CN105749866A - Composite desulfurizing powder and application thereof - Google Patents
Composite desulfurizing powder and application thereof Download PDFInfo
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- CN105749866A CN105749866A CN201610252907.6A CN201610252907A CN105749866A CN 105749866 A CN105749866 A CN 105749866A CN 201610252907 A CN201610252907 A CN 201610252907A CN 105749866 A CN105749866 A CN 105749866A
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- desulfurization
- nano silicon
- obtains
- monticellite
- mullite
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- 239000000843 powder Substances 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 11
- 230000003009 desulfurizing effect Effects 0.000 title abstract description 6
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 39
- 230000023556 desulfurization Effects 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 15
- 235000010469 Glycine max Nutrition 0.000 claims abstract description 14
- 244000068988 Glycine max Species 0.000 claims abstract description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 14
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 13
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000292 calcium oxide Substances 0.000 claims abstract description 13
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000012241 calcium silicate Nutrition 0.000 claims abstract description 13
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 13
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 13
- 239000010459 dolomite Substances 0.000 claims abstract description 9
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- -1 monticellite Chemical compound 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 16
- 150000002333 glycines Chemical class 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052599 brucite Inorganic materials 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 235000012424 soybean oil Nutrition 0.000 abstract 1
- 239000003549 soybean oil Substances 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- UZGKAASZIMOAMU-UHFFFAOYSA-N 124177-85-1 Chemical compound NP(=O)=O UZGKAASZIMOAMU-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/02—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
- B01J20/041—Oxides or hydroxides
-
- 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
- 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
- B01J20/046—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 containing halogens, e.g. halides
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
-
- 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
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- 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
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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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention belongs to the technical field of environment protection and discloses composite desulfurizing powder, made from the following materials: activated carbon, calcium oxide, calcium fluoride, dicalcium silicate, soybean oil, monticellite, mullite, brucite, sodium hydroxide solution, soybean stalk, nano silicon dioxide, and dolomite.The composite desulfurizing power is good in desulfurizing effect and high in capacity, the preparation process is simple and feasible, and the composite desulfurizing power is applicable to desulfurization of various flue gases.
Description
Technical field
The invention belongs to environmental technology field, disclose a kind of composite desulfurization powder and application thereof.
Background technology
Sulfur dioxide is modal oxysulfide, one of Air Pollutant Discharge.Generally all contain sulphur compound due to coal and oil, therefore can generate sulfur dioxide during burning.When sulfur dioxide is soluble in water, sulfurous acid (main component of acid rain) can be formed.If sulfur dioxide is aoxidized further, generally in the presence of a catalyst, sulphuric acid will be efficiently produced rapidly.Here it is to using these fuel as one of reason of worry of environmental effect of the energy.Flue gas is the major source of Sulfur Dioxide In The Atmosphere.The main purpose of flue gas desulfurization is the discharge capacity in order to control in technical process the pollutant such as produced sulfur dioxide.According to EPA (EPA) add up, countries in the world exploitation, research, use sulfur dioxide control technology reached 189 kinds, it is contemplated that current quantity will more than 200 kinds.These technology sum up and can be divided into four classes, namely burning before desulfurization, burning in desulfurization, coal trans-utilization technology and burning after desulfurization.The main mode adopting flue gas desulfurization in the sulfur removal technology of current China.
Sulfur removal technology difference can be divided into again wet desulphurization, dry desulfurization and semi-dry desulphurization according to desulfurization reaction product and desulfurization product.Wet Flue Gas Desulfurization Technique mainly includes Calx (limestone) method, Dual alkali, sodium method, magnesium processes, ammonia process, seawater method, phospho-ammonium fertilizer method etc.；Desulfurization by dry method mainly includes active carbon adsorption, electron beam irradiation method, plasma desulfuration method, catalytic oxidation and reducing process etc.；Semi-dry desulphurization technology mainly includes flue gas circulating fluidized bed technology, spray drying, in-furnace calcium spraying/humidification activation desulfurization technology, and the various desulfurizing agents being directed to have the advantage of oneself uniqueness.A kind of desulfuration efficiency of exploitation is high, the simple and environmentally-friendly free of contamination desulfurization powder of preparation technology is our technical issues that need to address.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of composite desulfurization powder, this desulfurization powder desulfurized effect is good, capacity is high, preparation technology simple possible, can be applicable to various flue gas desulfurization.
