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GB746266A - Contact element - Google Patents

Contact element

Info

Publication number
GB746266A
GB746266A GB31981/54A GB3198154A GB746266A GB 746266 A GB746266 A GB 746266A GB 31981/54 A GB31981/54 A GB 31981/54A GB 3198154 A GB3198154 A GB 3198154A GB 746266 A GB746266 A GB 746266A
Authority
GB
United Kingdom
Prior art keywords
coils
catalytic
pict
turns
coil
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
GB31981/54A
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.)
Oxy Catalyst Inc
Original Assignee
Oxy Catalyst Inc
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 Oxy Catalyst Inc filed Critical Oxy Catalyst Inc
Publication of GB746266A publication Critical patent/GB746266A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/391—Physical properties of the active metal ingredient
    • B01J35/395—Thickness of the active catalytic layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/864—Removing carbon monoxide or hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Resistance Heating (AREA)
  • Catalysts (AREA)

Abstract

<PICT:0746266/III/1> <PICT:0746266/III/2> A contact element comprises spiral coils 1a, 1b of electrical resistance wire arranged in parallel, slightly-spaced-apart relationship, and with the turns of one coil in alignment with the spaces between the turns of the other coil. The coils are made from a continuous length of wire and are connected at their centres by a loop B, and have leads 3, 4 whereby current is passed through them in series. A thin mica strip 2 separates the coils so that a gas may pass through them. The surface of the coils may include a thin coating of catalytic inorganic oxide such as catalytic alumina, beryllia, magnesia or thoria, or mixtures thereof, this film being impregnated with a small concentration of a catalytic metal such as platinum, palladium, silver &c. A number of such elements may be spaced along a heat insulated ceramic tube through which a gaseous stream is passed, e.g. an air stream contaminated with smoke or cooking odours &c.
GB31981/54A 1953-11-10 1954-11-04 Contact element Expired GB746266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US746266XA 1953-11-10 1953-11-10

Publications (1)

Publication Number Publication Date
GB746266A true GB746266A (en) 1956-03-14

Family

ID=22120627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31981/54A Expired GB746266A (en) 1953-11-10 1954-11-04 Contact element

Country Status (1)

Country Link
GB (1) GB746266A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000045A (en) * 1977-06-20 1979-01-04 Atomic Energy Authority Uk Device for Treating Fluid
GB2366204A (en) * 2000-05-08 2002-03-06 Gaia Co Ltd Deodorization apparatus
WO2021115950A1 (en) * 2019-12-09 2021-06-17 Vitesco Technologies GmbH Apparatus for exhaust gas aftertreatment having an annular heated disc

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000045A (en) * 1977-06-20 1979-01-04 Atomic Energy Authority Uk Device for Treating Fluid
GB2000045B (en) * 1977-06-20 1982-01-20 Atomic Energy Authority Uk Improvements in or relating to fluid treatment devices
GB2366204A (en) * 2000-05-08 2002-03-06 Gaia Co Ltd Deodorization apparatus
GB2366204B (en) * 2000-05-08 2002-07-03 Gaia Co Ltd Deodorization apparatus
WO2021115950A1 (en) * 2019-12-09 2021-06-17 Vitesco Technologies GmbH Apparatus for exhaust gas aftertreatment having an annular heated disc
US11808191B2 (en) 2019-12-09 2023-11-07 Vitesco Technologies GmbH Apparatus for exhaust gas aftertreatment having an annular heated disc

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