Absorption cell and manufacturing method thereof

• US 8,808,436 B2
• Filed: 11/01/2011
• Issued: 08/19/2014
• Est. Priority Date: 12/10/2010
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jee Yong, Park, Rae Eun
• Primary Examiner(s): Jones, Christopher P
• Application Number:
  US13/317,934
• Publication Number:
  US 20120145007A1
• Time in Patent Office: 1,022 Days
• Field of Search: 961/52, 961/54, 216/56, 427/243, 502/400
• 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:

an absorption portion formed of an absorbent material; and

a protective layer formed by a process of coating a mixture of two or more materials on the absorption portion and a process of forming a plurality pore parts in the protective layer by removing one of the two or more materials,

wherein the absorbent material includes a first absorbent,

the mixture of two or more materials includes a second absorbent having a higher density than the first absorbent, the second absorbent not being removed from the mixture of two or more materials, and

the protective layer is an outermost layer of the absorption cell, the protective layer being coated on an outer surface of the absorption portion so as to prevent particles from breaking off from the absorption portion.

2. The absorption cell according to claim 1, wherein the protective layer further includes a plurality of protrusion parts protruded from the absorption portion.

3. The absorption cell according to claim 1, wherein the absorption portion is formed in a spherical shape.

4. The absorption cell according to claim 1, wherein the absorption portion further comprises an absorption core section formed of a material which is the same as one of the materials of the protective layer.

5. The absorption cell according to claim 4, wherein the absorption portion is formed in a spherical shape.

6. The absorption cell according to claim 4, wherein the protective layer further includes a plurality of protrusion parts protruded from the absorption portion.

7. An absorption cell comprising:

a absorption portion formed of a first mixture of two materials; and

a protective layer formed by a process of coating a second mixture of two or more materials on the absorption portion and a process of forming a plurality pore parts in the protective layer by removing one of the two or more materials,

wherein the first mixture includes a first absorbent,

the second mixture of two or more materials includes a second absorbent having a higher density than the first absorbent, the second absorbent not being removed from the mixture of two or more materials, and

the protective layer is an outermost layer of the absorption cell, the protective layer being coated on an outer surface of the absorption portion so as to prevent particles from breaking off from the absorption portion.

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

9. The absorption cell according to claim 7, wherein the absorption portion is formed in a spherical shape.