CN101081347A - Method for preparation of concave-convex bar methane desulfurizing dessicant - Google Patents
Method for preparation of concave-convex bar methane desulfurizing dessicant Download PDFInfo
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- CN101081347A CN101081347A CN 200710023811 CN200710023811A CN101081347A CN 101081347 A CN101081347 A CN 101081347A CN 200710023811 CN200710023811 CN 200710023811 CN 200710023811 A CN200710023811 A CN 200710023811A CN 101081347 A CN101081347 A CN 101081347A
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- concave
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- convex bar
- particle
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002699 waste material Substances 0.000 claims abstract description 20
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 13
- 239000010459 dolomite Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 20
- 238000005469 granulation Methods 0.000 claims description 12
- 230000003179 granulation Effects 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 238000006701 autoxidation reaction Methods 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 claims description 3
- 230000004151 fermentation Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 11
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 11
- 238000001035 drying Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 abstract description 3
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003034 coal gas Substances 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 3
- 239000002274 desiccant Substances 0.000 abstract 4
- 229960000892 attapulgite Drugs 0.000 abstract 2
- 229910052625 palygorskite Inorganic materials 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000005453 pelletization Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000736199 Paeonia Species 0.000 description 2
- 235000006484 Paeonia officinalis Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- -1 adds entry Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000010476 Respiratory Paralysis Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- GWZOLWLJEJRQMZ-UHFFFAOYSA-N [S].S Chemical compound [S].S GWZOLWLJEJRQMZ-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000189 neurotoxic Toxicity 0.000 description 1
- 230000002887 neurotoxic effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance 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
- 239000002023 wood Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention is process of preparing marsh gas desulfurizing desiccant of attapulgite. The preparation process includes the following steps: oxidizing treatment; compounding materials attapulgite, waste iron chips and dolomite; soaking and extruding; drying and grinding into powder; pelletizing and drying; roasting and sieving; and packing. When the marsh gas desulfurizing desiccant is used in treating marsh gas, the hydrogen sulfide in the marsh gas is reacted to produce iron sulfide and calcium sulfide and the water vapor is adsorbed by the desiccant. The preparation process has the features of simplicity, low cost and no pollution, and the desulfurizing desiccant is suitable for desulfurizing and drying marsh gas, natural gas and coal gas.
Description
Technical field:
The present invention relates to biogas, be specifically related to a kind of preparation method of concave-convex bar methane desulfurizing dessicant.
Background technology:
The main component of biogas has methane, carbon dioxide and hydrogen sulfide, also has a spot of ammonia, nitrogen, hydrogen and carbon monoxide etc.
Hydrogen sulfide in the biogas has the stench egg flavor, is strong neurotoxic substance, enters in the blood through respiratory system, can cause the whole body toxic reaction when having little time oxidation, along with the increase of concentration of hydrogen sulfide can cause respiratory paralysis, death by suffocation.The sulfur dioxide that sulfureted hydrogen burning generates is the very strong gas of a kind of corrosivity, enter atmosphere simultaneously and can produce " acid rain ", not only can be detrimental to health contaminated environment, and meeting accelerated corrosion stove and accessory, cooker, water heater and household electrical appliance, shorten its service life.
Often contain a certain amount of steam in the biogas, can stop up gas pipeline behind these water vapor condensations, in appendix, have condensed water to stop up, often flash when biogas stove and biogas lamp burning, cause flame suddenly big or suddenly small, light is flickering, influences the result of use of biogas.The area of weather cold, in every winter, the ponding in the appendix often stops up appendix because of freezing, and biogas can not be unimpeded.
For guaranteeing health, biogas stove, biogas lamp operate as normal and protection atmospheric environment, improve the especially burning quality of biogas water heater of combustion gas tool the service life of prolongation gas-fired equipment etc., biogas must carry out the dry processing of desulfurization dewatering.
Chinese patent publication number CN1121950, open day is on May 8th, 1996, name is called " dry shaping desulfurizing agent and preparation thereof and purposes ", discloses " a kind of dry shaping desulfurizing agent and its production and use.Main active component is natural iron ore, iron ore slag and zinc oxide in this desulfurizing agent, adds entry, pore creating material, binding agent etc. again, forms through mixing extrusion.It is low that it has a production cost, under normal temperature, normal pressure, removes hydrogen sulfide efficient height, and anti-carbon dioxide content advantages of higher can be widely used in removing the inorganic sulfur hydrogen sulfide in the combustible gases such as coal gas, water-gas, natural gas, biogas.”
Through repetition test, the weak point of above-mentioned patent be " dry shaping desulfurizing agent " though can reach the effect of desulfurization because selected pore creating material is lower except that the wood chip price, other cost of material is higher, is unfavorable for applying; Binding agent is selected " lime, sodium carbonate, dextrin, waterglass, starch " for use, when " mixing extrusion ", can play the effect of bonding, after 200～300 ℃ roasting, the intensity of dry shaping desulfurizing agent is lower, in use, the desulfurizing agent of cylinder strip is easy to generate powder, greatly reduces the service life of dry shaping desulfurizing agent, and dry shaping desulfurizing agent does not possess the function that dehydrates yet.
Summary of the invention:
The objective of the invention is to overcome weak point in the prior art, provide that a kind of production technology is simple, with low cost, the preparation method of desulfurizing and drying obvious results concave-convex bar methane desulfurizing dessicant.
The preparation method of concave-convex bar methane desulfurizing dessicant is: oxidation processes, batching are pulverized, are soaked extruding, airing abrasive dust, granulation airing, roasting screening, are packaged as finished product.The batching of concave-convex bar methane desulfurizing dessicant is made up of Concave-convex clay rod, waste iron filing and dolomite.
Concave-convex clay rod be a kind of tool chain layer structure contain Shuifu County's magnesium silicate clay mineral, the soil property exquisiteness, smooth surface, quality is lighter, is viscosity and plasticity when moist, its viscosity can reach more than the 3000mPas, helps the bonding between the raw material; Have unique crystal structure through the Concave-convex clay rod after the roasting, bigger specific area and absorption and water absorbing properties preferably, water absorption rate is greater than 85% of own wt, and immersion for a long time can disintegration in water.
The various iron filings that waste iron filing is meant in the metal cutting process to be produced, iron filings do not have great value except reclaiming melting again, factory is commonly referred to as waste iron filing, waste iron filing through after the oxidation processes with biogas in the hydrogen sulfide reaction generate iron sulfide.
The dolomite main component is CaMg (CO
3)
2, the specific area of natural dolomite is very little, and the specific area of baked dolomite and pore volume be much bigger than roasting dolomite not then, and this is because dolomite MgCO in roasting process
3And CaCO
3Decompose and discharge CO
2, make its inside form even, sparse pore structure, dolomite after roasting chemistry is active higher, has generated calcium sulfide with hydrogen sulfide reaction in the biogas.
The present invention is achieved by following technical proposals:
1, waste iron filing oxidation processes: waste iron filing is placed open-air, through exposing to wind and rain and after weather exposure carried out autoxidation, the surface of waste iron filing had produced a large amount of iron rust.
2, batching is pulverized: the batching of concave-convex bar methane desulfurizing dessicant, form by following component by weight percentage: Concave-convex clay rod 45～75%, waste iron filing 10～35% and dolomite 10～25%, mixture after the batching is pulverized, and the grain graininess after the pulverizing is controlled in 2 millimeters.
3, soak extruding: the particle after will pulverizing adds in the cement fermentation vat, soak after 1～3 day with clear water and to take out, new iron rust is continued to produce in the waste iron filing surface, Concave-convex clay rod is tiny particle through disintegration after the immersion of water, be bonded as one jointly with waste iron filing and dolomite, be transported to and carry out the extrusion modification processing in the extruder, the thickness of flap that squeezes out is controlled in 3 millimeters.
4, airing abrasive dust: tablet is transported to cement court carries out airing, water content in the tablet after the airing≤13% carries out abrasive dust in the tablet input grinding machine after the airing, and the pulverulent mixture grain graininess behind the abrasive dust is controlled in 0.074 millimeter.
5, granulation airing: pulverulent mixture imported carry out granulation in the comminutor, the particle after the granulation is spherical in shape, and grain graininess is controlled at 1.0～6.0 millimeters, and the particle transport after the granulation is carried out airing to cement court, water content in the particle after the airing≤13%.
6, roasting screening: will carry out roasting in the input of the particle after the airing roaster, sintering temperature is controlled at 600～700 ℃, roasting time was controlled at 1.5～3 hours, sieve after the roasting, the crushed particles and the powder that produce in the roasting process are screened out, be packaged as the finished product of concave-convex bar methane desulfurizing dessicant.
Concave-convex bar methane desulfurizing dessicant is a kind of peony spheric granules, and its surface light is not and sliding, and granule interior has a large amount of micropores.Concave-convex bar methane desulfurizing dessicant is placed in the methane-desulfurizing device, when the hydrogen sulfide in the biogas and other pernicious gas when concave-convex bar methane desulfurizing dessicant passes through, produce chemical reaction and physisorption, hydrogen sulfide in the biogas generates iron sulfide and calcium sulfide, steam is attracted to granule interior, reaches desulfurization and dry purpose.
Concave-convex bar methane desulfurizing dessicant in concave-convex rod marsh gas desulfurization and drying apparatus contacts for a long time with biogas, the micropore major part of its granule interior is lost activity by hydrogen sulfide and moisture content stop up, concave-convex bar methane desulfurizing dessicant is pitchy, the concave-convex bar methane desulfurizing dessicant that can regenerate and handle or more renew, the method that regeneration is handled is: concave-convex bar methane desulfurizing dessicant is taken out in desulfurizer, be placed on earlier and carry out oxidation in the atmosphere, use clear water that concave-convex bar methane desulfurizing dessicant is washed and dries then, when concave-convex bar methane desulfurizing dessicant transfers peony to by pitchy, can be reapposed over and continue in the desulfurizer to use, finish the regeneration technology process, can repeatedly recycle through the concave-convex bar methane desulfurizing dessicant after the regeneration.
Concave-convex bar methane desulfurizing dessicant granule strength height, 30 concave-convex bar methane desulfurizing dessicant, granule strength mean value reaches more than 80 newton, and good suction and water resistance are arranged, and being immersed in for a long time can disintegration in the water.
It is simple, with low cost and do not have a pollution characteristics that the preparation method of concave-convex bar methane desulfurizing dessicant has production technology, the concave-convex bar methane desulfurizing dessicant using method is easy, the desulfurizing and drying effect is remarkable, through can repeatedly recycling after the regeneration, helps applying.
The preparation method of concave-convex bar methane desulfurizing dessicant is applicable to the desulfurizing dessicant of producing biogas, natural gas and coal gas.
The specific embodiment:
Below in conjunction with embodiment, the invention will be further described:
1, waste iron filing oxidation processes: waste iron filing is placed open-air, through exposing to wind and rain and after weather exposure carried out autoxidation, the surface of waste iron filing had produced a large amount of iron rust.
2, batching is pulverized: the batching of concave-convex bar methane desulfurizing dessicant, form by following component by weight percentage: Concave-convex clay rod 55%, waste iron filing 25% and dolomite 20%, mixture after the batching is pulverized, and the grain graininess after the pulverizing is controlled in 2 millimeters.
3, soak extruding: the particle after will pulverizing adds in the cement fermentation vat, soak after 2 days with clear water and to take out, new iron rust is continued to produce in the waste iron filing surface, Concave-convex clay rod is tiny particle through disintegration after the immersion of water, be bonded as one jointly with waste iron filing and dolomite, be transported to and carry out the extrusion modification processing in the extruder, the thickness of flap that squeezes out is controlled in 3 millimeters.
4, airing abrasive dust: tablet is transported to cement court carries out airing, water content in the tablet after the airing≤13% carries out abrasive dust in the tablet input grinding machine after the airing, and the pulverulent mixture grain graininess behind the abrasive dust is controlled in 0.074 millimeter.
5, granulation airing: pulverulent mixture imported carry out granulation in the comminutor, the particle after the granulation is spherical in shape, and grain graininess is controlled at 3.0～6.0 millimeters, and the particle transport after the granulation is carried out airing to cement court, water content in the particle after the airing≤13%.
6, roasting screening: will carry out roasting in the input of the particle after the airing roaster, sintering temperature is controlled at 650～700 ℃, roasting time was controlled at 2.5～3 hours, sieve after the roasting, the crushed particles and the powder that produce in the roasting process are screened out, be packaged as the finished product of concave-convex bar methane desulfurizing dessicant.
Claims (1)
1, a kind of preparation method of concave-convex bar methane desulfurizing dessicant, it is characterized in that, the preparation method of concave-convex bar methane desulfurizing dessicant is: 1. waste iron filing is placed open-air, through exposing to wind and rain and after weather exposure carried out autoxidation, the surface of waste iron filing had produced a large amount of iron rust; 2. the batching of concave-convex bar methane desulfurizing dessicant, form by following component by weight percentage: Concave-convex clay rod 45～75%, waste iron filing 10～35% and dolomite 10～25%, mixture after the batching is pulverized, and the grain graininess after the pulverizing is controlled in 2 millimeters; 3. particle after will pulverizing adds in the cement fermentation vat, soaks with clear water and takes out after 1～3 day, is transported to carry out extrusion modification in the extruder and handle, and the thickness of flap that squeezes out is controlled in 3 millimeters; 4. tablet is transported to cement court and carries out airing, water content in the tablet after the airing≤13% carries out abrasive dust in the tablet input grinding machine after the airing, and the pulverulent mixture grain graininess behind the abrasive dust is controlled in 0.074 millimeter; 5. pulverulent mixture is imported and carried out granulation in the comminutor, the particle after the granulation is spherical in shape, and grain graininess is controlled at 1.0～6.0 millimeters, and the particle transport after the granulation is carried out airing to cement court, water content in the particle after the airing≤13%; 6. will carry out roasting in the input of the particle after the airing roaster, sintering temperature is controlled at 600～700 ℃, and roasting time was controlled at 1.5～3 hours, sieved after the roasting, the crushed particles and the powder that produce in the roasting process are screened out, be packaged as the finished product of concave-convex bar methane desulfurizing dessicant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100238113A CN100515541C (en) | 2007-06-28 | 2007-06-28 | Method for preparation of concave-convex bar methane desulfurizing dessicant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100238113A CN100515541C (en) | 2007-06-28 | 2007-06-28 | Method for preparation of concave-convex bar methane desulfurizing dessicant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101081347A true CN101081347A (en) | 2007-12-05 |
| CN100515541C CN100515541C (en) | 2009-07-22 |
Family
ID=38911268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100238113A Expired - Fee Related CN100515541C (en) | 2007-06-28 | 2007-06-28 | Method for preparation of concave-convex bar methane desulfurizing dessicant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100515541C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554832A (en) * | 2015-09-24 | 2017-04-05 | 刘从荡 | A kind of preparation method of concave-convex bar methane desulfurizing dessicant |
| CN111992035A (en) * | 2020-08-13 | 2020-11-27 | 青岛惠城环保科技股份有限公司 | High-fluidity efficient denitration agent and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2616819B2 (en) * | 1989-03-31 | 1997-06-04 | エスケ−化研株式会社 | Deodorant composition |
| CN1121950A (en) * | 1994-10-25 | 1996-05-08 | 上海市煤气公司研究所 | Dry shaping desulfurizing agent, its preparation and use |
| CN1394664A (en) * | 2001-07-06 | 2003-02-05 | 傅耀宗 | Concavo-convex rod spherical filtering material |
| CN1317066C (en) * | 2005-02-25 | 2007-05-23 | 许庆华 | Biomass gasification furnace absorbent and its production method |
-
2007
- 2007-06-28 CN CNB2007100238113A patent/CN100515541C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554832A (en) * | 2015-09-24 | 2017-04-05 | 刘从荡 | A kind of preparation method of concave-convex bar methane desulfurizing dessicant |
| CN111992035A (en) * | 2020-08-13 | 2020-11-27 | 青岛惠城环保科技股份有限公司 | High-fluidity efficient denitration agent and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100515541C (en) | 2009-07-22 |
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