CN101618311B - Packing material with catalytic action in packed tower and preparation method thereof - Google Patents
Packing material with catalytic action in packed tower and preparation method thereof Download PDFInfo
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- CN101618311B CN101618311B CN2009100895190A CN200910089519A CN101618311B CN 101618311 B CN101618311 B CN 101618311B CN 2009100895190 A CN2009100895190 A CN 2009100895190A CN 200910089519 A CN200910089519 A CN 200910089519A CN 101618311 B CN101618311 B CN 101618311B
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Abstract
The invention discloses a packing material with catalytic action in a packed tower and a preparation method thereof. Metal powder with grain size of 1-10 microns is evenly distributed on the surface of a PVC packing material and can be nickel, copper, gold or platinum, and the like; a polymeric dispersant is added in the metal powder, the use amount of the dispersant is 3-7 percent or 5 percent of the mass of the metal powder and the polymeric dispersant can be polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA) or stearic acid, and the like. The metal powder with catalytic action is evenly distributed on the surface of the PVC packing material, the tension of the liquid on the surface of the packing material is reduced, the uniformity of liquid distribution on the surface of the packing material is improved, and the gas-liquid reaction is catalyzed, therefore, the efficiency of the packed tower is improved.
Description
Technical field
The present invention relates to a kind of filler and preparation method thereof, particularly filler in the filler Tata and preparation method thereof.
Background technology
Packed tower is with the mass transfer apparatus of the filler in the tower as contact member between gas-liquid two-phase, plays absorption, is one of most important equipment during chemical industry, petrochemical industry and oil refining are produced, and has obtained using widely in industrial every field.The body of the tower of packed tower is a vertical cylinder always, and supporting plate is equipped with in the bottom, and filler is to huddle or whole mode of building is placed on the support plate.Hold-down grid is installed in the top of filler, in case blown by ascending air.Liquid sprays on the filler through liquid distribution trough from cat head, and flows down along filling surface.Gas is sent at the bottom of tower, after distribution device in gas-fluid (the minor diameter tower is not generally established distribution device in gas-fluid) distributes, is adverse current continuously by the space of packing layer with liquid, and on filling surface, gas-liquid two-phase contact closely carries out mass transfer.Packed tower belongs to Continuous Contact formula gas-liquid mass transfer (contact) equipment, and two phase compositions change continuously along tower height, and under normal operating state, gas phase is a continuous phase, and liquid phase is a decentralized photo.
Filler refers to be loaded on the inert solid material in the packed column, for example Pall ring and Raschig ring etc., and its effect is the contact-making surface that increases solution-air, makes its strong mutually mixing.Filler commonly used has Raschig ring, Pall ring, cascade ring, berl saddle, intalox saddle, becket intalox saddle, Ball-type packing etc., comprise ring packing, saddle packing, ring saddle packing and Ball-type packing etc. by the shape branch, comprise PVC filler, ceramic packing, metal packing etc. by the material branch.The use of PVC filler is comparatively general in the packed tower at present, and nickel, copper, gold or platinum are to use comparatively general gas liquid reaction catalyst.
Summary of the invention
The object of the invention is to provide a kind of interior filler of filler Tata with catalytic action; Another object of the present invention is to provide the preparation method of this filler.
Filler of the present invention is at the PVC filling surface, and the particle diameter that evenly distributes is at the metal dust of 1-10 micron, and metal dust can be metal dusts such as nickel, copper, gold or platinum; Add macromolecule dispersing agent in the metal powder, the consumption of dispersant is the 3-7% or 5% of metal powder quality, and macromolecule dispersing agent can be polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA) or stearic acid etc.
The preparation method of this filler is:
Nickel, copper, gold or the preliminary treatment of platinum powder: adopt the metal powder of particle diameter between the 1-10 micron to carry out filling surface and modify.Add macromolecule dispersing agent in metal powder, the consumption of dispersant is 5% of a metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
PVC filling surface preliminary treatment: clean PVC filler 1-4 minute (preferred 2 minutes) with alcohol-pickled vibration; Soak vibration with acetone and clean PVC filler 1-4 minute (preferred 2 minutes); Clean PVC filler 5-15 minute (preferred 10 minutes) with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute.
The heating of PVC material, and even metallizing powder: surface treated PVC filler is put into heater, be rapidly heated, begin above filler, evenly to spray metal powder then to 80～85 ℃, and the stirring filler, metal powder is evenly distributed at filling surface; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
The metal powder that the present invention will have catalytic action is distributed in the PVC filling surface, reduces the tension force of liquid at filling surface, improves the uniformity that liquid distributes at filling surface, catalysis gas liquid reaction, thereby the efficient of raising packed tower.The present invention adopts metal powders such as the nickel of particle diameter between the 1-10 micron, copper, gold, platinum to carry out filling surface and modifies.Particle diameter is greater than 10 microns, and the catalytic performance of metal powder is bad, and is unfavorable for the adhesion of metal dust at filling surface; Particle diameter is less than 1 micron, and metal powder has huge surface energy, and is unstable on thermodynamics, coalescent trend is automatically arranged, and antioxygenic property is poor, and oxidized easily in air, catalytic action is weakened.The present invention adds macromolecule dispersing agents such as polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), stearic acid in metal powder, macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle, the electric charge of solid particles surface is increased, improve the intergranular reaction force that forms steric hindrance, metal powder is not reunited when being sprayed to filling surface.
Application example
(1) anthraquinone hydrogenation reaction
It is anthraquinone that domestic hydrogen peroxide is produced most employings.The process for prepairng hydrogen peroxide by anthraquinone technical process is the closed circulation process of hydrogenation, oxidation, extracting and purifying, post processing, and wherein hydrogenation is a step of most critical.Hydrogenation is in the presence of hydrogenation catalyst, will be dissolved in anthraquinone derivative hydrogenation in the suitable solvent with hydrogen, make to generate corresponding hydrogen anthraquinone derivative, reaction equation as follows:
RAQ+H
2-RAHQ
RAQ+3H
2-RTHAHQ
Anthraquinone hydrogenation is reflected at the catalyst existence just can carry out down, and conventional method will guarantee that catalyst can evenly be suspended in the working solution, and control is comparatively complicated, adopts the efficient catalytic filler among the present invention, and this reaction is directly carried out in packed tower.
Adopt the PVC filler of surface distributed nickel powder to insert in the packed tower, the packed tower below feeds hydrogen, and top spray anthraquinone working solution can make reaction carry out.
(2) nitration reaction
The reaction of industry system nitric acid is the nitration reaction of ammonia, must just can carry out in the presence of catalyst.
NH
3+O
2-NO+H
2O
NO+O
2-NO
2
NO
2+H
2O-HNO
3+NO
Adopt the PVC filler of surface distributed platinum powder to insert in the packed tower, packed tower below aerating oxygen, top spray ammoniacal liquor can make reaction carry out, and has improved reaction efficiency greatly.
