B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 4/00 (2006.01) B01J 19/00 (2006.01) B01J 19/26 (2006.01) C10G 9/16 (2006.01)
Patent
CA 2119501
Abstract of the Disclosure A feed line to a pyrolysis furnace and a liquid injection apparatus for introducing a liquid coke inhibitor in the feed line are disclosed. The injection apparatus includes a central passageway for supplying the liquid coke inhibitor, an annular passageway for delivering an atomizing gas and a mixing reservoir for mixing the liquid and gas wherein the mixed fluid is atomized by passage through an orifice in a nozzle. A cooling jacket surrounding the annular passageway prevents decomposition of the coke inhibiting agent which products can plug the nozzle. The injection apparatus is typically installed in a bend of a process feedstock conduit with a discharge end aligned to an axis of the flow. A hot injection point close to the inlet of the pyrolysis furnace is preferred for best results. To help ensure complete evaporation of a carrier liquid prior to the furnace, the injection apparatus can include an evaporation shroud. For a modularized injection system, the evaporation shroud can include a larger diameter bonnet exterior to the conduit having the injection apparatus attached thereto. For a retractable injection system, the injection apparatus is received within an isolation valve having an outlet end stuffing box.
Bogner Alan E.
Cherish Peter
Schamp Scott T.
Kirby Eades Gale Baker
The M.w. Kellogg Company
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