Alumina
Aktiviertes Aluminiumoxid (Alumina) wird in Form von glatten Kugeln durch einen speziellen Herstellungsprozess produziert und ist ein hervorragendes Trockenmittel für das Trocknen von Flüssigkeiten und Gasen. Es adsorbiert Moleküle, wobei stark polare Moleküle bevorzugt werden. Die Effizienz der Adsorption wird durch Bedingungen wie Druck, Konzentration, Molekulargewicht, Temperatur und konkurrierende Moleküle beeinflusst. Alumina ist in den Größen 1/16″, 1/8″, 3/16″ und 1/4″ erhältlich.
Merkmale Alumina
Produktanwendungen für Aktiviertes Aluminiumoxid (Alumina)
Fast alle Gase und Flüssigkeiten können mit Alumina getrocknet werden. Die Entfernung von Wasser ist oft notwendig für effiziente Verarbeitung, Lagerung und den Transport von Flüssigkeiten. Für die Trocknung in der Gasphase wird die 3/16″-Größe empfohlen, da sie einen minimalen Druckabfall bei hoher H2O-Adsorptionskapazität bietet. Die 1/8″-Größe und die 7×14 Tyler-Mesh-Größen werden für die Flüssigkeitstrocknung und andere massentransferbegrenzte Adsorptionsanwendungen empfohlen. Aktiviertes Alumina wird zunehmend als Industriestandard zur Trocknung von Druckluft verwendet. Es bietet eine lange Lebensdauer und gewährleistet Leistung unter oder auf dem Taupunkt. Alumina eignet sich für die Trocknung von Gasen sowohl in thermisch regenerativen Systemen (350 bis 600°F) als auch in Druckwechseladsorptionssystemen (PSA).
In Transformatorenölen, Schmierölen und Kältemitteln entstehen durch die Nutzung Säuren. Alumina entfernt diese Säuren während des Gebrauchs. Bei der Herstellung von chlorierten und/oder fluorierten Kohlenwasserstoffen ist die Entfernung von Rückständen wie Halogeniden und Wasser entscheidend für ein korrosionsfreies Produkt.
Alumina eignet sich hervorragend zur Entfernung stark polarer Verbindungen wie Wasser und Alkohol. Es adsorbiert auch leicht TBC und Schwermetallionen aus Kohlenwasserstoffen.
Unter geeigneten Betriebsbedingungen fördern die Porenstruktur und Oberflächenchemie von aktiviertem Aluminiumoxid die Adsorption von Kohlenwasserstoffen.
– 50 lb Säcke
– 375 lb Stahldrums
– 2000 lb Super-Säcke
Spezifikationen Alumina
- Bitte beachten Sie das die Spezifikation sowie Product Sheet für die Alumina auf Englisch ist!
Activated Alumina for Liquid and Gas Drying
Alumina is a smooth sphere of activated alumina produced by a unique manufacturing process. Alumina is an excellent desiccant for drying a wide variety of liquids and gases. Although all molecules are adsorbed to some extent on activated alumina, those molecules having the highest polarity are preferentially absorbed. Stream conditions such as pressure, concentration and molecular weight of the molecules, temperature and site competing molecules affect the efficiency of adsorption. Alumina is available in nominal sizes of 1/16″, 1/8″, 3/16″ and 1/4” spheres.
Product Benefits
1. Uniform ball size
This property is especially useful in high pressure gas dehydration where minimizing pressure drop is important. The uniform size and sphericity of Alumina prevents adsorbent segregation during pneumatic loading, thus minimizing channeling and yielding more efficient use of the entire desiccant tower.
2. High crush strength
Alumina has high crush strength which allows rapid pneumatic loading of towers. The high crush strength also allows use of taller towers that make more efficient use of the desiccant. The activated alumina is highly resistant to amine attack. Furthermore, Aluminas high crush strength enables it to dehydrate acid containing gases and liquids, such as CO2, for a longer operating life.
3. Low abrasion
The low abrasion of Aluminas ensures less dusting during transport, loading, and service life which reduces pressure drop and minimizes downstream valve and filter plugging, common with dustier products.
4. High adsorptive capacity
Aluminas high surface area and tailored pore distribution provide a high dynamic H2O adsorption capacity. With proper tower design and effective regeneration, Alumina can achieve an ultra low H2O effluent specification (i.e. dew point). Alumina also has excellentcyclic stability that yields a long life.
Typical Physical Properties | 7X14 Tyler Mesh | 1/8″ ( 3.2 mm) | 3/16″ (4.7 mm) | 1/4″ (6.4 mm) |
Surface Area, m2/g | 360 | 350 | 340 | 320 |
Total Pore Volume, cc/g | 0.5 | 0.5 | 0.5 | 0.5 |
Packed Bulk Density, lbs/ft3 (kg/m3) | 48 (769) | 48 (769) | 48 (769) | 48 (769) |
Crush Strength, lbs (kg) | 11 (5) | 30 (14) | 55 (25) | 70 (32) |
Abrasion Loss, wt % | 0.1 | 0.1 | 0.1 | 0.1 |
Typical Chemical Composition (wt %) | |
Al2O3 | 92.7 |
SiO2 | 0.02 |
Fe2O3 | 0.02 |
Na2O | 0.30 |
LOI (250-1100º C) | 7.0 |
1. Drying
Nearly all gases and liquids can be dried with Alumina Water removal is often necessary for efficient processing storage and transportation of fluids. The 3/16″ size is normally recommended for vapor phase dehydration applications where pressure drop minimization yet high H2O adsorptive capacity is desired. The 1/8″ and 7 x 14 Tyler mesh sizes are recommended for use in liquid dehydration and other mass transfer limited adsorption applications.
