WO2011004239A2 - Catalyseur destiné à la décomposition de l'oxyde nitreux à haute température - Google Patents

Catalyseur destiné à la décomposition de l'oxyde nitreux à haute température Download PDF

Info

Publication number
WO2011004239A2
WO2011004239A2 PCT/IB2010/001656 IB2010001656W WO2011004239A2 WO 2011004239 A2 WO2011004239 A2 WO 2011004239A2 IB 2010001656 W IB2010001656 W IB 2010001656W WO 2011004239 A2 WO2011004239 A2 WO 2011004239A2
Authority
WO
WIPO (PCT)
Prior art keywords
weight
catalyst
high temperature
nitrous oxide
numerical value
Prior art date
Application number
PCT/IB2010/001656
Other languages
English (en)
Other versions
WO2011004239A3 (fr
Inventor
Marek Inger
Andrzej Kotarba
Monika Ruszak
Zbigniew Sojka
Stefan Witkowski
Marcin Wilk
Original Assignee
Instytut Nawozów Sztucznych
Uniwersytet Jagielloński
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 Instytut Nawozów Sztucznych, Uniwersytet Jagielloński filed Critical Instytut Nawozów Sztucznych
Publication of WO2011004239A2 publication Critical patent/WO2011004239A2/fr
Publication of WO2011004239A3 publication Critical patent/WO2011004239A3/fr

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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
    • 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
    • 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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2045—Calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2047—Magnesium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/30—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—Mixed oxides
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/16—Clays or other mineral silicates
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/391—Physical properties of the active metal ingredient
    • B01J35/393—Metal or metal oxide crystallite size
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • 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)

