CA1100292A - Catalyse - Google Patents

Catalyse

Info

Publication number: CA1100292A
Authority: CA; Canada
Prior art keywords: catalyst; process according; oxide; silica; run
Prior art date: 1976-03-18
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

CA274,184A

Other languages

English (en)

Inventor

Stephen J. Knight

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.)

Johnson Matthey PLC

Original Assignee

Johnson Matthey PLC

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.)

1976-03-18

Filing date

1977-03-17

Publication date

1981-05-05

1977-03-17 Application filed by Johnson Matthey PLC filed Critical Johnson Matthey PLC

1981-05-05 Application granted granted Critical

1981-05-05 Publication of CA1100292A publication Critical patent/CA1100292A/fr

Status Expired legal-status Critical Current

Links

238000006555 catalytic reaction Methods 0.000 title 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 110
239000003054 catalyst Substances 0.000 claims abstract description 61
239000000377 silicon dioxide Substances 0.000 claims abstract description 54
229910052751 metal Inorganic materials 0.000 claims abstract description 30
239000002184 metal Substances 0.000 claims abstract description 30
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 30
239000007789 gas Substances 0.000 claims abstract description 26
238000000034 method Methods 0.000 claims abstract description 25
239000010948 rhodium Substances 0.000 claims abstract description 22
150000002739 metals Chemical class 0.000 claims abstract description 9
239000000203 mixture Substances 0.000 claims abstract description 9
229910052697 platinum Inorganic materials 0.000 claims abstract description 8
229910052703 rhodium Inorganic materials 0.000 claims abstract description 8
MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract description 8
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 6
229910052763 palladium Inorganic materials 0.000 claims abstract description 4
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 14
229910052757 nitrogen Inorganic materials 0.000 claims description 10
239000010970 precious metal Substances 0.000 claims description 9
239000000758 substrate Substances 0.000 claims description 6
238000002485 combustion reaction Methods 0.000 claims description 5
238000006722 reduction reaction Methods 0.000 claims description 5
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
230000001590 oxidative effect Effects 0.000 claims description 4
229910052719 titanium Inorganic materials 0.000 claims description 4
239000010936 titanium Substances 0.000 claims description 4
229910052684 Cerium Inorganic materials 0.000 claims description 3
239000000956 alloy Substances 0.000 claims description 3
229910045601 alloy Inorganic materials 0.000 claims description 3
229910052746 lanthanum Inorganic materials 0.000 claims description 3
FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 3
-1 palladium metals Chemical class 0.000 claims description 3
239000010953 base metal Substances 0.000 claims description 2
238000010531 catalytic reduction reaction Methods 0.000 claims description 2
210000003850 cellular structure Anatomy 0.000 claims description 2
230000001737 promoting effect Effects 0.000 claims description 2
GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
239000000463 material Substances 0.000 claims 1
230000003197 catalytic effect Effects 0.000 abstract description 11
229910052741 iridium Inorganic materials 0.000 abstract description 6
GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 abstract description 6
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 5
238000000746 purification Methods 0.000 abstract description 3
KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 abstract description 2
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 2
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 2
229910052737 gold Inorganic materials 0.000 abstract description 2
239000010931 gold Substances 0.000 abstract description 2
229910052762 osmium Inorganic materials 0.000 abstract description 2
SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 abstract description 2
229910052707 ruthenium Inorganic materials 0.000 abstract description 2
229910052709 silver Inorganic materials 0.000 abstract description 2
239000004332 silver Substances 0.000 abstract description 2
235000012239 silicon dioxide Nutrition 0.000 description 28
229910052681 coesite Inorganic materials 0.000 description 26
229910052906 cristobalite Inorganic materials 0.000 description 26
229910052682 stishovite Inorganic materials 0.000 description 26
229910052905 tridymite Inorganic materials 0.000 description 26
238000000354 decomposition reaction Methods 0.000 description 18
230000000694 effects Effects 0.000 description 17
GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 16
229910052760 oxygen Inorganic materials 0.000 description 10
239000001301 oxygen Substances 0.000 description 10
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
239000000919 ceramic Substances 0.000 description 7
238000011068 loading method Methods 0.000 description 7
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
229910002091 carbon monoxide Inorganic materials 0.000 description 6
238000002474 experimental method Methods 0.000 description 6
