07408093 is referenced by 19 patents and cites 68 patents.

Hydrocarbon feedstock containing resid is cracked by a process comprising: (a) heating said hydrocarbon feedstock; (b) mixing the heated hydrocarbon feedstock with steam to form a mixture stream; (c) introducing the mixture stream to a flash/separation apparatus to form i) a vapor phase comprising coke precursors existing as uncoalesced condensate, and ii) a liquid phase; (d) removing the vapor phase as overhead and the liquid phase as bottoms from the flash/separation apparatus; (e) treating the overhead by contacting with a condensing means downstream of the flash/separation apparatus to at least partially coalesce the coke precursors to provide residue hydrocarbon liquid, and subsequently removing the hydrocarbon liquid; (f) heating the treated overhead to provide a heated vapor phase (g) cracking the heated vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, the pyrolysis furnace comprising a radiant section and a convection section; and (h) quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.

Title
Process for reducing fouling from flash/separation apparatus during cracking of hydrocarbon feedstocks
Application Number
10/891981
Publication Number
7408093 (B2)
Application Date
July 14, 2004
Publication Date
August 5, 2008
Inventor
Nicholas G Vidonic
Seabrook
TX, US
Richard C Stell
Houston
TX, US
Assignee
ExxonMobil Chemical Patents
TX, US
IPC
C07C 4/04
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