Definitions

  • the first one is based on the high temperature decomposition of nitrous oxide, in ammonium- oxidation reactor in the temperature range of 800-950 0 C, while the second one - is the low temperature decomposition, in the stream of tail gases, within the temperature of 200-450 0 C.
  • Catalyst for high temperature decomposition of nitrous oxide shall exhibit the high activity and selectivity towards N 2 O (decomposition level above 90%), the lack of activity in NO decomposition and high mechanical stability, including catalyst sintering resistance.
  • BASF (V. Schumacher et al., Patent WO9955621) proposed oxide catalyst of which cupric oxide constituted the active phase.
  • Such a system being successfully tested in industrial installation reached the N 2 O conversion of 70-90% with the simultaneous NOx conversion below 0,5%.
  • the most essential problem of its implementation may be the risk of cupric ions leaching from the catalyst and being accommodated in the final product, that is ammonium nitrate.
  • the cupric ions can catalyze the ammonium nitrate spontaneous decomposition and therefore increase the risk of explosion.
  • Krupp Uhde company (M. Schwefer et al., Patent WO0151415) proposed the catalyst based on zeolites doped with iron, that in laboratory conditions reached N 2 O conversion of 100%. Such systems were examined solely in tail gases stream; however they were not tested in process gases existing in ammonia-oxidizing reactor. In such reactor conditions there is the risk of zeolite dealumination and lost of its characteristic properties, as well as, the probability of NO decomposition activity.
  • the catalysts' active components referring to the particular system can consist of the following ions: cobalt, iron, copper, magnesium, calcium, strontium, lanthanum, cerium and platinum.
  • transition metal ions the vital issue is their leaching, that may cause serious problems with final product.
  • the aim of the invention was to develop the catalyst containing the smallest amount of transition metals ions and of high sintering resistance.
  • the nature of the invention is the catalyst for high temperature decomposition of nitrous oxide in the process gas mixture, for installations designed for nitric acid production on the base of aluminates characterized in that the catalyst is composed of CaO from 25 to 49 % by weight and AI 2 O 3 from 26 to 51% by weight and SiO 2 up to 26% by weight, MgO up to 10% by weight, SrO - up to 32% by weight and BaO up to 12% by weight and exists in the form of active catalytically main phase in the minimum amount of 80% of the Mayenite (calcium aluminate) structure CIF 62040- ICSD, described by the chemical formula as: where k has numerical value from 0 to 6, and n has numerical value from 0 to 7, and X stands for the following chemical elements: magnesium or strontium or barium or the mixture of them, and the remaining phase having at least one of
  • Stoichiometry of the main phase that means weight ratios of the particular elements being the components of the active phase, is described by means of the chemical formula abovementioned.
  • the said aluminate phases exist in solid form or as the coating on the support.
  • Mayenite is the calcium aluminate of nanoporous structure, composed of nanocells of formal charge +1/3 that is equilibrated by the charge of exchangeable anions (loosely bound to the lattice structure).
  • oxide ions (among other things O 2 ' , O ' and O 2" ) are generated in mayenite structure, the presence of which is the reason of the catalytic activity in high temperature decomposition reaction of nitrous oxide.
  • Mayenite is the unique calcium aluminate of this type of structure among other calcium aluminates, such as: CaAI 2 O 4 , CaAI 4 Cv, Ca 3 AI 2 Oe, CaAh 2 Oig.
  • the catalyst is the ceramic material of high thermal strength and small specific surface area that makes its being sintering resistant. This material is characterized by the presence of extra-lattice exchangeable oxide ions which can contribute to the N 2 O selective decomposition reaction with no change in the NO concentration.
  • the catalyst according to the invention can be applied to remove N 2 O in ammonia- oxidizing reactor for production of nitric acid.
  • the subject of the invention is presented in more detail in preferable manufacturing examples:
  • the mixture of 25g of CaCO 3 and 14.85 g of AI 2 O 3 was placed in agate ball mill and grinded for 6 hours.
  • the homogenous powder obtained consisted of mainly oblong aggregates of the diameter up to 2 micrometers and standard length of 5-10 micrometers, and was calcined in the platinum crucible at 135O 0 C.
  • the value of the specific surface measured by N 2 -BET method was 1 m 2 /g.
  • the catalyst consisting of, 48.5 wt. % of CaO and 51.5 wt. % OfAI 2 O 3 was obtained.
  • Phase analysis by powder diffraction method of sample material showed the presence of the calcium aluminate of the mayenite structure in the amount of 80% and the remaining phase consisted of Ca 3 AI 2 Oe, CaAI 2 O 4 and Ca 2 AUO?.
  • the catalyst grains size ranged 0.5 - 10 micrometers.
  • the mixture of 3.21 g of AI 2 O 3 , 1.51 g of SiO 2 and 7.57 g of CaCO 3 was prepared and grinded for 6 hours.
  • the powder was calcined in the platinum crucible at 135O 0 C for 6 hours with the same temperature increase rate as in Example 1.
  • the value of the specific surface measured by N 2 -BET method was 1 m 2 /g.
  • the preparation obtained consisted of the following: by weight, 47.3% of CaO, 35.8% Of AI 2 O 3 , 16.9 % of SiO 2 .
  • Phase analysis by powder diffraction method of sample material showed the presence of the calcium aluminate of the mayenite structure in the amount of 90% and the remaining phase consisted of Ca 3 AI 2 Oe, CaAI 2 O 4 and Ca 2 AI 4 07.
  • the catalyst grains size ranged 5 - 10 micrometers.
  • Phase analysis by powder diffraction method of sample material showed the presence of the calcium aluminate of the vnayenite structure in the amount of 95% and the remaining phase consisted of Ca 3 AI 2 O 6 , CaAI 2 O 4 and Ca 2 AI 4 O 7 .
  • the catalyst grains size ranged 0.5 - 10 micrometers.

Landscapes

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

Abstract

La présente invention concerne un catalyseur destiné à la décomposition à haute température de l'oxyde nitreux dans un mélange de gaz de procédé, pour des installations utilisant l'acide nitrique, qui est à base d'aluminates de calcium. Le catalyseur selon l'invention se compose de CaO à raison de 25 à 49 % en poids et d'Al2O3 à raison de 26 à 51 % en poids et de SiO2 jusqu'à 26 % en poids, de MgO jusqu'à 10 % en poids, de SrO jusqu'à 32 % en poids et de BaO jusqu'à 12 % en poids, et se présente sous la forme d'une phase principale catalytiquement active à structure de mayénite CIF 62040-ICSD en une quantité minimale de 80 % représentée par la formule chimique suivante : Ca12-kXkAl14-nSinO33+(n/2), où k vaut entre 0 et 6, et n vaut entre 0 et 7, et X représente les éléments chimiques suivants : magnésium ou strontium ou baryum ou un mélange de ceux-ci, et la phase restante possède au moins un des composants auxiliaires suivants : Ca3Al2O6, CaAl2O4 et Ca2Al4O7, la taille des grains du catalyseur étant de 0,5-10 μm.
PCT/IB2010/001656 2009-07-10 2010-07-06 Catalyseur destiné à la décomposition de l'oxyde nitreux à haute température WO2011004239A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PLP-388518 2009-07-10
PL388518A PL388518A1 (pl) 2009-07-10 2009-07-10 Katalizator do wysokotemperaturowego rozkładu podtlenku azotu