The present invention is realized by following scheme:
A kind of composite desulfurization powder, it is prepared by following raw material and obtains: activated carbon, calcium oxide, calcium fluoride, dicalcium silicate, Oleum Glycines, monticellite, mullite, shepardite, sodium hydrate aqueous solution, soybean stalk, nano silicon, dolomite；
Specifically, above-mentioned powder obtains according to the preparation of following technique:
1) adding in mixing agitator by activated carbon, calcium oxide, calcium fluoride and dicalcium silicate, 500 turns/min stirs 8min, sprays Oleum Glycines while stirring, and after stirring, heating, to 80 DEG C, is incubated 3min, obtains material 1；Wherein, the mass ratio of activated carbon, calcium oxide, calcium fluoride, dicalcium silicate and Oleum Glycines is 10:10:5:3:1；
2) by monticellite, mullite and shepardite respectively by crusher in crushing, then mix, then put in vibrator, particle diameter to be milled to is 100-200um, stops ball milling, discharging, soak 6 hours with the sodium hydrate aqueous solution that concentration is 1M again, last 50 DEG C of drying, obtain material 2；Wherein, the mass ratio of monticellite, mullite, shepardite and sodium hydrate aqueous solution is 3:2:2:5；
3) soybean stalk pulverizer is pulverized, be then ground to the powder of 300-500um, finally mix with nano silicon, obtain material 3；Wherein, the mass ratio of soybean stalk and nano silicon is 3:1；
4) being placed at by dolomite in calcining furnace and calcine 2h, calcining heat is 1000 DEG C, takes out, and is cooled to room temperature, pulverizes and obtains material 4；
5) by material 1, material 2, material 3 and material 4 according to the quality of 10-15:7-10:3-5:1-2 than mixing and stirring, to obtain final product.
Preferably, the particle diameter of nano silicon is 100-500nm.
The beneficial effect that the present invention obtains mainly includes the following aspects:
Powder material combination of the present invention is reasonable, and desulfurized effect is good, and sulfur capacity is high, shortens the vulcanization reaction time；The present invention adopts raw material and the agricultural wastes in extensively source mostly so that garbage becomes the new energy, solves environmental protection of enterprise pressure, it is achieved that turn waste into wealth；The present invention adopts the technique of dolime, adds adsorption effect, plays good catalytic action；Present invention employs discarded soybean stalk, particle diameter is big, forms certain pore structure, improves adsorption effect；The present invention is by spraying Oleum Glycines and heating so that powder surface forms protecting film, improves holding time and the desulfuration efficiency of powder；The present invention, by adding nanometer particle, improves dispersion effect, expands adsorbent capacity；Powder preparation technology simple possible of the present invention, environment friendly and pollution-free, can be widely applied to de-all kinds of flue gas desulfurizations.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in the application, below in conjunction with the application specific embodiment, the present invention is carried out clearly, is fully described by, it is clear that, described embodiment is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of protection of the invention.
