CN105833829A - Modified porous calcium carbonate adsorbent as well as preparation method and application thereof - Google Patents

Modified porous calcium carbonate adsorbent as well as preparation method and application thereof Download PDF

Info

Publication number
CN105833829A
CN105833829A CN201610243205.1A CN201610243205A CN105833829A CN 105833829 A CN105833829 A CN 105833829A CN 201610243205 A CN201610243205 A CN 201610243205A CN 105833829 A CN105833829 A CN 105833829A
Authority
CN
China
Prior art keywords
calcium carbonate
adsorbent
porous calcium
preparation
modification type
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
Application number
CN201610243205.1A
Other languages
Chinese (zh)
Other versions
CN105833829B (en
Inventor
汪黎东
佟童
漆丹
刑磊
臧齐齐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North China Electric Power University
Original Assignee
North China Electric Power University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by North China Electric Power University filed Critical North China Electric Power University
Priority to CN201610243205.1A priority Critical patent/CN105833829B/en
Publication of CN105833829A publication Critical patent/CN105833829A/en
Application granted granted Critical
Publication of CN105833829B publication Critical patent/CN105833829B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds

Abstract

The invention discloses a modified porous calcium carbonate adsorbent as well as a preparation method and an application thereof, and belongs to the technical field of coal-fired flue gas purification. The modified porous calcium carbonate adsorbent is prepared by taking porous calcium carbonate prepared by taking SDS as a template as a matrix and taking bromine as a modifier to carry out impregnation and modifying on porous calcium carbonate, drying and grinding; the modified porous calcium carbonate adsorbent can be applied to deep purification of coal-fired flue gas. The adsorbent has a relatively great specific surface area, and can simultaneously adsorb most of gas and particulate matter, especially acidic gases such as SO2, SO3, condensable particulate matter and HgO. Saturated calcium carbonate obtained after adsorption can return to a limestone slurry preparation system as a new desulfurization adsorbent; adsorption products comprising SO3<2->, SO4<2->, and condensable particulate matter enter slurry as calcium sulfite or calcium sulfate, and finally enter gypsum, so that secondary pollution is not generated; and the preparation raw materials are low in cost, the process is simple, and industrialization is easy to realize.

