Activated Alumina Pellets

Activated Alumina Pellets

Activated alumina pellets are the size most frequently used in regenerative dryers. Activated alumina is a porous form of aluminum oxide. It has a high surface area which adsorbs vapors without any change in form.

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The  common activated alumina size is 1/8", 3/16", However, if activated alumina is  used in a regenerative dryer and the desiccant retaining screens cannot be  measured, the 1/4", 8-10mm size should be used as a bed support  The activated alumina desiccant is used  extensively in compressed air dryers. Activated alumina is for use in both  heated compressed air dryers and heatless / pressure swing compressed air  dryers. Dewpoints to -40°F and lower may be achieved with activated alumina  depending on dryer design and operating conditions. XR101 activated alumina is  a smooth sphere of activated alumina produced by the unique manufacturing  process.
 XR101 activated alumina  is an excellent desiccant for drying a wide variety of liquids and gases.  Although all molecules are adsorbed to some extent on XR101 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.


 Parameter  of XR101 activated alumina pellets


     Item

Unit

Technical requirement

Particle size

mm

3-5

4-6

5-8

8-10

AL2O3

%

≥93

≥93

≥93

≥93

SiO2

%

≤0.10

≤0.10

≤0.10

≤0.10

Fe2O3

%

≤0.04

≤0.04

≤0.04

≤0.04

Na2O

%

≤0.40

≤0.40

≤0.40

≤0.40

Attrition Loss

%

≤0.08

≤0.08

≤0.08

≤0.08

Bulk density

g/ml

≥0.75

≥0.75

≥0.75

≥0.75

Surface area

㎡/g

≥320

≥320

≥320

≥280

Pore Volume

ml/g

≥0.43

≥0.45

≥0.45

≥0.45

Water absorption

%

≥55

≥55

≥55

≥55

Crushing Strength (N/Particle)

N/particle

≥180

≥200

≥260

≥350

Technical Parameter of activated alumina    balls

Item

XR-101

XR-105

XR-107

XR-400

XR-135

Technical Parameter of activated alumina

Item

XR-101

XR-105

XR-107

XR-400

XR-135

appearance

white, sphere, odourless, insoluble in    water, innocuous

application

Adsorbent, Desicccant

defluorination

adsorption H2O2

catalyst carrier

Dehydrating and drying in air separation

Crystal

x-p

x-p

Γ

Γ

x-p

chemical composition

Al2O3 %

≥93

≥93

≥93

≥93

≥93

Na2O %

≤0.40

≤0.3

0.3-1.0

≤0.35

≤0.4

LOI

%

6-8

6-8

≤8

≤5

6-8

bulk density

g/ml

≥0.75

≥0.75

0.65-0.8

0.45-0.95

≥0.75

surface area

/g

≥340

≥300

220-280

10-380

≥350

pore volume

ml/g

≥0.45

≥0.42

≥0.45

≥0.45

≥0.45

Attrition Loss

%

≤0.1

 

 

 

≤0.1

Crushing strength(N/Particle)

ф1-2mm

 

≥40

 

 

≥50

ф2-3mm

≥70

≥80

≥80

≥40

≥70

ф3-5mm

≥160

≥120

≥100

≥60

≥160

ф4-6mm

≥200

 

≥130

≥80

≥200

ф5-7mm

≥240

 

 

 

≥240

ф6-8mm

≥260

 

 

 

≥260


Application of Activated alumina:XR101 activated alumina is used for deep  drying of gas or liquid phase of petrochemicals, air separation adsorption and  adsorption drying by automatic instruments.
Zibo Xiangrun  and Shandong Bairui is the activated alumina manufacturers and activated alumina suppliers.


Activated alumina storage:
lAvoid moisture,  avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied..
lIt should be  stored in dry and ventilated warehouse to prevent contamination or moisture.


Package of Activated Alumina for air  Dryers:

Type

Plastic bag

Drum

Drum

Super sack/Jumbo bag

Bead

25kg/55lb

25 kg/ 55 lb

150 kg/ 330 lb

750kg/1650lb
 900kg/1980lb
   1000kg/ 2200 lb

 


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