ABSORBENT COMPOSITION FOR THE SELECTIVE ABSORTPTION OF HYDROGEN SULFIDE AND PROCESS OF USE THEREOF
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United States of America Patent
Stats
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N/A
Issued Date -
Apr 2, 2015
app pub date -
May 29, 2013
filing date -
May 31, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
An absorbent composition that is useful in the selective removal of hydrogen sulfide relative to carbon dioxide from gaseous mixtures that comprise both hydrogen sulfide and carbon dioxide and the use thereof. The absorbent composition includes an aqueous solvent that comprises an amine mixture, comprising an amination reaction product of tert-butylamine and a polydispersed polyethylene glycol mixture, and water with a concentration of an added strong acid to inhibit phase separation of the aqueous solvent. The operation of certain gas absorption processes can be improved by the use of the absorbent composition.
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 | |
---|---|---|
SHELL OIL COMPANY | A CORP OF DE HOUSTON TX 77001 | |
HUNTSMAN PETROCHEMICAL LLC | 10003 WOODLOCH FOREST DRIVE THE WOODLANDS TX 77380 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Critchfield, James Edward | Austin, US | 4 | 11 |
# of filed Patents : 4 Total Citations : 11 | |||
Valenzela, Diego Patricio | Amsterdam, NL | 1 | 7 |
# of filed Patents : 1 Total Citations : 7 | |||
Wilson, Loren Clark | Katy, US | 3 | 10 |
# of filed Patents : 3 Total Citations : 10 | |||
Zhou, Jingjun | The Woodlands, US | 12 | 13 |
# of filed Patents : 12 Total Citations : 13 |
Cited Art Landscape
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Patent Citation Ranking
- 7 Citation Count
- B01D Class
- 15.53 % this patent is cited more than
- 10 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 2, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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