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
10325396
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.
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ExxonMobil Chemical Patents Inc.
Nguyen Tam M.
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