GB1463855A - Removal of nitrogen oxides - Google Patents

Removal of nitrogen oxides

Info

Publication number
GB1463855A
GB1463855A GB3093074A GB3093074A GB1463855A GB 1463855 A GB1463855 A GB 1463855A GB 3093074 A GB3093074 A GB 3093074A GB 3093074 A GB3093074 A GB 3093074A GB 1463855 A GB1463855 A GB 1463855A
Authority
GB
United Kingdom
Prior art keywords
activated carbon
waste gas
less
gaseous ammonia
mole
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
GB3093074A
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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical 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
Priority claimed from JP48078980A external-priority patent/JPS5248589B2/ja
Priority claimed from JP48107170A external-priority patent/JPS5230144B2/ja
Priority claimed from JP48143174A external-priority patent/JPS5092858A/ja
Application filed by Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Publication of GB1463855A publication Critical patent/GB1463855A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01B21/02—Preparation of nitrogen
    • 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
    • B01D53/8628—Processes characterised by a specific catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/342—Preparation characterised by non-gaseous activating agents
    • C01B32/348—Metallic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (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)

Abstract

1463855 Treating waste gas containing nitrogen oxides TAKEDA YAKUHIN KOGYO KK 12 July 1974 [12 July 1973 21 Sept 1973 20 Dec 1973] 30930/74 Heading C1A Waste gases containing nitrogen oxides are contacted with activated carbon in the presence of gaseous ammonia at a temperature in the range 110‹ to 350‹ C. to convert the nitrogen oxide to nitrogen. The gaseous ammonia is preferably present in a ratio of not less than 2/3 mole per mole, particularly 1-50 moles per mole of the nitrogen oxide in terms of NO contained in the waste gas. The gaseous ammonia may be mixed with waste gas after being diluted with a gaseous diluent such as air, N 2 or CO 2 , particularly when the waste gas is free from O 2 it is desirable to add air so as to give O 2 in the proportion of not less than 0À5 mole per mole. The activated carbon preferably has a surface area of 200 to 2000 m<SP>2</SP>/g. and may have supported thereon one or more of Ti, Cr, Mn, Fe, Co, Ni, Cu, V, Mo and W, or compounds thereof preferably in amounts of not less than 0À001 parts by weight metal per part of activated carbon. The activated carbon may be oxidized with an aqueous solution of H 2 O 2 , HNO 3 , K 2 MnO 4 or NaClO 3 or with a gas such as O 2 , O 3 , SO 3 , SO 2 , N 2 O, NO or NO 2 . When the waste gas also contains sulphur oxides these are converted to and adsorbed as sulphuric acid and/or ammonium sulphate on the activated carbon. The activated carbon may be regenerated by washing it with water, preferably at between 20‹ and 90‹ C. or by heating at above 250‹ C, preferably 350‹ to 800‹ C. The waste gas is preferably contacted with the activated carbon at between 150‹ and 250‹ C. with a space velocity of 100 to 100,000 hr.<SP>-1</SP>.
GB3093074A 1973-07-12 1974-07-12 Removal of nitrogen oxides Expired GB1463855A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP48078980A JPS5248589B2 (en) 1973-07-12 1973-07-12
JP48107170A JPS5230144B2 (en) 1973-09-21 1973-09-21
JP48143174A JPS5092858A (en) 1973-12-20 1973-12-20

Publications (1)

Publication Number Publication Date
GB1463855A true GB1463855A (en) 1977-02-09

Family

ID=27302870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3093074A Expired GB1463855A (en) 1973-07-12 1974-07-12 Removal of nitrogen oxides

Country Status (4)

Country Link
DE (1) DE2433076A1 (en)
FR (1) FR2241609B1 (en)
GB (1) GB1463855A (en)
NL (1) NL180984C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266714A (en) * 2011-06-29 2011-12-07 天津大学 Method for desorbing acidic gas by oxidization process
CN115724477A (en) * 2022-11-30 2023-03-03 衢州华友钴新材料有限公司 Purification method of nickel sulfate solution, modified activated carbon and preparation method thereof

