Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2007-09-25
2007-09-25
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S340000, C208S341000, C208S342000, C208S347000, C208S351000, C208S354000, C422S186220, C585S251000, C585S253000, C585S271000, C585S315000, C585S330000, C585S518000, C585S519000, C585S802000
Reexamination Certificate
active
10407727
ABSTRACT:
The present invention relates to a process and apparatus for recovering product from reactor effluent of a reactor for a hydrocarbon feedstream. An indigenous C4stream is used as lean oil in a demethanizer, which facilitates significant cost and operational savings. C4bottoms from a downstream depropanizer is used as lean oil recycle.
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Asplin John E.
Duhon David J.
Caldarola Glenn
ExxonMobil Chemical Patents Inc.
Singh Prem C.
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