CN107952438A - A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof - Google Patents
A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof Download PDFInfo
- Publication number
- CN107952438A CN107952438A CN201711268778.0A CN201711268778A CN107952438A CN 107952438 A CN107952438 A CN 107952438A CN 201711268778 A CN201711268778 A CN 201711268778A CN 107952438 A CN107952438 A CN 107952438A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- mixed carrier
- gas desulfurization
- ferroso
- titanium dioxide
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0234—Impregnation and coating simultaneously
-
- 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
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof, catalyst is using aluminium oxide and Alveolate activated carbon as mixed carrier, load active component ferroso-ferric oxide and titanium dioxide on mixed carrier, and the composition of catalyst is：The mass ratio of 65 80wt.% of mixed carrier, 20 35wt.% of ferroso-ferric oxide and titanium dioxide, ferroso-ferric oxide and titanium dioxide is 5：4‑2.The catalyst can overcome clogging caused by dust, and also higher is desulphurizing activated.
Description
Technical field
The present invention relates to desulphurization denitration catalyst technical field, more particularly to exhuast gas desulfurization mixed carrier catalyst and system
Standby technique.
Background technology
In the prior art, flue gases purification is divided into independent desulphurization denitration and simultaneous SO_2 and NO removal, due to desulfurization at the same time
Denitration technology saves manpower, financial resources and material resources, enjoys researcher to pay attention to.The technology for being presently used for simultaneous SO_2 and NO removal mainly has
Electronic beam method, activated carbon method, CuO/ γ-Al2O3Method etc..The above method is made there are many technical problems, such as graininess shape
It is big into bed resistance, it is difficult to overcome dust to block.In consideration of it, a kind of necessary bed resistance of exploitation is small, can overcome flue gas
Dust influences, suitable for desulphurization denitration catalyst while industrial applications.
The content of the invention
In order to solve the above technical problem, the present invention provides the object of the present invention is to provide a kind of bed resistance is small, it is suitable for
The cellular simultaneous SO_2 and NO removal catalyst of industrial applications and preparation and application.
The present invention provides a kind of exhuast gas desulfurization mixed carrier catalyst, and catalyst is mixed using aluminium oxide and Alveolate activated carbon
Carrier, load active component ferroso-ferric oxide and titanium dioxide on mixed carrier are closed, the composition of catalyst is：Mixed carrier
The mass ratio of 65-80wt.%, ferroso-ferric oxide and titanium dioxide 20-35wt.%, ferroso-ferric oxide and titanium dioxide is 5：4-
2。
The composition of preferred catalyst is：Mixed carrier：80wt.%, ferroso-ferric oxide and titanium dioxide：20wt.%, four oxygen
The mass ratio for changing three-iron and titanium dioxide is 5：3.
It is preferred that the surface of the mixed carrier is by processing.
It is preferred that the mass ratio of aluminium oxide and Alveolate activated carbon is 1 in the mixed carrier:1.
It is preferred that catalyst is loaded in fluidized-bed reactor, reaction temperature is controlled at 300-320 DEG C, is passed through the cigarette of normal pressure
Gas, air speed 5500-6000h-1。
The present invention also provides a kind of method for preparing above-mentioned catalyst, is specially：By Alveolate activated carbon at 700 DEG C with water
Steam activation 80 minutes, proportionally adds porous oxidation alumina particles, and it is described to obtain just grade carrier, dipping process after mixing
Dipping solution is by aluminum nitrate：Triazolone：Ethylenediamine：Urea is 7-9：3:5:5 are dissolved in what is formed in deionized water, at the impregnation
Reason is by the way of rubber roller pressure is drenched, and carries out at least roll-in three times, glue is permeated and is spread by roll-in in first grade carrier,
It is detected in the roll-in immersing glue process, terminates when reaching impregnation target i.e. gum dipping process.The impregnation target is：Control
The primary vehicle weight increase by 10% of system；Then ferroso-ferric oxide and titanium dioxide are loaded with conventional impregnation method again, obtains exhaust gas and take off
Sulphur mixed carrier catalyst.
It is preferred that the dipping solution is by aluminum nitrate：Triazolone：Ethylenediamine：Urea is 8：3:5:5 are dissolved in deionized water
Formed.