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219537A (en) * 1978-10-31 1980-08-26 Foster Wheeler Energy Corporation Desulfurization and low temperature regeneration of carbonaceous adsorbent
DE3039477A1 (en) * 1979-03-24 1982-05-06 Bergwerksverband Gmbh, 4300 Essen Desulphurisation and denitrification of waste gas - by passing across two travelling beds of partly charged and then fresh carbonaceous adsorbent
DE2911712C2 (en) * 1979-03-24 1991-10-31 Bergwerksverband Gmbh, 4300 Essen Process for removing sulfur oxides and nitrogen oxides from exhaust gases
DE3101053C2 (en) * 1979-03-24 1984-11-29 Bergwerksverband Gmbh, 4300 Essen Process for removing sulfur oxides and nitrogen oxides from exhaust gases and apparatus for carrying out this process
DE3014934A1 (en) * 1980-04-18 1981-10-22 Bergwerksverband Gmbh, 4300 Essen METHOD FOR REMOVING SULFUR OXIDS AND NITROGEN OXIDS FROM EXHAUST GASES
DE3107117A1 (en) * 1981-02-26 1982-09-09 Kali-Chemie Ag, 3000 Hannover "PROCESS FOR SEPARATING NO (DOWN ARROW) X (DOWN ARROW) GAS"
JPS5843222A (en) * 1981-09-10 1983-03-12 Mitsui Mining Co Ltd Method for removing sulfur oxide and nitrogen oxide from waste gas
JPS5843223A (en) * 1981-09-10 1983-03-12 Mitsui Mining Co Ltd Dry type desulfurization and denitration method
DE3447674A1 (en) * 1983-12-30 1985-07-11 Uop Inc., Des Plaines, Ill. Process for removing sulphur oxides from a gas stream
DE3410895A1 (en) * 1984-03-24 1985-10-03 Perfluktiv-Consult AG, Basel METHOD AND SYSTEM FOR REDUCING THE POLLUTANT CONTENT OF SMOKE GASES
DE3511766A1 (en) * 1985-03-30 1986-10-16 Hugo Petersen Gesellschaft für verfahrenstechnischen Anlagenbau mbH & Co KG, 6200 Wiesbaden METHOD FOR DESORPING AN ADSORPTION AGENT LOADED WITH POLLUTANTS, AND SYSTEM FOR CARRYING OUT THE METHOD
DE3710272C1 (en) * 1987-03-28 1988-07-28 Bergwerksverband Gmbh Process for producing a carbon catalyst for NOx reduction with ammonia and its use
DE3727642A1 (en) * 1987-08-19 1989-03-02 Bayer Ag CATALYST, METHOD FOR ITS PRODUCTION AND USE THEREOF
CN112142049A (en) * 2020-09-14 2020-12-29 广东净境环保股份有限公司 Method for preparing fiber adsorption material by using waste fabric
CN114887610B (en) * 2022-05-30 2023-05-23 珠海格力电器股份有限公司 Metal modified activated carbon and preparation method and application thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053613A (en) 1959-06-25 1962-09-11 Engelhard Ind Inc Method of purifying gases containing oxygen and oxides of nitrogen
DE1594674A1 (en) * 1966-05-12 1971-04-22 Bergwerksverband Gmbh Process for removing sulfur oxides from gases containing them
JPS4938210B1 (en) * 1970-04-28 1974-10-16
DE2157062A1 (en) * 1971-11-17 1973-05-30 Bamag Verfahrenstechnik Gmbh Waste gas nitrogen oxides removal - as ammonium nitrate /nitrite on activated charcoal
FR2340763A1 (en) * 1976-02-12 1977-09-09 Hitachi Ltd PROCESS FOR TREATING AN EXHAUST GAS CONTAINING SULFUR OXIDES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266714A (en) * 2011-06-29 2011-12-07 天津大学 Method for desorbing acidic gas by oxidization process
CN102266714B (en) * 2011-06-29 2013-07-03 天津大学 Method for desorbing acidic gas by oxidization process
CN115724477A (en) * 2022-11-30 2023-03-03 衢州华友钴新材料有限公司 Purification method of nickel sulfate solution, modified activated carbon and preparation method thereof

Also Published As

Publication number Publication date
FR2241609A1 (en) 1975-03-21
NL180984B (en) 1987-01-02
DE2433076A1 (en) 1975-02-06
FR2241609B1 (en) 1979-01-26
NL7409500A (en) 1975-01-14
NL180984C (en) 1987-06-01

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Legal Events

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

Effective date: 19940711