CH612595A5 - Process for conducting chemical reactions in the presence of electrical discharges - Google Patents

Process for conducting chemical reactions in the presence of electrical discharges

Info

Publication number
CH612595A5
CH612595A5 CH487276A CH487276A CH612595A5 CH 612595 A5 CH612595 A5 CH 612595A5 CH 487276 A CH487276 A CH 487276A CH 487276 A CH487276 A CH 487276A CH 612595 A5 CH612595 A5 CH 612595A5
Authority
CH
Switzerland
Prior art keywords
dielectric
plates
electrical discharges
ozone
conduit
Prior art date
Application number
CH487276A
Inventor
Frank Eugene Lowther
Original Assignee
Union Carbide Corp
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
Priority claimed from US05/632,580 external-priority patent/US4038165A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of CH612595A5 publication Critical patent/CH612595A5/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • C01B13/115—Preparation of ozone by electric discharge characterised by the electrical circuits producing the electrical discharge
    • 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
    • B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • 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
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0845—Details relating to the type of discharge
    • B01J2219/0849—Corona pulse discharge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Ozone is produced from air by means of electrical discharges. In order to increase the yield and to decrease the unproductive energy, a cell is employed comprising a gastight outer enclosure (1) and two opposed electrodes (2 and 3) packed internally with dielectric plates (4 and 5) which define a discharge space (14). The thickness td of the dielectric plates is considerably exaggerated in the figure, as is the dimension tg. The dielectric thickness td can vary between 0.1 mm and 25 or even 50 mm in some applications. Similarly, the width tg of the discharge space may be between 0.1 and 50 mm. The air enters the cell via a conduit (10) and the ozone is extracted via a conduit (11). To obtain satisfactory results in practice, the plates (4 and 5) must be made of a material of high dielectric strength, such as glass, capable of withstanding electrical fields of the order of 100 to 1000 kV/cm. <IMAGE>
CH487276A 1975-11-17 1976-04-15 Process for conducting chemical reactions in the presence of electrical discharges CH612595A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/632,580 US4038165A (en) 1975-03-13 1975-11-17 Corona reaction method

Publications (1)

Publication Number Publication Date
CH612595A5 true CH612595A5 (en) 1979-08-15

Family

ID=24536097

Family Applications (1)

Application Number Title Priority Date Filing Date
CH487276A CH612595A5 (en) 1975-11-17 1976-04-15 Process for conducting chemical reactions in the presence of electrical discharges

Country Status (11)

Country Link
AU (1) AU504023B2 (en)
BR (1) BR7602285A (en)
CA (1) CA1066659A (en)
CH (1) CH612595A5 (en)
DE (1) DE2617104A1 (en)
FR (1) FR2338074A2 (en)
GB (1) GB1551951A (en)
IT (1) IT1058158B (en)
NL (1) NL7604086A (en)
NO (1) NO761302L (en)
SE (1) SE432092B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH642606A5 (en) * 1980-01-14 1984-04-30 Bbc Brown Boveri & Cie OZONIZER.
DE3027112A1 (en) * 1980-07-17 1982-02-11 Siemens AG, 1000 Berlin und 8000 München Ozone generator supplied with pulsed alternating voltage - of small pulse width compared with frequency to improve generating efficiency
DE3134501A1 (en) * 1981-09-01 1983-08-11 Nikolaj Ivanovi&ccaron; &Ccaron;ebankov Ultra high frequency plasmatron and an installation for obtaining very finely divided powder
GB9019218D0 (en) * 1990-08-31 1990-10-17 Atomic Energy Authority Uk Gas stream treatment
DE19610137A1 (en) * 1996-03-14 1997-09-18 Siemens Ag Vehicle exhaust cleaner using electrical discharge
DE10005346B4 (en) * 2000-02-08 2004-04-29 Ralf Pfeifer Procedure for determining a person's physical training status

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE566012A (en) * 1957-03-25
US3798457A (en) * 1969-06-04 1974-03-19 Grace W R & Co Corona reactor apparatus
GB1441931A (en) * 1972-09-25 1976-07-07 Avco Corp Electrochemical generator
FR2237675A1 (en) * 1973-07-18 1975-02-14 Le Elekt Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer
CA1024097A (en) * 1973-08-13 1978-01-10 Union Carbide Corporation Corona reaction system

Also Published As

Publication number Publication date
DE2617104A1 (en) 1977-05-26
FR2338074B2 (en) 1980-07-25
NO761302L (en) 1977-05-20
SE7604399L (en) 1977-05-18
CA1066659A (en) 1979-11-20
BR7602285A (en) 1977-05-10
FR2338074A2 (en) 1977-08-12
AU1308776A (en) 1977-10-20
GB1551951A (en) 1979-09-05
AU504023B2 (en) 1979-09-27
NL7604086A (en) 1977-05-20
IT1058158B (en) 1982-04-10
SE432092B (en) 1984-03-19

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Legal Events

Date Code Title Description
PL Patent ceased