GB1494812A - Wet-treatment of exhaust gases - Google Patents

Wet-treatment of exhaust gases

Info

Publication number
GB1494812A
GB1494812A GB24508/76A GB2450876A GB1494812A GB 1494812 A GB1494812 A GB 1494812A GB 24508/76 A GB24508/76 A GB 24508/76A GB 2450876 A GB2450876 A GB 2450876A GB 1494812 A GB1494812 A GB 1494812A
Authority
GB
United Kingdom
Prior art keywords
oxides
nitrogen
sulphur
heating
metal iodide
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
GB24508/76A
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of GB1494812A publication Critical patent/GB1494812A/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
    • B01D53/46—Removing components of defined structure
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1494812 Removal of the oxides of nitrogen and sulphur MITSUBISHI JUKOGYO KK 14 June 1976 [19 Aug 1975] 24508/76 Heading C1A Nitrogen oxides and sulphur oxides are removed from exhaust gas by contacting with an absorbent slurry of lime or limestone containing an alkali metal iodide or an alkaline earth metal iodide; the oxides of sulphur are converted to gypsum which is separated out and removed from the system and a part, at least, of the remaining liquid is extracted and treated so as to decompose the nitrogen compounds present, these compounds are for example the calcium hydroxylamine salts and calcium salts of the sulphamine series, e.g. The decomposition of these nitrogen compounds may be achieved by heating, acid hydrolysis followed by heating or by the addition of a nitrite.
GB24508/76A 1975-08-19 1976-06-14 Wet-treatment of exhaust gases Expired GB1494812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50099777A JPS5223563A (en) 1975-08-19 1975-08-19 Wet exhaust gas treatment process

Publications (1)

Publication Number Publication Date
GB1494812A true GB1494812A (en) 1977-12-14

Family

ID=14256370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24508/76A Expired GB1494812A (en) 1975-08-19 1976-06-14 Wet-treatment of exhaust gases

Country Status (4)

Country Link
JP (1) JPS5223563A (en)
DE (1) DE2629181C3 (en)
FR (1) FR2321316A1 (en)
GB (1) GB1494812A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5384111A (en) * 1994-02-03 1995-01-24 Dravo Lime Company Magnesium-enhanced lime scrubbing of sulfur dioxide with production of a high solids content sludge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130574A (en) * 1974-09-09 1976-03-15 Showa Denko Kk CHITSUSOSANKABUTSUNO JOKYOHOHO
JPS5220974A (en) * 1975-08-12 1977-02-17 Mitsubishi Heavy Ind Ltd Process for treating exhaust gas by wet method

Also Published As

Publication number Publication date
FR2321316A1 (en) 1977-03-18
FR2321316B1 (en) 1978-05-12
JPS5223563A (en) 1977-02-22
DE2629181B2 (en) 1979-03-08
JPS547619B2 (en) 1979-04-09
DE2629181C3 (en) 1979-10-31
DE2629181A1 (en) 1977-02-24

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19960613