GB1242788A - Process and device for ionizing a stream of gas flowing at supersonic speed - Google Patents

Process and device for ionizing a stream of gas flowing at supersonic speed

Info

Publication number
GB1242788A
GB1242788A GB28672/69A GB2867269A GB1242788A GB 1242788 A GB1242788 A GB 1242788A GB 28672/69 A GB28672/69 A GB 28672/69A GB 2867269 A GB2867269 A GB 2867269A GB 1242788 A GB1242788 A GB 1242788A
Authority
GB
United Kingdom
Prior art keywords
gas
stream
supersonic
nozzle
electrode
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
GB28672/69A
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Orkem SA
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
Chimique des Charbonnages SA
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 Institut de Recherches de la Siderurgie Francaise IRSID, Chimique des Charbonnages SA filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Publication of GB1242788A publication Critical patent/GB1242788A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • 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
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/08—Application of shock waves for chemical reactions or for modifying the crystal structure of substances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
    • Y10S422/906—Plasma or ion generation means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1,242,788. Reaction in supersonic gas-stream. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE AND SOC CHIMIQUE DE CHARBONNAGES. 6 June, 1969 [6 June, 1968], No. 28672/69. Heading B1X. [Also in Divisions C5 and H5] A stream of gas flowing at supersonic speed is pre-ionized by an auxiliary electrical discharge before being subjected to a main electrical discharge to produce chemical changes in the gas, e.g. the transformation of butane into acetylene. The apparatus includes a supersonic nozzle 4, an expansion chamber 5 and a gas recompression collector unit 6, with a main axial electrode 11 extending as far as the inlet of unit 6 and between which the main discharge occurs. The auxiliary electrode, which is positioned outside but close to the gas stream 19, is provided by an electrode 16 in the side wall of chamber 5, but alternatively is provided by the supersonic nozzle itself, Fig. 4, (not shown). In the latter embodiment, an insulated spring-pressed metal rod 47, Fig. 4 (not shown), provides for current connection to the nozzle 38. When the nozzle acts as auxiliary electrode it is of tungsten, steel or graphite, and is suitably insulated from the chamber walls.
GB28672/69A 1968-06-06 1969-06-06 Process and device for ionizing a stream of gas flowing at supersonic speed Expired GB1242788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR153935 1968-06-06

Publications (1)

Publication Number Publication Date
GB1242788A true GB1242788A (en) 1971-08-11

Family

ID=8650859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28672/69A Expired GB1242788A (en) 1968-06-06 1969-06-06 Process and device for ionizing a stream of gas flowing at supersonic speed

Country Status (7)

Country Link
US (1) US3620946A (en)
BE (1) BE734229A (en)
DE (1) DE1928617C3 (en)
FR (1) FR1593006A (en)
GB (1) GB1242788A (en)
LU (1) LU58778A1 (en)
NL (1) NL6908663A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9050604B1 (en) 2014-06-06 2015-06-09 LLT International (Ireland) Ltd. Reactor configured to facilitate chemical reactions and/or comminution of solid feed materials
US10427129B2 (en) * 2015-04-17 2019-10-01 LLT International (Ireland) Ltd. Systems and methods for facilitating reactions in gases using shockwaves produced in a supersonic gaseous vortex
US9452434B1 (en) 2015-04-17 2016-09-27 LLT International (Ireland) Ltd. Providing wear resistance in a reactor configured to facilitate chemical reactions and/or comminution of solid feed materials using shockwaves created in a supersonic gaseous vortex
US10434488B2 (en) 2015-08-11 2019-10-08 LLT International (Ireland) Ltd. Systems and methods for facilitating dissociation of methane utilizing a reactor designed to generate shockwaves in a supersonic gaseous vortex

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003939A (en) * 1955-08-31 1961-10-10 Lord Mfg Co Method and apparatus for producing and enhancing chemical reaction in flowable reactant material
NL243438A (en) * 1958-09-25 1900-01-01
US3308050A (en) * 1960-08-01 1967-03-07 Siderurgie Fse Inst Rech Electric discharge apparatus for chemically reacting flowing gases
NL131703C (en) * 1960-08-01 1900-01-01
BE627077A (en) * 1962-01-20
US3347774A (en) * 1964-06-24 1967-10-17 Du Pont Arc furnace for pyrolysis of hydrocarbon to acetylene
US3344051A (en) * 1964-12-07 1967-09-26 Continental Carbon Co Method for the production of carbon black in a high intensity arc
US3537965A (en) * 1969-06-16 1970-11-03 Diamond Shamrock Corp Process for the production of unsaturated hydrocarbons

Also Published As

Publication number Publication date
DE1928617B2 (en) 1975-04-10
US3620946A (en) 1971-11-16
DE1928617C3 (en) 1975-11-20
NL6908663A (en) 1969-12-09
FR1593006A (en) 1970-05-25
DE1928617A1 (en) 1969-12-11
LU58778A1 (en) 1969-10-28
BE734229A (en) 1969-11-17

Similar Documents

Publication Publication Date Title
GB1493394A (en) Plasma heater assembly
Derdouri et al. Study of the decomposition of wet SF6, subjected to 50‐Hz ac corona discharges
GB828699A (en) An improved process for the treatment of tubes of iron, steel or iron alloys
GB1072022A (en) Plasma arc generator with a fluidised bed electrode
GB1242788A (en) Process and device for ionizing a stream of gas flowing at supersonic speed
US3304719A (en) Apparatus and method for heating and accelerating gas
GB1261596A (en) Capillary arc plasma source for and method of spectrochemical analysis
GB1036113A (en) Improvements relating to high frequency torch discharge generators
GB1042409A (en) Method and means for detection of gases and vapors
GB1002191A (en) Improvements relating to spectroscopic analysis
Casadesus et al. On the mechanism of carbon transfer in carburizing technique of iron-base alloys under glow discharge conditions
Bradley et al. An electrical method for breaking shock tube diaphragms
GB1371104A (en) Methods of and apparatus for analysing mixtures
JPS6257068B2 (en)
GB992371A (en) Arc furnace and reaction process
JPS5732637A (en) Dry etching apparatus
GB959464A (en) Arc chamber
SAVITSKII et al. Study of impurities in tungsten and its alloys
GB1305313A (en)
Baronets Cylindrical shock waves generated by a spark discharge and their interaction with the shock waves from a pulsed induction discharge
KALUGIN High-sensitivity method of glow discharge for visualization of supersonic flows of a rarefied gas(High sensitivity method of visualization of supersonic flow of rarefied gas, using glow from cathode parts of glow discharge)
GB970174A (en) Current lead-in for discharge chambers
GB942705A (en) Improvements relating to the production of high-intensity magnetic fields
GB1294853A (en)
FR2025322A5 (en) Vacuum-depositing carbon on ceramics for - layer resistors