230000015572 biosynthetic process Effects 0.000 description 5
229930195733 hydrocarbon Natural products 0.000 description 5
150000002430 hydrocarbons Chemical class 0.000 description 5
238000004519 manufacturing process Methods 0.000 description 5
239000001272 nitrous oxide Substances 0.000 description 5
238000007254 oxidation reaction Methods 0.000 description 5
238000010438 heat treatment Methods 0.000 description 4
230000003647 oxidation Effects 0.000 description 4
231100000572 poisoning Toxicity 0.000 description 4
230000000607 poisoning effect Effects 0.000 description 4
239000000243 solution Substances 0.000 description 4
239000008187 granular material Substances 0.000 description 3
239000004606 Fillers/Extenders Substances 0.000 description 2
241000264877 Hippospongia communis Species 0.000 description 2
CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
239000000654 additive Substances 0.000 description 2
239000007864 aqueous solution Substances 0.000 description 2
238000003421 catalytic decomposition reaction Methods 0.000 description 2
ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 2
239000011248 coating agent Substances 0.000 description 2
238000000576 coating method Methods 0.000 description 2
238000001035 drying Methods 0.000 description 2
229910017604 nitric acid Inorganic materials 0.000 description 2
150000002894 organic compounds Chemical class 0.000 description 2
239000008188 pellet Substances 0.000 description 2
239000000843 powder Substances 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
239000011819 refractory material Substances 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
241000894007 species Species 0.000 description 2
NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
241000282326 Felis catus Species 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
239000004411 aluminium Substances 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
229910000323 aluminium silicate Inorganic materials 0.000 description 1
230000003466 anti-cipated effect Effects 0.000 description 1
229910052790 beryllium Inorganic materials 0.000 description 1
ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
239000011575 calcium Substances 0.000 description 1
210000004027 cell Anatomy 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
229910052878 cordierite Inorganic materials 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000008021 deposition Effects 0.000 description 1
238000007865 diluting Methods 0.000 description 1
239000003085 diluting agent Substances 0.000 description 1
JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
238000007598 dipping method Methods 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000005243 fluidization Methods 0.000 description 1
239000000446 fuel Substances 0.000 description 1
229910052732 germanium Inorganic materials 0.000 description 1
GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
238000007602 hot air drying Methods 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
238000007654 immersion Methods 0.000 description 1
238000005470 impregnation Methods 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
239000000395 magnesium oxide Substances 0.000 description 1
229910044991 metal oxide Inorganic materials 0.000 description 1
150000004706 metal oxides Chemical class 0.000 description 1
239000002808 molecular sieve Substances 0.000 description 1
239000002245 particle Substances 0.000 description 1
230000000737 periodic effect Effects 0.000 description 1
239000011148 porous material Substances 0.000 description 1
239000010453 quartz Substances 0.000 description 1
239000012495 reaction gas Substances 0.000 description 1
239000011214 refractory ceramic Substances 0.000 description 1
239000012266 salt solution Substances 0.000 description 1
229910052706 scandium Inorganic materials 0.000 description 1
SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
229910052710 silicon Inorganic materials 0.000 description 1
239000010703 silicon Substances 0.000 description 1
URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
239000007787 solid Substances 0.000 description 1
230000003068 static effect Effects 0.000 description 1
239000000725 suspension Substances 0.000 description 1
229910052723 transition metal Inorganic materials 0.000 description 1
150000003624 transition metals Chemical class 0.000 description 1
238000011144 upstream manufacturing Methods 0.000 description 1
238000013022 venting Methods 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
210000002268 wool Anatomy 0.000 description 1
229910052727 yttrium Inorganic materials 0.000 description 1
VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
239000010457 zeolite Substances 0.000 description 1
229910052726 zirconium Inorganic materials 0.000 description 1

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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1028—Iridium
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2063—Lanthanum
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2065—Cerium
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (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)
Combustion & Propulsion (AREA)
Materials Engineering (AREA)
Organic Chemistry (AREA)
Catalysts (AREA)
Exhaust Gas Treatment By Means Of Catalyst (AREA)

CA274,184A 1976-03-18 1977-03-17 Catalyse Expired CA1100292A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB10953/76		1976-03-18
GB10953/76A GB1581628A (en)	1976-03-18	1976-03-18	Catalytic purification of automobile exhaust gases

Publications (1)

Publication Number	Publication Date
CA1100292A true CA1100292A (fr)	1981-05-05

Family

ID=9977353

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA274,184A Expired CA1100292A (fr)	1976-03-18	1977-03-17	Catalyse

Country Status (8)

Country	Link
JP (1)	JPS52116779A (fr)
BE (1)	BE852590A (fr)
CA (1)	CA1100292A (fr)
DE (1)	DE2712009A1 (fr)
FR (1)	FR2344323A1 (fr)
GB (1)	GB1581628A (fr)
SE (1)	SE7703019L (fr)
ZA (1)	ZA771544B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1993022046A1 (fr) *	1992-05-01	1993-11-11	Nalco Fuel Tech	Procede pour une reduction catalytique efficace d'oxydes d'azote
US5924280A (en) *	1997-04-04	1999-07-20	Clean Diesel Technologies, Inc.	Reducing NOx emissions from an engine while maximizing fuel economy
US5976475A (en) *	1997-04-02	1999-11-02	Clean Diesel Technologies, Inc.	Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
US6203770B1 (en)	1997-05-12	2001-03-20	Clean Diesel Technologies, Inc.	Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction
US6361754B1 (en)	1997-03-27	2002-03-26	Clean Diesel Technologies, Inc.	Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction
US6592833B1 (en) *	1999-10-18	2003-07-15	Delphi Technologies, Inc.	Method of NOx abatement in high temperature lean NOx catalyst systems
US7090810B2 (en)	2000-12-01	2006-08-15	Fuel Tech Inc.	Selective catalytic reduction of nox enabled by sidestream urea decomposition
US7682586B2 (en)	2006-08-22	2010-03-23	Babcock Power Environmental, Inc.	Thermal decomposition of urea in a side stream of combustion flue gas using a regenerative heat exchanger
US7829033B2 (en)	2003-07-03	2010-11-09	Fuel Tech, Inc.	Selective catalytic reduction of NOx enabled by sidestream urea decomposition
US8017100B2 (en)	2007-04-27	2011-09-13	Babcock Power Environmental Inc.	Conversion of urea to reactants for NOx reduction

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58131123A (ja) *	1982-02-01	1983-08-04	Toyota Motor Corp	内燃機関の排出ガス浄化用フイルタ
US4438082A (en) *	1982-09-30	1984-03-20	Engelhard Corporation	Platinum gold catalyst for removing NOx and NH3 from gas streams
ZA837689B (en) *	1982-10-18	1984-06-27	Universal Matthey Prod	Oxidation catalysts
US4657880A (en) *	1985-03-18	1987-04-14	Corning Glass Works	Preparation of high surface area agglomerates for catalyst support and preparation of monolithic support structures containing them
JPS63252908A (ja) *	1987-04-08	1988-10-20	Agency Of Ind Science & Technol	金超微粒子固定化酸化物、その製造法、酸化触媒、還元触媒、可燃性ガスセンサ素子、及び電極用触媒
JPS6483513A (en) *	1987-09-24	1989-03-29	Agency Ind Science Techn	Ultrafine gold particle immobilized alkaline earth metallic compound, production thereof, oxidation catalyst, reduction catalyst and combustible gas sensor element
EP0614692A1 (fr) *	1990-05-03	1994-09-14	Sakai Chemical Industry Co., Ltd.,	Catalyseurs et procédés pour la dénitration
DE4041088A1 (de) *	1990-12-21	1992-07-02	Afs Entwicklungs & Vertriebs G	Verfahren zur beseitigung von ozon aus gasgemischen
JP2801423B2 (ja) *	1991-03-08	1998-09-21	住友金属鉱山株式会社	窒素酸化物浄化触媒
KR950007916B1 (ko) *	1991-05-10	1995-07-21	스미도모킨조구고오상 가부시기가이샤	배기가스중의 질소산화물을 제거하는 방법
JP2618316B2 (ja) *	1992-08-05	1997-06-11	財団法人石油産業活性化センター	窒素酸化物接触還元用触媒
JP3430422B2 (ja) *	1992-12-14	2003-07-28	財団法人石油産業活性化センター	窒素酸化物接触還元用触媒
JP2631814B2 (ja) *	1994-04-20	1997-07-16	株式会社リケン	排ガス浄化材及び排ガス浄化方法
CA2278360A1 (fr) *	1997-01-22	1998-07-30	Bojidara Grigorova	Reduction de l'oxyde d'azote
BG62687B1 (bg) *	1997-05-15	2000-05-31	"Ламан-Консулт"Оод	Златен катализатор за окисление на въглероден оксид и въглеводороди, редуциране на азотни оксиди иразлагане на озон
JP2002052379A (ja) *	2000-08-09	2002-02-19	Babcock Hitachi Kk	アンモニア含有排水の浄化方法および装置
JP4969843B2 (ja)	2005-12-09	2012-07-04	新日鉄マテリアルズ株式会社	排ガス浄化用触媒及び排ガス浄化触媒部材

