FR2213095A1 - Catalyst chamber for gas treatment - catalyst deposition process gives economical use and large specific surface - Google Patents

Catalyst chamber for gas treatment - catalyst deposition process gives economical use and large specific surface

Info

Publication number
FR2213095A1
FR2213095A1 FR7238542A FR7238542A FR2213095A1 FR 2213095 A1 FR2213095 A1 FR 2213095A1 FR 7238542 A FR7238542 A FR 7238542A FR 7238542 A FR7238542 A FR 7238542A FR 2213095 A1 FR2213095 A1 FR 2213095A1
Authority
FR
France
Prior art keywords
catalyst
particles
specific surface
process gives
deposition process
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.)
Granted
Application number
FR7238542A
Other languages
French (fr)
Other versions
FR2213095B1 (en
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.)
EQUIPINOX SA
Original Assignee
EQUIPINOX 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 EQUIPINOX SA filed Critical EQUIPINOX SA
Priority to FR7238542A priority Critical patent/FR2213095A1/en
Publication of FR2213095A1 publication Critical patent/FR2213095A1/en
Application granted granted Critical
Publication of FR2213095B1 publication Critical patent/FR2213095B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating

Landscapes

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

Abstract

A catalytic chamber consists of an enclosure, through which can flow a gas which is to be treated, and a catalyst support. The catalyst support is coated with a ceramic matl. which is heated to a temp. at which its viscosity reaches a critical value. Particles of a substance having a high microporosity are then deposited on the ceramic material. The critical value of the viscosity is low enough for the particles to adhere to the surface but high enough for only a part to adhere, so that the initial microporosity is maintained. The particles may be a catalyst support e.g. alumina (Al2O3) or the catalyst itself. The process gives increased specific surface between particles and gas and therefore increased efficiency. A specific application is depositing catalyst on motor vehicle systems.
FR7238542A 1972-10-31 1972-10-31 Catalyst chamber for gas treatment - catalyst deposition process gives economical use and large specific surface Granted FR2213095A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7238542A FR2213095A1 (en) 1972-10-31 1972-10-31 Catalyst chamber for gas treatment - catalyst deposition process gives economical use and large specific surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238542A FR2213095A1 (en) 1972-10-31 1972-10-31 Catalyst chamber for gas treatment - catalyst deposition process gives economical use and large specific surface

Publications (2)

Publication Number Publication Date
FR2213095A1 true FR2213095A1 (en) 1974-08-02
FR2213095B1 FR2213095B1 (en) 1980-04-18

Family

ID=9106457

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7238542A Granted FR2213095A1 (en) 1972-10-31 1972-10-31 Catalyst chamber for gas treatment - catalyst deposition process gives economical use and large specific surface

Country Status (1)

Country Link
FR (1) FR2213095A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004265A1 (en) * 1985-01-17 1986-07-31 Kraftanlagen Ag Carrier matrix for collecting catalytically active compounds and production process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004265A1 (en) * 1985-01-17 1986-07-31 Kraftanlagen Ag Carrier matrix for collecting catalytically active compounds and production process

Also Published As

Publication number Publication date
FR2213095B1 (en) 1980-04-18

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Legal Events

Date Code Title Description
ST Notification of lapse