CA2462397A1 - Mixing arrangement for atomizing nozzle in multi-phase flow - Google Patents

Mixing arrangement for atomizing nozzle in multi-phase flow Download PDF

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Publication number
CA2462397A1
CA2462397A1 CA002462397A CA2462397A CA2462397A1 CA 2462397 A1 CA2462397 A1 CA 2462397A1 CA 002462397 A CA002462397 A CA 002462397A CA 2462397 A CA2462397 A CA 2462397A CA 2462397 A1 CA2462397 A1 CA 2462397A1
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CA
Canada
Prior art keywords
main
conduit
arrangement
diameter
conduits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002462397A
Other languages
French (fr)
Other versions
CA2462397C (en
Inventor
Thomas William Mccracken
Adam J. Bennett
Kevin A. Jonasson
Deepak Kirpalani
Zahra Moradi Tafreshi
Terrence E. Base (Deceased)
Douglas A. Emberley
R. Douglas Kennett
Daniel J. Bulbuc
Edward W. Chan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Council of Canada
Syncrude Canada Ltd
Original Assignee
ESTATE OF BASE TERRENCE E
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ESTATE OF BASE TERRENCE E filed Critical ESTATE OF BASE TERRENCE E
Publication of CA2462397A1 publication Critical patent/CA2462397A1/en
Application granted granted Critical
Publication of CA2462397C publication Critical patent/CA2462397C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/23—Mixing by intersecting jets
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0418—Geometrical information
    • B01F2215/0422—Numerical values of angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0436—Operational information
    • B01F2215/0481—Numerical speed values

Abstract

The invention relates to an improved mixing arrangement for, primarily, moving bitumen in steam from sources of such bitumen and steam to a reactor or coker for further processing of the bitumen into petroleum products. The invention provides a main conduit connected to an atomizing nozzle mounted in a wall of the reactor and first and second conduits for flowing bitumen and steam respectively into the main conduit. The first conduit is angled relative to the main conduit at an acute angle of about 45° and the second conduit is angled relative to the main conduit at an acute angle of about 30°. The second conduit is positioned upstream of the first conduit by a short distance of about 23mm and may be angled radially relative to the first conduit by any angle, although a 90° angle is preferred. A flow accelerating nozzle is located in the second conduit adjacent the entrance therefrom into the main conduit. The arrangement of the invention improves the flow characteristics of 2-phase material flowing to the atomizing nozzle, reducing pulsations in the main conduit and improving the resulting atomization of the bitumen in the reactor.

Claims (19)

