Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By plural serial diverse separations
Reexamination Certificate
2008-07-22
2008-07-22
Nguyen, Tam M. (Department: 1764)
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By plural serial diverse separations
C585S809000, C585S836000, C585S867000, C203S003000, C203S043000, C203S068000, C203S070000
Reexamination Certificate
active
07402720
ABSTRACT:
The present invention provides a process for removing methyl acetylene and/or propadiene from a propylene stream and/or a butylene stream by two step fractionation. Methyl acetylene and/or propadiene avoids the use of a hydrogenation reactor and makes the methyl acetylene and/or propadiene recoverable from the process.
REFERENCES:
patent: 2657243 (1953-10-01), Giraitis et al.
patent: 4018843 (1977-04-01), Michaux et al.
patent: 4087477 (1978-05-01), Tazuma et al.
patent: 6066238 (2000-05-01), Perry
patent: 6124517 (2000-09-01), Kaminsky et al.
patent: 6559248 (2003-05-01), Hendriksen et al.
patent: 6717025 (2004-04-01), Risch et al.
patent: 6864401 (2005-03-01), Van Egmond
patent: 7030284 (2006-04-01), Shutt
patent: 7060866 (2006-06-01), Van Egmond et al.
patent: 2003/0199721 (2003-10-01), Ding et al.
patent: 2004/0097760 (2004-05-01), Risch et al.
patent: 2004/0122272 (2004-06-01), Van Egmond et al.
patent: 2004/0122274 (2004-06-01), Van Egmond et al.
ExxonMobil Chemical Patents Inc.
Nguyen Tam M.
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