JPS56166943A - Preparation of catalyst for removing nitrogen oxides - Google Patents

Preparation of catalyst for removing nitrogen oxides

Info

Publication number
JPS56166943A
JPS56166943A JP6968280A JP6968280A JPS56166943A JP S56166943 A JPS56166943 A JP S56166943A JP 6968280 A JP6968280 A JP 6968280A JP 6968280 A JP6968280 A JP 6968280A JP S56166943 A JPS56166943 A JP S56166943A
Authority
JP
Japan
Prior art keywords
catalyst
inorg
mixed
molded
added
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.)
Granted
Application number
JP6968280A
Other languages
Japanese (ja)
Other versions
JPS6323830B2 (en
Inventor
Masao Ota
Yasuyoshi Kato
Kunihiko Konishi
Atsuko Imahashi
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 Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP6968280A priority Critical patent/JPS56166943A/en
Priority to GB8115985A priority patent/GB2079172B/en
Publication of JPS56166943A publication Critical patent/JPS56166943A/en
Publication of JPS6323830B2 publication Critical patent/JPS6323830B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/04—Mixing
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE:To obtain a catalyst with enhanced denitration reaction activity in a low temp. range by a method wherein a catalyst stock compound with a specific metal component is mixed in a dry and crispy condition and, further, an inorg. fibrous substance is added and kneaded in a viscous condition and, thereafter, the resulting mixture is molded. CONSTITUTION:To a catalyst stock compound containing at least one metal component selected from a group consisting of Ti, V, Mo, W, Sn, Cr, Mn and Fe, a small amount of water is added and mixed to form a pendular state. Subsequently, an inorg. fibrous substance is mixed therein and, further, water is added thereto and mixed so as to form a funicular or a capillary state. The resulting mixture is molded by extrusion according to a conventional method and the obtained molded product is dried, ground, screened and molded into a tablet to obtain a catalyst. Further, as the inorg. fibrous substance, at least one is selected from silica, silica- alumina, alumina and an inorg. glass and a diameter thereof is about 1-10mum and an adding amount thereof is about 0.1-50% per catalyst weight.
JP6968280A 1980-05-27 1980-05-27 Preparation of catalyst for removing nitrogen oxides Granted JPS56166943A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6968280A JPS56166943A (en) 1980-05-27 1980-05-27 Preparation of catalyst for removing nitrogen oxides
GB8115985A GB2079172B (en) 1980-05-27 1981-05-26 Catalyst for removing nitrogen oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6968280A JPS56166943A (en) 1980-05-27 1980-05-27 Preparation of catalyst for removing nitrogen oxides

Publications (2)

Publication Number Publication Date
JPS56166943A true JPS56166943A (en) 1981-12-22
JPS6323830B2 JPS6323830B2 (en) 1988-05-18

Family

ID=13409871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6968280A Granted JPS56166943A (en) 1980-05-27 1980-05-27 Preparation of catalyst for removing nitrogen oxides

Country Status (2)

Country Link
JP (1) JPS56166943A (en)
GB (1) GB2079172B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002370035A (en) * 2001-06-15 2002-12-24 Suzuki Motor Corp Exhaust cleaning catalyst and production method thereof
JP2006021142A (en) * 2004-07-08 2006-01-26 Babcock Hitachi Kk Regenerated denitrification catalyst and production method therefor

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520024A1 (en) * 1985-06-04 1986-12-04 Süd-Chemie AG, 8000 München CATALYST FOR REDUCING THE NITROGEN OXIDE CONTENT OF COMBUSTION EXHAUST GASES
DE3532207A1 (en) * 1985-09-10 1987-03-19 Didier Eng METHOD FOR PRODUCING CATALYST SHAPES
DE3544913A1 (en) * 1985-12-19 1987-06-25 Didier Werke Ag METHOD FOR PRODUCING CATALYST MOLDED BODIES BY PRESSING FROM GRAINY CATALYST MATERIAL, e.g. IRON, CHROME OR THE LIKE ORE, USING A BINDING AGENT
DE3778611D1 (en) * 1986-07-25 1992-06-04 Mitsubishi Petrochemical Co METHOD OF DENICKING NITROGEN OXIDE IN EXHAUST GAS.
FI873979A0 (en) * 1986-10-08 1987-09-14 Kraftwerk Union Ag CATALYSATOR MATERIAL FOR REDUCERING AV MAENGDEN KVAEVEOXIDER I ROEKGASER.
ATE114494T1 (en) * 1988-04-08 1994-12-15 Mitsubishi Heavy Ind Ltd CATALYTIC FILTER, METHOD OF MANUFACTURE OF A CATALYTIC FILTER AND METHOD OF TREATMENT OF COMBUSTION GASES WITH A CATALYTIC FILTER.
EP0375391B2 (en) * 1988-12-21 1997-09-17 Babcock-Hitachi Kabushiki Kaisha Process for producing a catalyst for removing nitrogen oxides
WO1993002776A1 (en) * 1991-07-29 1993-02-18 British Technology Group Ltd. Catalyst and catalytic reduction
GB2272172B (en) * 1991-07-29 1995-11-29 British Tech Group Catalyst and catalytic reduction
DE4437424A1 (en) * 1994-10-20 1996-04-25 Hoechst Ag Airgel-containing composition, process for its preparation and its use
MX2020010426A (en) 2018-04-04 2020-10-28 Unifrax I Llc Activated porous fibers and products including same.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494690A (en) * 1972-05-04 1974-01-16
JPS4936595A (en) * 1972-08-08 1974-04-04
JPS5265191A (en) * 1975-11-25 1977-05-30 Mitsubishi Petrochem Co Ltd Catalytic moldings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494690A (en) * 1972-05-04 1974-01-16
JPS4936595A (en) * 1972-08-08 1974-04-04
JPS5265191A (en) * 1975-11-25 1977-05-30 Mitsubishi Petrochem Co Ltd Catalytic moldings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002370035A (en) * 2001-06-15 2002-12-24 Suzuki Motor Corp Exhaust cleaning catalyst and production method thereof
JP4639536B2 (en) * 2001-06-15 2011-02-23 スズキ株式会社 Exhaust gas purification catalyst and method for producing the same
JP2006021142A (en) * 2004-07-08 2006-01-26 Babcock Hitachi Kk Regenerated denitrification catalyst and production method therefor
JP4518851B2 (en) * 2004-07-08 2010-08-04 バブコック日立株式会社 Regenerative denitration catalyst and its production method

Also Published As

Publication number Publication date
GB2079172B (en) 1984-01-11
GB2079172A (en) 1982-01-20
JPS6323830B2 (en) 1988-05-18

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