1. An arrangement for feeding a mixture of bitumen and steam to a reactor for further processing of atomized bitumen within the reactor comprising;
an atomizing nozzle connected to a wall of said reactor and opening to an interior of said reactor, said nozzle being adapted to atomize bitumen carried by steam into droplets suitable for such further processing;
a main conduit having a main axis, connected at a proximal end to said nozzle and including openable closure means at a distal end thereof;
a first feed conduit having a first axis and connected to a source of bitumen, said first conduit being in a first plane containing said main and first axes, said first feed conduit joining said main conduit at an angle in the range of 30° to 60° as defined between said main and first axes downstream of the junction between said main and first conduits;
a second feed conduit having a second axis and connected to a source of steam, said second conduit being in a second plane containing said main and second axes, said second feed conduit joining said main conduit downstream of the junction between said main and first conduits at an angle in the range of 20°to 40° as defined between said main and second axes downstream of the junction between said main and second conduits; and flow-accelerating nozzle means positioned in said second feed conduit upstream of the juncture between said main and second conduits.
2. The arrangement of claim 1 wherein said first and second planes are coplanar, with said first and second feed conduits being positioned on opposite sides of said main conduit.
3. The arrangement of claim 1 wherein said first and second planes are separated angularly by an angle in the vicinity of 90°.
4. The arrangement of claim l wherein said flow accelerating nozzle means is positioned in said second feed conduit adjacent the junction of said second feed conduit with said main conduit.
5. The arrangement of claim 1 wherein said angle between said main and first axes is about 45° and the angle between said main and second axes is about 30°.
6. The arrangement of claim 1 wherein said closure means is adapted to receive an elongated pusher rod therethrough, which rod is adapted for pushing any bitumen that might clog said main conduit through said main conduit and said atomizing nozzle into said reactor.
7. The arrangement of claim 1 wherein said main conduit has a diameter of about 38mm, said first feed conduit has a diameter of about 38mm, said second feed conduit has a diameter of about 24mm, and said first axis intersects said main axis at a point about 23mm upstream of a point at which said second axis intersects said main axis.
8. The arrangement of claim 7 wherein said flow accelerating nozzle has a minimum diameter of about 10mm
9 The arrangement of claim 1 wherein said main conduit has a diameter D1, said first feed conduit has a diameter D2, said second feed conduit has a diameter D3, and wherein D1 is substantially equal to D2, and D3 is about 60% to 65% of D2.
10. The arrangement of claim 1 wherein said flow-accelerating nozzle has a diameter selected to impart a mean gas velocity of at least 24.4 m/sec to steam exiting therefrom.
11. The arrangement of claim 9 wherein said flow-accelerating nozzle has a diameter D4 which is about 42% of the diameter D3 and wherein said diameter D4 is also selected to impart a mean gas velocity of at least 24.4 m/sec to steam exiting therefrom.
12. The arrangement of claim 1 wherein said closure means is adapted to be opened for insertion of conduit cleaning means into said main conduit.
13. A mixing arrangement for feeding a mixture of oil and steam to an atomizing nozzle connected to a reactor for further processing therein, comprising:
a main conduit having a main axis, for connection at a proximal end to said nozzle and including openable closure means at a distal end thereof;
a first feed conduit having a first axis and connected to a source of oil, said first conduit being in a first plane containing said main and first axes, said first feed conduit joining said main conduit at an angle in the range of 30° to 60° as defined between said main and first axes downstream of the junction between said main and first conduits;
a second feed conduit having a second axis and connected to a source of steam, said second conduit being in a second plane containing said main and second axes, said second feed conduit joining said main conduit downstream of the junction between said main and first conduits at an angle in the range of 20° to 40° as defined between said main and second axes downstream of the junction between said main and second conduits; and flow-accelerating nozzle means positioned in said second feed conduit upstream of the juncture between said main and second conduits.
14. The arrangement of claim 13 wherein said closure means is adapted to be opened for insertion of conduit cleaning means into said main conduit.
15. A mixing arrangement for feeding a mixture of a heavier, generally incompressible, fluid and a lighter, compressible, fluid to a location for further processing therein, comprising:
a main conduit having a main axis, for connection at a proximal end to processing apparatus at said location;
a first feed conduit having a first axis and connected to a source of said heavier fluid, said first conduit being in a first plane containing said main and first axes, said first feed conduit joining said main conduit at an angle in the range of 30° to 60°
as defined between said main and first axes downstream of the junction between said main and first conduits;
a second feed conduit having a second axis and connected to a source of said lighter fluid, said second conduit being in a second plane containing said main and second axes, said second feed conduit joining said main conduit downstream of the junction between said main and first conduits at an angle in the range of 20° to 40° as defined between said main and second axes downstream of the junction between said main and second conduits; and flow-accelerating nozzle means positioned in said second feed conduit upstream of the juncture between said main and second conduits.
16. The arrangement of claim 15 wherein said main conduit includes closure means at a distal end thereof, adapted to close said main conduit at said distal end and to open said main conduit for insertion of conduit cleaning means into said main conduit.
17 The arrangement of claim 15 wherein said main conduit has a diameter D1, said first feed conduit has a diameter D2, said second feed conduit has a diameter D3, and wherein D1 is substantially equal to D2, and D3 is about 60% to 65% of D2.
18. The arrangement of claim 15 wherein said flow-accelerating nozzle has a diameter selected to impart a mean gas velocity of at least 24.4 m/sec to lighter fluid exiting therefrom.
19. The arrangement of claim 17 wherein said flow-accelerating nozzle has a diameter D4 which is about 42% of the diameter D3 and wherein said diameter D4 is also selected to impart a mean gas velocity of at least 24.4 m/sec to lighter fluid exiting therefrom.
CA2462397A 2003-03-24 2004-03-24 Mixing arrangement for atomizing nozzle in multi-phase flow Expired - Lifetime CA2462397C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45652203P 2003-03-24 2003-03-24
US60/456,522 2003-03-24

Publications (2)

Publication Number Publication Date
CA2462397A1 true CA2462397A1 (en) 2004-09-24
CA2462397C CA2462397C (en) 2010-05-04

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US (1) US7140558B2 (en)
CA (1) CA2462397C (en)

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