JPS56155647A - Highly active catalyst for denitration of exhaust gas - Google Patents
Highly active catalyst for denitration of exhaust gasInfo
- Publication number
- JPS56155647A JPS56155647A JP3357481A JP3357481A JPS56155647A JP S56155647 A JPS56155647 A JP S56155647A JP 3357481 A JP3357481 A JP 3357481A JP 3357481 A JP3357481 A JP 3357481A JP S56155647 A JPS56155647 A JP S56155647A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- silica
- exhaust gas
- oxide
- activity
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title abstract 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 10
- 239000000377 silicon dioxide Substances 0.000 abstract 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 4
- 230000000694 effects Effects 0.000 abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000005749 Copper compound Substances 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000010531 catalytic reduction reaction Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 150000001880 copper compounds Chemical class 0.000 abstract 1
- 229910000365 copper sulfate Inorganic materials 0.000 abstract 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To offer a catalyst which can maintain its high activity to sulfur oxide- containing exhaust gas for a long period, by further supporting wolfram oxide on a copper sulfate-carrying silica/alumina catalyst to be used in the catalytic reduction of nitrogen oxides by ammonia.
CONSTITUTION: The catalyst comprises copper sulfate and wolfram oxide supported on an active silica/alumina carrier containing 40W90wt% silica. If the silica content is less than the lower limit, the deterioration of the catalyst is conspicuous in the disposal process of sulfur oxide-containing exhaust gas. If the silica content exceeds the upper limit, the activity, especially the initial activity, of the catalyst is insufficient. The wolfram oxide has an effect of further enhancing the catalytic activity of the copper compound. The amount of wolfram oxide is 0.12W0.22g/1g-carrier.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56033574A JPS5849296B2 (en) | 1981-03-09 | 1981-03-09 | Highly active exhaust gas denitrification catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56033574A JPS5849296B2 (en) | 1981-03-09 | 1981-03-09 | Highly active exhaust gas denitrification catalyst |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2830276A Division JPS52111482A (en) | 1976-03-15 | 1976-03-15 | Flue gas denitration catalyst with high activity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56155647A true JPS56155647A (en) | 1981-12-01 |
| JPS5849296B2 JPS5849296B2 (en) | 1983-11-02 |
Family
ID=12390299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56033574A Expired JPS5849296B2 (en) | 1981-03-09 | 1981-03-09 | Highly active exhaust gas denitrification catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849296B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128210A (en) * | 2014-07-23 | 2014-11-05 | 浙江海亮环境材料有限公司 | Cellular SCR denitration catalyst unit hardening liquid and use method thereof |
-
1981
- 1981-03-09 JP JP56033574A patent/JPS5849296B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128210A (en) * | 2014-07-23 | 2014-11-05 | 浙江海亮环境材料有限公司 | Cellular SCR denitration catalyst unit hardening liquid and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5849296B2 (en) | 1983-11-02 |
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