The activated alumina is rapidly becoming the industry standard for drying compressed air. Providing long service life with performance at or below dew point specifications, Alumina is a ‘peace of mind’ product for both large and small dryers. Alumina is appropriate for use in dehydrating gases in both thermally regenerative (350 to 600°F) and pressure swing (PSA) modes.
2. Acid removal
Transformer oils, lubricating oils, and refrigerants form degradation acids upon use. Alumina will remove these acids during use. In the manufacture of chlorinated and/or fluorinated hydrocarbons, removal of these residual halides and water is essential for a non-corrosive product.
3. Process stream purification
Alumina is excellent for removal of highly polar compounds such as water and alcohol. It also readily adsorbs TBC ad heavy metal ions from hydrocarbons.
4. Hydrocarbon adsorption
Under proper operating conditions, the pore size distributions and surface chemistry of activated aluminas are conducive to the adsorption of hydrocarbons.
Available Packaging
- 50 lb bags
- 375 lbs steel drums
- 2000 lb super sacks
Spezifikationen Alumina
-
Bitte beachten Sie das die Spezifikation sowie Product Sheet für die Alumina auf Englisch ist!
Zudem beachten Sie bitte dass die Typical Physical Properties in der Mobilen Ansicht nicht ersichtlich sind, alternativ können Sie sich die Product Sheet als PDF über den Link herunterladen!
Activated Alumina for Liquid and Gas Drying
Alumina is a smooth sphere of activated alumina produced by a unique manufacturing process. Alumina is an excellent desiccant for drying a wide variety of liquids and gases. Although all molecules are adsorbed to some extent on activated alumina, those molecules having the highest polarity are preferentially absorbed. Stream conditions such as pressure, concentration and molecular weight of the molecules, temperature and site competing molecules affect the efficiency of adsorption. Alumina is available in nominal sizes of 1/16″, 1/8″, 3/16″ and 1/4” spheres.
Product Benefits
1. Uniform ball size
This property is especially useful in high pressure gas dehydration where minimizing pressure drop is important. The uniform size and sphericity of Alumina prevents adsorbent segregation during pneumatic loading, thus minimizing channeling and yielding more efficient use of the entire desiccant tower.
2. High crush strength
Alumina has high crush strength which allows rapid pneumatic loading of towers. The high crush strength also allows use of taller towers that make more efficient use of the desiccant. The activated alumina is highly resistant to amine attack. Furthermore, Aluminas high crush strength enables it to dehydrate acid containing gases and liquids, such as CO2, for a longer operating life.
3. Low abrasion
The low abrasion of Aluminas ensures less dusting during transport, loading, and service life which reduces pressure drop and minimizes downstream valve and filter plugging, common with dustier products.
4. High adsorptive capacity
Aluminas high surface area and tailored pore distribution provide a high dynamic H2O adsorption capacity. With proper tower design and effective regeneration, Alumina can achieve an ultra low H2O effluent specification (i.e. dew point). Alumina also has excellentcyclic stability that yields a long life.
1. Drying
Nearly all gases and liquids can be dried with Alumina Water removal is often necessary for efficient processing storage and transportation of fluids. The 3/16″ size is normally recommended for vapor phase dehydration applications where pressure drop minimization yet high H2O adsorptive capacity is desired. The 1/8″ and 7 x 14 Tyler mesh sizes are recommended for use in liquid dehydration and other mass transfer limited adsorption applications.
The activated alumina is rapidly becoming the industry standard for drying compressed air. Providing long service life with performance at or below dew point specifications, Alumina is a ‘peace of mind’ product for both large and small dryers. Alumina is appropriate for use in dehydrating gases in both thermally regenerative (350 to 600°F) and pressure swing (PSA) modes.
2. Acid removal
Transformer oils, lubricating oils, and refrigerants form degradation acids upon use. Alumina will remove these acids during use. In the manufacture of chlorinated and/or fluorinated hydrocarbons, removal of these residual halides and water is essential for a non-corrosive product.
3. Process stream purification
Alumina is excellent for removal of highly polar compounds such as water and alcohol. It also readily adsorbs TBC ad heavy metal ions from hydrocarbons.
4. Hydrocarbon adsorption
Under proper operating conditions, the pore size distributions and surface chemistry of activated aluminas are conducive to the adsorption of hydrocarbons.
Available Packaging
- 50 lb bags
- 375 lbs steel drums
- 2000 lb super sacks
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Druckluft- und Adsorptionstechnik
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D-64546 Mörfelden-Walldorf
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