GB911421A - Method of mixing gases - Google Patents

Method of mixing gases

Info

Publication number
GB911421A
GB911421A GB6859/61A GB685961A GB911421A GB 911421 A GB911421 A GB 911421A GB 6859/61 A GB6859/61 A GB 6859/61A GB 685961 A GB685961 A GB 685961A GB 911421 A GB911421 A GB 911421A
Authority
GB
United Kingdom
Prior art keywords
gases
nozzles
duct
mixing
reaction temperature
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.)
Expired
Application number
GB6859/61A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB911421A publication Critical patent/GB911421A/en
Expired 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
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • 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
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • 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
    • B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
    • 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

Abstract

<PICT:0911421/III/1> <PICT:0911421/III/2> Two or more gases are discharged through nozzles which form the gases into partial streams of supersonic speed which are mixed in a reactor duct. As shown in Fig. 1, two reactive gases (which may be oxygen, and a hydrocarbon as methane, ethane or propane) are supplied under pressure to heaters 18, 19 where they are raised above reaction temperature and pass at subsonic speed through pipes 22, 23 to a mixing nozzle array 26, see also Fig. 2. They are discharged as partial streams through venturiform gas nozzles 28, 29 by which the streams are raised to supersonic speed and lowered below reaction temperature. The parallel partial streams then flow through a mixing duct having a divergent section 10 and a section 11 which is cylindrical or slightly divergent to minimize drag and boundary layer growth, and thence to a reactor 12 having a wedge 13 which creates a strong standing shock wave W whereby the gases are raised above reaction temperature. The reaction may be quenched by a spray device or other means 39; and the products discharged to a subsonic diffuser duct 40. The two groups of nozzles are closely interspersed and the nozzles may differ in size and number in accordance with the total mass flow rates of the several gases. They may be circular in cross-section, see also Figs. 3-7 (not shown) or rectangular, see Figs. 8-10 (not shown). The downstream ends of adjacent nozzles may intersect. The different gases may pass through the mixing duct 10, 11 with differences in velocity not exceeding 10%, producing mild shock waves sufficient to promote mixing but insufficient to cause reaction. The mixing duct 10, 11 has a length 20 to 200 times the largest diameter of the larger nozzles 28.
GB6859/61A 1960-02-26 1961-02-24 Method of mixing gases Expired GB911421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1123360A 1960-02-26 1960-02-26

Publications (1)

Publication Number Publication Date
GB911421A true GB911421A (en) 1962-11-28

Family

ID=21749439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6859/61A Expired GB911421A (en) 1960-02-26 1961-02-24 Method of mixing gases

Country Status (1)

Country Link
GB (1) GB911421A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554362A1 (en) * 1975-01-15 1985-05-10 Comp Generale Electricite Mixing device for gaseous flow
EP0477845A1 (en) * 1990-09-25 1992-04-01 Praxair Technology, Inc. In-line dispersion of gas in liquid
EP0861684A2 (en) * 1997-02-26 1998-09-02 Komax Systems, Inc. Multi path mixing apparatus
EP0983790A2 (en) * 1998-09-04 2000-03-08 Praxair Technology, Inc. Hot gas reactor and process for using same
WO2000038826A1 (en) * 1998-12-24 2000-07-06 Ruhrgas Aktiengesellschaft Device for mixing two fluid components
WO2005056173A1 (en) * 2003-12-09 2005-06-23 Poco Graphite, Inc. System, method, and apparatus for dual gas delivery through a high temperature artifact without undesirable gas mixing
CN113820293A (en) * 2020-06-19 2021-12-21 核工业理化工程研究院 Low-temperature gas spectrum measuring device and using method thereof
EP4052749A1 (en) * 2021-03-05 2022-09-07 Honeywell International Inc. Mixture entrainment device
EP4234079A1 (en) 2022-02-25 2023-08-30 KMB Catalyst Spolka z o.o. Aerodynamic multi-phase reactor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554362A1 (en) * 1975-01-15 1985-05-10 Comp Generale Electricite Mixing device for gaseous flow
EP0477845A1 (en) * 1990-09-25 1992-04-01 Praxair Technology, Inc. In-line dispersion of gas in liquid
EP0861684A2 (en) * 1997-02-26 1998-09-02 Komax Systems, Inc. Multi path mixing apparatus
EP0861684A3 (en) * 1997-02-26 1999-09-22 Komax Systems, Inc. Multi path mixing apparatus
EP0983790A3 (en) * 1998-09-04 2000-08-09 Praxair Technology, Inc. Hot gas reactor and process for using same
EP0983790A2 (en) * 1998-09-04 2000-03-08 Praxair Technology, Inc. Hot gas reactor and process for using same
US6471937B1 (en) 1998-09-04 2002-10-29 Praxair Technology, Inc. Hot gas reactor and process for using same
WO2000038826A1 (en) * 1998-12-24 2000-07-06 Ruhrgas Aktiengesellschaft Device for mixing two fluid components
WO2005056173A1 (en) * 2003-12-09 2005-06-23 Poco Graphite, Inc. System, method, and apparatus for dual gas delivery through a high temperature artifact without undesirable gas mixing
US7258137B2 (en) 2003-12-09 2007-08-21 Poco Graphite, Inc. System, method, and apparatus for dual gas delivery through a high temperature artifact without undesirable gas mixing
CN113820293A (en) * 2020-06-19 2021-12-21 核工业理化工程研究院 Low-temperature gas spectrum measuring device and using method thereof
EP4052749A1 (en) * 2021-03-05 2022-09-07 Honeywell International Inc. Mixture entrainment device
EP4234079A1 (en) 2022-02-25 2023-08-30 KMB Catalyst Spolka z o.o. Aerodynamic multi-phase reactor

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