Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2007-09-11
2007-09-11
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S075000, C208S078000, C208S080000, C208S092000, C585S653000, C585S300000, C585S302000, C585S330000
Reexamination Certificate
active
10760799
ABSTRACT:
The present invention relates to a process for selectively producing C3olefins from a catalytically cracked or thermally cracked naphtha stream by fractionating the naphtha feed to obtain a C6fraction and feeding the C6fraction either in the riser downstream of the injection point for the reminder of the naphtha feed, in the stripper, and/or in the dilute phase immediately downstream or above the stripper of a process unit.
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Niccum, P.K., et al.: “Maxofintm: A Novel FCC Process for Maximizing Light Olefins Using a New Generation ZSM-5 Additive.” Annual Meeting Mobil Technology Company National Petroleum Refines Association, Niccum, XX, XX, Mar. 1998, pp. 1-1A, XP002927512 the whole document.
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Chen Tan Jen
Henry Brian Erik
Keusenkothen Paul F
Ruziska Philip A.
Bordelon Bruce M.
ExxonMobil Research and Engineering Company
Kliebert Jeremy J.
Nguyen Tam M.
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