformed under high pressure and high flow rate, so it is not suitable for the adsorption fluid (7). Continuous adsorption device for treated substances
Specifically, for example, as Figure 14 (a) and Figure 15 As shown in (a), compared to the molded product 10 before use, the molded product 10 when used at a high pressure or high flow rate is composed of a foamed plastic 12. Therefore, because Figure 14 The compressive force 16 of (b) causes the whole volume to be easily crushed. In addition, if Figure 15 As shown in (b), the pores 13 tend to be smaller than before use, so the density of the activated carbon particles 11 becomes higher, the pressure loss increases, and the flow rate decreases significantly.
[0008] In addition, pores are formed in the matrix resin by impregnating the foaming agent and the like in the adsorbent. Therefore, if the foaming agent and the like are not sufficiently impregnated in the adsorbent, it is difficult to form appropriate pores.
In addition, when the content of the adsorbent is increased for the purpose of improving the adsorption performance, the pores also increase, and the mechanical strength tends to decrease, so it is difficult to improve the absorption efficiency.
[0009] In addition, in the obtained molded product, the continuous cell structure is considered to be good, and a so-called sponge-like structure is formed, and the mechanical strength is further reduced. Therefore, there are problems that it is not suitable for filling into a container such as a cartridge and using it as described above. Application of continuous treatment of treated substances in adsorption fluid (7)

Method used

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  • Sintered body for adsorption, production method therefor, and adsorption device
  • Sintered body for adsorption, production method therefor, and adsorption device
  • Sintered body for adsorption, production method therefor, and adsorption device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0110] In each syringe (61) with a volume of about 3ml, glass frit (filter for preventing powder from flowing out) (62a) is arranged, and the adsorption sintered bodies (20) of Examples 1 to 4 are respectively filled, and then glass frit ( 62b), as Figure 7 The pressure loss test device (60). For each of Examples 1 to 4, the adsorption when the air adjusted to 0.2 L / min by the flow meter (64) flows through the adsorption sintered body (20) was measured with a pressure gauge (KEYENCE Co., Ltd. AP-53A) (63) Use the differential pressure between sintered bodies (20);

[0111]

[0112] Instead of the sintered body (20) for adsorption, each powder body (69) of Comparative Examples 1 to 4 and Comparative Examples 1' and 2' was filled in the syringe (61), and the same method as in the previous example was used. Test method The differential pressure of each comparative example was measured.

[0113] [1-3] Test results and investigation

[0114] For example, the horizontal axis ...

Embodiment 5 and 6

[0122] Utilize the liquid-through adsorption test device (80), for the container (81) of inner diameter 8.6mm that is filled with respectively the adsorption sintered body (20) of embodiment 5 and 6, transport and store by tube pump (83) with 3.2ml / min Concentration 1200mg / l methylene blue solution 20ml in the container (82) and make it circulate ( Figure 10 ). The circulating liquid of each 0.1ml is collected at regular intervals, and after being diluted to 100 times, the absorbance at wavelength 665nm is measured by a spectrophotometer (UV-1700 manufactured by Shimadzu Corporation). Methylene blue residual concentration.

Embodiment 5

[0130] The sintered body for adsorption (20) of Example 5 was obtained by the same method as above. Mix 0.076 parts by mass of granular activated carbon with an average diameter of about 2000 μm obtained by activating carbides of coconut shell with steam and 0.177 parts by mass of polyethylene beads with a diameter of 100 μm to obtain granular bodies (99) (comparative example 7). For large-diameter granular activated carbon with a particle diameter of about 2000 μm, the sintered body for adsorption of the present invention cannot form the voids between the resin structures so that the activated carbon can swim, and the number of particles is extremely small compared with powder. Therefore, a large number of voids without activated carbon were also formed, so in order to achieve the same conditions as in Example 5 as much as possible, polyethylene beads were used in the same amount as the polyethylene powder. A granular body (99) containing only 0.076 parts by mass of granular ...

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Abstract

The aim is to adsorb a to-be-treated substance in a fluid (7) at high adsorption capacity and with low pressure loss. A sintered body (20) for adsorption according to the present invention is provided with powder adsorbent materials (1a, 1b) and a resin structure (2) which has a void (3) formed so as to have a three-dimensional network-configuration. The powder adsorbent materials (1a, 1b) comprise: a free adsorbent material (1a) that is accommodated within the void (3) in the resin structure (2) so as to be freely movable; and a fixed adsorbent material (1b) that is firmly fixed to a surface (2a) of the resin structure (2) and / or has at least a part thereof embedded inside the resin structure (2). The powder adsorbent materials (1a, 1b) are at least one type selected from among powdered activated carbon, powdered activated white earth, and zeolite.

Description

technical field [0001] The present invention relates to a sintered body for adsorption, and more particularly to a sintered body for adsorption including a powdered adsorbent that adsorbs a substance to be treated in a fluid, a method for producing the same, and an adsorption device. Background technique [0002] Adsorption materials such as activated carbon, activated white earth, and zeolite can be used for air purification, dioxin removal, flue gas desulfurization and denitrification, odor removal, factory waste gas and waste liquid treatment, advanced water treatment, chemical reagents Purification of food and beverages, decolorization of food and beverages, household water purifiers, air purifiers, refrigerator deodorants, gas masks, etc., various adsorption applications for industrial, household, and medical purposes. [0003] For example, Patent Document 1 discloses an activated carbon cartridge for gas purification in which granular activated carbon having a particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28A61L9/014B01D53/38B01D53/50B01D53/56B01D53/70B01D53/82B01J20/12B01J20/18B01J20/20B01J20/30C02F1/28C02F1/40
CPCA61L9/014B01J20/12B01J20/20C02F1/288B01D2253/308B01D2253/108B01D53/02B01D2258/0283B01D2257/306B01D2253/104B01D2257/90B01D2253/304B01D2253/102B01D2253/106B01D2258/06B01D2257/60B01D2257/7022B01D2257/93B01D2259/4541B01D2257/302B01D2257/404B01D53/508B01D53/565B01D53/72B01J20/3035B01J20/165B01J20/3042B01J20/2803B01J20/14B01J20/106B01J20/103B01J20/08B01J20/28004B01J20/28052B01J20/28026B01J20/18B01J20/3078B01D53/38B01D53/50B01D53/56B01D53/70B01D53/82C02F1/28C02F1/40B01D53/04B01D2253/202B01D2253/25B01J20/261B01J2220/46C02F1/283C02F1/285C02F2101/308
Inventor 清野诚矢野英之加藤敏文
Owner AJINOMOTO CO INC
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