Purification method and purification apparatus for feed air in cryogenic air separation
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United States of America Patent
Stats
-
May 16, 2017
Issued Date -
N/A
app pub date -
Dec 12, 2006
filing date -
Dec 14, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A purification method for feed air in cryogenic air separation of the present invention includes purifying the feed air for the cryogenic air separation by using a temperature swing adsorption method, wherein the whole region of a carbon dioxide adsorbent layer packed in an adsorption column is used as a mass transfer zone of a carbon dioxide. Also, a purification apparatus for feed air in cryogenic air separation of the present invention includes at least two adsorption columns; and a moisture adsorbent and a carbon dioxide adsorbent being laminated and packed in the adsorption columns, wherein the packed amount of the carbon dioxide adsorbent is the same as the amount of the carbon dioxide adsorbent in the region of the carbon dioxide adsorbent which a mass transfer zone of a carbon dioxide occupies at the end of an adsorption step, and a temperature swing adsorption method is used.
First Claim
Family
International Classification(s)
- 2006 Application Filing Year
- F25J Class
- 75 Applications Filed
- 49 Patents Issued To-Date
- 65.34 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F25J Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 16, 2024 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 16, 2028 |