Embodiment 1
A kind of composite desulfurization powder, it is prepared by following raw material and obtains: activated carbon, calcium oxide, calcium fluoride, dicalcium silicate, Oleum Glycines, monticellite, mullite, shepardite, sodium hydrate aqueous solution, soybean stalk, nano silicon, dolomite；
Specifically, above-mentioned powder obtains according to the preparation of following technique:
1) adding in mixing agitator by activated carbon, calcium oxide, calcium fluoride and dicalcium silicate, 500 turns/min stirs 8min, sprays Oleum Glycines while stirring, and after stirring, heating, to 80 DEG C, is incubated 3min, obtains material 1；Wherein, the mass ratio of activated carbon, calcium oxide, calcium fluoride, dicalcium silicate and Oleum Glycines is 10:10:5:3:1；
2) by monticellite, mullite and shepardite respectively by crusher in crushing, then mix, then put in vibrator, particle diameter to be milled to is 100um, stops ball milling, discharging, soak 6 hours with the sodium hydrate aqueous solution that concentration is 1M again, last 50 DEG C of drying, obtain material 2；Wherein, the mass ratio of monticellite, mullite, shepardite and sodium hydrate aqueous solution is 3:2:2:5；
3) soybean stalk pulverizer is pulverized, be then ground to the powder of 300um, finally mix with nano silicon, obtain material 3；Wherein, the mass ratio of soybean stalk and nano silicon is 3:1；
4) being placed at by dolomite in calcining furnace and calcine 2h, calcining heat is 1000 DEG C, takes out, and is cooled to room temperature, pulverizes and obtains material 4；
5) by material 1, material 2, material 3 and material 4 according to the quality of 10:7:3:1 than mixing and stirring, to obtain final product.
Embodiment 2
A kind of composite desulfurization powder, it is prepared by following raw material and obtains: activated carbon, calcium oxide, calcium fluoride, dicalcium silicate, Oleum Glycines, monticellite, mullite, shepardite, sodium hydrate aqueous solution, soybean stalk, nano silicon, dolomite；
Specifically, above-mentioned powder obtains according to the preparation of following technique:
1) adding in mixing agitator by activated carbon, calcium oxide, calcium fluoride and dicalcium silicate, 500 turns/min stirs 8min, sprays Oleum Glycines while stirring, and after stirring, heating, to 80 DEG C, is incubated 3min, obtains material 1；Wherein, the mass ratio of activated carbon, calcium oxide, calcium fluoride, dicalcium silicate and Oleum Glycines is 10:10:5:3:1；
2) by monticellite, mullite and shepardite respectively by crusher in crushing, then mix, then put in vibrator, particle diameter to be milled to is 200um, stops ball milling, discharging, soak 6 hours with the sodium hydrate aqueous solution that concentration is 1M again, last 50 DEG C of drying, obtain material 2；Wherein, the mass ratio of monticellite, mullite, shepardite and sodium hydrate aqueous solution is 3:2:2:5；
3) soybean stalk pulverizer is pulverized, be then ground to the powder of 500um, finally mix with nano silicon, obtain material 3；Wherein, the mass ratio of soybean stalk and nano silicon is 3:1；
4) being placed at by dolomite in calcining furnace and calcine 2h, calcining heat is 1000 DEG C, takes out, and is cooled to room temperature, pulverizes and obtains material 4；
5) by material 1, material 2, material 3 and material 4 according to the quality of 15:10:5:2 than mixing and stirring, to obtain final product.
Embodiment 3
The simulation flue gas containing sulfur dioxide, enters the desulphurization reaction room containing embodiment 1 desulfurization powder, and velocity of flue gas is 0.5m/min, and flue-gas temperature is 100 DEG C, sets respectively desulfurization time as 10,20,30,60min, mensuration desulfurization degree, be specifically shown in table 1:
Table 1
| Desulfurization time min | Inlet concentration mg/m3 | Exit concentration mg/m3 | Desulfurization degree % |
| 10 | 798.3 | 208.7 | 73.85 |
| 20 | 812.2 | 186.4 | 77.05 |
| 30 | 803.5 | 159.7 | 80.12 |
| 60 | 805.1 | 157.8 | 80.40 |
Conclusion: inventive desulfurization powder desulfurization rate can reach more than 80%；After reaction terminates, have detected the desulfurization powder work 30min adsorbance to sulfur dioxide: every gram of adsorbable sulfur dioxide 56.3mg of adsorbent, adsorption capacity is good, and the response time is short.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that these descriptions are all illustrative of, is not limiting the scope of the invention.The present invention can be made various variants and modifications according to the spirit of the present invention and principle by those skilled in the art, and these variants and modifications are also within the scope of the invention.
