JPS56141837A - Catalyst for removing nitrogen oxides and its production - Google Patents
Catalyst for removing nitrogen oxides and its productionInfo
- Publication number
- JPS56141837A JPS56141837A JP4346580A JP4346580A JPS56141837A JP S56141837 A JPS56141837 A JP S56141837A JP 4346580 A JP4346580 A JP 4346580A JP 4346580 A JP4346580 A JP 4346580A JP S56141837 A JPS56141837 A JP S56141837A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- oxide
- low
- titanium oxide
- nitrogen oxides
- 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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract 6
- 239000003054 catalyst Substances 0.000 title abstract 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 3
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 abstract 2
- 229910001930 tungsten oxide Inorganic materials 0.000 abstract 2
- 229910001935 vanadium oxide Inorganic materials 0.000 abstract 2
- 238000002441 X-ray diffraction Methods 0.000 abstract 1
- 230000002411 adverse Effects 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- -1 vanadyl ions Chemical class 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To provide a catalyst of high-temp. high-activity, and low SO2 conversion rate and low adverse influence of alkali metals upon these by consisting the same of titanium oxide, vanadium oxide, and tungsten oxide, and changing the structure around V in order to intensify the bonding strength of O and V contributing to catalytic reaction.
CONSTITUTION: The catalyst which consists of titanium oxide, vanadium oxide, and tungsten oxide, of which the g factor (g1-g11) of vanadyl ions is ≥0.055 and which catalytically reduces and removes the nitrogen oxides in waste gases of various boilers in the presence of NH3. This catalyst is obtained by undergoing the process of carrying V compound and W compound on specific titanium oxide which is wide in peak half width (β101) of 3.52Å crystalface space in X-ray diffraction and is low ≥0.5 deg. rate of crystallization.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55043465A JPS6013750B2 (en) | 1980-04-04 | 1980-04-04 | Catalyst for removing nitrogen oxides and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55043465A JPS6013750B2 (en) | 1980-04-04 | 1980-04-04 | Catalyst for removing nitrogen oxides and its manufacturing method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62213146A Division JPS6388047A (en) | 1987-08-28 | 1987-08-28 | Preparation of catalyst for removing nitrogen oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56141837A true JPS56141837A (en) | 1981-11-05 |
| JPS6013750B2 JPS6013750B2 (en) | 1985-04-09 |
Family
ID=12664456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55043465A Expired JPS6013750B2 (en) | 1980-04-04 | 1980-04-04 | Catalyst for removing nitrogen oxides and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013750B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792439A (en) * | 1985-08-13 | 1988-12-20 | Sud-Chemie Aktiengesellschaft | Process for decreasing the content of nitrogen oxides in flue gases |
| JPH01111442A (en) * | 1987-10-26 | 1989-04-28 | Babcock Hitachi Kk | Nitrogen oxides removing catalyst |
| JP2013202600A (en) * | 2012-03-29 | 2013-10-07 | Osaka Gas Co Ltd | Exhaust gas cleaning method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0249457A (en) * | 1988-08-10 | 1990-02-19 | Mitsubishi Electric Corp | Semiconductor device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089291A (en) * | 1973-12-12 | 1975-07-17 | ||
| JPS50128681A (en) * | 1974-03-29 | 1975-10-09 | ||
| JPS5223588A (en) * | 1975-08-19 | 1977-02-22 | Sakai Chem Ind Co Ltd | Process for producing titanium dioxide carrier |
| JPS5235342A (en) * | 1975-09-11 | 1977-03-17 | Posnansky Mario | Solar energy condensing apparatus |
| JPS5235760A (en) * | 1975-09-17 | 1977-03-18 | Mitsui Petrochem Ind Ltd | Method of removing nox in exhaust gas |
| JPS5262190A (en) * | 1975-11-17 | 1977-05-23 | Sakai Chemical Industry Co | Manufacture of catalysy carriers |
| JPS52122293A (en) * | 1976-04-08 | 1977-10-14 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for purifying nox |
| JPS5334195A (en) * | 1976-09-10 | 1978-03-30 | Toshiba Corp | Rotary electrospark machining device |
