CN205760612U - The preparation system of denitrating catalyst - Google Patents
The preparation system of denitrating catalyst Download PDFInfo
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- CN205760612U CN205760612U CN201620438966.8U CN201620438966U CN205760612U CN 205760612 U CN205760612 U CN 205760612U CN 201620438966 U CN201620438966 U CN 201620438966U CN 205760612 U CN205760612 U CN 205760612U
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Abstract
This utility model discloses the preparation system of a kind of denitrating catalyst, proposes mainly for obtaining the low-temperature catalytic activity height denitrating catalyst strong with water resistant sulfur resistance.System described in the preparation system of this utility model denitrating catalyst includes liquor zinci chloridi storage tank, microwave radiation device, manganese salt and cobalt salt mixed solution storage tank, drying unit, calciner plant.The catalyst that the preparation system of this utility model denitrating catalyst obtains may be used for low-temperature denitration of flue gas, this catalyst is with the activated coke/charcoal through microwave modification as carrier, with be supported on its surface manganese cobalt composite oxide as active component, the reduction for nitrogen oxides has the highest catalytic efficiency and has good water resistant sulfur resistance.
Description
Technical field
This utility model relates to the preparation system of a kind of denitrating catalyst.
Background technology
The nitrogen oxides produced by combustion of fossil fuel can cause acid rain, photochemical fog and ozone layer dissipation etc. multiple
Environmental hazard, and the healthy generation impact on the mankind, become a kind of main atmosphere pollution.Therefore, one is sought
Plant and control NOxThe cost-effective technological means of discharge is particularly significant.
At present, with the WO that adulterates3Or MoO3V2O5/TiO2SCR (SCR) technology based on catalyst
It it is the mainstream technology scheme of commercial.The major defect of this technical scheme is catalyst activity temperature window (300-400
DEG C) too high, easily because of dust deposition and SO2It is poisoned and inactivates；And if flue gas first passes through dedusting and desulfurization, though such flue gas
There are relatively low flue dust and SO2Concentration, but flue-gas temperature relatively low (100-180 DEG C), it is impossible to reach the WO that adulterates3Or MoO3V2O5/
TiO2The active temperature windows of catalyst；Therefore the SCR catalyst that exploitation has good low temperature active starts by researcher
Pay attention to.
CN201210481033 discloses a kind of eutectic with tri-kinds of metal-oxides of Ce-Zr-Co MnO as carrierx
Low-temperature SCR catalyst, but the most a height of 150-250 DEG C of its active temperature windows so that this catalyst is only applicable to desulfurization
Before equipment, higher SO2Concentration creates restriction to the life-span of catalyst；CN201010606894 discloses one and is doped with
The Mn-Ce/TiO of one or more elements in Co, Cu, Cr, Zr, Al2Catalyst, the active temperature windows of this catalyst is
100-180 DEG C, but its cost of material used is of a relatively high, and prepare the catalysis containing Determination of multiple metal elements by coprecipitation
Agent, its performance is difficult to ensure, and in high concentration SO2Under the conditions of the activity of catalyst unsatisfactory.Even additionally, relatively low dense
The SO of degree2Under the conditions of, when in flue gas, vapour content is the highest, the activity of existing low-temperature denitration SCR catalyst all can be subject to
Considerable influence.
Utility model content
For the problems referred to above, this utility model provides a kind of production to have good low-temperature catalytic activity and water resistant sulfur resistive
The preparation system of the denitrating catalyst of the denitrating catalyst that performance is strong.
For reaching above-mentioned purpose, the preparation system of a kind of denitrating catalyst of this utility model, described system includes zinc chloride
Solution storage trough, microwave radiation device, manganese salt and cobalt salt mixed solution storage tank, drying unit, calciner plant；
Described system includes liquor zinci chloridi storage tank, microwave radiation device, manganese salt and cobalt salt mixed solution storage tank, drying dress
Put, calciner plant；
Described liquor zinci chloridi storage tank is used for placing liquor zinci chloridi and soaks activated coke/charcoal, and the activated coke after soaking/
Charcoal exports drying unit；
Described microwave radiation device for access drying unit output activated coke/charcoal, and carry out microwave radiation processing from
And obtain modified active coke/charcoal, then the modified active coke/charcoal after microwave radiation processing is exported manganese salt and cobalt salt mixing
Solution storage trough；
Described manganese salt and cobalt salt mixed solution storage tank are for storing manganese salt and the cobalt salt mixing of modified active coke/charcoal dipping
Liquid, and the modified active coke/charcoal after dipping is exported drying unit；
Described calciner plant is for the modified active coke/charcoal of access drying unit output, and carries out modified active coke/charcoal
Calcining.
Further, the liquor zinci chloridi volume in every kilogram of liquor zinci chloridi storage tank corresponding to activated coke/charcoal is soaked big
In 10L, the concentration of described liquor zinci chloridi is 0.3-2mol/L.
Further, described microwave radiation device be frequency be the industrial microwave oven of 2450MHZ or 915MHZ, unit mass
The microwave power that activated coke/charcoal is corresponding is 0.5kW/kg～5kW/kg, and microwave irradiation time is 5-20 minute.
Further, described calciner plant Muffle furnace, the temperature of Muffle furnace during the modified active coke after described drying/charcoal calcining
Degree controls at 200～600 DEG C, and the time of calcining is 3～10h.
Further, described system also includes inert gas installation, and described inert gas installation is to described industrial microwave oven
Noble gas ring is formed in described industrial microwave oven and in described Muffle furnace with feeding noble gas in described Muffle furnace
Border.
Further, described system also includes defecator, and described defecator will be for soaking through liquor zinci chloridi
Activated coke/charcoal separate with liquor zinci chloridi and modified active coke/charcoal that manganese salt and cobalt salt mixed solution are impregnated and manganese salt and
Cobalt salt mixed solution separates, and the filter opening mesh number of described defecator is 20～30 mesh.
Catalyst prepared by the preparation system of this utility model denitrating catalyst may be used for low-temperature denitration of flue gas, this catalysis
Agent with the activated coke/charcoal through microwave modification as carrier, be supported on its surface manganese cobalt composite oxide as active component, from
And the reduction for nitrogen oxides has the highest catalytic efficiency and has good water resistant sulfur resistance.
Accompanying drawing explanation
Fig. 1 is the technology arrangement schematic diagram of the preparation system of denitrating catalyst.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is further described.
Embodiment 1
The present embodiment provides the preparation system of a kind of denitrating catalyst, and the preparation system of the present embodiment denitrating catalyst includes
Liquor zinci chloridi storage tank, defecator, microwave radiation device, manganese salt and cobalt salt mixed solution storage tank, drying unit, calcining dress
Put, inert gas installation.
Wherein, described liquor zinci chloridi storage tank is used for placing liquor zinci chloridi immersion activated coke/charcoal；Described microwave radiation fills
Put and obtain modified active for the activated coke/charcoal soaking post-drying through liquor zinci chloridi is carried out microwave radiation processing
Jiao/charcoal；Described microwave radiation device can be frequency be the industrial microwave oven of 2450MHZ or 915MHZ；Described manganese salt and cobalt salt mix
Close solution storage trough for storing manganese salt and the cobalt salt mixed liquor of modified active coke/charcoal dipping；Described drying unit is used for drying warp
Superchlorination zinc solution soak activated coke/charcoal and dipping manganese salt and cobalt salt mixed liquor after modified active coke/charcoal, described drying fill
Putting can be drying baker.Described calciner plant modified active coke/charcoal after calcining drying, described calciner plant can be Muffle
Stove；Described inert gas installation feeds noble gas thus micro-in described industry in described industrial microwave oven and described Muffle furnace
Inert gas environment is formed in ripple stove and in described Muffle furnace；Described defecator is for soaking through liquor zinci chloridi
Activated coke/charcoal separates with liquor zinci chloridi and modified active coke/charcoal of manganese salt and cobalt salt mixed solution being impregnated and manganese salt and cobalt
Mixed salt solution separates, and the filter opening mesh number of described defecator is 20～30 mesh.
The work process of the present embodiment denitrating catalyst system is:
In liquor zinci chloridi storage tank, compound concentration is 0.3-2mol/L liquor zinci chloridi, and every kilogram of activated coke/charcoal institute is right
The volume ＞ 10L of the liquor zinci chloridi answered, can be preferably 20-30L further；Activated coke/charcoal is placed into liquor zinci chloridi
Filter after soaking 2h in storage tank；
Being dried in drying baker by the activated coke/charcoal being filtrated to get, the temperature of drying is not more than 100 DEG C, and drying time is
24h。
Activated coke/charcoal after drying afterwards is placed in industrial microwave oven, uses nitrogen to do protection gas, adjusts microwave oven merit
Rate is 0.5kW/kg～5kW/kg, to activated coke sustained radiation 5-20min.
Modified active coke/charcoal is immersed in and stores up equipped with manganese salt in described manganese salt and cobalt salt mixed solution and cobalt salt mixed solution
In groove, filtering after soaking 12h, gained sample is dried at a temperature of 100 DEG C in air atmosphere in 24h is placed on Muffle furnace and is carried out
Calcining.Doing protection gas with nitrogen in calcination process, calcining heat is 200-600 DEG C, and calcination time is 3-10h.
Denitrating catalyst prepared by the preparation system of the present embodiment denitrating catalyst includes carrier and active component, described load
Body is the modified active coke/charcoal through microwave modification, and described active component is manganese cobalt composite oxide.
The effective mass of described manganese cobalt composite oxide manganese and cobalt is modified more alive relative to described than for 2:1～1:1, manganese and cobalt
The effective mass of property Jiao/high-area carbon is than for 0.03:1～0.2:1.
The present embodiment is used as the modified active coke/charcoal of carrier can use common activated coke, active fruit shell carbon, wooden work
Property charcoal, coal mass active carbon etc. carry out microwave radiation acquisition.
Catalyst prepared by the preparation system of the present embodiment denitrating catalyst may be used for low-temperature denitration of flue gas, this catalyst
With the activated coke/charcoal through microwave modification as carrier, be supported on its surface manganese cobalt composite oxide as active component, it is thus achieved that
Nitrogen oxides reduction is had to the highest catalytic efficiency and has the catalyst of good water resistant sulfur resistance.
The preparation system of this utility model denitrating catalyst, filtering drying after activated coke/charcoal is soaked with liquor zinci chloridi,
And be modified by microwave radiation in atmosphere of inert gases, it is thus achieved that modified active coke/high-area carbon；Using manganese salt and cobalt salt as
Manganese and cobalt are supported on modified active coke/carbon surface by the method for dipping by presoma, and enter it in atmosphere of inert gases
Row calcining.There occurs change by the activated coke/high-area carbon physicochemical property of zinc chloride dipping and microwave modification, be combined with manganese cobalt
Make the catalyst catalysis for nitrogen oxides under the cryogenic conditions of 100～180 DEG C reduce under the synergism of oxide to have
There are good catalysis activity and water resistant sulfur resistance.
Above, preferred embodiment the most of the present utility model, but protection domain of the present utility model is not limited thereto, and appoints
What those familiar with the art in the technical scope that this utility model discloses, the change that can readily occur in or replace
Change, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
The protection domain defined is as the criterion.
Claims (6)
1. the preparation system of a denitrating catalyst, it is characterised in that: described system includes liquor zinci chloridi storage tank, microwave radiation
Device, manganese salt and cobalt salt mixed solution storage tank, drying unit, calciner plant；
Described liquor zinci chloridi storage tank is used for placing liquor zinci chloridi and soaks activated coke/charcoal, and the activated coke/charcoal after soaking is defeated
Go out to drying unit；
Described microwave radiation device is for the activated coke/charcoal of access drying unit output, and carries out microwave radiation processing thus obtain
Obtain modified active coke/charcoal, then the modified active coke/charcoal after microwave radiation processing is exported manganese salt and cobalt salt mixed solution
Storage tank；
Described manganese salt and cobalt salt mixed solution storage tank are used for storing manganese salt and the cobalt salt mixed liquor of modified active coke/charcoal dipping, and
Modified active coke/charcoal after dipping is exported drying unit；
Described calciner plant is for the modified active coke/charcoal of access drying unit output, and forges modified active coke/charcoal
Burn.
The preparation system of denitrating catalyst the most according to claim 1, it is characterised in that: soak every kilogram of activated coke/charcoal
The corresponding liquor zinci chloridi volume in liquor zinci chloridi storage tank is more than 10L, and the concentration of described liquor zinci chloridi is 0.3-2mol/
L。
The preparation system of denitrating catalyst the most according to claim 1, it is characterised in that: described microwave radiation device is frequency
Rate is the industrial microwave oven of 2450MHZ or 915MHZ, the microwave power that unit mass activated coke/charcoal is corresponding be 0.5kW/kg～
5kW/kg, microwave irradiation time is 5-20 minute.
The preparation system of denitrating catalyst the most according to claim 3, it is characterised in that: described calciner plant Muffle furnace,
During the calcining of the modified active coke after described drying/charcoal, the temperature of Muffle furnace controls at 200～600 DEG C, the time of calcining be 3～
10h。
The preparation system of denitrating catalyst the most according to claim 4, it is characterised in that: described system also includes indifferent gas
Body device, described inert gas installation feeds noble gas thus in described work in described industrial microwave oven and described Muffle furnace
Inert gas environment is formed in industry microwave oven and in described Muffle furnace.
The preparation system of denitrating catalyst the most according to claim 1, it is characterised in that: described system also includes filtering
Device, described defecator is for separating the activated coke/charcoal soaked through liquor zinci chloridi and by manganese salt with liquor zinci chloridi
Separate with manganese salt and cobalt salt mixed solution with the modified active coke/charcoal of cobalt salt mixed solution dipping, the filter opening of described defecator
Mesh number is 20～30 mesh.
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| CN201620438966.8U CN205760612U (en) | 2016-05-12 | 2016-05-12 | The preparation system of denitrating catalyst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000415A (en) * | 2016-05-12 | 2016-10-12 | 中冶华天工程技术有限公司 | Denitration catalyst and preparation method and preparation system thereof |
| CN108465471A (en) * | 2018-04-20 | 2018-08-31 | 安徽工业大学 | The production system and method for the cerium base catalyst of a kind of cooperation-removal bioxin and nitrogen oxides |
-
2016
- 2016-05-12 CN CN201620438966.8U patent/CN205760612U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000415A (en) * | 2016-05-12 | 2016-10-12 | 中冶华天工程技术有限公司 | Denitration catalyst and preparation method and preparation system thereof |
| CN108465471A (en) * | 2018-04-20 | 2018-08-31 | 安徽工业大学 | The production system and method for the cerium base catalyst of a kind of cooperation-removal bioxin and nitrogen oxides |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220608 Address after: 243000 Fu Chang Industrial Park, 259 HSI Nan Road, Ma'anshan economic and Technological Development Zone, Anhui Patentee after: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee after: HUATIAN NANJING ENGINEERING & TECHNOLOGY CORPORATION, MCC Address before: 243005 Hunan West Road, Ma'anshan, Ma'anshan, Anhui Patentee before: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee before: MCC Huatian (Anhui) energy conservation and Environmental Protection Research Institute Co., Ltd |