Method and apparatus for removing high concentration acid gas from natural gas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 25, 2017
Issued Date -
N/A
app pub date -
May 14, 2014
filing date -
May 14, 2014
priority date (Note) -
In Force
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Abstract
A multi-stage process for recovering acid gas from natural gas having high acid gas contents utilizes two or more membrane absorption contactors arranged in series. The first membrane absorption contactor uses a physical solvent to remove a high volume of acid gas transferred across a membrane, and to reduce the acid gas content in the natural gas to a lower level that can be managed using chemical solvents. The second and, if needed, subsequent membrane absorption contactors can use a chemical solvent to remove acid gas transferred across the respective membranes and reduce the acid gas content in the natural gas to very low levels, if needed, depending on product specifications.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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GAS TECHNOLOGY INSTITUTE | 1700 MOUNT PROSPECT ROAD DES PLAINES IL US 60018-1804 |
International Classification(s)

- 2014 Application Filing Year
- C10L Class
- 521 Applications Filed
- 401 Patents Issued To-Date
- 76.97 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Meyer, Howard S | Hoffman Estates, US | 16 | 68 |
# of filed Patents : 16 Total Citations : 68 | |||
Zhou, Shaojun | Palatine, US | 12 | 37 |
# of filed Patents : 12 Total Citations : 37 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- C10L Class
- 35.53 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 25, 2028 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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