Description

A kind of modification type porous calcium carbonate adsorbent and its preparation method and application
Technical field
The invention belongs to purifying coal-fired flue gas technical field, be specifically related to a kind of modification type porous calcium carbonate absorption Agent and its preparation method and application.
Background technology
The situation is tense for the atmospheric pollution of current China, the pollutant of the energy resource structure discharge based on coal, causes very Multizone haze takes place frequently and is on the rise.The mainstream technology of the most domestic purifying coal-fired flue gas be by low nitrogen burning, SCR, high-effective dust-removing and wet desulphurization are sequentially connected in series, and form flue gas multiple pollutant and jointly control system.But should The effect of system is single, it is impossible to condensable particulate matter (predominantly SO in flue gas3) and heavy metal Hg carry out Process, and still have SO2、NOxRemain with dust.Although extensive unit has been mounted with that above-mentioned smoke gas treatment sets Standby, but medium and small boiler flue gas polution control facility operation is in poor shape, uncontrollable discharge phenomenon serious, so far It is not effectively controlled.
Meanwhile, " fossil-fuel power plant atmospheric pollutant emission standard " executed of " the tightest in history ", before the year two thousand twenty All coal-burning power plants must realize minimum discharge, and wherein sulfur dioxide is less than 35mg/m3, nitrogen oxides do not surpasses Cross 50mg/m3, flue dust is less than 5mg/m3.And do not count SO therein now3Discharge capacity be 40-200 mg/m3, the primary pollutant in coal-fired flue-gas will be become.Therefore, the condensable particulate matter in coal-fired flue-gas is (main SO to be3) the gypsum rain problem that causes, and the pollution etc. of heavy metal Hg needs, and our solve.
Summary of the invention
It is an object of the invention to provide a kind of modification type porous calcium carbonate adsorbent and preparation method thereof and answer With, the technical scheme taked is as follows:
A kind of modification type porous calcium carbonate adsorbent, described adsorbent is prepared many with SDS for template Hole calcium carbonate is matrix, with bromide as dressing agent.
Described bromide is NH4Br or NaBr.
The preparation method of described modification type porous calcium carbonate adsorbent, specifically includes following steps:
(1), under magnetic agitation, after calcium chloride water and SDS aqueous solution quickly being mixed, PH is regulated extremely 6.5～11, obtain emulsus mixed liquor；
(2) continuously stirred emulsus mixed liquor, and add aqueous sodium carbonate, stand 4-8 hour, formed white Color precipitates, and is centrifuged white precipitate, washs and obtain porous calcium carbonate；
(3) with bromide solution, porous calcium carbonate is carried out dipping to modify, after drying and grinding, obtain white powder shape Modification type porous calcium carbonate adsorbent.
The concentration of described calcium chloride water is 0.1-0.4mol/L；Described calcium chloride water and SDS aqueous solution Mol ratio be (4:1)-(1:1)；Described aqueous sodium carbonate is (4:1) with the mol ratio of calcium chloride water -(1:1)。
The described centrifugal rotating speed of step (2) is 2000-3000rpm, and the time is 2-3min；The tool of described washing Body mode is: use deionized water and dehydrated alcohol respectively to wash three times.
Described in step (3), in bromide solution, the mass fraction of bromide is 1%-5%.
The temperature being dried described in step (3) is 55-85 DEG C, and the time is 10-12 hour.
The application in coal-fired flue-gas deep purifying of the described modification type porous calcium carbonate adsorbent.
Described modification type porous calcium carbonate adsorbent can adsorb the SO in coal-fired flue-gas3、SO2With metal Hg； Wherein to SO3Adsorption efficiency more than 90%.
Limestone slurry liquid preparing system is returned after described modification type porous calcium carbonate adsorbent is saturated, Use as new desulfurization absorbent, and adsorbed product SO3 2-、SO4 2-, condensable particulate matter then becomes Calcium sulfite or calcium sulfate enter serosity, finally enter Gypsum Fibrosum.
Modification type porous calcium carbonate adsorbent described in 1g is after absorption starts 5min, to SO3Absorption Rate is more than 70%, to Hg0Adsorption efficiency be not less than 95%.
The invention have the benefit that
(1) specific surface area of described modification type porous calcium carbonate adsorbent is relatively big, and adsorption effect is notable, right SO in coal-fired flue-gas3Adsorption efficiency can reach more than 90%, and can effectively remove pole readily soluble in flue gas Property molecule is (such as SO2) and the multi-pollutant such as heavy metal Hg.
(2) can return to lime stone slurry after modification type porous calcium carbonate adsorbent described in is saturated prepare System, uses as new desulfurization absorbent, and adsorbed product SO2-、SO3-, condensable particulate matter then Become calcium sulfite or calcium sulfate enters serosity, finally enter Gypsum Fibrosum, secondary pollution will not be produced.
(3) the modification type porous calcium carbonate adsorbent of the present invention is cheap for manufacturing cost, and preparation technology is simple, Absorption efficiency is high, easily reclaims.Without considering the problem of adsorbent reactivation, greatly reduce operating cost, Applicable China coal fired power plant, large chemical complex, metallurgy industry realize minimum discharge and medium and small boiler flue gas The transformation of pollution control facility, has promotional value.
Accompanying drawing explanation
Fig. 1 is the modification type porous calcium carbonate adsorbent SO of embodiment 1 preparation3Breakthrough curve figure.
Fig. 2 is modification type porous calcium carbonate adsorbent SO prepared by embodiment 2-63Breakthrough curve figure.
Fig. 3 is modification type porous calcium carbonate adsorbent Hg prepared by embodiment 7-90Breakthrough curve figure.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings, but protection scope of the present invention is not It is limited to this.
