Absorption cell and manufacturing method thereof
US8808436B2 · kind B2 · utility
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9References
9Claims
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Key dates
| Filing date | Nov 1, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 28, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2258/0216
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.