CH281748A - Process for removing acidic and nitrous pollutants from air and apparatus for carrying out this process. - Google Patents

Process for removing acidic and nitrous pollutants from air and apparatus for carrying out this process.

Info

Publication number
CH281748A
CH281748A CH281748DA CH281748A CH 281748 A CH281748 A CH 281748A CH 281748D A CH281748D A CH 281748DA CH 281748 A CH281748 A CH 281748A
Authority
CH
Switzerland
Prior art keywords
nitrous
pollutants
carrying
air
removing acidic
Prior art date
Application number
Other languages
German (de)
Inventor
Colasit Aktiengesellschaft
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 CH281748A publication Critical patent/CH281748A/en

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)
CH281748D 1949-12-08 1950-01-25 Process for removing acidic and nitrous pollutants from air and apparatus for carrying out this process. CH281748A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH281748A true CH281748A (en) 1952-03-31

Family

ID=4529457

Family Applications (3)

Application Number Title Priority Date Filing Date
CH281744D CH281744A (en) 1949-12-08 1949-12-08 Process for removing acid and nitrous contaminants from air.
CH281748D CH281748A (en) 1949-12-08 1950-01-25 Process for removing acidic and nitrous pollutants from air and apparatus for carrying out this process.
CH288070D CH288070A (en) 1949-12-08 1950-02-01 Process for removing acidic and nitrous pollutants from air and apparatus for carrying out this process.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH281744D CH281744A (en) 1949-12-08 1949-12-08 Process for removing acid and nitrous contaminants from air.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH288070D CH288070A (en) 1949-12-08 1950-02-01 Process for removing acidic and nitrous pollutants from air and apparatus for carrying out this process.

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706929A1 (en) * 1977-02-18 1978-08-24 Karl David Heinrich Heess METHOD FOR REMOVING SULFUR DIOXIDE FROM EXHAUST AIR AND DEVICE FOR CARRYING OUT THIS METHOD

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032640B (en) * 1952-12-04 1958-06-19 Ferdinand Baeuml Device for absorbing nitrous and acidic exhaust air from pickling and yellow-burning systems
BE553186A (en) * 1955-12-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706929A1 (en) * 1977-02-18 1978-08-24 Karl David Heinrich Heess METHOD FOR REMOVING SULFUR DIOXIDE FROM EXHAUST AIR AND DEVICE FOR CARRYING OUT THIS METHOD

Also Published As

Publication number Publication date
BE499856A (en)
FR1029121A (en) 1953-05-29
CH288070A (en) 1952-12-31
DE846542C (en) 1952-08-14
CH281744A (en) 1952-03-31
GB693775A (en) 1953-07-08
NL79860C (en)

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