NL79860C - - Google Patents

Info

Publication number
NL79860C
NL79860C NL79860DA NL79860C NL 79860 C NL79860 C NL 79860C NL 79860D A NL79860D A NL 79860DA NL 79860 C NL79860 C NL 79860C
Authority
NL
Netherlands
Prior art keywords
catalyst
layer
air
surface catalyst
pumice
Prior art date
Application number
Other languages
English (en)
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.)
Publication of NL79860C publication Critical patent/NL79860C/xx

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)
NL79860D 1949-12-08 NL79860C (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL79860C true NL79860C (fr)

Family

ID=4529457

Family Applications (1)

Application Number Title Priority Date Filing Date
NL79860D NL79860C (fr) 1949-12-08

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)

Families Citing this family (3)

* 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
BE553186A (fr) * 1955-12-08
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

Also Published As

Publication number Publication date
BE499856A (fr)
CH288070A (de) 1952-12-31
CH281744A (de) 1952-03-31
FR1029121A (fr) 1953-05-29
CH281748A (de) 1952-03-31
DE846542C (de) 1952-08-14
GB693775A (en) 1953-07-08

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