| JPS53110986A (en) * | 1977-03-09 | 1978-09-28 | Sakai Chem Ind Co Ltd | Production of carrier |
| JPS5431091A (en) * | 1977-08-12 | 1979-03-07 | Sakai Chem Ind Co Ltd | Molding for fluidized bed or suspended bed catalyst |
| JPS5483696A (en) * | 1977-12-16 | 1979-07-03 | Sakai Chem Ind Co Ltd | Production of catalyst and denitration method |
-
1980
- 1980-04-04 JP JP55043465A patent/JPS6013750B2/en not_active Expired
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089291A (en) * | 1973-12-12 | 1975-07-17 | ||
| JPS50128681A (en) * | 1974-03-29 | 1975-10-09 | ||
| JPS5223588A (en) * | 1975-08-19 | 1977-02-22 | Sakai Chem Ind Co Ltd | Process for producing titanium dioxide carrier |
| JPS5235342A (en) * | 1975-09-11 | 1977-03-17 | Posnansky Mario | Solar energy condensing apparatus |
| JPS5235760A (en) * | 1975-09-17 | 1977-03-18 | Mitsui Petrochem Ind Ltd | Method of removing nox in exhaust gas |
| JPS5262190A (en) * | 1975-11-17 | 1977-05-23 | Sakai Chemical Industry Co | Manufacture of catalysy carriers |
| JPS52122293A (en) * | 1976-04-08 | 1977-10-14 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for purifying nox |
| JPS5334195A (en) * | 1976-09-10 | 1978-03-30 | Toshiba Corp | Rotary electrospark machining device |
| JPS53110986A (en) * | 1977-03-09 | 1978-09-28 | Sakai Chem Ind Co Ltd | Production of carrier |
| JPS5431091A (en) * | 1977-08-12 | 1979-03-07 | Sakai Chem Ind Co Ltd | Molding for fluidized bed or suspended bed catalyst |
| JPS5483696A (en) * | 1977-12-16 | 1979-07-03 | Sakai Chem Ind Co Ltd | Production of catalyst and denitration method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792439A (en) * | 1985-08-13 | 1988-12-20 | Sud-Chemie Aktiengesellschaft | Process for decreasing the content of nitrogen oxides in flue gases |
| JPH01111442A (en) * | 1987-10-26 | 1989-04-28 | Babcock Hitachi Kk | Nitrogen oxides removing catalyst |
| JP2013202600A (en) * | 2012-03-29 | 2013-10-07 | Osaka Gas Co Ltd | Exhaust gas cleaning method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6013750B2 (en) | 1985-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Long et al. | Catalytic performance of Fe–ZSM-5 catalysts for selective catalytic reduction of nitric oxide by ammonia | |
| JPS56168835A (en) | Denitrating catalyst and denitrating method | |
| EP0811597A3 (en) | Process for production of acrylic acid | |
| DK0762925T3 (en) | Catalyst for nitric oxide reduction in a flow medium and process for its preparation | |
| US4141959A (en) | Process for removing nitrogen oxides from combustion flue gas | |
| JPS5915022B2 (en) | Catalyst for removing nitrogen oxides from exhaust gas | |
| US4314913A (en) | Catalyst for removing NOx from gas streams | |
| JPS56141837A (en) | Catalyst for removing nitrogen oxides and its production | |
| Sodesawa | Dynamic change in surface area of Cu in dehydrogenation of methanol over Cu− SiO2 catalyst prepared by ion exchange method | |
| ZA943214B (en) | Process for reducing the nitrous oxide content in gaseious effluents. | |
| EP0520217B1 (en) | A catalyst for reducing nitrogen oxides in combustion gases and a method for its production | |
| GB2162830A (en) | Ammonia reduction-denitration process | |
| JPH0417083B2 (en) | ||
| JPH0468975B2 (en) | ||
| DE3664872D1 (en) | A process for preparing a catalyst for the selective reduction of nitrogen oxides from exhaust gases | |
| JPS55114335A (en) | Method for treatment of waste gas | |
| JPS57127426A (en) | Method for removal of nitrogen oxide | |
| JPS5663944A (en) | Reduction of aromatic nitrile | |
| JPS57150437A (en) | Production of catalyst for purification of nitrogen oxide | |
| EP0421468A1 (en) | Catalytic oxidation of ammonia | |
| GB1472219A (en) | Process for the selective removal of nitrogen oxides from waste gases containing sulphur oxides | |
| JPS5551438A (en) | Regeneration method of sulfur oxide-removing active carbon catalyst | |
| JPH10309437A (en) | Ammonia decomposition treatment apparatus | |
| JPS57165040A (en) | Preparation of catalyst for preparing methacrylic acid | |
| JPS54115672A (en) | Treating method for exhaust gas containing nitrogen oxides |