Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – From nonhydrocarbon feed
Reexamination Certificate
2007-04-03
2007-04-03
Caldarola, Glen (Department: 1764)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
From nonhydrocarbon feed
C585S639000, C502S208000, C502S214000, C502S240000, C502S263000, C502S303000, C502S349000
Reexamination Certificate
active
10883438
ABSTRACT:
This invention relates to processes for converting oxygenates to olefins that include a step of pretreating catalyst, which comprises molecular sieve and one or more active metal oxides of one or more metals, with a hydrocarbon composition to provide an integrated hydrocarbon co-catalyst within the molecular sieve. The combination of molecular sieve and hydrocarbon co-catalyst converts oxygenate to an olefin product with high selectivity to light olefins (i.e., ethylene or propylene, or mixture thereof).
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Clem Kenneth R.
Coute Nicolas P.
Levin Doron
Vartuli James C.
Xu Teng
Bullock In Suk
Caldarola Glen
ExxonMobil Chemical Patents Inc.
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