Helium recovery from natural gas
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United States of America Patent
Stats
-
Jun 28, 2016
Grant Date -
Aug 28, 2014
app pub date -
Dec 20, 2013
filing date -
Feb 26, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Helium-containing natural gas is processed with three gas separation stages to produce a natural gas product and a Helium-containing gas that may be injected into the reservoir from which the Helium-containing natural gas is obtained. A permeate from the first gas separation membrane stage is compressed and fed to the second gas membrane stage. The permeate from the second gas separation membrane stage is recovered as the Helium-containing gas that may be injected into the reservoir. The non-permeate from the second gas separation membrane stage is fed to the third gas separation membrane stage. Non-permeates from the first and third gas separation stages are combined to produce a natural gas product. A permeate from the third gas separation membrane stage is combined with a non-permeate from the first gas separation membrane stage before it is compressed and fed to the second gas separation membrane stage.
First Claim
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International Classification(s)
- 2013 Application Filing Year
- C01B Class
- 1318 Applications Filed
- 1164 Patents Issued To-Date
- 88.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C01B Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 28, 2027 |
