CN102728307B - Containing the mixture solid sample block and preparation method thereof of ceramic fibre and Ludox - Google Patents
Containing the mixture solid sample block and preparation method thereof of ceramic fibre and Ludox Download PDFInfo
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- CN102728307B CN102728307B CN201210238838.5A CN201210238838A CN102728307B CN 102728307 B CN102728307 B CN 102728307B CN 201210238838 A CN201210238838 A CN 201210238838A CN 102728307 B CN102728307 B CN 102728307B
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- 239000000203 mixture Substances 0.000 title claims abstract description 39
- 239000007787 solid Substances 0.000 title claims abstract description 25
- 239000000835 fiber Substances 0.000 title claims abstract description 20
- 239000000919 ceramic Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 12
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005660 chlorination reaction Methods 0.000 claims abstract description 6
- 159000000003 magnesium salts Chemical class 0.000 claims abstract description 6
- 230000010358 mechanical oscillation Effects 0.000 claims abstract description 6
- 239000011812 mixed powder Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000004567 concrete Substances 0.000 claims abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 155
- 229910021529 ammonia Inorganic materials 0.000 abstract description 78
- 238000003860 storage Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 8
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 238000011049 filling Methods 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000011343 solid material Substances 0.000 description 7
- 239000004202 carbamide Substances 0.000 description 6
- 235000013877 carbamide Nutrition 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 125000003368 amide group Chemical group 0.000 description 5
- 238000003795 desorption Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- -1 amino borane compound Chemical class 0.000 description 2
- TVJORGWKNPGCDW-UHFFFAOYSA-N aminoboron Chemical compound N[B] TVJORGWKNPGCDW-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000009615 deamination Effects 0.000 description 1
- 238000006481 deamination reaction Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to a kind of mixture solid sample block containing ceramic fibre and Ludox, be made up of anhydrous magnesium chloride, ceramic fibre and industry silicasol, it is characterized in that its preparation method, concrete steps are as follows: by weight percentage, by anhydrous for industry chlorination magnesium salts powder 50 ~ 80wt%, ceramic fibre 5 ~ 10wt%, industry silicasol 3 ~ 8wt% and industrial alcohol 10 ~ 37wt% composition mixture; Stirred by mixer, mixing time is 1 ~ 10h, forms the mixed powder of semi-drying; This powder adds one to can carry out mechanical oscillation 30 ~ 60min in the closed container of open type, then at 60 ~ 80 DEG C, vacuum is 10
-1dry 2 ~ 3h under the condition of ~ 1Kpa, or at the temperature of 70 ~ 100 DEG C dry 2 ~ 4h.Its preparation storage ammonia active mixture porosu solid sample block has superpower adsorption capacity, and Stability Analysis of Structures, mechanical strength is higher, in the process of preparation storage ammonia active mixture porosu solid sample block, also added appropriate industry silicasol, effectively improve viscosity and the specific area of mixture sample block.
Description
Technical field
The present invention relates to a kind of mixture solid sample block containing ceramic fibre and Ludox and preparation method thereof, be applied to SCR aftertreatment system and the FCEV fuel cell system of vehicle exhaust.
background technology:
Current, the whole world faces the integration challenges of the energy and environment.In the technological means selection of the emission compliance of orthodox car, and the fuel supply technical elements people of new-energy automobile still face many difficult problems.
SCR aftertreatment system relies on the accurate supply of carbamide reducing agent and resolves into ammonia De NO X hazardous material afterwards in the front end of catalyst, reaches the object of cleaning of off-gas, the standard of state 4 realizing vehicle or more up to standard.But in actual use, this dependence urea decomposition becomes the metered injection of the liquid area of ammonia to there is many deficiencies and difficult point, such as, the problem of urea liquid icing blocking under-11 DEG C of environment, needs extra pipeline heating system to solve; Could decompose under the temperature environment of urea liquid more than 135 DEG C, and many vehicles of public transit system loiter, urea liquid stable decomposition temperature cannot be reached at all, cannot output ammonia, predetermined NOX composition cannot be eliminated, finally cause the accumulation of liquid area in blast pipe, produce the polymer of melamine, blocking urea nozzle and the exhaust pipe of engine, cause vehicle to produce fault, impact uses normally.In addition, if the main flow vehicle of state more than 4 uses SCR system comprehensively, relate to the problem of about 150,000, whole nation oiling website Innovation Construction liquid area filling infrastructure, huge owing to investing, still do not see that Government and enterprise starts to improve this infrastructure at present, become SCR use in a potential huge problem.
For breakthrough energy dilemmas, solve the new-energy automobile development problem of future source of energy problem, it is a very important technology path that hydrogen fuel cell is recognized.But how stable acquisition hydrogen source is a no small difficult problem for restriction this area development.Likely in adopted hydrogen source mode, have gas cylinder store up hydrogen technology path, have the technology path of water electrolysis hydrogen production, have the technology path of high-purity hydrocarbon petroleum fuels cracking hydrogen production, the hydrogeneous presoma of the technology path of low molecule alcohols cracking hydrogen production and other H-N decomposes or the technology path of cracking hydrogen production.In above-mentioned technology path, all there is some problem and deficiency, such as, hydrogen production efficiency and cost, hydrogen manufacturing precision and speed, also comprise the problem of system aspects.In a word, the source of hydrogen is the bottleneck of fuel-cell vehicle development, needs people's idea to solve.
The presoma of hydrogen one of them be the hydrogeneous compound of H-N, wherein, what hydrogen-storage density was the highest is ammonia.Ammonia is a kind of modal industrial chemicals, and ammonia molecule belongs to active polar molecule, and the diameter dimension of molecule is about 3 ~ 4, and therefore, very active under normal temperature, very easily spread, and have toxic, therefore, the maximum hidden danger of the use of ammonia is safety problem.
As can be seen here, resolve in the use of ammonia and store and safety problem, just can open up the technology path of a new ammonia utilization.Traditional ammonia storing mode is gas cylinder, or realizes with the water-soluble formation ammoniacal liquor of high concentration ammonia.If adopt gas cylinder to store ammonia, there is the potential safety hazard of operating aspect and seal aspect in commercial Application in enormous quantities, if in the mode of high concentrated ammonia liquor, there is again serious etching problem.
In national patent Information Network, with " storage ammonia ", be the theme word and search, ' composite functional ammonia storage device ' that the patent No. is ' a kind of Urotropine tail gas ammonia recovery device with gas phase method ' of CN201120099229.7, the patent No. is CN201020677361.7 ' the Pei An bindiny mechanism for machine room of refrigerated warehouse ', the patent No. are CN201020269811.9, the patent No. are ' a kind of ammonia steaming device ' of CN200520057558.X, be that a class carries out to ammonia nitrogen industrial wastewater the environment protection treating device that ammonia nitrogen gets rid of process, also do not relate to the characteristic component in the present invention.Uncorrelated with the present invention.
These 2 inventions of the patent No. to be ' method and system for testing to the work of SCR catalyst ' of CN201010244091.5 and the patent No. be ' operation method of SCR exhaust after treatment system and the diagnostic method ' of CN200880104697.X provide a kind of for SCR (SCR) catalytic converter and traditional liquid ureaclastic ammonia dispensing module and control system, do not relate to the characteristic component of compound.
The patent No. is that the invention of ' a kind of preparation method of efficient low-temperature ammonia-storing material ' of CN200910197860.8 is applied to SCR aftertreatment system, feature is that amino borane compound is placed in closed container, vacuumize, at 0 ~ 4 DEG C of temperature, contact with ammonia, at 0 ~ 4 DEG C of temperature, keep 30 ~ 60min, prepare required product amino borane ammino-complex NH
3bH
3(NH
3) n (n=1 ~ 3); The maximum storage ammonia amount of room temperature can reach 62.4wt.%, room temperature supply gas pressure about 2.0bar, room temperature is moderate for ammonia pressure, ammonia completely reversibility is put in suction, but the extraordinary material amino borane of this patent is expensive, there is higher explosion danger and burning grade, be not suitable for applying in enormous quantities of general industry field;
The patent No. is that the invention of the solid material of delivering ammonia ' store and ' of CN200580026626.9 relates to and storing and the solid material of delivering ammonia.The solid material of this storage ammonia comprises a kind of ammonia and absorbs salt, and wherein this ammonia absorption salt is general formula is M
a(NH
3)
nx
zionic salt, this ammonia absorb salt be that auto industry ammonia provides a kind of safety, lightweight, cheap and fine and close storage.This patent is direct for solid material compression molding, and electric heating heating desorption ammonia, more lays particular emphasis on the control strategy of system, does not relate to modification and the optimization of mixture;
The patent No. is that ' purposes of ammonia storage device in energy production ' invention of CN200580009219.7 relates to a kind of generator unit, and this unit comprises the ammonia storage device of (i) container (2) form, and comprising general formula is M
a(NH
3)
nx
zammonia absorb with release salt, wherein M is one or more cations, be selected from alkali metal, alkaline-earth metal and transition metal as Li, K, Mg, Ca, V, Cr, Mn, Fe, Co, Ni, Cu or Zn, X is one or more anion, be selected from fluorine root, chlorine root, bromine root, iodine root, nitrate anion, thiocyanate radical, sulfate radical, molybdate, phosphate radical and chloranion, this patent is mainly used in fuel cell, refer to property material in claim 4 for such salt or be positioned on porous carrier materials, which kind of material statement is not.
A kind of amido complex compound of the disclosure of the invention of CN200710156866.1 ' a kind of amido complex compound and its production and use ' and its production and use.The composition of this amido complex compound is MX
m(NH
3)
n, using the amido complex compound after deamination as the absorbent of ammonia, inhale ammonia by low temperature, high temperature put ammonia and realize the separation of ammonia, purification, storage and transport.This patent only relates to preparation technology and the process of this amido complex compound itself.
The patent No. is that the solid ammonia that ' high-density city of ammonia ' patent of CN200680005886.2 comprises ammonia absorption/desorption solid material stores and conveying material, the described density that has been compacted to is greater than the storage of 50% of theoretic skeleton density and carries material to provide solid ammonia storage material, this storage medium is easily prepared and is processed and have the storage ammonia of very high-density, described storage ammonia easily discharges under controlled conditions, even if the porosity of described material is very low still like this, and this storage medium is safe for storage and delivering ammonia, does not need special safety measure.This patent adopts the direct compression molding of solid material, adopt binding agent, only stating may be silicon dioxide fibre binding agent, not dosage ratio, also only state that solid material may comprise granular materials, porous material, crystalline material, amorphous materials or their bond composition in other claim and embodiment, do not have the thin item of clear and definite claim, industry technology personage almost cannot implement.Create the present invention therefrom.
Summary of the invention
The object of this invention is to provide a kind of mixture solid sample block containing ceramic fibre and Ludox and preparation method thereof, its preparation storage ammonia active mixture porosu solid sample block has superpower adsorption capacity, and Stability Analysis of Structures, mechanical strength is higher, in the process of preparation storage ammonia active mixture porosu solid sample block, also added appropriate industry silicasol, effectively improve viscosity and the specific area of mixture sample block.
Technical scheme of the present invention is achieved in that the mixture solid sample block containing ceramic fibre and Ludox, be made up of anhydrous magnesium chloride, ceramic fibre and industry silicasol, it is characterized in that its preparation method, concrete steps are as follows: by weight percentage, by anhydrous for industry chlorination magnesium salts powder 50 ~ 80wt%, ceramic fibre 5 ~ 10wt%, industry silicasol 3 ~ 8wt% and industrial alcohol 10 ~ 37wt% composition mixture; Stirred by mixer, mixing time is 1 ~ 10h, forms the mixed powder of semi-drying; This powder adds one to can carry out mechanical oscillation 30 ~ 60min in the closed container of open type, then at 60 ~ 80 DEG C, vacuum is 10
-1dry 2 ~ 3h under the condition of ~ 1Kpa, or at the temperature of 70 ~ 100 DEG C dry 2 ~ 4h.
Good effect of the present invention is that its preparation storage ammonia active mixture porosu solid sample block has superpower adsorption capacity, and Stability Analysis of Structures, mechanical strength is higher, in the process of preparation storage ammonia active mixture porosu solid sample block, also added appropriate industry silicasol, effectively improve viscosity and the specific area of mixture sample block, make its SCR post processing being more suitable for automobile industry or FCEV system, prepared mixture porosu solid sample block concentrates to use, and meets the storage of Large Copacity ammonia and the instructions for use of release.
Accompanying drawing explanation
Fig. 1 is the thermogravimetric curve after the present invention stores up ammonia active mixture porosu solid sample block absorbing ammonia.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described:
embodiment 1
By the powder of anhydrous for industry chlorination magnesium salts, ceramic fibre, industry silicasol and industrial alcohol composition mixture, mix according to the ratio of weight ratio 50:5:8:37, stirred by mixer, mixing time is 1h, forms the mixed powder of semi-drying; This powder is added to one and can carry out mechanical oscillation 60min in the closed container of open type, then at 80 DEG C, vacuum be under the condition of 1Kpa dry 3h storage ammonia active mixture porosu solid sample block containing 7.9wt% ceramic fibre.
10g porosu solid sample block is carried out filling ammonia, carry out under the environment of gravity-flow ventilation, in advance the closed container of open type can put into the tank of the enough large cooling water of water yield, connect ammonia steel cylinder, by pressure-reducing valve and drying system, slowly carry out filling ammonia in the pressure limit of 1Mpa, filling the ammonia time is 3h; After filling ammonia, this sample block quality is 18.7g, i.e. absorbing ammonia 8.7g.And then sample block is heated at 400 DEG C, found that, after heating, sample block quality becomes 14g, and namely release ammonia 4.7g, desorption efficiency is 54%.As shown in Figure 1, as can be seen from the figure, mixture porosu solid sample block absorbing ammonia percentage by weight is about 25wt% to weight-loss curve after this porosu solid sample block absorbing ammonia, is worth consistent with theory weightlessness
.
embodiment 2
By the powder of anhydrous for industry chlorination magnesium salts, ceramic fibre, industry silicasol and industrial alcohol, composition mixture mixes according to the ratio of weight ratio 80:5:5:10, stirred by mixer, mixing time is 5h, forms the mixed powder of semi-drying; This powder is added to one and can carry out mechanical oscillation 60min in the closed container of open type, then at 60 DEG C, vacuum is 10
-1under the condition of Kpa dry 2h containing the storage ammonia active mixture porosu solid sample block of 6.2wt% ceramic fibre.
10g porosu solid sample block is carried out filling ammonia, carry out under the environment of gravity-flow ventilation, in advance the closed container of open type can put into the tank of the enough large cooling water of water yield, connect ammonia steel cylinder, by pressure-reducing valve and drying system, slowly carry out filling ammonia in the pressure limit of 0.9Mpa, filling the ammonia time is 5h; After filling ammonia, this sample block quality is 19.6g, i.e. absorbing ammonia 9.6g.And then sample block is heated at 400 DEG C, found that, after heating, sample block quality becomes 11.2g, and namely release ammonia 8.4g, desorption efficiency is 88%.
embodiment 3
The powder of anhydrous for industry chlorination magnesium salts, ceramic fibre, industry silicasol and industrial alcohol composition mixture are mixed according to the ratio of weight ratio 75:10:3:12, stirred by mixer, mixing time is 10h, forms the mixed powder of semi-drying; This powder is added to one and can carry out mechanical oscillation 30min in the closed container of open type, then at the temperature of 100 DEG C dry 4h, containing the storage ammonia active mixture porosu solid sample block of 11.3wt% ceramic fibre.
10g porosu solid sample block is carried out filling ammonia, carry out under the environment of gravity-flow ventilation, in advance the closed container of open type can put into the tank of the enough large cooling water of water yield, connect ammonia steel cylinder, by pressure-reducing valve and drying system, slowly carry out filling ammonia in the pressure limit of 0.7Mpa, filling the ammonia time is 5h; After filling ammonia, this sample block quality is 18.4g, i.e. absorbing ammonia 8.4g.And then sample block is heated at 400 DEG C, found that, after heating, sample block quality becomes 10.9g, and namely release ammonia 7.5g, desorption efficiency is 90%.
Claims (1)
1. contain the mixture solid sample block of ceramic fibre and Ludox, be made up of anhydrous magnesium chloride, ceramic fibre and industry silicasol, it is characterized in that its preparation method, concrete steps are as follows: by weight percentage, by anhydrous for industry chlorination magnesium salts powder 50 ~ 80wt%, ceramic fibre 5 ~ 10wt%, industry silicasol 3 ~ 8wt% and industrial alcohol 10 ~ 37wt% composition mixture; Stirred by mixer, mixing time is 1 ~ 10h, forms the mixed powder of semi-drying; This powder adds one to can carry out mechanical oscillation 30 ~ 60min in the closed container of open type, then at 60 ~ 80 DEG C, vacuum is 1 ~ 10
-1dry 2 ~ 3h under the condition of Kpa, or at the temperature of 70 ~ 100 DEG C dry 2 ~ 4h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238838.5A CN102728307B (en) | 2012-07-11 | 2012-07-11 | Containing the mixture solid sample block and preparation method thereof of ceramic fibre and Ludox |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238838.5A CN102728307B (en) | 2012-07-11 | 2012-07-11 | Containing the mixture solid sample block and preparation method thereof of ceramic fibre and Ludox |
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| Publication Number | Publication Date |
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| CN102728307A CN102728307A (en) | 2012-10-17 |
| CN102728307B true CN102728307B (en) | 2015-08-12 |
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| CN101319478A (en) * | 2008-07-02 | 2008-12-10 | 福建师范大学 | Preparation method and application of a composite paper-based material with functions of adsorbing and degrading organic matter |
| WO2011123309A1 (en) * | 2010-03-29 | 2011-10-06 | International Engine Intellectual Property Company, Llc | Ammonia dosing cartridge and method |
| EP2428490A1 (en) * | 2010-09-10 | 2012-03-14 | Aaqius & Aaqius S.A. | System for reducing the amount of NOx in the exhaust fumes of a motor vehicle |
-
2012
- 2012-07-11 CN CN201210238838.5A patent/CN102728307B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| CN1093794A (en) * | 1992-08-14 | 1994-10-19 | 罗基研究公司 | In order to obtain the improved method and apparatus of high reactivity |
| CN101128394A (en) * | 2005-02-03 | 2008-02-20 | 氨合物公司 | High Density Storage of Ammonia |
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