KR950007916B1 - 배기가스중의 질소산화물을 제거하는 방법 - Google Patents
배기가스중의 질소산화물을 제거하는 방법 Download PDFInfo
- Publication number
- KR950007916B1 KR950007916B1 KR1019920007592A KR920007592A KR950007916B1 KR 950007916 B1 KR950007916 B1 KR 950007916B1 KR 1019920007592 A KR1019920007592 A KR 1019920007592A KR 920007592 A KR920007592 A KR 920007592A KR 950007916 B1 KR950007916 B1 KR 950007916B1
- Authority
- KR
- South Korea
- Prior art keywords
- catalyst
- exhaust gas
- nitrogen oxides
- hours
- platinum
- 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 - Fee Related
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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D53/38—Removing components of undefined structure
-
- 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
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/208—Hydrocarbons
-
- 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
- B01D2255/1021—Platinum
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims (4)
- 탄화수소가 존재하는 산화분위기중에서 질소산화물을 함유한 배기가스를. 백금을 함유한 촉매와 접촉시키게 한, 배기가스중의 질소산화물을 제거하는 방법.
- 제1항에 있어서, 탄화수소가 휘발유, 등유 및 경유중의 어느것으로된 배기가스중의 질소산화물을 제거 하는 방법.
- 제1항에 있어서, 탄화수소가 휘발유, 등유 및 경유중의 적어도 2개의 조합으로된 배기가스중의 질소산화물을 제거하는 방법.
- 제1항, 2항 또는 3항의 어느것에 있어서, 당해 배기가스가 유황산화물을 다시 함유하는 배기가스중의 질소산화물을 제거하는 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP91-105668 | 1991-05-10 | ||
JP3105668A JP2737441B2 (ja) | 1991-05-10 | 1991-05-10 | 排ガス中の窒素酸化物除去方法及び触媒 |
JP92-8482 | 1992-01-21 | ||
JP4008482A JPH05192539A (ja) | 1992-01-21 | 1992-01-21 | 窒素酸化物の浄化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920021200A KR920021200A (ko) | 1992-12-18 |
KR950007916B1 true KR950007916B1 (ko) | 1995-07-21 |
Family
ID=26342999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920007592A Expired - Fee Related KR950007916B1 (ko) | 1991-05-10 | 1992-05-04 | 배기가스중의 질소산화물을 제거하는 방법 |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0512506A1 (ko) |
KR (1) | KR950007916B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2002257C2 (nl) * | 2008-11-26 | 2010-05-27 | Theodoor Petrus Knook | Werkwijze en inrichting voor het verwijderen van etheen uit een rookgasmengsel. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1581628A (en) * | 1976-03-18 | 1980-12-17 | Johnson Matthey Co Ltd | Catalytic purification of automobile exhaust gases |
DE3428232A1 (de) * | 1984-07-31 | 1986-02-06 | Süd-Chemie AG, 8000 München | Katalysator zur entfernung von stickoxiden aus abgasen |
EP0614692A1 (en) * | 1990-05-03 | 1994-09-14 | Sakai Chemical Industry Co., Ltd., | Catalysts and methods for denitrization |
-
1992
- 1992-05-04 KR KR1019920007592A patent/KR950007916B1/ko not_active Expired - Fee Related
- 1992-05-06 EP EP92107640A patent/EP0512506A1/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0512506A1 (en) | 1992-11-11 |
KR920021200A (ko) | 1992-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5540421B2 (ja) | 排ガス中の窒素酸化物除去方法 | |
JP5619091B2 (ja) | 自動車排ガス処理用高リン被毒耐性触媒 | |
BRPI0713882A2 (pt) | catalisador de três vias | |
RU2398632C2 (ru) | Способ реактивации термически состарившихся каталитических нейтрализаторов-накопителей оксидов азота | |
BR112020026548A2 (pt) | Composição catalisadora, artigo catalisador para o tratamento de gás de escape, sistema de tratamento de emissão para tratar um fluxo de um gás de escape de combustão, e, método de tratamento de um gás de escape de um motor de combustão interna | |
US6491886B1 (en) | Method for treating gases to reduce nitrogen oxide emissions | |
JP2645614B2 (ja) | 窒素酸化物を含む排ガスの浄化方法 | |
KR950007916B1 (ko) | 배기가스중의 질소산화물을 제거하는 방법 | |
JPH04334526A (ja) | 排ガス中の窒素酸化物除去方法及び触媒 | |
JPH04358525A (ja) | 窒素酸化物の還元除去方法 | |
JP3398159B2 (ja) | 窒素酸化物除去方法 | |
JPH05137963A (ja) | 窒素酸化物の除去方法 | |
JP3316565B2 (ja) | 窒素酸化物の接触還元除去方法 | |
JP2848581B2 (ja) | 窒素酸化物の除去方法 | |
JP3316564B2 (ja) | 窒素酸化物含有排ガスの浄化方法 | |
RU2789587C2 (ru) | Улучшенные катализаторы twc, содержащие высокоэффективную подложку с допирующей добавкой | |
JP2843977B2 (ja) | 窒素酸化物浄化用触媒 | |
JP3316566B2 (ja) | 窒素酸化物含有排ガスの還元浄化方法 | |
JP3423703B2 (ja) | 窒素酸化物除去用触媒 | |
JP3268503B2 (ja) | 窒素酸化物除去触媒 | |
JP3315039B2 (ja) | 窒素酸化物含有排ガスの還元浄化方法 | |
JP4588134B2 (ja) | 窒素酸化物浄化用触媒 | |
JPH05192539A (ja) | 窒素酸化物の浄化方法 | |
JP2847021B2 (ja) | 窒素酸化物の還元除去方法 | |
JP2007007607A (ja) | エンジン排出ガスの浄化方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
St.27 status event code: A-0-1-A10-A12-nap-PA0109 |
|
PA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-PA0201 |
|
R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
PG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-PG1501 |
|
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
St.27 status event code: A-2-2-Q10-Q13-nap-PG1605 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
St.27 status event code: A-1-2-D10-D22-exm-PE0701 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
St.27 status event code: A-2-4-F10-F11-exm-PR0701 |
|
PR1002 | Payment of registration fee |
St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 5 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 6 |
|
FPAY | Annual fee payment |
Payment date: 20010711 Year of fee payment: 7 |
|
PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 7 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |
St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 20020722 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE |
|
PC1903 | Unpaid annual fee |
St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20020722 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |