3
Table1. Physical PropertiesofAdsorbents
Pressure
Drop
(inches
Weight of
Packing
Mesh
of water)
Adsorbent
Density Conditioning Desorption Surface
Adsorbent Name
Adsorbent Class
Size
@100mL/min
(mg)
grams/cc Temp °C Temp °C Aream
2
/g
Carbosieve S-III
CarbonMolecular Sieves 60/80
13.2
379
0.76
350°
330°
820
Carboxen-563
CarbonMolecular Sieves 20/45
4.8
275
0.55
350°
330°
510
Carboxen-564
CarbonMolecular Sieves 20/45
2.5
297
0.59
350°
330°
400
Carboxen-569
CarbonMolecular Sieves 20/45
2.3
308
0.61
350°
330°
485
Carboxen-1000
CarbonMolecular Sieves 60/80
12.3
258
0.52
350°
330°
1200
Carboxen 1001
CarbonMolecular Sieves 60/80
11.8
291
0.58
350°
330°
500
Carboxen-1002
CarbonMolecular Sieves 40/60
10.0
227
0.46
350°
330°
1100
Carboxen-1003
CarbonMolecular Sieves 40/60
12.1
226
0.45
350°
330°
1000
Carboxen-1016
CarbonMolecular Sieves 60/80
12.4
239
0.48
350°
330°
75
Carboxen-1018
CarbonMolecular Sieves 60/80
17.9
402
0.80
350°
330°
700
CarbopackF
GraphitizedCarbon
60/80
21.6
399
0.81
350°
330°
5
CarbopackC
GraphitizedCarbon
60/80
18.8
416
0.85
350°
330°
10
CarbopackY
GraphitizedCarbon
60/80
13.0
254
0.51
350°
330°
24
CarbopackB
GraphitizedCarbon
60/80
20.2
217
0.43
350°
330°
100
CarbopackX
GraphitizedCarbon
60/80
24.2
290
0.58
350°
330°
240
TenaxTA
PorousPolymer
60/80
15.8
143
0.28
320°
300°
35
TenaxGR
PorousPolymer
60/80
16.6
204
0.41
320°
300°
24
PorapakN
PorousPolymer
50/80
6.3
188
0.37
190°
180°
250-350
Chromosorb 106
PorousPolymer
60/80
7.6
151
0.30
190°
180°
750
HayesepD
PorousPolymer
60/80
10.4
171
0.35
190°
180°
795
GlassBeads
Other
60/80
16.9
826
1.68
350°
330°
<5
SilicaGel Grade 15
Other
40/60
7.2
380
0.76
190°
180°
750
Coconut Charcoal
Other
20/40
2.2
283
0.57
190°
180°
1070
PetroleumCharcoal
Other
20/40
2.1
250
0.50
190°
180°
1050
Packingdensity differs from free-fall density for it takes intoaccount theparticle to ID relationshipof the specific insidediameter of
theglass tube to the shapeandmesh sizeof theadsorbentmaterial. These valuesweredetermined from theactual lot number of
theadsorbents tested in this research. Thepackingdensity canbeused to calculate theapproximatebedweight inagiven volume
of a 4-millimeter ID tube.