The specific embodiment
Embodiment 1:
Adopting the nickel metal powder of particle diameter between the 1-10 micron to carry out filling surface modifies.Add macromolecule dispersing agent polyvinylpyrrolidone (PVP) in metal powder, the consumption of dispersant is 5% of a metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
Cleaned the PVC filler 2 minutes with alcohol-pickled vibration; Soak vibration with acetone and cleaned the PVC filler 2 minutes; Cleaned the PVC filler 10 minutes with the deionized water ultrasonic wave; With the oven dry of PVC filler, 35 ℃ of bake out temperatures, 15 minutes time;
Surface treated PVC filler is put into heater, be rapidly heated, begin then above filler, evenly to spray metal powder, and stir filler, metal powder is evenly distributed at filling surface to 80～85 ℃; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
Embodiment 2:
Adopting the copper metal powder of particle diameter between the 1-10 micron to carry out filling surface modifies.Add macromolecule dispersing agent polyvinyl alcohol (PVA) in metal powder, the consumption of dispersant is 6% of a metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
Cleaned the PVC filler 3 minutes with alcohol-pickled vibration; Soak vibration with acetone and cleaned the PVC filler 4 minutes; Cleaned the PVC filler 12 minutes with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute;
Surface treated PVC filler is put into heater, be rapidly heated, begin then above filler, evenly to spray metal powder, and stir filler, metal powder is evenly distributed at filling surface to 80～85 ℃; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
Embodiment 3:
Adopting the platinum powder of particle diameter between the 1-10 micron to carry out filling surface modifies.Add the macromolecule dispersing agent stearic acid in metal powder, the consumption of dispersant is 5% of a metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
Cleaned the PVC filler 2 minutes with alcohol-pickled vibration; Soak vibration with acetone and cleaned the PVC filler 2 minutes; Cleaned the PVC filler 10 minutes with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute;
Surface treated PVC filler is put into heater, be rapidly heated, begin then above filler, evenly to spray metal powder, and stir filler, metal powder is evenly distributed at filling surface to 80～85 ℃; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
Embodiment 4:
Adopting the golden metal powder of particle diameter between the 1-10 micron to carry out filling surface modifies.Add macromolecule dispersing agent polyvinyl alcohol (PVA) in metal powder, the consumption of dispersant is 7% of a metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
Cleaned the PVC filler 3 minutes with alcohol-pickled vibration; Soak vibration with acetone and cleaned the PVC filler 2 minutes; Cleaned the PVC filler 15 minutes with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, 20 minutes time;
Surface treated PVC filler is put into heater, be rapidly heated, begin then above filler, evenly to spray metal powder, and stir filler, metal powder is evenly distributed at filling surface to 80～85 ℃; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
Claims (12)
1. the filler in the filler Tata with catalytic action is characterized in that this filler is at the PVC filling surface, and the particle diameter that evenly distributes adds macromolecule dispersing agent at the metal dust of 1-10 micron in metal powder.
2. filler as claimed in claim 1 is characterized in that metal dust wherein is nickel, copper, gold or platinum powder.
3. filler as claimed in claim 1 or 2 is characterized in that the consumption of the dispersant that adds is the 3-7% of metal powder quality.
4. filler as claimed in claim 3, the consumption that it is characterized in that dispersant wherein is 5% of a metal powder quality.
5. filler as claimed in claim 3 is characterized in that macromolecule dispersing agent wherein is polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA) or stearic acid.
6. filler as claimed in claim 4 is characterized in that macromolecule dispersing agent wherein is polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA) or stearic acid.
7. as the preparation method of claim 1,2 or 5 described fillers, it is characterized in that this method is:
Nickel, copper, gold or the preliminary treatment of platinum powder: adopt the metal powder of particle diameter between the 1-10 micron to carry out filling surface and modify; Add macromolecule dispersing agent in metal powder, the consumption of dispersant is the 3-7% of metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
PVC filling surface preliminary treatment: cleaned the PVC filler 1-4 minute with alcohol-pickled vibration; Soak vibration with acetone and cleaned the PVC filler 1-4 minute; Cleaned the PVC filler 5-15 minute with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute;
The heating of PVC material, and even metallizing powder: surface treated PVC filler is put into heater, be rapidly heated, begin above filler, evenly to spray metal powder then to 80～85 ℃, and the stirring filler, metal powder is evenly distributed at filling surface; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
8. the preparation method of filler as claimed in claim 7, the consumption that it is characterized in that the dispersant in this method is 5% of a metal powder quality.
9. as the preparation method of claim 7 or 8 described fillers, when it is characterized in that the PVC filling surface preliminary treatment in this method, clean PVC filler 2 or 3 minutes with alcohol-pickled vibration; Soak vibration with acetone and clean PVC filler 2 or 3 minutes; Clean PVC filler 12 or 10 minutes with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute.