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7203790A (fr) *	1971-03-23	1972-09-26
US3784675A (en) *	1971-08-02	1974-01-08	Gulf Research Development Co	Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines
GB1414133A (en) *	1971-11-18	1975-11-19	Johnson Matthey Co Ltd	Catalysis
US4076792A (en) *	1972-04-12	1978-02-28	Corning Glass Works	Catalyst systems for the reduction of the oxides of nitrogen

1976
- 1976-03-18 GB GB10953/76A patent/GB1581628A/en not_active Expired
1977
- 1977-03-15 ZA ZA00771544A patent/ZA771544B/xx unknown
- 1977-03-17 CA CA274,184A patent/CA1100292A/fr not_active Expired
- 1977-03-17 BE BE6045935A patent/BE852590A/fr unknown
- 1977-03-17 FR FR7707960A patent/FR2344323A1/fr not_active Withdrawn
- 1977-03-17 SE SE7703019A patent/SE7703019L/ not_active Application Discontinuation
- 1977-03-18 JP JP3101477A patent/JPS52116779A/ja active Pending
- 1977-03-18 DE DE19772712009 patent/DE2712009A1/de not_active Withdrawn

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1993022046A1 (fr) *	1992-05-01	1993-11-11	Nalco Fuel Tech	Procede pour une reduction catalytique efficace d'oxydes d'azote
US5298230A (en) *	1992-05-01	1994-03-29	Nalco Fuel Tech	Process for the efficient catalytic reduction of nitrogen oxides
US6361754B1 (en)	1997-03-27	2002-03-26	Clean Diesel Technologies, Inc.	Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction
US5976475A (en) *	1997-04-02	1999-11-02	Clean Diesel Technologies, Inc.	Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
US5924280A (en) *	1997-04-04	1999-07-20	Clean Diesel Technologies, Inc.	Reducing NOx emissions from an engine while maximizing fuel economy
US6203770B1 (en)	1997-05-12	2001-03-20	Clean Diesel Technologies, Inc.	Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction
US6592833B1 (en) *	1999-10-18	2003-07-15	Delphi Technologies, Inc.	Method of NOx abatement in high temperature lean NOx catalyst systems
US7090810B2 (en)	2000-12-01	2006-08-15	Fuel Tech Inc.	Selective catalytic reduction of nox enabled by sidestream urea decomposition
US7829033B2 (en)	2003-07-03	2010-11-09	Fuel Tech, Inc.	Selective catalytic reduction of NOx enabled by sidestream urea decomposition
US7682586B2 (en)	2006-08-22	2010-03-23	Babcock Power Environmental, Inc.	Thermal decomposition of urea in a side stream of combustion flue gas using a regenerative heat exchanger
US8017100B2 (en)	2007-04-27	2011-09-13	Babcock Power Environmental Inc.	Conversion of urea to reactants for NOx reduction

Also Published As

Publication number	Publication date
SE7703019L (sv)	1977-09-19
GB1581628A (en)	1980-12-17
JPS52116779A (en)	1977-09-30
BE852590A (fr)	1977-09-19
DE2712009A1 (de)	1977-09-22
ZA771544B (en)	1978-01-25
FR2344323A1 (fr)	1977-10-14

Legal Events

Date	Code	Title	Description
1998-05-05	MKEX	Expiry

Publication	Publication Date	Title
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