GB693775A - Method and apparatus for purifying air contaminated by acid or nitrous impurities - Google Patents

Method and apparatus for purifying air contaminated by acid or nitrous impurities

Info

Publication number
GB693775A
GB693775A GB29001/50A GB2900150A GB693775A GB 693775 A GB693775 A GB 693775A GB 29001/50 A GB29001/50 A GB 29001/50A GB 2900150 A GB2900150 A GB 2900150A GB 693775 A GB693775 A GB 693775A
Authority
GB
United Kingdom
Prior art keywords
nitrous
impurities
acid
purifying air
air contaminated
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
GB29001/50A
Other languages
English (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.)
Colasit AG
Original Assignee
Colasit AG
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 Colasit AG filed Critical Colasit AG
Publication of GB693775A publication Critical patent/GB693775A/en
Expired 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
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/38—Nitric acid
    • C01B21/46—Purification; Separation ; Stabilisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
GB29001/50A 1949-12-08 1950-11-27 Method and apparatus for purifying air contaminated by acid or nitrous impurities Expired GB693775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH693775X 1949-12-08

Publications (1)

Publication Number Publication Date
GB693775A true GB693775A (en) 1953-07-08

Family

ID=4529457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29001/50A Expired GB693775A (en) 1949-12-08 1950-11-27 Method and apparatus for purifying air contaminated by acid or nitrous impurities

Country Status (6)

Country Link
BE (1) BE499856A (fr)
CH (3) CH281744A (fr)
DE (1) DE846542C (fr)
FR (1) FR1029121A (fr)
GB (1) GB693775A (fr)
NL (1) NL79860C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910343A (en) * 1955-12-08 1959-10-27 Du Pont Process for catalytically reducing nitrogen oxides in industrial stack gases

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032640B (de) * 1952-12-04 1958-06-19 Ferdinand Baeuml Vorrichtung zum Absorbieren nitroser und saurer Abluft aus Beiz- und Gelbbrennanlagen
DE2706929C2 (de) * 1977-02-18 1982-12-30 Karl David Heinrich 6840 Lampertheim Heess Verfahren zur Entfernung von Schwefeldioxid aus der Abluft und Vorrichtung zur Durchführung dieses Verfahrens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910343A (en) * 1955-12-08 1959-10-27 Du Pont Process for catalytically reducing nitrogen oxides in industrial stack gases

Also Published As

Publication number Publication date
BE499856A (fr)
CH288070A (de) 1952-12-31
NL79860C (fr)
CH281744A (de) 1952-03-31
FR1029121A (fr) 1953-05-29
CH281748A (de) 1952-03-31
DE846542C (de) 1952-08-14

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