Claims (5)
1. a composite desulfurization powder, it is prepared by following raw material and obtains: activated carbon, calcium oxide, calcium fluoride, dicalcium silicate, Oleum Glycines, monticellite, mullite, shepardite, sodium hydrate aqueous solution, soybean stalk, nano silicon, dolomite.
2. desulfurization powder according to claim 1, it is characterised in that described desulfurization powder obtains according to the preparation of following technique:
Step 1): add in mixing agitator by activated carbon, calcium oxide, calcium fluoride and dicalcium silicate, 500 turns/min stirs 8min, sprays Oleum Glycines while stirring, and after stirring, heating, to 80 DEG C, is incubated 3min, obtains material 1；
Step 2): by monticellite, mullite and shepardite respectively by crusher in crushing, then mix, put into again in vibrator, particle diameter to be milled to is 100-200um, stop ball milling, discharging, then soak 6 hours with the sodium hydrate aqueous solution that concentration is 1M, last 50 DEG C of drying, obtain material 2；
Step 3): soybean stalk pulverizer is pulverized, is then ground to the powder of 300-500um, finally mixes with nano silicon, obtain material 3；Wherein, the mass ratio of soybean stalk and nano silicon is 3:1；
Step 4): being placed at by dolomite in calcining furnace and calcine 2h, calcining heat is 1000 DEG C, takes out, and is cooled to room temperature, pulverizes and obtains material 4；
Step 5): by material 1, material 2, material 3 and material 4 according to the quality of 10-15:7-10:3-5:1-2 than mixing and stirring, to obtain final product.
3. desulfurization powder according to claim 2, it is characterised in that in described step 1), the mass ratio of activated carbon, calcium oxide, calcium fluoride, dicalcium silicate and Oleum Glycines is 10:10:5:3:1.
4. desulfurization powder according to claim 2, it is characterised in that described step 2) in, the mass ratio of monticellite, mullite, shepardite and sodium hydrate aqueous solution is 3:2:2:5.
5. the desulfurization powder according to claim 2-4, it is characterised in that preferably, the particle diameter of described nano silicon is 100-500nm.
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| WO2019062448A1 (en) * | 2017-09-30 | 2019-04-04 | 中晶环境科技股份有限公司 | Desulfurizer, and preparation method therefor and application thereof |
| CN110252252A (en) * | 2019-06-21 | 2019-09-20 | 辽宁北环净化技术有限公司 | A kind of preparation method of NGFX dry desulfurization absorption brick |
| CN111672269A (en) * | 2020-06-28 | 2020-09-18 | 潮州市中乾环境科技有限公司 | Environment-friendly waste gas treatment device with adsorption function |
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| JP2006110546A (en) * | 2005-11-28 | 2006-04-27 | Jiro Sasaoka | Aggregated carbonaceous absorbent |
| CN103127908A (en) * | 2012-12-13 | 2013-06-05 | 青岛特利尔环保锅炉工程有限公司 | Preparation method and use method of boiler tail flue gas desulfurization and denitrification purification materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006110546A (en) * | 2005-11-28 | 2006-04-27 | Jiro Sasaoka | Aggregated carbonaceous absorbent |
| CN103127908A (en) * | 2012-12-13 | 2013-06-05 | 青岛特利尔环保锅炉工程有限公司 | Preparation method and use method of boiler tail flue gas desulfurization and denitrification purification materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062448A1 (en) * | 2017-09-30 | 2019-04-04 | 中晶环境科技股份有限公司 | Desulfurizer, and preparation method therefor and application thereof |
| CN110252252A (en) * | 2019-06-21 | 2019-09-20 | 辽宁北环净化技术有限公司 | A kind of preparation method of NGFX dry desulfurization absorption brick |
| CN111672269A (en) * | 2020-06-28 | 2020-09-18 | 潮州市中乾环境科技有限公司 | Environment-friendly waste gas treatment device with adsorption function |
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