Fluid injection nozzle for fluid bed reactors
AssigneeExxonMobil Research and Engineering Company
InventorsBrian Allen Knapper, Christian Wolfgang SCHROETER, Robert William SKWAROK, Nicholas PROCIW, Jennifer McMILLAN
Life of this patent
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Abstract
A feed injector for a circulating fluid bed reactor is fitted with a discharge nozzle with a circular, radially notched discharge orifice to improve the surface-to-volume ratio of the spray pattern formed by the nozzle. The feed injector is useful for injecting fluids into various types of circulating fluid bed reactors in which good contact between the components of the fluidized bed and the injected fluid is required. It is particularly useful in fluid coking reactors.
Claims15
A feed injector for a circulating fluid bed comprising an inlet for a heavy oil feed, at least one inlet for atomizing steam, a flow conduit for conducting the oil and the steam to a discharge nozzle having a central flow passage of circular cross-section extending from the flow conduit to a radially notched discharge orifice.
A circulating fluid bed reactor having a reactor wall of circular cross section about a vertical axis, a lower inlet for fluidizing gas and feed injectors for a liquid heavy oil feed and atomizing steam around the reactor wall and above the lower fluidizing gas inlet, the feed injectors each extending through the reactor wall into the reactor with a discharge nozzle within the reactor and an inlet for the liquid heavy oil feed at the end remote from the discharge nozzle;
- each feed injector comprising:
- a flow conduit for conducting the oil and the steam to a discharge nozzle having a central flow passage of circular cross-section extending from the flow conduit to a radially notched discharge orifice.
A fluid coking reactor having a reactor wall of circular cross section about a vertical axis, a lower inlet for fluidizing gas and feed injectors for a liquid heavy oil feed and atomizing steam around the reactor wall and above the lower fluidizing gas inlet, the feed injectors each extending through the reactor wall into the reactor with a discharge nozzle within the reactor and inlets for the liquid heavy oil feed and atomizing steam at the end remote from the discharge nozzle;
- each feed injector comprising:
- a flow conduit for conducting the oil and the steam to a discharge nozzle having a central flow passage of circular cross-section extending from the flow conduit to a radially notched discharge orifice.
Dependencies are inferred from the claim text.