Beneficial effects of the present invention are：Specific mixture is carrier, and by specific leaching with synergy
Glue processing so that catalyst bed layer resistance is small, suitable for industrial applications.The catalyst blocks existing caused by can overcoming dust
As.The catalyst have higher denitration activity and well it is desulphurizing activated.
Embodiment
The present invention is further described in detail with reference to specific embodiment.
Embodiment 1
A kind of method for preparing exhuast gas desulfurization mixed carrier catalyst, Alveolate activated carbon is lived at 700 DEG C with vapor
Change 80 minutes, proportionally add porous oxidation alumina particles, obtain just grade carrier, dipping process after mixing, the dipping solution
For by aluminum nitrate：Triazolone：Ethylenediamine：Urea is 8：3:5:5 are dissolved in what is formed in deionized water, and the dipping process is to use
The mode of rubber roller pressure is drenched, at least roll-in three times is carried out, glue is permeated and is spread by roll-in in first grade carrier, in the roller
It is detected in pressure immersing glue process, terminates when reaching impregnation target i.e. gum dipping process.The impregnation target is：Control is primary to be carried
Body weight increase by 10%；Then ferroso-ferric oxide and titanium dioxide are loaded with conventional impregnation method again, obtains exhuast gas desulfurization mixing and carry
Body catalyst.The catalyst of 21 × 30mm of Φ is taken to be placed in reaction tube (Φ 21mm), controlling reaction temperature is in 400 DEG C, air speed
2300h-1, flue gas composition is 1500ppm SO2, 400ppm NO, 5.4%O2, 2.5%H2O, balances Ar, is made with 400ppm NH3
Reducing agent, stable state NO removal efficiencies are 94%, SO under this operating condition2Sulfur capacity of the conversion ratio more than 80% is 6.5%.
Embodiment above is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection domain it
It is interior.
Claims (7)
1. a kind of exhuast gas desulfurization mixed carrier catalyst, it is characterised in that catalyst is mixed using aluminium oxide and Alveolate activated carbon
Carrier, load active component ferroso-ferric oxide and titanium dioxide on mixed carrier are closed, the composition of catalyst is：
Mixed carrier 65-80wt.%,
Ferroso-ferric oxide and titanium dioxide 20-35wt.%,
The mass ratio of ferroso-ferric oxide and titanium dioxide is 5：4-2.
2. exhuast gas desulfurization mixed carrier catalyst as claimed in claim 1, it is characterised in that the composition of catalyst is：Mixing
Carrier：80wt.%, ferroso-ferric oxide and titanium dioxide：The mass ratio of 20wt.%, ferroso-ferric oxide and titanium dioxide is 5：3.
3. exhuast gas desulfurization mixed carrier catalyst as claimed in claim 1, it is characterised in that the surface of the mixed carrier
By processing.
4. exhuast gas desulfurization mixed carrier catalyst as claimed in claim 1, it is characterised in that aoxidized in the mixed carrier
The mass ratio of aluminium and Alveolate activated carbon is 1:1.
5. exhuast gas desulfurization mixed carrier catalyst as claimed in claim 4, it is characterised in that catalyst is anti-loaded on fluid bed
Answer in device, reaction temperature is controlled at 300-320 DEG C, is passed through the flue gas of normal pressure, air speed 5500-6000h-1。
6. such as the preparation method of claim 1-5 any one of them exhuast gas desulfurization mixed carrier catalyst, it is characterised in that bee
Nest shaped activated carbon with steam activation 80 minutes, proportionally adds porous oxidation alumina particles, obtains just grade carrier at 700 DEG C,
Dipping process after mixing, the dipping solution are by aluminum nitrate：Triazolone：Ethylenediamine：Urea is 7-9：3:5:5 are dissolved in deionization
Formed in water, the dipping process is by the way of rubber roller pressure is drenched, and carries out at least roll-in three times, makes glue in first grade carrier
Middle infiltration and spread, be detected in the roll-in immersing glue process, when reaching impregnation target i.e. gum dipping process knot by roll-in
Beam.The impregnation target is：The primary vehicle weight increase by 10% of control；Then ferroso-ferric oxide is loaded with conventional impregnation method again
And titanium dioxide, obtain exhuast gas desulfurization mixed carrier catalyst.
7. method as claimed in claim 6, it is characterised in that the dipping solution is by aluminum nitrate：Triazolone：Ethylenediamine：
Urea is 8：3:5:5 are dissolved in what is formed in deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268778.0A CN107952438A (en) | 2017-12-05 | 2017-12-05 | A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268778.0A CN107952438A (en) | 2017-12-05 | 2017-12-05 | A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107952438A true CN107952438A (en) | 2018-04-24 |
Family
ID=61963294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711268778.0A Withdrawn CN107952438A (en) | 2017-12-05 | 2017-12-05 | A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107952438A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457920A (en) * | 2003-04-14 | 2003-11-26 | 中国科学院山西煤炭化学研究所 | Honeycomb ceramic catalyst for simultaneously desulfurizing and denitrifying fume and its preparation and use |
| CN1792455A (en) * | 2005-12-27 | 2006-06-28 | 中国科学院山西煤炭化学研究所 | Cellular activated-carbon catalyst used for denitrification of flue-gas, prepn. method and application thereof |
-
2017
- 2017-12-05 CN CN201711268778.0A patent/CN107952438A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457920A (en) * | 2003-04-14 | 2003-11-26 | 中国科学院山西煤炭化学研究所 | Honeycomb ceramic catalyst for simultaneously desulfurizing and denitrifying fume and its preparation and use |
| CN1792455A (en) * | 2005-12-27 | 2006-06-28 | 中国科学院山西煤炭化学研究所 | Cellular activated-carbon catalyst used for denitrification of flue-gas, prepn. method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 裴润: "《二氧化钛的生产》", 31 October 1958 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | NH3 inhibits mercury oxidation over low-temperature MnOx/TiO2 SCR catalyst | |
| RU2013114393A (en) | METHOD FOR PROCESSING SULFUR CONTAINING GAS AND USED FOR THESE PURPOSES HYDROGENIZATION CATALYST | |
| CN102614890B (en) | Honeycomb integrated selective catalytic reduction (SCR) catalyst for nitric acid and nitrate tail gas denitration | |
| CN105289630A (en) | Method for preparing catalyst capable of performing simultaneous desulfurization and denitrification on flue gas | |
| Yang et al. | Low temperature denitrification and mercury removal of Mn/TiO2-based catalysts: A review of activities, mechanisms, and deactivation | |
| JPS5843224A (en) | Dry type flue gas desulfurization and denitration method | |
| CN105521781B (en) | A kind of preparation method of fume desulfurizing agent | |
| KR102130491B1 (en) | Apparatus and method for purifying exhaust gas of ship | |
| CN107961784A (en) | A kind of catalyst for flue gas and desulfurizing and denitrifying and preparation method thereof | |
| CN110479303A (en) | A kind of dry method solid desulphurization denitration catalyst and its desulfurization denitrification agent | |
| CN105107521A (en) | Mn-Fe double metal-doped active carbon-based desulfurization catalyst, and preparation method thereof | |
| CN106824174A (en) | A kind of coccoid catalyst of high-efficient purification nitrogen oxides and preparation method thereof | |
| CN107344101B (en) | Low-temperature desulfurization and denitrification catalyst, desulfurization and denitrification equipment and desulfurization and denitrification integrated process | |
| CN112403483A (en) | Medium-low temperature non-metal ore-based SCR denitration demercuration catalyst material and preparation method thereof | |
| CN102476030A (en) | Honeycomb monolithic SCR (selective catalytic reduction) catalyst for denitrifying nitric acid and nitrate tail gas and preparation method thereof | |
| CN108187656A (en) | It is a kind of for catalyst of flue gas and desulfurizing and denitrifying and preparation method thereof | |
| CN107952438A (en) | A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof | |
| CN108126700A (en) | A kind of exhuast gas desulfurization mixed carrier catalyst and preparation method thereof | |
| CN114308069B (en) | Preparation method of denitration catalyst with ammonia decomposition function | |
| CN100415344C (en) | Active carbon desulfurizing agent and application thereof | |
| CN110102299B (en) | Desulfurization and denitrification double-effect catalyst and application thereof | |
| CN101862640A (en) | Method for preparing desulfurizer used for removing H2S from natural gas | |
| CN104707618A (en) | Step-wise and region-wise preparation method for NOx storage reduction dual-functional catalyst | |
| CN212396762U (en) | SCR honeycomb catalyst with multi-gradient particle size base material on inner wall | |
| CN106732603A (en) | A kind of copper cobalt dual-metal catalyst and preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180424 |