B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
299/28, 196/74
B05B 7/00 (2006.01) B01F 3/04 (2006.01) B01F 5/06 (2006.01) B01J 19/26 (2006.01) B05B 7/04 (2006.01) C10B 55/00 (2006.01)
Patent
CA 2224615
Mixing means, for producing a flow mixture of oil and steam, is combined with an atomizing nozzle to provide a nozzle assembly which produces a jet of very fine oil droplets. The nozzle assembly is used in conjunction with a reactor, such as a fluidized bed coker. The mixing means comprises a pipe, external of the reactor, having separate, spaced apart inlets for oil and steam. The steam inlet is upstream of the oil inlet. A reducing diameter nozzle is positioned in the pipe bore between the inlets, for accelerating the steam. The steam contacts the oil and turbulently moves down the pipe bore to produce what is known as a "bubbly flow" mixture. The mixture is fed to the nozzle, which is internal of the reactor. The nozzle has: an inlet; a first contraction section of reducing diameter for accelerating the flow, preferably to supersonic velocity, whereby the droplets are reduced in size; a diffuser section of expanding diameter wherein the mixture decelerates and a shock wave may be induced; a second contraction section operative to accelerate the mixture more than the first contraction section; and an orifice outlet for producing a jet or spray. The nozzle assembly has been shown to reduce droplet size from about 12,000µm to about 300µm. 1
Base Terence E.
Bennett Adam J.
Chan Edward W.
Emberley Douglas A.
Jonasson Kevin
Aec Oil Sands L.p.
Aec Oil Sands Limited Partnership
Athabasca Oil Sands Investments Inc.
Base Terence E.
Bennett Jones Llp
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