Absorption cell and manufacturing method thereof

• US 20120145007A1
• Filed: 11/01/2011
• Published: 06/14/2012
• Est. Priority Date: 12/10/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jee Yong, Park, Rae Eun
• Granted Patent: US 8,808,436 B2
• Time in Patent Office: Days
• US Class Current: 96/152
• CPC Class Codes: B01D 2253/102 Carbon
• CPC Class Codes: B01D 2253/104 Alumina
• CPC Class Codes: B01D 2253/25 Coated, impregnated or composite adsorbents
• CPC Class Codes: B01D 2257/304 Hydrogen sulfide
• CPC Class Codes: B01D 2257/40 Nitrogen compounds
• CPC Class Codes: B01D 2257/406 Ammonia
• CPC Class Codes: B01D 2257/708 Volatile organic compounds V.O.C.'s
• CPC Class Codes: B01D 2258/0216 from CVD treatment or semi-conductor manufacturing
• CPC Class Codes: B01D 53/02 by adsorption, e.g. preparative gas chromatography solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01
• CPC Class Codes: B01D 53/04 with stationary adsorbents B01D53/025 takes precedence
• CPC Class Codes: B01J 20/08 comprising aluminium oxide or hydroxide; comprising bauxite
• CPC Class Codes: B01J 20/20 comprising free carbon; comprising carbon obtained by carbonising processes
• CPC Class Codes: B01J 20/28011 Other properties, e.g. density, crush strength
• CPC Class Codes: B01J 20/28019 Spherical, ellipsoidal or cylindrical
• CPC Class Codes: B01J 20/3236 containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
• CPC Class Codes: B01J 20/3248 the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
• CPC Class Codes: B01J 20/3289 Coatings involving more than one layer of same or different nature
• CPC Class Codes: B01J 20/3293 Coatings on a core, the core being particle or fiber shaped, e.g. encapsulated particles, coated fibers

Abstract

An absorption cell includes a first absorption layer formed of a first absorbent, and a second absorption layer formed of a second absorbent having a higher density than the first absorbent and coated on the surface of the first absorption layer so as to prevent generation of dust particles from the first absorption layer. The upper surface of the first absorption layer is coated with the second absorption layer formed of the high-density absorbent, thereby preventing generation of minute dust particles and thus preventing secondary contamination.

Claims

1. An absorption cell comprising:

a first absorption layer formed of a first absorbent; and

a second absorption layer formed of a second absorbent having a higher density than the first absorbent and coated on the surface of the first absorption layer so as to prevent generation of dust particles from the first absorption layer.

2. The absorption cell according to claim 1, wherein the second absorption layer includes a plurality of pore parts through which a fluid flows to the first absorption layer.

3. The absorption cell according to claim 2, wherein the second absorption layer further includes a plurality of protrusion parts protruded from the first absorption layer.

4. The absorption cell according to claim 1, wherein the first absorption layer is formed in a spherical shape.

5. The absorption cell according to claim 1, further comprising a third absorption layer located within the first absorption layer and formed of the second absorbent.

6. The absorption cell according to claim 5, wherein the first absorption layer is formed in a spherical shape.

7. The absorption cell according to claim 5, wherein the second absorption layer includes a plurality of pore parts through which a fluid flows to the first absorption layer.

8. The absorption cell according to claim 7, wherein the second absorption layer further includes a plurality of protrusion parts protruded from the first absorption layer.

9. An absorption cell comprising:

a first absorption layer formed of a mixture of a first absorbent and a second absorbent having a higher density than the first absorbent; and

a second absorption layer formed of the second absorbent having a higher density than the first absorbent and surrounding the surface of the second absorption layer so as to prevent generation of dust particles from the first absorption layer.

10. The absorption cell according to claim 9, wherein the second absorption layer includes a plurality of pore parts through which a fluid flows to the first absorption layer.

11. The absorption cell according to claim 10, wherein the second absorption layer further includes a plurality of protrusion parts protruded from the first absorption layer.

12. The absorption cell according to claim 9, wherein the first absorption layer is formed in a spherical shape.

13. A manufacturing method of an absorption cell comprising:

preparing a first absorption layer formed of a first absorbent;

coating the surface of the first absorption layer with a protective layer formed of a low-carbonizing point material and a second absorbent having a higher density than the first absorbent so as to prevent generation of dust particles from the first absorption layer; and

removing the low-carbonizing point material from the protective layer so as to form a second absorption layer including a plurality of pore parts through which a fluid flows to the first absorption layer.

14. The manufacturing method according to claim 13, wherein the low-carbonizing point material is removed through heat treatment or acid treatment.

15. The manufacturing method according to claim 13, wherein the coating of the surface of the first absorption layer with the protective layer and the removal of the low-carbonizing point material are repeated so as to form the second absorption layer to a designated thickness on the surface of the first absorption layer.

16. The manufacturing method according to claim 13, wherein the first absorption layer is formed in a spherical shape.

17. The manufacturing method according to claim 13, further comprising preparing a third absorption layer formed of the second absorbent within the first absorption layer.

18. The manufacturing method according to claim 17, wherein the first absorption layer is formed in a spherical shape.

19. The manufacturing method according to claim 18, wherein the coating of the surface of the first absorption layer with the protective layer and the removal of the low-carbonizing point material are repeated so as to form the second absorption layer to a designated thickness on the surface of the first absorption layer.

20. A manufacturing method of an absorption cell comprising:

preparing a first absorption layer formed of a mixture of a first absorbent and a second absorbent having a higher density than the first absorbent;

coating the surface of the first absorption layer with a protective layer formed of a low-carbonizing point material and the second absorbent so as to prevent generation of dust particles from the first absorption layer; and

removing the low-carbonizing point material from the protective layer so as to form a second absorption layer including a plurality of pore parts through which a fluid flows to the first absorption layer.

21. The manufacturing method according to claim 20, wherein the low-carbonizing point material is removed through heat treatment or acid treatment.

22. The manufacturing method according to claim 20, wherein the coating of the surface of the first absorption layer with the protective layer and the removal of the low-carbonizing point material are repeated so as to form the second absorption layer to a designated thickness on the surface of the first absorption layer.

23. The manufacturing method according to claim 20, wherein the first absorption layer is formed in a spherical shape.