Publications (2)

Publication Number Publication Date
WO2011004239A2 true WO2011004239A2 (fr) 2011-01-13
WO2011004239A3 WO2011004239A3 (fr) 2011-05-05

Family

ID=43301740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/001656 WO2011004239A2 (fr) 2009-07-10 2010-07-06 Catalyseur destiné à la décomposition de l'oxyde nitreux à haute température

Country Status (2)

Country Link
PL (1) PL388518A1 (fr)
WO (1) WO2011004239A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130108459A1 (en) * 2011-10-28 2013-05-02 General Electric Company Mold compositions and methods for casting titanium and titanium aluminide alloys
EP2898946A4 (fr) * 2012-09-20 2016-04-27 Tokyo Inst Tech Catalyseur de génération d'hydrogène et procédé de production d'hydrogène
US9511417B2 (en) 2013-11-26 2016-12-06 General Electric Company Silicon carbide-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys
CN106512997A (zh) * 2016-10-13 2017-03-22 北京石油化工学院 一种直接催化分解n2o的工业催化剂及其制备方法
US9802243B2 (en) 2012-02-29 2017-10-31 General Electric Company Methods for casting titanium and titanium aluminide alloys
WO2020030204A1 (fr) 2018-08-07 2020-02-13 Vysoká Škola Báňská - Technická Univerzita Ostrava Procédé de préparation d'un catalyseur pour l'élimination d'oxyde nitreux de gaz industriels usés et catalyseur préparé par ce procédé

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999007638A1 (fr) 1997-08-12 1999-02-18 L. & C. Steinmüller Gmbh Procede de fabrication d'acide nitrique et dispositif pour la mise en oeuvre de ce procede
WO1999055621A1 (fr) 1998-04-27 1999-11-04 Basf Aktiengesellschaft Procede pour la decomposition catalytique de n2o
WO1999064139A1 (fr) 1998-06-05 1999-12-16 Grande-Paroisse S.A. Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondants
WO2000013789A1 (fr) 1998-09-09 2000-03-16 Porzellanwerk Kloster Veilsdorf Gmbh Catalyseur ceramique de decomposition selective de n2o et procede permettant de le produire
WO2001051415A1 (fr) 2000-01-14 2001-07-19 Krupp Uhde Gmbh Elimination de gaz hilarant lors de la production d'acide nitrique
WO2002002230A1 (fr) 2000-07-05 2002-01-10 Norsk Hydro Asa Catalyseur destine a la decomposition d'oxyde nitreux et procede d'execution de traitement comprenant la formation d'oxyde nitreux
WO2004096702A2 (fr) 2003-04-29 2004-11-11 Johnson Matthey Plc Conception de charge de catalyseur amelioree

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1313697B1 (it) * 1999-12-17 2002-09-09 Enichem Spa Catalizzatore per reazioni di steam cracking.
JP2007083126A (ja) * 2005-09-20 2007-04-05 Hirosaki Univ 酸素貯蔵物質および自動車排ガス浄化用三元触媒における酸素貯蔵方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999007638A1 (fr) 1997-08-12 1999-02-18 L. & C. Steinmüller Gmbh Procede de fabrication d'acide nitrique et dispositif pour la mise en oeuvre de ce procede
WO1999055621A1 (fr) 1998-04-27 1999-11-04 Basf Aktiengesellschaft Procede pour la decomposition catalytique de n2o
WO1999064139A1 (fr) 1998-06-05 1999-12-16 Grande-Paroisse S.A. Procede pour l'abattement du protoxyde d'azote dans les gaz et catalyseurs correspondants
WO2000013789A1 (fr) 1998-09-09 2000-03-16 Porzellanwerk Kloster Veilsdorf Gmbh Catalyseur ceramique de decomposition selective de n2o et procede permettant de le produire
WO2001051415A1 (fr) 2000-01-14 2001-07-19 Krupp Uhde Gmbh Elimination de gaz hilarant lors de la production d'acide nitrique
WO2002002230A1 (fr) 2000-07-05 2002-01-10 Norsk Hydro Asa Catalyseur destine a la decomposition d'oxyde nitreux et procede d'execution de traitement comprenant la formation d'oxyde nitreux
WO2004096702A2 (fr) 2003-04-29 2004-11-11 Johnson Matthey Plc Conception de charge de catalyseur amelioree

