CN114788987B - Synergist with high desulfurization efficiency and obvious energy-saving effect and preparation method thereof - Google Patents
Synergist with high desulfurization efficiency and obvious energy-saving effect and preparation method thereof Download PDFInfo
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- CN114788987B CN114788987B CN202110578570.9A CN202110578570A CN114788987B CN 114788987 B CN114788987 B CN 114788987B CN 202110578570 A CN202110578570 A CN 202110578570A CN 114788987 B CN114788987 B CN 114788987B
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 59
- 230000023556 desulfurization Effects 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 57
- 230000000694 effects Effects 0.000 title claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 43
- 150000007524 organic acids Chemical class 0.000 claims abstract description 39
- -1 organic acid salt Chemical class 0.000 claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 29
- 239000003054 catalyst Substances 0.000 claims abstract description 27
- 230000003647 oxidation Effects 0.000 claims abstract description 27
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 27
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 54
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 42
- 239000000203 mixture Substances 0.000 claims description 39
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 24
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 24
- 239000004094 surface-active agent Substances 0.000 claims description 23
- 239000001361 adipic acid Substances 0.000 claims description 21
- 235000011037 adipic acid Nutrition 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 18
- 239000001632 sodium acetate Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 14
- 229940099596 manganese sulfate Drugs 0.000 claims description 13
- 239000011702 manganese sulphate Substances 0.000 claims description 13
- 235000007079 manganese sulphate Nutrition 0.000 claims description 13
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 13
- KYKFCSHPTAVNJD-UHFFFAOYSA-L sodium adipate Chemical compound [Na+].[Na+].[O-]C(=O)CCCCC([O-])=O KYKFCSHPTAVNJD-UHFFFAOYSA-L 0.000 claims description 13
- 239000001601 sodium adipate Substances 0.000 claims description 13
- 235000011049 sodium adipate Nutrition 0.000 claims description 13
- 229940074404 sodium succinate Drugs 0.000 claims description 13
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims description 13
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 12
- 235000017281 sodium acetate Nutrition 0.000 claims description 12
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical group [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 10
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 10
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 239000012747 synergistic agent Substances 0.000 claims 1
- 235000019738 Limestone Nutrition 0.000 abstract description 14
- 239000006028 limestone Substances 0.000 abstract description 14
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000002195 synergetic effect Effects 0.000 description 6
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 5
- 229910017053 inorganic salt Inorganic materials 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 4
- 235000010261 calcium sulphite Nutrition 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000001509 sodium citrate Substances 0.000 description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- OPGYRRGJRBEUFK-UHFFFAOYSA-L disodium;diacetate Chemical compound [Na+].[Na+].CC([O-])=O.CC([O-])=O OPGYRRGJRBEUFK-UHFFFAOYSA-L 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 235000011083 sodium citrates Nutrition 0.000 description 3
- 235000017454 sodium diacetate Nutrition 0.000 description 3
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229960001484 edetic acid Drugs 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- IZWSFJTYBVKZNK-UHFFFAOYSA-N lauryl sulfobetaine Chemical compound CCCCCCCCCCCC[N+](C)(C)CCCS([O-])(=O)=O IZWSFJTYBVKZNK-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 229960004889 salicylic acid Drugs 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 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
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229940083575 sodium dodecyl sulfate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- 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
Abstract
The application relates to the technical field of desulfurization synergists, in particular to a synergist with high desulfurization efficiency and obvious energy-saving effect and a preparation method thereof. The preparation raw materials comprise the following components in percentage by weight: comprises 40-70% of organic acid, 10-30% of organic acid salt, 1-5% of oxidation catalyst and 1-5% of scale inhibitor. The synergist improves the solubility of limestone, obviously improves the desulfurization efficiency, reduces the load of a boiler and reduces the electricity consumption.
Description
Technical Field
The application relates to the technical field of desulfurization synergists, in particular to a synergist with high desulfurization efficiency and obvious energy-saving effect and a preparation method thereof.
Background
In recent years, the development of electric industry is rapid, the electric coal resources are tense, and coal price becomes a bottleneck affecting the operation of the electric industry. Because of the variation of coal types, the deviation from the designed sulfur content occurs, and the search for a relatively economical and effective technical means for coping with the diversification of raw materials under the harsh conditions is also urgent. At present, the existing transport device adopting limestone-gypsum wet desulfurization (FGD) process accounts for more than 80% of the flue gas desulfurization configuration proportion of the power plant, and is the main stream process of flue gas desulfurization. The FGD process mainly comprises that flue gas from a boiler passes through an electric dust collector, is sent into a desulfurization absorption tower through a flue by a flue gas fan, reacts with atomized limestone slurry to generate calcium sulfite, and oxidizes the calcium sulfite into calcium sulfate dihydrate (gypsum) by forced oxidization of an oxidization fan. The limestone slurry is pumped to an atomizing nozzle through a circulating pump to be atomized and downward to contact with the flue gas, the demister removes water mist from the desulfurized flue gas, and the flue gas is reheated and then discharged into a chimney. In the desulfurization process, the core point is in the dissolution of the desulfurization absorbent calcium carbonate and the oxidation of the calcium sulfite.
The desulfurizing agent limestone used for FGD is easy to obtain, but has unsatisfactory solubility and reactivity, and for desulfurization effect, generally, the liquid-gas ratio is improved, the higher slurry circulation is maintained, and the like, which directly increase the energy consumption and the plant power consumption. Under the conditions that the coal price is increased and the desulfurization electricity price cannot be guaranteed, the operation cost of the high-cost desulfurization facility is reduced. In addition, the most effective means at present is to add desulfurization synergistic additives to promote the dissolution of calcium carbonate and the oxidation and crystallization of calcium sulfite. The inorganic salt component in the common desulfurizing agent in the prior art has limited desulfurization effect, is easy to cause scaling and blocking, causes system resistance to increase, and when the system resistance of the flue gas is over-limited, the booster fan is in surge or vibration exceeding and is in urgent bypass. It is urgent to improve the components and the quality of the desulfurization enhancer, thereby improving the operation reliability.
Disclosure of Invention
In order to solve the technical problems, the first aspect of the application provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise, by weight, 55-75% of organic acid, 10-30% of organic acid salt, 1-10% of oxidation catalyst and 1-10% of scale inhibitor.
As a preferable technical scheme of the application, the preparation raw materials further comprise 1-5% of surfactant by weight percent.
As a preferable technical scheme of the application, the organic acid comprises at least one of adipic acid, succinic acid, sebacic acid, citric acid and salicylic acid.
As a preferable technical scheme of the application, the organic acid salt comprises at least one of sodium adipate, sodium succinate, sodium acetate, sodium diacetate and sodium citrate.
As a preferable technical scheme of the application, the organic acid comprises the mixture of adipic acid and citric acid, and the weight ratio is (3-5): 1.
as a preferable technical scheme of the application, the weight ratio of the organic acid to the organic acid salt is (6-8) (2-4).
As a preferable technical scheme of the application, the oxidant catalyst comprises at least one of manganese sulfate, ferric sulfate, copper sulfate, tetrabutylammonium chloride and trichloro powder.
As a preferable technical scheme of the application, the scale inhibitor comprises at least one of amino trimethylene phosphonic acid, hydroxy ethylene diphosphonic acid, ethylene diamine tetraacetic acid, polyacrylic acid, sodium polyacrylate and AA/AMPS copolymer.
As a preferable technical scheme of the application, the sodium polyacrylate is low molecular weight sodium polyacrylate.
The second aspect of the application provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: the method is characterized by comprising the following steps of: mixing the preparation raw materials according to the formula amount, and stirring until the mixture is completely and uniformly mixed to obtain the finished product.
The beneficial effects are that:
the synergist provided by the application has the advantages that the desulfurization efficiency is high, the energy-saving effect is obvious, the raw material organic acid is prepared by mixing adipic acid and citric acid, on one hand, the dosage of adipic acid with higher cost can be reduced, the cost is reduced, on the other hand, a buffer pair can be provided, the mass transfer process between a gas film and a liquid film is quickened, the reaction speed is improved, and the desulfurization synergistic effect is improved. The weight ratio of the organic acid to the organic acid salt is (6-8) (2-4), the PH value of the system can be kept stable, the solid-liquid interface can maintain the acidic environment, the solubility of the limestone in the liquid phase is improved, and the utilization rate of the limestone in the slurry is improved. In addition, a specific scale inhibitor is selected to enable the dispersion system to be in a stable state, reduce the sedimentation speed of limestone, reduce the scaling and blocking of equipment, change the characteristics of calcium sulfate crystals, promote the surface amorphous degree of calcium carbonate to be increased, and increase the surface area, thereby improving the reaction efficiency. In addition, the load of the boiler is reduced, the electricity consumption is reduced, and the energy-saving effect is remarkable.
Detailed Description
The contents of the present application can be more easily understood by referring to the following detailed description of preferred embodiments of the present application and examples included. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of conflict, the present specification, definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprising," "including," "having," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified element, step or component. If used in a claim, such phrase will cause the claim to be closed, such that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the claim body, rather than immediately following the subject, it is limited to only the elements described in that clause; other elements are not excluded from the stated claims as a whole.
When an equivalent, concentration, or other value or parameter is expressed as a range, preferred range, or a range bounded by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when ranges of "1 to 5" are disclosed, the described ranges should be construed to include ranges of "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a numerical range is described herein, unless otherwise indicated, the range is intended to include its endpoints and all integers and fractions within the range.
The singular forms include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or event may or may not occur, and that the description includes both cases where the event occurs and cases where the event does not.
Approximating language, in the specification and claims, may be applied to modify an amount that would not limit the application to the specific amount, but would include an acceptable portion that would be close to the amount without resulting in a change in the basic function involved. Accordingly, the modification of a numerical value with "about", "about" or the like means that the present application is not limited to the precise numerical value. In some examples, the approximating language may correspond to the precision of an instrument for measuring the value. In the description and claims of the application, the range limitations may be combined and/or interchanged, if not otherwise specified, including all the sub-ranges subsumed therein.
In order to solve the technical problems, the first aspect of the application provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise, by weight, 55-75% of organic acid, 10-30% of organic acid salt, 1-10% of oxidation catalyst and 1-10% of scale inhibitor.
In some preferred embodiments, the preparation raw materials further comprise 1-5% of a surfactant in weight percent.
In some preferred embodiments, the organic acid comprises at least one of adipic acid, succinic acid, sebacic acid, citric acid, salicylic acid.
Adipic acid is often selected as the organic acid in the prior art, but the desulfurization synergistic effect of the organic acid with a single component is limited, and in addition, the cost of the adipic acid is relatively high. In some preferred embodiments of the present application, the organic acid is a mixture of adipic acid and citric acid, so that on one hand, the amount of adipic acid with higher cost can be reduced, and on the other hand, with the addition of citric acid, a buffer pair can be provided, the mass transfer process between the gas film and the liquid film can be accelerated, and the reaction speed can be increased, so that the desulfurization synergistic effect can be improved. Meanwhile, the citric acid can be in complexation with calcium ions, and is attached to the newly generated dihydrate gypsum, so that the crystal growth is slow, the growth speed of the gypsum is relieved, and the scale inhibition effect can be achieved. In some more preferred embodiments, the weight ratio of adipic acid to citric acid is (3-5): 1.
in some preferred embodiments, the organic acid salt comprises at least one of sodium adipate, sodium succinate, sodium acetate, sodium diacetate, sodium citrate.
In the prior art, metal inorganic salt is often added into the desulfurization synergist to be used as a main component of desulfurization synergy together with other components, such as MgSO 4 、Na 2 SO, naCl, mgCl, but the metal inorganic salt has limited improvement on desulfurization efficiency and poor system stability.
In some preferred embodiments of the present application, the organic acid salt comprises at least one of sodium adipate, sodium succinate, sodium acetate, sodium diacetate, and sodium citrate. The application takes the organic acid and the organic acid salt as main desulfurization synergistic components, and the desulfurization synergistic components formed by mixing the organic acid and the organic acid salt can keep the stability of the pH value of a system, so that a solid-liquid interface maintains a meta-acid environment, the solubility of limestone in a liquid phase is improved, and the utilization rate of limestone in slurry is improved. The mixing of the organic acid and the organic acid salt can also improve the properties of slurry, enhance the capability of absorbing sulfur dioxide and finally improve the desulfurization efficiency. The boiler load is reduced, the electricity consumption is reduced, and the energy-saving effect is obvious. In some more preferred embodiments, the weight ratio of organic acid to organic acid salt is (6-8): 2-4. In some more preferred embodiments, the weight ratio of organic acid to organic acid salt is 7:3.
In some preferred embodiments, the oxidant catalyst comprises at least one of manganese sulfate, iron sulfate, copper sulfate, tetrabutylammonium chloride, and trichloro powder.
In some preferred embodiments, the surfactant is at least one of sodium alkylbenzenesulfonate, sodium dodecylbenzenesulfonate, dodecyl sulfobetaine, sodium dodecylsulfate.
In some preferred embodiments, the scale inhibitor comprises at least one of aminotrimethylene phosphonic acid, hydroxyethylene diphosphonic acid, ethylenediamine tetraacetic acid, polyacrylic acid, sodium polyacrylate.
In some preferred embodiments, the scale inhibitor comprises sodium polyacrylate, wherein the sodium polyacrylate is low molecular weight sodium polyacrylate, and the sodium polyacrylate has the effects of preventing harmful flocculation of solids, enabling a dispersion system to be in a stable state, reducing the sedimentation speed of limestone, reducing the scale blockage of equipment, changing the characteristics of calcium sulfate crystals, promoting the increase of the amorphous degree of the surface of calcium carbonate and the increase of the surface area under the dispersion and lattice distortion effects of strong anion active groups of the low molecular weight sodium polyacrylate, thereby improving the reaction efficiency. The low molecular weight sodium polyacrylate is sodium polyacrylate with a weight average molecular weight of less than 10000, and in some preferred embodiments, the low molecular weight sodium polyacrylate is exemplified by low molecular weight sodium polyacrylate available from Chun-an Bolus Biotechnology Co., ltd. Model XMDF-2000 or XMDF-4000.
The second aspect of the application provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: the method is characterized by comprising the following steps of: mixing the preparation raw materials according to the formula amount, and stirring until the mixture is completely and uniformly mixed to obtain the finished product.
The present application will be specifically described below by way of examples. It is noted herein that the following examples are given solely for the purpose of further illustration and are not to be construed as limitations on the scope of the application, as will be apparent to those skilled in the art in light of the foregoing disclosure.
In addition, the raw materials used are commercially available unless otherwise indicated.
Examples
Example 1
The embodiment 1 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise, by weight, 70% of organic acid, 28% of organic acid salt, 2% of oxidation catalyst and 2% of scale inhibitor.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
The embodiment 1 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Example 2
The embodiment 2 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of organic acid salt, 3% of oxidation catalyst, 2% of surfactant and 2% of scale inhibitor in percentage by weight.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
The embodiment 2 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Example 3
The embodiment 3 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise, by weight, 60% of organic acid, 30% of organic acid salt, 5% of oxidation catalyst, 3% of surfactant and 2% of scale inhibitor.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
Embodiment 3 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Example 4
The embodiment 4 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of organic acid salt, 3% of oxidation catalyst, 2% of surfactant and 2% of scale inhibitor in percentage by weight.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is a mixture of low molecular sodium polyacrylate and polyacrylic acid, and the weight ratio is 3:1; the low molecular sodium polyacrylate is purchased from Chun's batting media Biotechnology Co., ltd, model XMDF-4000.
The embodiment 4 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Example 5
The embodiment 5 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of organic acid salt, 3% of oxidation catalyst, 2% of surfactant and 2% of scale inhibitor in percentage by weight.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is prepared by mixing sodium adipate, sodium succinate and sodium citrate in a weight ratio of 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and tetrabutylammonium chloride, and the weight ratio is 1:1.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
The embodiment 5 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Example 6
The embodiment 6 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of organic acid salt and 3% of oxidation catalyst by weight percent. 2% of surfactant and 2% of scale inhibitor.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is dodecyl sulfobetaine.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
The embodiment 6 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Comparative example 1
The comparative example 1 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of organic acid salt, 3% of oxidation catalyst, 2% of surfactant and 2% of scale inhibitor by weight percent.
The organic acid is adipic acid;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
Comparative example 1 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Comparative example 2
Comparative example 2 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise, by weight, 30% of organic acid, 55% of organic acid salt, 5% of oxidation catalyst, 5% of surfactant and 5% of scale inhibitor.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
Comparative example 2 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Comparative example 3
Comparative example 3 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of organic acid salt, 5% of oxidation catalyst and 2% of surfactant by weight.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is a mixture of sodium adipate, sodium succinate and sodium acetate, and the weight ratio is 2:1:1.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
Comparative example 3 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Comparative example 4
Comparative example 4 provides a synergist with high desulfurization efficiency and obvious energy-saving effect, and the preparation raw materials comprise 68% of organic acid, 25% of inorganic salt, 3% of oxidation catalyst, 2% of surfactant and 2% of scale inhibitor by weight percent.
The organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the inorganic salt is NaCl, na 2 SO 4 Is 1:2 by weight.
The oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1. The trichloro powder was purchased from atanan de blue chemical company limited.
The surfactant is sodium dodecyl benzene sulfonate.
The scale inhibitor is low molecular sodium polyacrylate, and is purchased from Chun' an batting media biotechnology Co., ltd, and the model is XMDF-4000.
Comparative example 4 also provides a preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
Performance testing
1. Test of the synergist on the lime stone dissolution-assisting test:
(1) Putting medium speed quantitative filter paper into a drying oven, gradually heating to 105 ℃, drying for 3 hours, taking out, putting into a dryer, cooling to room temperature, and weighing until the constant weight (m 1 ) (accurate to 0.0002 g).
(2) 300mL of water is respectively injected into the high-neck beaker, the required concentration is selected, and the synergist is added.
(3) 5 g of limestone is added into a high-neck beaker respectively, and the mixture is stirred on a program-controlled coagulation test stirrer for 1.5 hours, and the rotating speed is set to 150 revolutions per minute.
(4) After the stirring was completed, the mixture was allowed to stand for 1 hour, filtered by the medium-speed quantitative filter paper having a constant weight obtained in the step (1), and all the precipitate adhering to the wall of the beaker was transferred to the filter paper and washed five times with pure water. The filtrate was kept ready for use and the wash was discarded.
(5) Putting the medium-speed quantitative filter paper in the step (4) into a drying box, gradually heating to 105 ℃, drying for 3 hours, taking out, putting into a dryer, cooling to room temperature, and weighing until the constant weight (m 2 ) (accurate to 0.0002 g).
(6) The calcium ion concentration in the filtrate in the step (4) was measured by referring to GB/T15452-2009 EDTA titration method. The concentration of calcium ions in the filtrate reflects the solubility of limestone in water.
The synergists prepared in examples 1-6 and comparative examples 1-4 were tested for their effect on the solubility of limestone according to the methods described above, with the addition of the synergists being 500ppm,1000ppm,1500ppm, respectively. A blank group was additionally provided, in which no desulfurization enhancer was added, and the test results are shown in table 1.
2. And (3) testing the desulfurization rate of the synergist:
the synergist is applied to the sulfur dioxide at 2000mg/m 3 In the desulfurization system (10% fluctuation range), the synergist was added at a concentration ratio of 1500ppm. Continuously measuring import and export SO 2 The desulfurization efficiency before and after the addition of the synergist was calculated, and the test results are shown in table 2.
TABLE 1
TABLE 2
The foregoing examples are illustrative only and serve to explain some features of the method of the application. The appended claims are intended to claim the broadest possible scope and the embodiments presented herein are merely illustrative of selected implementations based on combinations of all possible embodiments. It is, therefore, not the intention of the applicant that the appended claims be limited by the choice of examples illustrating the features of the application. Some numerical ranges used in the claims also include sub-ranges within which variations in these ranges should also be construed as being covered by the appended claims where possible.
Claims (1)
1. A synergistic agent with high desulfurization efficiency and obvious energy-saving effect is characterized in that: the preparation raw materials comprise 68 weight percent of organic acid, 25 weight percent of organic acid salt, 3 weight percent of oxidation catalyst, 2 weight percent of surfactant and 2 weight percent of scale inhibitor;
the organic acid is a mixture of adipic acid and citric acid, and the weight ratio is 4:1, a step of;
the organic acid salt is prepared by mixing sodium adipate, sodium succinate and sodium acetate in a weight ratio of 2:1:1;
the oxidation catalyst is a mixture of manganese sulfate and trichloro powder, and the weight ratio is 1:1;
the surfactant is sodium dodecyl benzene sulfonate;
the scale inhibitor is a mixture of low molecular sodium polyacrylate and polyacrylic acid, and the weight ratio is 3:1;
the preparation method of the synergist with high desulfurization efficiency and obvious energy-saving effect comprises the following steps: mixing the preparation raw materials according to the formula amount, and stirring at a rotating speed of 300r/min for 30min until the preparation raw materials are completely and uniformly mixed.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036545A (en) * | 1988-01-15 | 1989-10-25 | 切夫尔昂研究公司 | Hydrogen sulfide composition for separating and method |
| CN101244360A (en) * | 2007-11-26 | 2008-08-20 | 中电投远达环保工程有限公司 | Catalytic oxidation technique for calcium sulfite |
| CN101947410A (en) * | 2010-09-28 | 2011-01-19 | 浙江天达环保股份有限公司 | Active activator of limestone powder |
| CN102380301A (en) * | 2011-08-15 | 2012-03-21 | 西安热工研究院有限公司 | Limestone-plaster wet method flue gas desulfurization composite synergistic agent |
| CN102580514A (en) * | 2012-02-29 | 2012-07-18 | 济宁新格瑞水处理有限公司 | Additive for strengthening wet flue gas desulfurization technology |
| CN102807288A (en) * | 2012-07-13 | 2012-12-05 | 湖北海力化工科技有限公司 | Scale inhibitor for limestone wet-process desulphurization and preparation method thereof |
| CN102974209A (en) * | 2012-07-13 | 2013-03-20 | 湖北海力化工科技有限公司 | Desulfurization synergist having scale inhibition performance, and preparation method thereof |
| CN103386243A (en) * | 2012-05-07 | 2013-11-13 | 湖南晟通科技集团有限公司 | Synergist for wet method flue gas desulphurization |
