Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Reexamination Certificate
2006-06-27
2006-06-27
Dang, Thuan D. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
C208S064000, C208S065000, C208S134000
Reexamination Certificate
active
07067052
ABSTRACT:
A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C8isoalkane and/or C8isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in a catalytic reforming unit comprised of a plurality of operatively connected reactors comprising at least one lead reforming reactor and a tail reforming reactor. The process is carried out by reforming the feed in at least one lead reactor which contains a first reforming catalyst and a catalyst effective for converting ethylbenzene and further reforming the product of the lead reactor in the tail reactor that contains a second reforming catalyst.
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patent: 5958217 (1999-09-01), Nacamuli et al.
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patent: 6051744 (2000-04-01), Nacamuli et al.
Colle Thomas H.
Feng Xiaobing
Hung Jain-Kai
Mohr Gary D.
Rao Krishna Kulai
Dang Thuan D.
ExxonMobil Chemical Patents Inc.
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