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
J. PEMZ-RAMIREZ ET AL., LAPPL. CATAL. B, vol. 44, 2003, pages 117 - 151
M. SANTIAGO ET AL., ENVIRON. SCI TECHNOL., vol. 41, 2007, pages 1704

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130108459A1 (en) * 2011-10-28 2013-05-02 General Electric Company Mold compositions and methods for casting titanium and titanium aluminide alloys
CN103889614A (zh) * 2011-10-28 2014-06-25 通用电气公司 用于铸造钛和铝化钛合金的铸模组合物和方法
US8858697B2 (en) * 2011-10-28 2014-10-14 General Electric Company Mold compositions
US9095893B2 (en) 2011-10-28 2015-08-04 General Electric Company Methods for casting titanium and titanium aluminide alloys
US9802243B2 (en) 2012-02-29 2017-10-31 General Electric Company Methods for casting titanium and titanium aluminide alloys
EP2898946A4 (fr) * 2012-09-20 2016-04-27 Tokyo Inst Tech Catalyseur de génération d'hydrogène et procédé de production d'hydrogène
US9511417B2 (en) 2013-11-26 2016-12-06 General Electric Company Silicon carbide-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys
CN106512997A (zh) * 2016-10-13 2017-03-22 北京石油化工学院 一种直接催化分解n2o的工业催化剂及其制备方法
WO2020030204A1 (fr) 2018-08-07 2020-02-13 Vysoká Škola Báňská - Technická Univerzita Ostrava Procédé de préparation d'un catalyseur pour l'élimination d'oxyde nitreux de gaz industriels usés et catalyseur préparé par ce procédé

Also Published As

Publication number Publication date
WO2011004239A3 (fr) 2011-05-05
PL388518A1 (pl) 2011-01-17

Similar Documents

Publication Publication Date Title
US5830822A (en) High temperature resistant oxidation catalyst, a process for its preparation and a combustion process using this catalyst
WO2011004239A2 (fr) Catalyseur destiné à la décomposition de l'oxyde nitreux à haute température
AU2008286480B2 (en) Catalyst, production method therefor and use thereof for decomposing N2O
JPH0586258B2 (fr)
JP5146943B2 (ja) 排ガス浄化用触媒及びその製造方法
JP2012524658A5 (fr)
CN101218026A (zh) 氧化铝基钙钛矿催化剂和催化剂载体
EP3290112B1 (fr) Catalyseur pour la purification de gaz d'échappement
CN1440309A (zh) 用于分解一氧化二氮的催化剂和实施包括生成一氧化二氮的工艺的方法
WO2016203371A1 (fr) Amélioration des performances de spinelle ternaire contenant du cuivre et du manganèse utilisés comme catalyseurs à trois voies exempts de métal noble
JP2010260046A (ja) 排ガス浄化用触媒
JP5506478B2 (ja) 排ガス浄化用触媒
JP4296430B2 (ja) 水性ガスシフト反応用の触媒及びその製造方法
JPWO2018123862A1 (ja) 排気ガス浄化触媒
CN111278555B (zh) 废气净化用组合物
US20170095800A1 (en) Nickel-Doped Copper-Manganese Spinel as Zero-PGM Catalyst for TWC Applications
JP2017132663A (ja) アルミナ系複合酸化物及びその製造方法
CN115501881B (zh) 丙烯氨氧化制丙烯腈催化剂颗粒及其制备方法和应用
JP6670880B2 (ja) 酸素貯蔵材料及びその製造方法
Jaworska-Galas et al. Thermal stability improvement of hopcalite catalyst
JP6770265B2 (ja) 排気ガス浄化用触媒
JP3270072B2 (ja) 燃焼用触媒
JP2012196653A (ja) 触媒担体、それを用いた排ガス浄化用触媒、及び、その排ガス浄化用触媒を用いた排ガス浄化方法
CN113557076B (zh) 废气净化催化剂以及废气处理装置
JP6774654B2 (ja) 排ガス浄化触媒及び排ガス浄化方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10754986

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10754986

Country of ref document: EP

Kind code of ref document: A2