KR880000132A - 선택성 촉매환원 촉매 - Google Patents
선택성 촉매환원 촉매 Download PDFInfo
- Publication number
- KR880000132A KR880000132A KR870005964A KR870005964A KR880000132A KR 880000132 A KR880000132 A KR 880000132A KR 870005964 A KR870005964 A KR 870005964A KR 870005964 A KR870005964 A KR 870005964A KR 880000132 A KR880000132 A KR 880000132A
- Authority
- KR
- South Korea
- Prior art keywords
- catalytic reduction
- reduction catalyst
- selective catalytic
- gas
- catalyst
- Prior art date
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
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/053—Sulfates
-
- 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
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (2)
- NH3를 가스에 가하고 가스를 촉매상에 250℃ 내지 500℃의 온도에서 N0x와 NH3가 반응하도록 통과시켜 과잉의 산소 함유 가스로부터 NOx를 제거하는 방법에 있어서, 촉매로서, 지지체상의 세리아 및 알루미나의 혼합물로서 담지된 철 황산염으로 이루어지고, 세리아는 상기 혼합물의 2내지 60중량%로 함유되고 철 황산염은 상기 혼합물의 0.5 내지 50중량%로 함유하는 촉매를 사용하는 것을 특징으로 하는 NOx제거방법.
- 제 1 항에 있어서, 가스가 본질적으로 SOx가 제거된 것인 NOx제거 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/874,153 US4695438A (en) | 1986-06-13 | 1986-06-13 | Selective catalytic reduction catalysts |
US874153 | 1986-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR880000132A true KR880000132A (ko) | 1988-03-23 |
Family
ID=25363097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR870005964A KR880000132A (ko) | 1986-06-13 | 1987-06-12 | 선택성 촉매환원 촉매 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4695438A (ko) |
EP (1) | EP0249426A1 (ko) |
JP (1) | JPS62298431A (ko) |
KR (1) | KR880000132A (ko) |
AU (1) | AU585819B2 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5106602A (en) * | 1990-07-03 | 1992-04-21 | The Research Foundation Of State University Of New York | Low temperature catalytic reduction of nitrogen oxides |
US5214017A (en) * | 1991-11-27 | 1993-05-25 | Sun Company, Inc. (R&M) | Solid-acid alkylation catalyst compositions for alkylation processes |
US5212136A (en) * | 1991-11-27 | 1993-05-18 | Sun Company, Inc (R&M) | Solid-acid alkylation catalyst compositions for alkylation processes |
DE4235411A1 (de) * | 1992-10-21 | 1994-04-28 | Metallgesellschaft Ag | Verfahren zur katalytischen Reduktion von Stickstoffoxiden in Verbrennungsabgasen |
US5431993A (en) * | 1994-06-10 | 1995-07-11 | Westvaco Corporation | Reinforced sleeve for a paper machine |
US7070746B1 (en) | 1999-05-26 | 2006-07-04 | Solutia Inc. | Process for nitrous oxide purification |
US8115373B2 (en) | 2005-07-06 | 2012-02-14 | Rochester Institute Of Technology | Self-regenerating particulate trap systems for emissions and methods thereof |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857921A (en) * | 1972-09-27 | 1974-12-31 | Asahi Chemical Ind | Method for eliminating nitrogen oxides and catalyst composition for use in practicing said method |
US4107272A (en) * | 1973-05-21 | 1978-08-15 | Hitachi, Ltd. | Process for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalysts |
US3916805A (en) * | 1973-12-28 | 1975-11-04 | Exxon Research Engineering Co | Incineration of nitrogenous materials |
GB1448550A (en) * | 1974-01-31 | 1976-09-08 | Japan Gasoline | Process for the removal of nitrogen oxides from a gas stream |
JPS5520735B2 (ko) * | 1975-02-22 | 1980-06-04 | ||
US3987146A (en) * | 1975-08-07 | 1976-10-19 | The United States Of America As Represented By The United States Energy Research And Development Administration | Simultaneous removal of nitrogen oxides and sulfur oxides from combustion gases |
JPS5265763A (en) * | 1975-11-28 | 1977-05-31 | Mitsui Petrochem Ind Ltd | Process for removing nitrogen oxides in exhaust gas |
JPS52156168A (en) * | 1976-06-22 | 1977-12-26 | Mitsubishi Chem Ind Ltd | Waste gas treatment of nitric acid plant |
JPS544873A (en) * | 1977-06-14 | 1979-01-13 | Mitsubishi Chem Ind Ltd | Decomposing method for nitrogen oxides |
JPS5610334A (en) * | 1979-07-06 | 1981-02-02 | Toyota Motor Corp | Catalyst for cleaning up exhaust gas and manufacture of said catalyst |
DE3428232A1 (de) * | 1984-07-31 | 1986-02-06 | Süd-Chemie AG, 8000 München | Katalysator zur entfernung von stickoxiden aus abgasen |
DE3505648A1 (de) * | 1985-02-19 | 1986-08-21 | Didier Engineering Gmbh, 4300 Essen | Katalysator zur selektiven reduzierung von stickoxiden in abgasen sowie verfahren zur herstellung und verwendung eines solchen katalysators |
AU5517486A (en) * | 1986-02-19 | 1987-09-09 | Kraftanlagen A.G. | Process for the selective elimination of nitric oxides contained in exhaust gases |
JPH0675676B2 (ja) * | 1986-12-24 | 1994-09-28 | トヨタ自動車株式会社 | 排気ガス浄化用触媒 |
-
1986
- 1986-06-13 US US06/874,153 patent/US4695438A/en not_active Expired - Fee Related
-
1987
- 1987-06-08 EP EP87305044A patent/EP0249426A1/en not_active Withdrawn
- 1987-06-10 AU AU74070/87A patent/AU585819B2/en not_active Ceased
- 1987-06-12 KR KR870005964A patent/KR880000132A/ko not_active Application Discontinuation
- 1987-06-12 JP JP62146827A patent/JPS62298431A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AU585819B2 (en) | 1989-06-22 |
AU7407087A (en) | 1987-12-17 |
EP0249426A1 (en) | 1987-12-16 |
US4695438A (en) | 1987-09-22 |
JPS62298431A (ja) | 1987-12-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |