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WO1997013576A3 - Shear mixing apparatus and use thereof - Google Patents

Shear mixing apparatus and use thereof Download PDF

Info

Publication number
WO1997013576A3
WO1997013576A3 PCT/US1996/016200 US9616200W WO9713576A3 WO 1997013576 A3 WO1997013576 A3 WO 1997013576A3 US 9616200 W US9616200 W US 9616200W WO 9713576 A3 WO9713576 A3 WO 9713576A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
mass transfer
gas
shear mixing
improved
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.)
Ceased
Application number
PCT/US1996/016200
Other languages
French (fr)
Other versions
WO1997013576A2 (en
Inventor
Robert Page Shirtum
David L Trent
Cheryl A Tirtowidjojo
Paul A Gillis
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to AU73990/96A priority Critical patent/AU7399096A/en
Priority to PCT/US1996/016200 priority patent/WO1997013576A2/en
Priority to US08/798,594 priority patent/US5845993A/en
Priority claimed from US08/798,594 external-priority patent/US5845993A/en
Priority to EP97301170A priority patent/EP0860205A1/en
Priority to CA002198440A priority patent/CA2198440A1/en
Publication of WO1997013576A2 publication Critical patent/WO1997013576A2/en
Publication of WO1997013576A3 publication Critical patent/WO1997013576A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23123—Diffusers consisting of rigid porous or perforated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2373—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
    • 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
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
    • 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
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00069—Flow rate measurement
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00162—Controlling or regulating processes controlling the pressure
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00164—Controlling or regulating processes controlling the flow

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)

Abstract

Shear mixing apparatuses and associated methods are disclosed for controllably and economically producing small gas bubbles, for example, of an average diameter of less than about 0.5 millimeters in a liquid, whereby mass transfer of the gas into the liquid is improved (as compared to the mass transfer achieved by conventional large bubble generators under the same circumstances) in applications benefiting by such improved mass transfer, involving injecting a gas under pressure via one or more orifices into a liquid that is flowing at a velocity sufficient to cause bubbles formed at the orifice(s) to subdivide to the desired small bubble size.
PCT/US1996/016200 1995-10-12 1996-10-10 Shear mixing apparatus and use thereof Ceased WO1997013576A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU73990/96A AU7399096A (en) 1995-10-12 1996-10-10 Shear mixing apparatus and use thereof
PCT/US1996/016200 WO1997013576A2 (en) 1995-10-12 1996-10-10 Shear mixing apparatus and use thereof
US08/798,594 US5845993A (en) 1995-10-12 1997-02-11 Shear mixing apparatus and use thereof
EP97301170A EP0860205A1 (en) 1995-10-12 1997-02-21 Shear mixing method and apparatus
CA002198440A CA2198440A1 (en) 1995-10-12 1997-02-25 Shear mixing apparatus and use thereof

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US520595P 1995-10-12 1995-10-12
US60/005,205 1995-10-12
PCT/US1996/016200 WO1997013576A2 (en) 1995-10-12 1996-10-10 Shear mixing apparatus and use thereof
US08/798,594 US5845993A (en) 1995-10-12 1997-02-11 Shear mixing apparatus and use thereof
EP97301170A EP0860205A1 (en) 1995-10-12 1997-02-21 Shear mixing method and apparatus
CA002198440A CA2198440A1 (en) 1995-10-12 1997-02-25 Shear mixing apparatus and use thereof

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US08/798,594 Continuation US5845993A (en) 1995-10-12 1997-02-11 Shear mixing apparatus and use thereof

Publications (2)

Publication Number Publication Date
WO1997013576A2 WO1997013576A2 (en) 1997-04-17
WO1997013576A3 true WO1997013576A3 (en) 1997-08-21

Family

ID=27427331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/016200 Ceased WO1997013576A2 (en) 1995-10-12 1996-10-10 Shear mixing apparatus and use thereof

Country Status (2)

Country Link
AU (1) AU7399096A (en)
WO (1) WO1997013576A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015360A (en) * 1978-03-06 1979-09-12 Komax Systems Inc A mixing apparatus incorporating a fluid injector
US4313680A (en) * 1979-11-05 1982-02-02 Chevron Research Company Reactor for fast reactions
US4674888A (en) * 1984-05-06 1987-06-23 Komax Systems, Inc. Gaseous injector for mixing apparatus
US5409672A (en) * 1993-12-17 1995-04-25 Uop Plug flow reaction apparatus with high shear
US5532389A (en) * 1993-11-23 1996-07-02 The Dow Chemical Company Process for preparing alkylene oxides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015360A (en) * 1978-03-06 1979-09-12 Komax Systems Inc A mixing apparatus incorporating a fluid injector
US4313680A (en) * 1979-11-05 1982-02-02 Chevron Research Company Reactor for fast reactions
US4674888A (en) * 1984-05-06 1987-06-23 Komax Systems, Inc. Gaseous injector for mixing apparatus
US5532389A (en) * 1993-11-23 1996-07-02 The Dow Chemical Company Process for preparing alkylene oxides
US5409672A (en) * 1993-12-17 1995-04-25 Uop Plug flow reaction apparatus with high shear

Also Published As

Publication number Publication date
AU7399096A (en) 1997-04-30
WO1997013576A2 (en) 1997-04-17

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