| CN103432894A (en) * | 2013-08-30 | 2013-12-11 | 杨子江 | Synergist for assisting wet-process desulphurization of thermal power plant, and application method of synergist |
| CN104645816A (en) * | 2015-01-28 | 2015-05-27 | 上海水平衡环境科技发展有限公司 | Wet desulphurization synergist |
| CN105384262A (en) * | 2015-10-29 | 2016-03-09 | 华电电力科学研究院 | Special scale inhibitor for wet desulfurization system |
| CN107138030A (en) * | 2017-06-08 | 2017-09-08 | 北京可林维尔化工有限公司 | Wet desulfurization system synergy scale inhibition heavy metals removal agent and preparation method thereof |
| CN108126497A (en) * | 2017-12-28 | 2018-06-08 | 徐州润华环保科技有限公司 | Effect agent and its preparation method and application is proposed for the flue gas desulfurization of wet desulfurization system |
| CN111569634A (en) * | 2020-05-21 | 2020-08-25 | 河北丰强科技有限公司 | Catalytic synergist for desulfurization, denitrification and foam inhibition of coal-fired flue gas and use method thereof |
| CN112044244A (en) * | 2020-09-21 | 2020-12-08 | 中海油天津化工研究设计院有限公司 | Additive for limestone-gypsum wet desulphurization of industrial flue gas |
-
2021
- 2021-05-26 CN CN202110578570.9A patent/CN114788987B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036545A (en) * | 1988-01-15 | 1989-10-25 | 切夫尔昂研究公司 | Hydrogen sulfide composition for separating and method |
| CN101244360A (en) * | 2007-11-26 | 2008-08-20 | 中电投远达环保工程有限公司 | Catalytic oxidation technique for calcium sulfite |
| CN101947410A (en) * | 2010-09-28 | 2011-01-19 | 浙江天达环保股份有限公司 | Active activator of limestone powder |
| CN102380301A (en) * | 2011-08-15 | 2012-03-21 | 西安热工研究院有限公司 | Limestone-plaster wet method flue gas desulfurization composite synergistic agent |
| CN102580514A (en) * | 2012-02-29 | 2012-07-18 | 济宁新格瑞水处理有限公司 | Additive for strengthening wet flue gas desulfurization technology |
| CN103386243A (en) * | 2012-05-07 | 2013-11-13 | 湖南晟通科技集团有限公司 | Synergist for wet method flue gas desulphurization |
| CN102974209A (en) * | 2012-07-13 | 2013-03-20 | 湖北海力化工科技有限公司 | Desulfurization synergist having scale inhibition performance, and preparation method thereof |
| CN102807288A (en) * | 2012-07-13 | 2012-12-05 | 湖北海力化工科技有限公司 | Scale inhibitor for limestone wet-process desulphurization and preparation method thereof |
| CN103432894A (en) * | 2013-08-30 | 2013-12-11 | 杨子江 | Synergist for assisting wet-process desulphurization of thermal power plant, and application method of synergist |
| CN104645816A (en) * | 2015-01-28 | 2015-05-27 | 上海水平衡环境科技发展有限公司 | Wet desulphurization synergist |
| CN105384262A (en) * | 2015-10-29 | 2016-03-09 | 华电电力科学研究院 | Special scale inhibitor for wet desulfurization system |
| CN107138030A (en) * | 2017-06-08 | 2017-09-08 | 北京可林维尔化工有限公司 | Wet desulfurization system synergy scale inhibition heavy metals removal agent and preparation method thereof |
| CN108126497A (en) * | 2017-12-28 | 2018-06-08 | 徐州润华环保科技有限公司 | Effect agent and its preparation method and application is proposed for the flue gas desulfurization of wet desulfurization system |
| CN111569634A (en) * | 2020-05-21 | 2020-08-25 | 河北丰强科技有限公司 | Catalytic synergist for desulfurization, denitrification and foam inhibition of coal-fired flue gas and use method thereof |
| CN112044244A (en) * | 2020-09-21 | 2020-12-08 | 中海油天津化工研究设计院有限公司 | Additive for limestone-gypsum wet desulphurization of industrial flue gas |
Non-Patent Citations (2)
| Title |
|---|
| 有机酸添加剂强化石灰石湿法烟气脱硫过程的实验研究;韩玉霞;王乃光;李鑫;刘启旺;;动力工程;第27卷(第02期);第278-281页 * |
| 陈开勋.精细化工产品化学及应用.西北大学出版社,1995,第101-14页. * |
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