RU94026723A - Catalyst for process of removal of nitric oxides from effluent gases and method of catalyst preparation - Google Patents
Catalyst for process of removal of nitric oxides from effluent gases and method of catalyst preparationInfo
- Publication number
- RU94026723A RU94026723A RU94026723/04A RU94026723A RU94026723A RU 94026723 A RU94026723 A RU 94026723A RU 94026723/04 A RU94026723/04 A RU 94026723/04A RU 94026723 A RU94026723 A RU 94026723A RU 94026723 A RU94026723 A RU 94026723A
- Authority
- RU
- Russia
- Prior art keywords
- catalyst
- preparation
- zeolite
- fezsm
- calcium oxide
- Prior art date
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- Catalysts (AREA)
Abstract
FIELD: catalysts and methods of their preparation for processes of effective removal of nitric oxides from effluent gases. SUBSTANCE: the offered catalyst is prepared on the base of iron-containing zeolite of FeZSM-5 type in decationated form of the following composition, mas.%: zeolite FeZSM-5 containing of 0.3-1.6 mas.% of ferric oxide 75-85; calcium oxide 0.1-2.6; silicon dioxide (binder) 17-22. The method of preparation of the offered catalyst includes introduction of iron cations in a definite amount before hydrothermal synthesis of zeolite powder and introduction of calcium oxide at the stage of paste preparation for pelletizing of catalyst with binding material. EFFECT: provision of devising an effective catalyst and method of its preparation for increased cleaning efficiency of effluent gases not only for dry, and wet gas mixtures, but also in the presence of sulfur dioxide acting as strong catalytic poison. 4 cl
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94026723A RU2072897C1 (en) | 1994-07-18 | 1994-07-18 | Catalyst for removing nitrogen oxides from exhaust gases and method of preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94026723A RU2072897C1 (en) | 1994-07-18 | 1994-07-18 | Catalyst for removing nitrogen oxides from exhaust gases and method of preparation thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2072897C1 RU2072897C1 (en) | 1997-02-10 |
RU94026723A true RU94026723A (en) | 1997-05-27 |
Family
ID=20158507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94026723A RU2072897C1 (en) | 1994-07-18 | 1994-07-18 | Catalyst for removing nitrogen oxides from exhaust gases and method of preparation thereof |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2072897C1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1095402C (en) * | 1998-09-23 | 2002-12-04 | 中国科学院大连化学物理研究所 | Catalyst for eliminating nitrogen oxide by means of microwave catalysis |
EP2908946B1 (en) * | 2012-10-19 | 2020-09-09 | BASF Corporation | 8-ring small pore molecular sieve as high temperature scr catalyst |
-
1994
- 1994-07-18 RU RU94026723A patent/RU2072897C1/en active
Also Published As
Publication number | Publication date |
---|---|
RU2072897C1 (en) | 1997-02-10 |
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