Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2007-06-26
2007-06-26
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S125000, C208S128000, C585S650000
Reexamination Certificate
active
10786391
ABSTRACT:
The invention includes a process for making olefins. In one embodiment, the process comprises producing steam from a process water comprising organic compounds, wherein the process water comprises at least a portion of a product water from a hydrocarbon synthesis process; feeding the steam comprising some organic compounds and a light hydrocarbons feedstream into a steam cracker under cracking promoting conditions so as to crack with said steam some of the light hydrocarbons and some of the organic compounds from the steam to produce a cracker effluent comprising at least one olefin. In some embodiments, the light hydrocarbons feedstream comprises a naphtha cut. In alternate embodiments, the light hydrocarbons feedstream comprises a hydrocarbon fraction derived from a hydrocarbon synthesis reactor. In preferred embodiments, the process water and light hydrocarbons feedstream are at least in part derived from a Fisher-Tropsch synthesis, and the organic compounds comprise oxygenates.
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Lawson Keith H.
Scholten Scott A.
Conley & Rose, P.C.
ConocoPhillips Company
Nguyen Tam M.
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