CN112156808A - 一种低氨逃逸率分子筛scr催化剂的制备方法及应用 - Google Patents
一种低氨逃逸率分子筛scr催化剂的制备方法及应用 Download PDFInfo
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- CN112156808A CN112156808A CN202011065436.0A CN202011065436A CN112156808A CN 112156808 A CN112156808 A CN 112156808A CN 202011065436 A CN202011065436 A CN 202011065436A CN 112156808 A CN112156808 A CN 112156808A
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- molecular sieve
- scr catalyst
- low ammonia
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- 239000003054 catalyst Substances 0.000 title claims abstract description 66
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 238000009835 boiling Methods 0.000 claims abstract description 22
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/82—Phosphates
- B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
- B01J29/85—Silicoaluminophosphates [SAPO compounds]
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- 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
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- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/783—CHA-type, e.g. Chabazite, LZ-218
-
- 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
- B01J37/30—Ion-exchange
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
- B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Combustion & Propulsion (AREA)
- Crystallography & Structural Chemistry (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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
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Cited By (2)
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CN113546678A (zh) * | 2021-06-17 | 2021-10-26 | 中自环保科技股份有限公司 | 一种分子筛scr催化剂及制备方法 |
CN114505079B (zh) * | 2022-04-20 | 2022-06-24 | 山东万达环保科技有限公司 | 一种低温锰基scr脱硝催化剂的制备方法及其在烟气脱硝中的应用 |
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CN102658194A (zh) * | 2012-04-06 | 2012-09-12 | 北京化工大学 | 粉煤灰制备y型分子筛催化剂用于燃煤电厂脱硝的方法 |
CN108554443A (zh) * | 2018-05-31 | 2018-09-21 | 武汉理工大学 | Ag/Cu-ZSM-5催化剂的制备方法 |
US20180297014A1 (en) * | 2015-11-17 | 2018-10-18 | Basf Corporation | Exhaust gas treatment catalyst |
CN109126862A (zh) * | 2018-08-20 | 2019-01-04 | 中国汽车技术研究中心有限公司 | 一种加快合成cha结构分子筛的方法及其催化剂在nh3-scr反应中的应用 |
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CN102658194A (zh) * | 2012-04-06 | 2012-09-12 | 北京化工大学 | 粉煤灰制备y型分子筛催化剂用于燃煤电厂脱硝的方法 |
US20180297014A1 (en) * | 2015-11-17 | 2018-10-18 | Basf Corporation | Exhaust gas treatment catalyst |
CN108554443A (zh) * | 2018-05-31 | 2018-09-21 | 武汉理工大学 | Ag/Cu-ZSM-5催化剂的制备方法 |
CN109126862A (zh) * | 2018-08-20 | 2019-01-04 | 中国汽车技术研究中心有限公司 | 一种加快合成cha结构分子筛的方法及其催化剂在nh3-scr反应中的应用 |
Cited By (3)
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CN113546678A (zh) * | 2021-06-17 | 2021-10-26 | 中自环保科技股份有限公司 | 一种分子筛scr催化剂及制备方法 |
WO2022262543A1 (zh) * | 2021-06-17 | 2022-12-22 | 中自环保科技股份有限公司 | 一种分子筛scr催化剂及制备方法 |
CN114505079B (zh) * | 2022-04-20 | 2022-06-24 | 山东万达环保科技有限公司 | 一种低温锰基scr脱硝催化剂的制备方法及其在烟气脱硝中的应用 |
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