Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – From nonhydrocarbon feed
Reexamination Certificate
2006-11-07
2006-11-07
Caldarola, Glenn (Department: 1764)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
From nonhydrocarbon feed
C585S639000
Reexamination Certificate
active
07132581
ABSTRACT:
This invention concerns processes for converting oxygenates to olefins that include a step of pretreating catalyst used in the conversion reaction. A fresh or regenerated metalloaluminophosphate molecular sieve, which is low in carbon content, is pretreated with an aldehyde. The aldehyde forms a hydrocarbon co-catalyst within the pore structure of the molecular sieve, and the pretreated molecular sieve containing the co-catalyst is used to convert oxygenate to an olefin product.
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Clem Kenneth Ray
Coute Nicolas P.
Van Egmond Cornelis F.
Xu Teng
Bullock In Suk
Caldarola Glenn
ExxonMobil Chemical Patents Inc.
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