PL428501A1 - Method of regenerating SCR catalysts, fully or partially deactivated, and method of utilization of cleaning solutions used during regeneration - Google Patents
Method of regenerating SCR catalysts, fully or partially deactivated, and method of utilization of cleaning solutions used during regenerationInfo
- Publication number
- PL428501A1 PL428501A1 PL428501A PL42850119A PL428501A1 PL 428501 A1 PL428501 A1 PL 428501A1 PL 428501 A PL428501 A PL 428501A PL 42850119 A PL42850119 A PL 42850119A PL 428501 A1 PL428501 A1 PL 428501A1
- Authority
- PL
- Poland
- Prior art keywords
- solution
- cleaning solutions
- ch3cooh
- fully
- used during
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title abstract 5
- 238000004140 cleaning Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 230000001172 regenerating effect Effects 0.000 title abstract 2
- 230000008929 regeneration Effects 0.000 title abstract 2
- 238000011069 regeneration method Methods 0.000 title abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 abstract 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 abstract 1
- 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 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 abstract 1
- 235000019345 sodium thiosulphate Nutrition 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 229910001930 tungsten oxide Inorganic materials 0.000 abstract 1
Classifications
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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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
-
- 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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/50—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using organic liquids
-
- 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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/60—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids
-
- 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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/60—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids
- B01J38/62—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids organic
-
- 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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/64—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using alkaline material; using salts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
Przedmiotem wynalazku jest sposób regeneracji katalizatora SCR w pełni lub w części zdezaktywowanego, zwłaszcza mającego postać płyty z siatki ze stali nierdzewnej lub plastra miodu, zawierającego w składzie anatazową formę dwutlenku tytanu (TiO2), domieszkowanego tlenkami metali aktywnych: tlenkiem wanadu V2O5, tlenkiem wolframu WO3 lub tlenkiem molibdenu MoO3 i kalcynowanego, polegający na tym, że regenerowany katalizator SCR zanurza się, korzystnie całkowicie, w jednym lub osobno i w dowolnej kolejności w dwóch lub trzech lub czterech wieloskładnikowych roztworach oczyszczających o następujących składach: roztwór I zawierający: 0,1 - 99,7% wag. CH3COOH i/lub 01 - 99,7%wag. gliceryny i/lub 0,1 - 99,7% acetonu i/lub 0,1 - 99,7%wag. Na2S2O3; roztwór II zawierający: 0,1 - 99,7% wag.CH3COOH i/lub 0,1 - 99,7% wag.H2S04 i/lub 0,1 - 99,7%wag. H3PO4 i/lub -0,1 - 99,7%wag (COOH)2•2H2O; roztwór III zawierający: 0,1 - 99% wag. NaOH i 1 - 99,9%wag.H2O2; roztwór IV zawierający: 0,1 - 99,9% wag. CH3COOH i 0,1 - 99,9%wag.H2O, przy czym czas zanurzenia wynosi co najmniej 30 minut dla każdego z roztworów I - IV, po każdym etapie zanurzania w danym roztworze katalizator zanurza się w wodzie, korzystnie destylowanej, na okres co najmniej 5 minut, a po zakończeniu ostatniego etapu zanurzania katalizatora w wodzie suszy się go w temperaturze od 0 do 600°C w czasie co najmniej 5 minut, a zużyte w trakcie regeneracji roztwory oczyszczające korzystnie poddaje się utylizacji.The subject of the invention is a method of regenerating a fully or partially deactivated SCR catalyst, especially in the form of a plate made of stainless steel mesh or a honeycomb, containing the anatase form of titanium dioxide (TiO2), doped with oxides of active metals: vanadium oxide V2O5, tungsten oxide WO3 or MoO3 and calcined molybdenum oxide, in which the regenerated SCR catalyst is immersed, preferably completely, in one or separately and in any order in two or three or four multi-component cleaning solutions with the following compositions: solution I containing: 0.1 - 99 , 7 wt.% % CH3COOH and / or 01 - 99.7 wt.%. glycerin and / or 0.1 - 99.7% acetone and / or 0.1 - 99.7 wt.%. Na2S2O3; solution II comprising: 0.1 - 99.7 wt.% CH3COOH and / or 0.1 - 99.7 wt.% H2SO4 and / or 0.1 - 99.7 wt. H3PO4 and / or -0.1 - 99.7 wt.% (COOH) 2 • 2H2O; solution III containing: 0.1 - 99 wt. NaOH and 1-99.9 wt% H2O2; solution IV containing: 0.1 - 99.9 wt. CH3COOH and 0.1 - 99.9 wt.% H2O, the immersion time being at least 30 minutes for each of the solutions I-IV, after each step of immersing in a given solution, the catalyst is immersed in water, preferably distilled, for a period of after the last step of immersing the catalyst in water is completed, it is dried at a temperature of 0 to 600 ° C for at least 5 minutes, and the cleaning solutions used during regeneration are preferably disposed of.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL428501A PL237032B1 (en) | 2019-01-07 | 2019-01-07 | Method of regenerating SCR catalysts, fully or partially deactivated, and method of utilization of cleaning solutions used during regeneration |
| CZ2019523A CZ309106B6 (en) | 2019-01-07 | 2019-08-09 | Method of regenerating completely or partially deactivated SCR catalysts |
| SK500412019A SK288935B6 (en) | 2019-01-07 | 2019-08-09 | Method of regenerating SCR catalysts, fully or partially deactivated, and method of utilization of cleaning solutions used during regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL428501A PL237032B1 (en) | 2019-01-07 | 2019-01-07 | Method of regenerating SCR catalysts, fully or partially deactivated, and method of utilization of cleaning solutions used during regeneration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL428501A1 true PL428501A1 (en) | 2020-07-13 |
| PL237032B1 PL237032B1 (en) | 2021-03-08 |
Family
ID=71512355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL428501A PL237032B1 (en) | 2019-01-07 | 2019-01-07 | Method of regenerating SCR catalysts, fully or partially deactivated, and method of utilization of cleaning solutions used during regeneration |
Country Status (3)
| Country | Link |
|---|---|
| CZ (1) | CZ309106B6 (en) |
| PL (1) | PL237032B1 (en) |
| SK (1) | SK288935B6 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3824464A1 (en) * | 1988-07-19 | 1990-01-25 | Basf Ag | METHOD FOR REGENERATING CATALYSTS |
| DE19829916B4 (en) * | 1998-07-06 | 2005-03-24 | Envica Gmbh | Process for the regeneration of catalysts and regenerated catalysts |
| WO2000012211A1 (en) * | 1998-08-26 | 2000-03-09 | Integral Umwelt- Und Anlagentechnik Gesellschaft Mbh | METHOD FOR REGENERATING USED DeNOx OR DeDIOXIN CATALYTIC CONVERTERS |
| CN107096578B (en) * | 2017-05-19 | 2020-05-19 | 华北电力大学（保定） | A kind of regeneration method of arsenic poisoning SCR denitration catalyst |
-
2019
- 2019-01-07 PL PL428501A patent/PL237032B1/en unknown
- 2019-08-09 SK SK500412019A patent/SK288935B6/en unknown
- 2019-08-09 CZ CZ2019523A patent/CZ309106B6/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SK288935B6 (en) | 2022-02-23 |
| CZ309106B6 (en) | 2022-02-02 |
| PL237032B1 (en) | 2021-03-08 |
| SK500412019A3 (en) | 2020-09-03 |
| CZ2019523A3 (en) | 2020-07-15 |
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