10. the preparation method of filler as claimed in claim 3 is characterized in that this method is:
Nickel, copper, gold or the preliminary treatment of platinum powder: adopt the metal powder of particle diameter between the 1-10 micron to carry out filling surface and modify; Add macromolecule dispersing agent in metal powder, the consumption of dispersant is the 3-7% of metal powder quality, and macromolecule dispersing agent forms adsorption layer on the surface of metal powder particle;
PVC filling surface preliminary treatment: cleaned the PVC filler 1-4 minute with alcohol-pickled vibration; Soak vibration with acetone and cleaned the PVC filler 1-4 minute; Cleaned the PVC filler 5-15 minute with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute;
The heating of PVC material, and even metallizing powder: surface treated PVC filler is put into heater, be rapidly heated, begin above filler, evenly to spray metal powder then to 80～85 ℃, and the stirring filler, metal powder is evenly distributed at filling surface; Cooling cooling rapidly, the filler of gained is a filler of the present invention.
11. the preparation method of filler as claimed in claim 10, the consumption that it is characterized in that the dispersant in this method is 5% of a metal powder quality.
12., when it is characterized in that the PVC filling surface preliminary treatment in this method, clean PVC filler 2 or 3 minutes with alcohol-pickled vibration as the preparation method of claim 10 or 11 described fillers; Soak vibration with acetone and clean PVC filler 2 or 3 minutes; Clean PVC filler 12 or 10 minutes with the deionized water ultrasonic wave; With the oven dry of PVC filler, bake out temperature 30-40 ℃, time 10-20 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100895190A CN101618311B (en) | 2009-07-22 | 2009-07-22 | Packing material with catalytic action in packed tower and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100895190A CN101618311B (en) | 2009-07-22 | 2009-07-22 | Packing material with catalytic action in packed tower and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101618311A CN101618311A (en) | 2010-01-06 |
| CN101618311B true CN101618311B (en) | 2011-12-07 |
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| CN2009100895190A Expired - Fee Related CN101618311B (en) | 2009-07-22 | 2009-07-22 | Packing material with catalytic action in packed tower and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171296A (en) * | 1996-04-27 | 1998-01-28 | 德古萨股份公司 | Process for preparing catalytically active coatings for synthesis of hydrogen cyanida |
| CN2426763Y (en) * | 2000-05-26 | 2001-04-18 | 烟台汽车内饰集团公司 | Packed tower |
| CN2431952Y (en) * | 2000-05-08 | 2001-05-30 | 泸天化（集团）有限责任公司 | Packing for packed column |
| JP2000007720A5 (en) * | 1999-05-27 | 2006-06-29 | ||
| WO2006067132A2 (en) * | 2004-12-22 | 2006-06-29 | Degussa Gmbh | Zirconium-hafnium mixed oxide powder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6136919A (en) * | 1998-05-27 | 2000-10-24 | The Goodyear Tire & Rubber Company | Rubber composition and tire having tread thereof |
-
2009
- 2009-07-22 CN CN2009100895190A patent/CN101618311B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171296A (en) * | 1996-04-27 | 1998-01-28 | 德古萨股份公司 | Process for preparing catalytically active coatings for synthesis of hydrogen cyanida |
| JP2000007720A5 (en) * | 1999-05-27 | 2006-06-29 | ||
| CN2431952Y (en) * | 2000-05-08 | 2001-05-30 | 泸天化（集团）有限责任公司 | Packing for packed column |
| CN2426763Y (en) * | 2000-05-26 | 2001-04-18 | 烟台汽车内饰集团公司 | Packed tower |
| WO2006067132A2 (en) * | 2004-12-22 | 2006-06-29 | Degussa Gmbh | Zirconium-hafnium mixed oxide powder |
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|---|---|
| CN101618311A (en) | 2010-01-06 |
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Owner name: BEIJING SUNTRACING CLEAN TECHNOLOGY CO., LTD. Effective date: 20120507 |
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Effective date of registration: 20120507 Address after: 100025 Beijing city Chaoyang District eight Zhuang Xili No. 98 Building No. three room 803, 2000 Patentee after: Beijing Suxizhiqing Technology Co., Ltd. Address before: 100025 Beijing city Chaoyang District eight Zhuang Xili No. 98 Building No. three room 803, 2000 Patentee before: Zhao Yu |
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