Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...
Reexamination Certificate
2006-08-29
2006-08-29
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With prevention or removal of deleterious carbon...
C208S125000, C208S128000, C208S130000, C208S132000, C585S652000
Reexamination Certificate
active
07097758
ABSTRACT:
A process to increase the non-volatile removal efficiency in a flash drum in the steam cracking system. The gas flow from the convection section is converted from mist flow to annular flow before entering the flash drum to increase the removal efficiency. The conversion of gas flow from mist flow to annular flow is accomplished by subjecting the gas flow first to at least one expander and then to bends of various degrees and force the flow to change directions at least once. The change of gas flow from mist to annular helps coalesce fine liquid droplets and thus being removed from the vapor phase.
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Bancroft Jennifer L.
Dinicolantonio Arthur R.
Stell Richard C.
Stephens George
ExxonMobil Chemical Patents Inc.
Kubena Linda A.
Nguyen Tam M.
Nowak Kelly A.
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