The method of testing of the adsorption efficiency of modification type porous calcium carbonate adsorbent is as follows: take a certain amount of described absorption Agent adds to fixed bed reactors, is passed through a certain amount of SO3With Hg0The mixed gas of steam is reacted, Carry out absorbing and arranging tail gas collection system by the gas sodium hydroxide solution of fixed bed reactors.Reaction Condition is: the flow velocity of mixed gas is 0.2L/min, and reaction temperature is 65 DEG C.Measure at interval of a period of time The concentration of reactor exit sulfate radical and mercury ion content, be passed through SO in gas3Amount and sodium hydroxide In solution, the difference of the content of sulfate radical is in fixed bed reactors the SO absorbed3Amount, thus obtains a timing Between SO3Absorption efficiency, in like manner can obtain Hg0Absorption efficiency.
Embodiment 1
Under magnetic agitation, by the 0.15mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS water Solution regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 6 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is that the NaBr solution of 1% carries out dipping modification, in 60 DEG C of baking ovens to porous calcium carbonate It is dried, after grinding, obtains the modification type porous calcium carbonate adsorbent of white powder shape.
Being joined by the adsorbent obtained in 5 parallel fixed bed reactors, the consumption of adsorbent is respectively 0.4g, 0.6g, 0.8g, 1.0g, 1.2g, compare its adsorption effect under identical reaction conditions.Use and inhale Attached efficiency and adsorbance characterize adsorbent SO3Ability, result of the test breakthrough curve represents.Bent The vertical coordinate of line is SO in the gas of exit3Concentration (c) and porch SO3Initial concentration (c0Between) Ratio (c/c0× 100%), adsorption efficiency is: (1-c/c0) × 100%, breakthrough curve illustrates adsorbed component Concentration change, absorption result is as shown in Figure 1.
From fig. 1, it can be seen that adsorbent of the present invention is to SO3There is significant adsorption efficiency.When described absorption Agent consumption when 0.4g increases to 1.2g, 5min after absorption starts, fixed bed reactors exit SO3 Concentration and initial SO3The ratio of concentration is reduced to 0.2% from 57%, i.e. SO3Adsorption efficiency from 53% improve To 98.8%.
Embodiment 2
Under magnetic agitation, by the 0.15mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS water Solution regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 8 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 1%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent SO3Penetrate Curve is as shown in Figure 2.It can be seen that after absorption starts 5min, this adsorbent is to SO3Absorption effect Rate is 94.5%.
Embodiment 3
Under magnetic agitation, by the 0.1mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS are water-soluble Liquid regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 8 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 1%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent SO3Penetrate Curve is as shown in Figure 2.It can be seen that after absorption starts 5min, this adsorbent is to SO3Absorption effect Rate is 90%.
Embodiment 4
Under magnetic agitation, by the 0.2mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS are water-soluble Liquid regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 8 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 1%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent SO3Penetrate Curve is as shown in Figure 2.It can be seen that after absorption starts 5min, this adsorbent is to SO3Absorption effect Rate is 84%.
Embodiment 5
With vigorous stirring, by the 0.2mol/L CaCl of same volume2Aqueous solution and 0.05moL/L SDS Aqueous solution regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 8 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 1%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent SO3Penetrate Curve is as shown in Figure 2.It can be seen that after absorption starts 5min, this adsorbent is to SO3Absorption effect Rate is 76%.
Embodiment 6
Under magnetic agitation, by the 0.3mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS are water-soluble Liquid regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 8 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 1%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent SO3Penetrate Curve is as shown in Figure 2.It can be seen that after absorption starts 5min, this adsorbent is to SO3Absorption effect Rate is 71%.
Embodiment 7
Under magnetic agitation, by the 0.15mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS water Solution regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 4 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 1%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent Hg0Penetrate Curve is as shown in Figure 3.The vertical coordinate of curve is Hg in the gas of exit0Concentration (c) and porch Hg0Just Beginning concentration (c0Ratio (c/c between)0× 100%), adsorption efficiency is: (1-c/c0) × 100%.Can from figure Knowing, 5min after absorption starts, this adsorbent is to Hg0Adsorption efficiency be 99.3%.
Embodiment 8
Under magnetic agitation, by the 0.15mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS water Solution regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 4 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 3%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent Hg0Penetrate Curve is as shown in Figure 3.It can be seen that after absorption starts 5min, this adsorbent is to Hg0Absorption effect Rate is 98%.
Embodiment 9
Under magnetic agitation, by the 0.15mol/L CaCl of same volume2Aqueous solution and 0.1moL/L SDS water Solution regulates PH to 9 after quickly mixing, and obtains emulsus mixed liquor；
Continuously stirred emulsus mixed liquor, adds and mixed solution isopyknic 0.2mol/L Na2CO3Water-soluble Liquid, stands 4 hours, forms white precipitate；Centrifugal collection white precipitate, and with deionized water with anhydrous Ethanol is washed three times respectively, obtains porous calcium carbonate；
Using mass fraction is the NH of 5%4Br solution carries out dipping and modifies porous calcium carbonate, 60 DEG C of baking ovens In be dried, obtain the modification type porous calcium carbonate adsorbent of white powder shape after grinding.
The adsorbent prepared by 1.0g joins in fixed bed reactors, described adsorbent Hg0Breakthrough curve As shown in Figure 3.It can be seen that after absorption starts 5min, this adsorbent is to Hg0Adsorption efficiency be 95%.

Claims (10)

1. a modification type porous calcium carbonate adsorbent, it is characterised in that described adsorbent is with SDS The porous calcium carbonate prepared for template is matrix, with bromide as dressing agent.
A kind of modified porous calcium carbonate adsorbent the most according to claim 1, it is characterised in that Described bromide is NH4Br or NaBr.
3. the preparation method of modification type porous calcium carbonate adsorbent described in any one of claim 1-2, it is special Levy and be, specifically include following steps:
(1), under magnetic agitation, after calcium chloride water and SDS aqueous solution quickly being mixed, PH is regulated extremely 6.5～11, obtain emulsus mixed liquor；
(2) continuously stirred emulsus mixed liquor, and add aqueous sodium carbonate, stand 4-8 hour, formed white Color precipitates, and is centrifuged white precipitate, washs and obtain porous calcium carbonate；
(3) with bromide solution, porous calcium carbonate being carried out dipping to modify, dried grinding obtains white powder shape Modification type porous calcium carbonate adsorbent.
Preparation method the most according to claim 3, it is characterised in that described calcium chloride water dense Degree is 0.1-0.4mol/L；Described calcium chloride water is (4:1)-(1:1) with the mol ratio of SDS aqueous solution； Described aqueous sodium carbonate is (4:1)-(1:1) with the mol ratio of calcium chloride water.
Preparation method the most according to claim 3, it is characterised in that step (2) is described centrifugal Rotating speed is 2000-3000rpm, and the time is 2-3min；The concrete mode of described washing is: use deionized water Respectively wash with dehydrated alcohol three times.
Preparation method the most according to claim 3, it is characterised in that step (3) described bromide is molten In liquid, the mass fraction of bromide is 1%-5%.
Preparation method the most according to claim 3, it is characterised in that be dried described in step (3) Temperature be 55-85 DEG C, the time is 10-12 hour.
8. described in any one of claim 1-2, modification type porous calcium carbonate adsorbent is clean in the coal-fired flue-gas degree of depth Application in change.
Application the most according to claim 8, it is characterised in that described modification type porous calcium carbonate adsorbs Agent can adsorb the SO in coal-fired flue-gas3、SO2With metal Hg；Wherein to SO3Adsorption efficiency 90% Above.
Application the most according to claim 8, it is characterised in that described modification type porous calcium carbonate is inhaled Return limestone slurry liquid preparing system after attached dose of absorption is saturated, use as new desulfurization absorbent, and inhale Accessory substance SO3 2-、SO4 2-, condensable particulate matter then becomes calcium sulfite or calcium sulfate and enters serosity, Rear entrance Gypsum Fibrosum.
CN201610243205.1A 2016-04-19 2016-04-19 A kind of modification type porous calcium carbonate adsorbent and its preparation method and application Active CN105833829B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610243205.1A CN105833829B (en) 2016-04-19 2016-04-19 A kind of modification type porous calcium carbonate adsorbent and its preparation method and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610243205.1A CN105833829B (en) 2016-04-19 2016-04-19 A kind of modification type porous calcium carbonate adsorbent and its preparation method and application

Publications (2)

Publication Number Publication Date
CN105833829A true CN105833829A (en) 2016-08-10
CN105833829B CN105833829B (en) 2018-09-11

Family

ID=56590152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610243205.1A Active CN105833829B (en) 2016-04-19 2016-04-19 A kind of modification type porous calcium carbonate adsorbent and its preparation method and application

Country Status (1)

Country Link
CN (1) CN105833829B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110508261A (en) * 2018-10-31 2019-11-29 西安电子科技大学 Adsorb the calcium base Preparation method of magnesium hydroxide of heavy metal copper

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007191670A (en) * 2006-01-20 2007-08-02 Institute Of Strategy For Sustainable Solutions Co Ltd System for producing alkaline soil-improving material, combined with flue-gas desulfurization
CN101985099A (en) * 2010-11-22 2011-03-16 东南大学 Flue gas demercuration adsorbent and preparation method thereof
CN103372418A (en) * 2012-04-28 2013-10-30 东南大学 Modified activated carbon demercuration adsorbent and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007191670A (en) * 2006-01-20 2007-08-02 Institute Of Strategy For Sustainable Solutions Co Ltd System for producing alkaline soil-improving material, combined with flue-gas desulfurization
CN101985099A (en) * 2010-11-22 2011-03-16 东南大学 Flue gas demercuration adsorbent and preparation method thereof
CN103372418A (en) * 2012-04-28 2013-10-30 东南大学 Modified activated carbon demercuration adsorbent and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李亮等: "碳酸钙纳米结构多孔空心微球的制备及其药物缓释性能研究", 《无机材料学报》 *
陈朋: "钙基吸收剂脱除燃煤烟气中SO2的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110508261A (en) * 2018-10-31 2019-11-29 西安电子科技大学 Adsorb the calcium base Preparation method of magnesium hydroxide of heavy metal copper
CN110508261B (en) * 2018-10-31 2021-09-28 西安电子科技大学 Preparation method of calcium-based magnesium hydroxide for adsorbing heavy metal copper

Also Published As

Publication number Publication date
CN105833829B (en) 2018-09-11

Similar Documents

Publication Publication Date Title
CN103239985B (en) Efficient fuel coal flue gas desulfurizing and hydrargyrum-removing method and device thereof
CN107715845B (en) Flue gas desulfurization and denitrification adsorbent and preparation and use methods thereof
CN204502755U (en) A kind of wet method removes the device of sulfur dioxide in flue gas and nitrogen oxide
CN102335589A (en) Adsorbent and preparation method and use thereof
CN103877839A (en) Flue gas pollutant control integrated purification process
CN101279185A (en) Gas phase oxidation-liquid phase reduction method for absorbing and removing nitrous oxides in exhaust air
CN102225303B (en) Combined apparatus and method for dedusting, desulphurization, denitration, demercuration and smoke extraction of coal-fired flue gas
CN102091517A (en) Integrated absorption solution for simultaneous desulfuration, denitration and mercury removal and preparation method and application thereof
CN103894047A (en) Flue gas pollutant control integrated purifying and recycling process
CN110479094A (en) A kind of desulphurization catalyst and the flue gas desulfurization processing system based on desulphurization catalyst
CN101301602B (en) Method for preparing gaseous mercury absorbing and purifying agent
CN103170228A (en) Mixed solution for flue gas denitrification and application method of mixed solution
CN202876647U (en) Wet-process desulfurizing and denitrifying device for coal-fired boiler and kiln smoke
CN107551799A (en) A kind of method of dry-process cement rotary kiln flue gas desulfurization and denitrification integration
CN104128188A (en) Denitration catalyst used in waste incineration power plant and preparation method thereof
CN104785196A (en) Method for preparing modified mesoporous alumina adsorbent for desulfurization and denitration
CN101185843A (en) Method for producing compound fertilizer by using humates simultaneously desulfurizing and denitrating
CN101357322A (en) Preparation method of transition metal compound loaded vermiculite absorbent
CN104874344A (en) Preparation method of flue gas adsorbent
CN105833829A (en) Modified porous calcium carbonate adsorbent as well as preparation method and application thereof
CN203108371U (en) Special device for flue gas dust removal desulfurization and denitrification process
CN202700337U (en) Sintering flue gas purification device
CN104162403B (en) A kind of mixed acid modified calcium-based adsorbent and its preparation method and application
CN115501748B (en) Denitration agent and preparation method thereof
CN203829899U (en) Smoke desulfurization denitration and demercuration device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant