CN102744039A - Preparation method for clay-containing porous and active ammonia storage mixture - Google Patents
Preparation method for clay-containing porous and active ammonia storage mixture Download PDFInfo
- Publication number
- CN102744039A CN102744039A CN2012102388239A CN201210238823A CN102744039A CN 102744039 A CN102744039 A CN 102744039A CN 2012102388239 A CN2012102388239 A CN 2012102388239A CN 201210238823 A CN201210238823 A CN 201210238823A CN 102744039 A CN102744039 A CN 102744039A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- tank body
- active
- mixture
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a preparation method for a clay-containing porous and active ammonia storage mixture. The preparation method characterized by comprising the following steps of: using the powder of industrial and anhydrous calcium chloride salt, doping proper clay, active carbon, deionized water and industrial alcohol, mechanically stirring into a semi-dried uniformly-mixed wet material, filling the semi-dried uniformly-mixed wet material in a tank body, and preparing into an integrated porous solid block, wherein ammonia transmission pore passages in the solid block are abundant. The active mixture is macroscopically provided with a plurality of large pores, is fast in ammonia filling speed and good ammonia storage performance, can be used for rapidly releasing ammonia, can be recycled without breakage, has an efficient adsorption and desorption characteristic, is suitable for adsorption and storage for ammonia, is used for an SCR (selective catalytic reduction) system and an FCEV (fuel cell electric vehicle) system, and meets the future application needs of the automobile industry.
Description
Technical field
The present invention relates to a kind of porous active storage ammonia active mixture preparation that contains clay, particularly be applied to the SCR after-treatment system and the FCEV fuel cell system of vehicle exhaust.
Background technology
Current, the whole world faces the comprehensive challenge of the energy and environment, and aspect the technological means selection of the emission compliance of orthodox car, and the fuel of new-energy automobile is supplied with the technical elements people and still faced many difficult problems.
The SCR after-treatment system is to rely on the accurate supply of carbamide reducing agent and after the front end of catalyst resolves into ammonia, remove the NOX hazardous material, reaches the purpose of cleaning of off-gas, realizes state 4 or above standard up to standard of vehicle; But; In actual use, this dependence urea decomposition becomes the metered injection of the liquid area of ammonia to have many deficiencies and difficult point, for example; Urea liquid is icing blocking problem under-11 ℃ of environment, needs extra pipeline heating system to solve; Urea liquid could decompose under the temperature environment more than 135 ℃, and many vehicles of public transit system loiter, and can't reach urea liquid stable decomposition temperature at all; Can't the output ammonia, can't eliminate predetermined NOX composition, cause the accumulation of liquid area in blast pipe at last; Produce the polymer of melamine, stop up the urea nozzle and the exhaust pipe of engine, cause vehicles produces fault; Influence is normal to be used, in addition, if the main flow vehicle of state more than 4 uses the SCR system comprehensively; Relate to the whole nation about 150,000 oiling websites innovation and build the problem of liquid area filling infrastructure; Because investment is huge, do not see still that at present government and enterprise start to improve this infrastructure, become a potential huge problem in the SCR use;
For breaking through energy predicament, solve the new-energy automobile development problem of future source of energy problem, hydrogen fuel cell is a very important techniques route by generally acknowledging; But how stable acquisition hydrogen is originated is a no small difficult problem of restriction this area development, in institute's possible adopted hydrogen source mode; Technology path and the hydrogeneous presoma decomposition of other H-N or the technology path of cracking hydrogen production that the technology path of gas cylinder storage hydrogen, the technology path that water electrolysis hydrogen production is arranged, the technology path that high-purity hydro carbons petroleum fuel cracking hydrogen production is arranged, low mass molecule alcohol class cracking hydrogen production are arranged; In the above-mentioned technology path, all there are some problem and shortage, for example; 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;
One of them is the hydrogeneous compound of H-N for the presoma of hydrogen, and wherein, what hydrogen-storage density was the highest is ammonia.Ammonia is a kind of modal industrial chemicals, and the ammonia molecule belongs to active polar molecule, and the diameter dimension of molecule is about 3 ~ 4A, therefore, very active under the normal temperature, very easily diffusion, and have toxic; The skin histology that its toxic is embodied in contact all has corrosion and spread effect, can absorb the moisture in the skin histology, makes the histone sex change, and makes the tissue fat saponification, destroys membrane structure; Ammonia in water solubility high, stimulate and corrosiveness so mainly the upper respiratory tract of animal or human's body is had, often be attracted on mucocutaneous and the eye conjunctiva; Stimulate and inflammation thereby produce, in addition, ammonia sucks human body with gas form usually; Ammonia gets into blood through alveolar after being inhaled into lung easily, combines with hemoglobin, destroys fortune oxygen function; Get into IA ammonia; Few part is neutralized by carbon dioxide, and remainder is absorbed into blood, suck in a short time can occur shedding tears behind a large amount of ammonias, pharyngalgia, cough, uncomfortable in chest, expiratory dyspnea, dizziness, vomiting, weak etc.; If the long-term ammonia that sucks is too much, cause ammonia excessive concentration in the blood, will cause heart stop fight and breath stopped threat to life safety; Therefore, the maximum hidden danger of the use of ammonia is safety problem.
This shows, resolve in the use of ammonia storing and safety problem, just can open up the technology path of a new ammonia utilization.
Traditional ammonia storing mode is a 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 the commercial Application in enormous quantities, if, have serious etching problem again with the mode of high concentrated ammonia liquor.
At China national patent information net; With the storage ammonia word and search that is the theme; The patent No. is that CN201120099229.7's ' a kind of urotropine by using gas phase method tail gas ammonia recovery unit ', the patent No. is that ' be used for freezer machine room join ammonia bindiny mechanism ' of CN201020677361.7, ' complex function type storage ammonia device ', the patent No. that the patent No. is CN201020269811.9 are CN200520057558.X ' a kind of ammonia steaming device '; Be one type the ammonia nitrogen industrial wastewater carried out the environment protection treating device that ammonia nitrogen is got rid of processing, also do not relate to the characteristic component among the present invention.Uncorrelated with the present invention;
Number of patent application is that CN201010244091.5's ' be used for method and system that the work of SCR catalyst is tested ' and number of patent application is that this 2 inventions of CN200880104697.X ' operation method of SCR exhaust after treatment system and diagnostic method ' provide a kind of SCR (SCR) catalytic converter and traditional liquid ureaclastic ammonia dispensing module and control system of being used for, and does not relate to the characteristic component of compound;
Number of patent application is that CN200910197860.8's the invention of ' a kind of preparation method of efficient low-temperature ammonia-storing material ' is applied to the SCR after-treatment system; Characteristic is to place closed container to the amino borane compound; Vacuumize, under 0-4 ℃ of temperature, contact with ammonia; Under 0-4 ℃ of temperature, kept 30-60 minute, prepare required product amino borane ammino-complex NH
3BH
3(NH
3) n (n=1-3); The maximum storage of room temperature ammonia amount can reach 62.4wt.%; About room temperature supply gas pressure 2.0bar; Room temperature supplies ammonia pressure moderate, inhales to put the ammonia completely reversibility, but the costing an arm and a leg of the extraordinary material amino borane of this patent; Have higher explosion danger and burning grade, be not suitable for applying in enormous quantities of general industry field;
Number of patent application is that CN200580026626.9's the invention of ' storage and carry the solid material of ammonia ' relates to storage and carries the solid material of ammonia.The solid material of this storage ammonia comprises that a kind of ammonia absorbs salt, and wherein this ammonia absorption salt is that general formula is M
a(NH
3)
nX
zIonic salt; Wherein M is selected from for example one or more cations of Mn, Fe, Co, Ni, Cu and/or Zn of alkaline-earth metal and/or one or more transition metal, and X is one or more anion, and a is the cation number that comprises in each molecules of salt; Z is the anion number that comprises in each molecules of salt; N is 2～12 ligancy, and wherein M is Mg, and it is auto industry that this ammonia absorbs salt provides a kind of safety, lightweight, cheap and fine and close storage with ammonia.This patent is the direct compression molding of solid material, and ammonia is resolved in the electric heating heating, more lays particular emphasis on the control strategy of system, does not relate to the modification and the optimization of mixture;
The patent No. be CN200580009219.7's ' purposes of ammonia storage device in energy production ' invention relate to a kind of generator unit, this unit comprises the ammonia storage device of (i) container (2) form, comprising general formula is M
a(NH
3)
NXzAmmonia absorb and discharge salt; Wherein M is one or more cations, is selected from alkali metal, alkaline-earth metal and transition metal such as Li, K, Mg, Ca, V, Cr, Mn, Fe, Co, Ni, Cu or Zn, and 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; A is the cation number of each molecules of salt, and z is the anion number of each molecules of salt, and n is the ligancy of 2-12; (ii) being used to heat said container (2) and ammonia absorbs and discharges the fuel cell that salt with the device (3a) that discharges ammonia and (iiia) is used for ammonia is converted into electrical power; Perhaps (iiib1) is used for ammonia is dissociated into the reactor (6) of hydrogen and nitrogen; (iiib2) be used for hydrogen is converted into the fuel cell (4) of electrical power; This patent is mainly used in fuel cell; Mentioned property material in the claim 4 and be such salt or be positioned on the porous carrier materials, which kind of material statement is not;
The disclosure of the Invention of CN200710156866.1 ' a kind of amido complex compound ' a kind of amido complex compound.The composition of this amido complex compound is MX
m(NH
3)
n, M is one or more among Li, Mg, Al, Ca, Sc, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Ba, the Sn in the formula; X is F, Cl, Br, NO
3, SO
4In one or more; M decides according to chemical valence, 1≤m≤5; N decides according to ligancy, 1≤n≤15.With the absorbent of the amido complex compound behind the deamination, put separation, purification, storage and the transportation that ammonia is realized ammonia through low temperature suction ammonia, high temperature as ammonia.This patent only relates to the preparation technology and the process of this amido complex compound itself;
Number of patent application is solid ammonia storage and the conveying material that CN200680005886.2's the high density of the ammonia ' storage ' patent comprises ammonia absorptions/desorb solid material; The said density that has been compacted to is greater than 50% storage of theoretical skeletal density with carry material that the solid ammonia storage medium is provided; The storage ammonia that this storage medium prepares and handles and have very high-density easily; Said storage ammonia discharges under controlled condition easily; Even the porosity of said material is very low still like this, and this storage medium does not need special safety measure for storage with to carry ammonia be safe.This patent is to adopt the direct compression molding of solid material; Adopt binding agent; Only stated it possibly is the silicon dioxide fibre binding agent, do not had the dosage ratio, the solid material of also only stating among other claim item and the embodiment possibly comprise granular materials, porous material, crystalline material, amorphous materials or their bond composition; Do not have thin of clear and definite claim, industry technology personage almost can't implement.Produced the present invention therefrom.
Summary of the invention
The object of the present invention is to provide the preparation of a kind of porous active storage ammonia active mixture, the hole that it has improved storage ammonia active material solid block effectively increases the ammonia transmission channel, weaken or avoid adsorbing repeatedly with desorption process in CaCl
2The caking that takes place and the efflorescence of solid block are broken, and that has satisfied industrial occasions repeatedly recycles requirement.
Technical scheme of the present invention is achieved in that the preparation of a kind of porous active storage ammonia active mixture; It is characterized in that concrete preparation method is following: be the powder of 45 ~ 92 parts industrial anhydrous calcium chloride salt by mass fraction; Mix 1 ~ 15 part industrial ball clay, 2 ~ 8 parts of active carbons; With 3 ~ 17 parts deionized water and 2 ~ 15 parts industrial alcohol, mechanical agitation becomes uniform mixture wet feed, is filled in the tank body; Addition is no more than 80% of tank body volume, and machinery concussion 5 ~ 10min eliminates the air gap; Whole tank body is put in the vacuum drying oven, and normal pressure is slowly heating down, and temperature is controlled at 65 ~ 160 ℃; Get rid of water and ethanol to mixture constant weight; Substep is evacuated to 550mbar, and constant temperature and pressure 0.5 ~ 3h takes out tank body; The sealing charge door is processed the whole porosu solid piece of the storage ammonia active mixture that contains clay; Under 0.05 ~ 0.8MPa pressure, charge into ammonia in tank body, saturated to the mixture absorbing ammonia.
The clay particle diameter of described industrial ball clay is less than 2um, and disperse becomes suspension in water.
Described active carbon pore size distribution range at 2 ~ 50nm, specific surface greater than 800m
2/ g.
Described tank body is the withstand voltage tank body of stainless steel, inner tank wall thermal spraying nylon heat-insulation layer.
Good effect of the present invention is the abundant activity storage ammonia mixture in ammonia transmission duct that contains clay; Guaranteeing under the constant prerequisite of storage ammonia active material characteristic that the phenomenon that the clay of interpolation and active carbon weaken or the ammonia adsorption-desorption of having avoided caking, the fragmentation etc. to cause attaches has been improved the richness of microscopic void; Increased the quantity of macroscopic pores; Improve the mechanical strength of mixture solid piece, had very high practical value, be suitable for the SCR post processing or the FCEV system of automobile industry.By means of mechanical agitation and CaC1
2Reach other fillers and fully mix, at CaC1
2Bridging between the particle, dry back forms higher " the integrated solid piece " of mechanical strength, can weaken effectively or avoid adsorbing with desorption process in the expansion of solid block to shrink the efflorescence that causes broken; The diffusing CaC1 of water that adds and dissolve with ethanol and differential
2And other fillers, improve between the liquid-solid two-phase wetting with sprawl, in addition, water and ethanol are deviate from the hole of process formation, have enriched the transmission channel of ammonia; The active carbon that adds has promoted CaC1
2Dispersion; Can weaken or avoid the generation of caking phenomenon effectively, improve the richness of microscopic void, increase the transmission channel of ammonia; Improve the permeance property of ammonia greatly; Promote the formation of ammino calcium chloride complex compound, the loose structure of active carbon itself possesses certain absorption and memory function to ammonia simultaneously; The active carbon pore size distribution range of here selecting at 2 ~ 50nm, specific surface greater than 800m
2/ g; In order to guarantee security under elevated pressures.
Description of drawings
The thermogravimetric curve figure of the active mixture of the absorbing ammonia of Fig. 1 embodiment of the invention 1.
The specific embodiment
Through embodiment the present invention is further described below, embodiment is not equal to restriction the present invention for further illustrating characteristics of the present invention,, all should be included within protection scope of the present invention according to the change that the present invention carries out for those skilled in the art.
Embodiment 1
Press the water of mass fraction with 71 parts calcium chloride, 3 parts of active carbons, 6 parts of clays and 12 parts; In homogenizer, mix 1h, add 8 parts of ethanol, continue mechanical agitation 3h; Process uniform mixture wet feed; Be filled in the tank body, be added into 80% of tank body volume, machinery concussion 10min eliminates the air gap;
Whole tank body is put in the vacuum drying oven, and the heating rate with 2 ℃/min under the normal pressure as shown in Figure 1 rises to 120 ℃, constant temperature 6h; Get rid of water and ethanol, substep is evacuated to 550mbar, constant temperature and pressure 1h; Take out tank body, the sealing charge door is processed the whole porosu solid piece of storage ammonia active mixture.
Embodiment 2
Water with 2 parts of active carbons, 15 parts of clays and 15 parts mixes 1h in homogenizer, add 58 parts calcium chloride mixing 1h; Add 10 parts of ethanol; Continue mechanical agitation 3h, process uniform mixture wet feed, be filled in the tank body; Be added into 75% of tank body volume, machinery concussion 10min eliminates the air gap;
Whole tank body is put in the vacuum drying oven, and the heating rate with 2 ℃/min under the normal pressure rises to 120 ℃, constant temperature 6h; Get rid of water and ethanol, substep is evacuated to 550mbar, constant temperature and pressure 1h; Take out tank body, the sealing charge door is processed the whole porosu solid piece of storage ammonia active mixture.
Embodiment 3
Water with 5 parts of clays and 6 parts mixes 1h in homogenizer, add 80 parts calcium chloride mixing 1h; Add 3 parts of active carbon mixing 1h, add 6 parts of ethanol, continue mechanical agitation 3h; Process uniform mixture wet feed; Be filled in the tank body, be added into 80% of tank body volume, machinery concussion 10min eliminates the air gap;
Whole tank body is put in the vacuum drying oven, and the heating rate with 5 ℃/min under the normal pressure rises to 100 ℃, constant temperature 8h; Get rid of water and ethanol, substep is evacuated to 550mbar, constant temperature and pressure 2h; Take out tank body, the sealing charge door is processed the whole porosu solid piece of storage ammonia active mixture.
Embodiment 4
The tank body that the storage ammonia active mixture of accomplishing for embodiment 1 installs additional adopts high-purity industrial ammonia bottle through subsequent use pipe valve, in the outlet pressure scope of 0.4Mpa slowly fill ammonia, filling the ammonia time is 3h, fill ammonia before and after the tank body quality increase by 38%;
The tank body that completion is filled behind the ammonia is connected with automobile SCR system, and under the situation of ammonia leakage rate less than 10ppm, quality reduces 33% before and after the test tank body desorption.
Embodiment 5
The tank body that the storage ammonia active mixture of accomplishing for embodiment 2 installs additional adopts high-purity industrial ammonia bottle through subsequent use pipe valve, in the outlet pressure scope of 0.2Mpa slowly fill ammonia, filling the ammonia time is 6h, fill ammonia before and after the tank body quality increase by 33%;
The tank body that completion is filled behind the ammonia is connected with automobile SCR system, and under the situation of ammonia leakage rate less than 10ppm, quality reduces 30% before and after the test tank body desorption.
Embodiment 6
The tank body that the storage ammonia active mixture of accomplishing for embodiment 3 installs additional adopts high-purity industrial ammonia bottle through subsequent use pipe valve, in the outlet pressure scope of 0.5Mpa slowly fill ammonia, filling the ammonia time is 5h, fill ammonia before and after the tank body quality increase by 40%;
The tank body that completion is filled behind the ammonia is connected with automobile SCR system, and under the situation of ammonia leakage rate less than 10ppm, quality reduces 36% before and after the test tank body desorption.
Claims (4)
1. porous active storage ammonia active mixture preparation that contains clay; It is characterized in that the preparation method is following: by mass fraction is the powder of 45 ~ 92 parts industrial anhydrous calcium chloride salt, mixes 1 ~ 15 part industrial ball clay, 2 ~ 8 parts of active carbons, with 3 ~ 17 parts deionized water and 2 ~ 15 parts industrial alcohol; Mechanical agitation becomes uniform mixture wet feed; Be filled in the tank body, addition is no more than 80% of tank body volume, and machinery concussion 5 ~ 10min eliminates the air gap; Whole tank body is put in the vacuum drying oven, and normal pressure is slowly heating down, and temperature is controlled at 65 ~ 160 ℃; Get rid of water and ethanol to mixture constant weight; Substep is evacuated to 550mbar, and constant temperature and pressure 0.5 ~ 3h takes out tank body; The sealing charge door is processed the whole porosu solid piece of the storage ammonia active mixture that contains clay; Under 0.05 ~ 0.8MPa pressure, in tank body, charge into ammonia, saturated to the mixture absorbing ammonia.
2. a kind of porous active storage ammonia active mixture preparation that contains clay according to claim 1 is characterized in that described industrial ball clay particle diameter less than 2um, and disperse becomes suspension in water.
3. a kind of porous active storage ammonia active mixture preparation that contains clay according to claim 1, it is characterized in that described active carbon pore size distribution range at 2 ~ 50nm, specific surface greater than 800m
2/ g.
4. the storage ammonia active mixture that contains clay according to claim 1 is characterized in that described tank body is the withstand voltage tank body of stainless steel, inner tank wall thermal spraying nylon heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238823.9A CN102744039B (en) | 2012-07-11 | 2012-07-11 | A kind of porous active storage ammonia active mixture preparation containing clay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238823.9A CN102744039B (en) | 2012-07-11 | 2012-07-11 | A kind of porous active storage ammonia active mixture preparation containing clay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744039A true CN102744039A (en) | 2012-10-24 |
| CN102744039B CN102744039B (en) | 2015-09-16 |
Family
ID=47024736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210238823.9A Active CN102744039B (en) | 2012-07-11 | 2012-07-11 | A kind of porous active storage ammonia active mixture preparation containing clay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102744039B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069875A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for waste gas of circulating ammonia water pool of coking plant |
| CN113069874A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for VOCs in chemical production area of coking plant |
| CN116617806A (en) * | 2023-05-23 | 2023-08-22 | 迁安市宏奥工贸有限公司 | Method for treating waste gas of coking plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 CN201210238823.9A patent/CN102744039B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 朱洪法等: "《催化剂制备及应用技术》", 30 June 2011, article "黏合剂", pages: 248 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069875A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for waste gas of circulating ammonia water pool of coking plant |
| CN113069874A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for VOCs in chemical production area of coking plant |
| CN116617806A (en) * | 2023-05-23 | 2023-08-22 | 迁安市宏奥工贸有限公司 | Method for treating waste gas of coking plant |
| CN116617806B (en) * | 2023-05-23 | 2023-11-03 | 迁安市宏奥工贸有限公司 | Method for treating waste gas of coking plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744039B (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102744039B (en) | A kind of porous active storage ammonia active mixture preparation containing clay | |
| CN102744038B (en) | A kind of high-efficiency multiple activity containing magnesium salts stores up ammonia active mixture and preparation | |
| CN102730716B (en) | A kind of porous active storage ammonia mixture preparation containing molecular sieve | |
| CN102728318B (en) | A kind of porous active mixture preparation can storing ammonia fast | |
| CN102728316B (en) | A kind of storage ammonia mixture of magnesium salts and preparation | |
| CN102728314B (en) | A kind of jumbo porous active storage ammonia active mixture and preparation | |
| CN102728312B (en) | A kind of porous active storage ammonia active mixture preparation containing Ludox | |
| CN102728308B (en) | A kind of porous active storage ammonia active mixture preparation containing carbon fiber | |
| CN102728319B (en) | A kind of porous active storage ammonia active mixture preparation containing expanded graphite | |
| CN102728315B (en) | A kind of porous active storage ammonia active mixture preparation containing active carbon | |
| CN102731054B (en) | Storage ammonia mixture porosu solid sample block containing molecular sieve and preparation method thereof | |
| CN102728306B (en) | The preparation of a kind of porous active storage ammonia active mixture | |
| CN102728305B (en) | A kind of preparation of the storage ammonia active mixture containing Ludox | |
| CN102728303B (en) | A kind of porous active storage ammonia active mixture of magnesium salts and preparation | |
| CN102730715B (en) | A kind of storage ammonia activated mixture and preparation | |
| CN102728302A (en) | Preparation of efficient porous active ammonia-storage active mixture | |
| CN102730714B (en) | A kind of activity storage ammonia activated mixture of magnesium salts and preparation | |
| CN102728307B (en) | Containing the mixture solid sample block and preparation method thereof of ceramic fibre and Ludox | |
| CN102744032B (en) | A kind of porous storage ammonia active mixture solid-like block and preparation method thereof | |
| CN102716714B (en) | Storage ammonia active mixture porosu solid sample block containing Ludox and preparation method thereof | |
| CN102728317B (en) | Storage ammonia mixture porosu solid sample block containing activated carbon and preparation method thereof | |
| CN102728304B (en) | Containing the storage ammonia active mixture porosu solid sample block and preparation method thereof of industrial clay | |
| CN203395570U (en) | Inner insulating structure of solid ammonia storage system | |
| CN103537257B (en) | Storage ammonia active mixture sample piece that a kind of duct is abundant and preparation method thereof | |
| CN102744037B (en) | Porous storage ammonia mixture sample block containing carbon fiber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |