CN105195153A - Method for preparing desulfurization catalysts from peanut shells - Google Patents
Method for preparing desulfurization catalysts from peanut shells Download PDFInfo
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- CN105195153A CN105195153A CN201510626107.1A CN201510626107A CN105195153A CN 105195153 A CN105195153 A CN 105195153A CN 201510626107 A CN201510626107 A CN 201510626107A CN 105195153 A CN105195153 A CN 105195153A
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- 235000017060 Arachis glabrata Nutrition 0.000 title claims abstract description 56
- 235000010777 Arachis hypogaea Nutrition 0.000 title claims abstract description 56
- 235000018262 Arachis monticola Nutrition 0.000 title claims abstract description 56
- 235000020232 peanut Nutrition 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000003054 catalyst Substances 0.000 title claims abstract description 25
- 241001553178 Arachis glabrata Species 0.000 title claims abstract 15
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 15
- 230000023556 desulfurization Effects 0.000 title abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 42
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 10
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 8
- 238000002791 soaking Methods 0.000 claims abstract description 8
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 claims abstract description 8
- ITCAUAYQCALGGV-XTICBAGASA-M sodium;(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound [Na+].C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O ITCAUAYQCALGGV-XTICBAGASA-M 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 36
- 239000000706 filtrate Substances 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 18
- 239000001257 hydrogen Substances 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 6
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- -1 accordingly Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 239000000383 hazardous chemical Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 244000105624 Arachis hypogaea Species 0.000 description 41
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 239000003546 flue gas Substances 0.000 description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 235000001508 sulfur Nutrition 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 210000000481 breast Anatomy 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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- 231100000572 poisoning Toxicity 0.000 description 2
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- 238000001694 spray drying Methods 0.000 description 2
- 206010001052 Acute respiratory distress syndrome Diseases 0.000 description 1
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- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 208000013616 Respiratory Distress Syndrome Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
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- 230000004913 activation Effects 0.000 description 1
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- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
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- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention discloses a method for preparing desulfurization catalysts from peanut shells, and belongs to the field of preparation of catalysts. The method includes soaking the peanut shells in sodium hydroxide; removing partial impurities from the peanut shells; enlarging pores of the peanut shells by the aid of sodium abietate, sodium chromate and the like; preliminarily modifying the peanut shells; carbonizing the peanut shells; mixing and stirring the carbonized peanut shells with substances such as blast furnace slag powder, sulfuric acid solution and nickel nitrate solution to obtain mixtures; modifying the mixtures in a deepened manner to obtain the desulfurization catalysts. As proved by examples, the method has the advantages that the desulfurization catalysts prepared by the aid of the method are made of the peanut shells which are raw materials, accordingly, waste can be utilized, the operating cost can be lowered, the method is simple and feasible in operation during use, environmental hazards can be prevented in operation procedures, and the desulfurization rate can reach 88.5% at least.
Description
Technical field
The invention discloses a kind of method utilizing peanut shell to prepare desulphurization catalyst, belong to field of catalyst preparation.
Background technology
Desulfurization refers to and to remove in industrial gasses contained harmful sulfidic material, mainly hydrogen sulfide, also have the organic sulfurs such as carbon disulfide, carbonyl sulfide, mercaptan, thioether in addition.
Peanut is the main oil crops of China, and its total output and export volume all occupy first place in the world, and China's peanut gross annual output amount reaches about 1,500 ten thousand tons, accounts for 40% of Peanut total output, about can produce 5,000,000 tons of peanut shells every year.The chemical composition of peanut shell is relatively stable, and typical percent mass consists of: crude fibre 63.27%, lignin 34.21%, ash content 3.17%, containing a small amount of starch, protein etc.Peanut shell porosity is large, structure is comparatively loose, density is little, matter is crisp, toughness is poor, with the active carbon that can obtain good adsorption performance after steam activation, the content of peanut shell lignin is far above timber and wheat straw, and current peanut shell may be used for waste water treating agent, active carbon, packaging material, animal feeding-stuff premix, edible mushroom or flowers culture medium, veterinary additive carrier etc.
Along with people are to the pay attention to day by day of environmental protection, environmental regulation is also day by day strict, and the sulfur content reducing gasoline and diesel oil is considered to one of most important measure improving air quality, because the sulphur in fuel can produce adverse influence to the performance of vehicle catalytic converter, it is irreversibly poisoning that the sulfur oxide existed in automobile engine tail gas can suppress the noble metal catalyst in converter also can make it generation, the gas of discharging from poor efficiency or poisoning converter contains unburned non-methane hydrocarbon and nitrogen oxide and carbon monoxide, through hydrophilic dye, these component reaction form ground level ozone, more often become " smog ".In addition, according to the rules, the original discharge concentration of the sulfur dioxide in flue gas is lower than 650mg/Nm
3, and requiring that sulfur dioxide in flue gas content after treatment must lower than 110mg/Nm3, dust must lower than 50mg/Nm3.
At present, spray drying process, flue gas circulating fluidized bed method and Sea water respiratory distress syndrome is mainly contained about the method reducing sulfur content, first spray drying process refers to lime to be desulfurization absorbent, lime makes calcium hydroxide breast through digesting and adding water, calcium hydroxide breast squeezes into by pump the atomising device being positioned at absorption tower, in absorption tower, the absorbent being atomized into fine drop mixes with flue gas and contacts, with the SO in flue gas
2there is chemical reaction and generate CaSO
3, the SO in flue gas
2be removed, but the method desulfuration efficiency is lower, Long-Time Service can make the easy dust stratification of device, produces corrosion; The flue gas circulating fluidized bed method of next refers to the part compositions such as agent preparation, absorption tower, Desulphurization recirculation, deduster and control system.This technique generally adopts the slaked lime powder of dry state as absorbent, other also can be adopted to have the dry powder of absorption reaction ability or slurries as absorbent to sulfur dioxide, but the method requires high for lime quality and grain diameter, operation more complicated; Last seawater desulfurizing process is a kind of sulfur method utilizing the basicity of seawater to reach to remove sulfur dioxide in flue gas, but during the method process, cost compare is high, may produce pollute in operating process to environment.
Summary of the invention
The technical problem that the present invention mainly solves: for Sulfur Dioxide On Human in current vehicle exhaust and environmental hazard very big, and although traditional sulfur method can reduce sulfur content, but it is lower still to there is desulfuration efficiency, operation cost is higher, and in operating process, understand the problem of indirect pollution environment, provide a kind of method utilizing peanut shell to prepare desulphurization catalyst, first the method utilizes soaking with sodium hydroxide peanut shell, remove partial impurities, add sodium abietate again, sodium chromates etc. carry out expandable pores to peanut shell, and preliminary modification, then it is carbonized, by the peanut shell after charing and blast furnace slag powder, sulfuric acid solution, the materials such as nickel nitrate solution carry out mix and blend, in-depth modification, desulphurization catalyst can be obtained.The desulphurization catalyst that the present invention obtains utilizes peanut shell for raw material, achieves twice laid, reduces operation cost, and in use, not only operation is simple, and be safe from harm for environment in operating process, makes desulfurization degree reach more than 88.5%.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) get peanut shell clear water to clean, put into container, add wherein mass fraction be 5 ~ 10% sodium hydroxide solution flood peanut shell 4 ~ 5cm, add the sodium abietate of peanut shell quality 0.1 ~ 0.3% more respectively, the sodium chromate of peanut shell quality 0.1 ~ 0.3% and the methyl diethanolamine of sodium hydroxide solution volume 20 ~ 30%, agitating heating 1 ~ 2h, temperature is set as 80 ~ 90 DEG C, and speed setting is 300 ~ 450r/min;
(2) after above-mentioned heating terminates, filter while hot, the peanut shell of gained is put into extruder and is squeezed into block, then put it into 1 ~ 3h in retort, temperature is set as 700 ~ 800 DEG C, after charing terminates, charing block is cooled to room temperature, puts into pulverizer, be ground into 90 ~ 110 order particles;
(3) particle of above-mentioned gained is put into container, again respectively to 100 ~ 110 height of eye slag powder of the zinc calcine and granular mass 10 ~ 15% that wherein add granular mass 10 ~ 15%, stir, then the sulfuric acid solution immersion mixture of 0.2 ~ 0.4mol/L is used, being placed in frequency is under the environment of 800 ~ 900MHz, agitating heating 40 ~ 45min, temperature is set as 65 ~ 75 DEG C;
(4) after above-mentioned agitating heating terminates, be cooled to room temperature, filter after leaving standstill 1 ~ 2h, the filtrate of gained is put into container, add the soaking in sodium carbonate solution filtrate that mass fraction is 50 ~ 55% wherein, then be the nickel nitrate solution of 3% and the absolute ethyl alcohol of sodium carbonate liquor volume 70 ~ 80% respectively to the mass fraction wherein adding sodium carbonate liquor volume 10 ~ 15%, temperature is set as 55 ~ 60 DEG C, filter after agitating heating 2 ~ 3h, collect filtrate;
(5) filtrate of above-mentioned gained is put into reactor, use hydrogen wherein to discharge by air, be warming up to 300 ~ 400 DEG C, stir after 4 ~ 7h, discharge hydrogen, coldly go to room temperature, collection filtrate is put into pulverizer and is ground into 100 ~ 110 order particles, can obtain desulphurization catalyst.
Application process of the present invention is: get 5 ~ 10g desulphurization catalyst that the present invention obtains and put into automobile exhaust pipe screen pack, start running car 15 ~ 25min, detect the gas of discharging in automobile exhaust pipe afterwards with detector, result display sulfur dioxide in flue gas content is from 120 ~ 130mg/Nm
3be reduced to 5 ~ 15mg/Nm
3, make desulfurization degree reach more than 88.5%.
The invention has the beneficial effects as follows:
(1) desulphurization catalyst that the present invention obtains utilizes peanut shell for raw material, achieves twice laid, reduces operation cost;
(2) desulphurization catalyst that obtains of the present invention in use, and not only operation is simple, and be safe from harm for environment in operating process, makes desulfurization degree reach more than 88.5%.
Detailed description of the invention
First get peanut shell clear water to clean, put into container, add wherein mass fraction be 5 ~ 10% sodium hydroxide solution flood peanut shell 4 ~ 5cm, add the sodium abietate of peanut shell quality 0.1 ~ 0.3% more respectively, the sodium chromate of peanut shell quality 0.1 ~ 0.3% and the methyl diethanolamine of sodium hydroxide solution volume 20 ~ 30%, agitating heating 1 ~ 2h, temperature is set as 80 ~ 90 DEG C, and speed setting is 300 ~ 450r/min; Then after above-mentioned heating terminates, filter while hot, the peanut shell of gained is put into extruder and is squeezed into block, then put it into 1 ~ 3h in retort, temperature is set as 700 ~ 800 DEG C, after charing terminates, charing block is cooled to room temperature, puts into pulverizer, be ground into 90 ~ 110 order particles; Afterwards the particle of above-mentioned gained is put into container, again respectively to 100 ~ 110 height of eye slag powder of the zinc calcine and granular mass 10 ~ 15% that wherein add granular mass 10 ~ 15%, stir, then the sulfuric acid solution immersion mixture of 0.2 ~ 0.4mol/L is used, being placed in frequency is under the environment of 800 ~ 900MHz, agitating heating 40 ~ 45min, temperature is set as 65 ~ 75 DEG C; Subsequently after above-mentioned agitating heating terminates, be cooled to room temperature, filter after leaving standstill 1 ~ 2h, the filtrate of gained is put into container, add the soaking in sodium carbonate solution filtrate that mass fraction is 50 ~ 55% wherein, then be the nickel nitrate solution of 3% and the absolute ethyl alcohol of sodium carbonate liquor volume 70 ~ 80% respectively to the mass fraction wherein adding sodium carbonate liquor volume 10 ~ 15%, temperature is set as 55 ~ 60 DEG C, filter after agitating heating 2 ~ 3h, collect filtrate; Finally the filtrate of above-mentioned gained is put into reactor, use hydrogen wherein to discharge by air, be warming up to 300 ~ 400 DEG C, stir after 4 ~ 7h, discharge hydrogen, coldly go to room temperature, collection filtrate is put into pulverizer and is ground into 100 ~ 110 order particles, can obtain desulphurization catalyst.
Example 1
First get peanut shell clear water to clean, put into container, add wherein mass fraction be 5% sodium hydroxide solution flood peanut shell 4cm, add the sodium abietate of peanut shell quality 0.1% more respectively, the sodium chromate of peanut shell quality 0.1% and the methyl diethanolamine of sodium hydroxide solution volume 20%, agitating heating 1h, temperature is set as 80 DEG C, and speed setting is 300r/min; Then after above-mentioned heating terminates, filter while hot, the peanut shell of gained is put into extruder and is squeezed into block, then put it into 1h in retort, temperature is set as 700 DEG C, after charing terminates, charing block is cooled to room temperature, puts into pulverizer, be ground into 90 order particles; Afterwards the particle of above-mentioned gained is put into container, again respectively to 100 height of eye slag powder of the zinc calcine and granular mass 10% that wherein add granular mass 10%, stir, then the sulfuric acid solution immersion mixture of 0.2mol/L is used, being placed in frequency is under the environment of 800MHz, agitating heating 40min, temperature is set as 65 DEG C; Subsequently after above-mentioned agitating heating terminates, be cooled to room temperature, filter after leaving standstill 1h, the filtrate of gained is put into container, add the soaking in sodium carbonate solution filtrate that mass fraction is 50% wherein, then be the nickel nitrate solution of 3% and the absolute ethyl alcohol of sodium carbonate liquor volume 70% respectively to the mass fraction wherein adding sodium carbonate liquor volume 10%, temperature is set as 55 DEG C, filter after agitating heating 2h, collect filtrate; Finally the filtrate of above-mentioned gained is put into reactor, use hydrogen wherein to discharge by air, be warming up to 300 DEG C, stir after 4h, discharge hydrogen, coldly go to room temperature, collect filtrate and put into pulverizer and be ground into 100 order particles, can desulphurization catalyst be obtained.
This case method is unique novel, get the 5g desulphurization catalyst that the present invention obtains during operation and put into automobile exhaust pipe screen pack, start running car 15min, detect the gas of discharging in automobile exhaust pipe afterwards with detector, result display sulfur dioxide in flue gas content is from 130mg/Nm
3be reduced to 15mg/Nm
3, make desulfurization degree reach 88.5%.
Example 2
First get peanut shell clear water to clean, put into container, add wherein mass fraction be 8% sodium hydroxide solution flood peanut shell 4.5cm, add the sodium abietate of peanut shell quality 0.2% more respectively, the sodium chromate of peanut shell quality 0.2% and the methyl diethanolamine of sodium hydroxide solution volume 25%, agitating heating 1.5h, temperature is set as 85 DEG C, and speed setting is 400r/min; Then after above-mentioned heating terminates, filter while hot, the peanut shell of gained is put into extruder and is squeezed into block, then put it into 2h in retort, temperature is set as 750 DEG C, after charing terminates, charing block is cooled to room temperature, puts into pulverizer, be ground into 100 order particles; Afterwards the particle of above-mentioned gained is put into container, again respectively to 105 height of eye slag powder of the zinc calcine and granular mass 13% that wherein add granular mass 13%, stir, then the sulfuric acid solution immersion mixture of 0.3mol/L is used, being placed in frequency is under the environment of 850MHz, agitating heating 43min, temperature is set as 70 DEG C; Subsequently after above-mentioned agitating heating terminates, be cooled to room temperature, filter after leaving standstill 1.5h, the filtrate of gained is put into container, add the soaking in sodium carbonate solution filtrate that mass fraction is 53% wherein, then be the nickel nitrate solution of 3% and the absolute ethyl alcohol of sodium carbonate liquor volume 75% respectively to the mass fraction wherein adding sodium carbonate liquor volume 12%, temperature is set as 58 DEG C, filter after agitating heating 2.5h, collect filtrate; Finally the filtrate of above-mentioned gained is put into reactor, use hydrogen wherein to discharge by air, be warming up to 350 DEG C, stir after 5h, discharge hydrogen, coldly go to room temperature, collect filtrate and put into pulverizer and be ground into 105 order particles, can desulphurization catalyst be obtained.
This case method is unique novel, get the 8g desulphurization catalyst that the present invention obtains during operation and put into automobile exhaust pipe screen pack, start running car 20min, detect the gas of discharging in automobile exhaust pipe afterwards with detector, result display sulfur dioxide in flue gas content is from 125mg/Nm
3be reduced to 10mg/Nm
3, make desulfurization degree reach 92%.
Example 3
First get peanut shell clear water to clean, put into container, add wherein mass fraction be 10% sodium hydroxide solution flood peanut shell 5cm, add the sodium abietate of peanut shell quality 0.3% more respectively, the sodium chromate of peanut shell quality 0.3% and the methyl diethanolamine of sodium hydroxide solution volume 30%, agitating heating 2h, temperature is set as 90 DEG C, and speed setting is 450r/min; Then after above-mentioned heating terminates, filter while hot, the peanut shell of gained is put into extruder and is squeezed into block, then put it into 3h in retort, temperature is set as 800 DEG C, after charing terminates, charing block is cooled to room temperature, puts into pulverizer, be ground into 110 order particles; Afterwards the particle of above-mentioned gained is put into container, again respectively to 110 height of eye slag powder of the zinc calcine and granular mass 15% that wherein add granular mass 15%, stir, then the sulfuric acid solution immersion mixture of 0.4mol/L is used, being placed in frequency is under the environment of 900MHz, agitating heating 45min, temperature is set as 75 DEG C; Subsequently after above-mentioned agitating heating terminates, be cooled to room temperature, filter after leaving standstill 2h, the filtrate of gained is put into container, add the soaking in sodium carbonate solution filtrate that mass fraction is 55% wherein, then be the nickel nitrate solution of 3% and the absolute ethyl alcohol of sodium carbonate liquor volume 80% respectively to the mass fraction wherein adding sodium carbonate liquor volume 15%, temperature is set as 60 DEG C, filter after agitating heating 3h, collect filtrate; Finally the filtrate of above-mentioned gained is put into reactor, use hydrogen wherein to discharge by air, be warming up to 400 DEG C, stir after 7h, discharge hydrogen, coldly go to room temperature, collect filtrate and put into pulverizer and be ground into 110 order particles, can desulphurization catalyst be obtained.
This case method is unique novel, get the 10g desulphurization catalyst that the present invention obtains during operation and put into automobile exhaust pipe screen pack, start running car 25min, detect the gas of discharging in automobile exhaust pipe afterwards with detector, result display sulfur dioxide in flue gas content is from 120mg/Nm
3be reduced to 5mg/Nm
3, make desulfurization degree reach 95.8%.
Claims (1)
1. utilize peanut shell to prepare a method for desulphurization catalyst, it is characterized in that concrete preparation process is:
(1) get peanut shell clear water to clean, put into container, add wherein mass fraction be 5 ~ 10% sodium hydroxide solution flood peanut shell 4 ~ 5cm, add the sodium abietate of peanut shell quality 0.1 ~ 0.3% more respectively, the sodium chromate of peanut shell quality 0.1 ~ 0.3% and the methyl diethanolamine of sodium hydroxide solution volume 20 ~ 30%, agitating heating 1 ~ 2h, temperature is set as 80 ~ 90 DEG C, and speed setting is 300 ~ 450r/min;
(2) after above-mentioned heating terminates, filter while hot, the peanut shell of gained is put into extruder and is squeezed into block, then put it into 1 ~ 3h in retort, temperature is set as 700 ~ 800 DEG C, after charing terminates, charing block is cooled to room temperature, puts into pulverizer, be ground into 90 ~ 110 order particles;
(3) particle of above-mentioned gained is put into container, again respectively to 100 ~ 110 height of eye slag powder of the zinc calcine and granular mass 10 ~ 15% that wherein add granular mass 10 ~ 15%, stir, then the sulfuric acid solution immersion mixture of 0.2 ~ 0.4mol/L is used, being placed in frequency is under the environment of 800 ~ 900MHz, agitating heating 40 ~ 45min, temperature is set as 65 ~ 75 DEG C;
(4) after above-mentioned agitating heating terminates, be cooled to room temperature, filter after leaving standstill 1 ~ 2h, the filtrate of gained is put into container, add the soaking in sodium carbonate solution filtrate that mass fraction is 50 ~ 55% wherein, then be the nickel nitrate solution of 3% and the absolute ethyl alcohol of sodium carbonate liquor volume 70 ~ 80% respectively to the mass fraction wherein adding sodium carbonate liquor volume 10 ~ 15%, temperature is set as 55 ~ 60 DEG C, filter after agitating heating 2 ~ 3h, collect filtrate;
(5) filtrate of above-mentioned gained is put into reactor, use hydrogen wherein to discharge by air, be warming up to 300 ~ 400 DEG C, stir after 4 ~ 7h, discharge hydrogen, coldly go to room temperature, collection filtrate is put into pulverizer and is ground into 100 ~ 110 order particles, can obtain desulphurization catalyst.
Priority Applications (1)
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116730339A (en) * | 2023-06-28 | 2023-09-12 | 广东健态实业有限公司 | Novel wood columnar activated carbon harmless preparation equipment and process thereof |
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| US6537947B1 (en) * | 1997-04-11 | 2003-03-25 | The United States Of America As Represented By The Secretary Of Agriculture | Activated carbons from low-density agricultural waste |
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| CN1765489A (en) * | 2004-10-29 | 2006-05-03 | 中国石油化工股份有限公司 | Supported type active carbon and its preparation method |
| CN101590395A (en) * | 2008-05-29 | 2009-12-02 | 北京三聚环保新材料股份有限公司 | A kind of preparation method of load-type desulfurizer |
| EP2333032A1 (en) * | 2009-12-09 | 2011-06-15 | ENI S.p.A. | Hydrocarbon compostion useful as fuel or combustilbe |
| CN102357364A (en) * | 2011-09-05 | 2012-02-22 | 青岛科技大学 | Preparation of activated carbon-based catalyst used for selective reduction desulphurization of flue gas |
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| US6537947B1 (en) * | 1997-04-11 | 2003-03-25 | The United States Of America As Represented By The Secretary Of Agriculture | Activated carbons from low-density agricultural waste |
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| CN1765489A (en) * | 2004-10-29 | 2006-05-03 | 中国石油化工股份有限公司 | Supported type active carbon and its preparation method |
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| EP2333032A1 (en) * | 2009-12-09 | 2011-06-15 | ENI S.p.A. | Hydrocarbon compostion useful as fuel or combustilbe |
| CN102357364A (en) * | 2011-09-05 | 2012-02-22 | 青岛科技大学 | Preparation of activated carbon-based catalyst used for selective reduction desulphurization of flue gas |
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| CN116730339A (en) * | 2023-06-28 | 2023-09-12 | 广东健态实业有限公司 | Novel wood columnar activated carbon harmless preparation equipment and process thereof |
| CN116730339B (en) * | 2023-06-28 | 2024-01-23 | 广东健态实业有限公司 | Novel wood columnar activated carbon harmless preparation equipment and process thereof |
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| CN105195153B (en) | 2017-12-12 |
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