07247765 is referenced by 19 patents and cites 66 patents.

A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, optionally further heating the mixture, flashing the mixture within a flash/separation vessel to form a vapor phase and a liquid phase, partially condensing the vapor phase by contacting with a condenser within the vessel, to condense at least some coke precursors within the vapor while providing condensates which add to the liquid phase, removing the vapor phase of reduced coke precursors content as overhead and the liquid phase as bottoms, heating the vapor phase, cracking the vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, and quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.

Title
Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel
Application Number
10/851494
Publication Number
7247765 (B2)
Application Date
May 21, 2004
Publication Date
July 24, 2007
Inventor
John R Messinger
Kingwood
TX, US
Jennifer L Bancroft
Houston
TX, US
George Stephens
Humble
TX, US
Richard C Stell
Houston
TX, US
Assignee
ExxonMobil Chemical Patents
TX, US
IPC
C10G 9/36
C07C 4/02
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