Ceramic Structured Packing ( Ceramic Corrugated-sheet Packing / Kerapak )
(1) Unique structure
A very thin liquid film can be formed on the ceramic surface. Turbulence of the liquid film and the oblique winding gas channel can promote vapor instead of stopping it, therefore separation efficiency of the packing is equal to that of metal corrugated-sheet packing. Surface structure of the ceramic packing has good wetting ability, which promotes liquid flow and minimizes liquid holdup, as a result, the opportunity of superheating, polymerization and coking reduces.
(2) Excellent performance
a) High capacity. New tower design may reduce diameter, while revamping old towers may increase capacity significantly.
b) High separation efficiency owing to much larger specific surface area compared with random packing.
c) Low pressure drop, which leads to reduce energy consumption largely.
d) Large flexibility, and scale effect is not obvious.
e) Applicable to all tower diameters.
f) Strong resistance to corrosion of acid and alkali, especially to H2S, naphthenic acid and Cl-.
(3) Typical application
a. Separation of chloroacetic acid / dichloroacetic acid / acetic acid / acetic anhydride between room temperature and 140¡æ.
b. Separation of aromatic chloride, lipoid, hydrocarbon and other highly thermosensitive systems and isomeric compound in vacuum under 1 mbar,.
c. Regeneration of organic solvent contaminated by hydrochloric acid/ sulfuric acid/ nitric acid/ hydrogen phosphide / hydrogen bromide / bromine, etc.
(4) Performance data sheet of the packing
|
Technical
Specification |
Packing Type |
|
450X
450Y |
400X
400Y |
300X
300Y |
250X
2 50Y |
150X
150Y |
125X
125Y |
100X
100Y |
|
Specific
surface area
m²/m³ |
450 |
400 |
300 |
250 |
150 |
125 |
100 |
|
Void volume
m³/m³ |
68 |
70 |
72 |
74 |
85 |
90 |
92 |
|
Obliquity
¡ã |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
|
Hydraulic
diameter
mm |
7 |
8 |
10 |
12 |
15 |
28 |
30 |
|
Liquid
loading
m³/m²¡¤ h |
0.2-100 |
0.2-100 |
0.2-100 |
0.2-100 |
0.2-100 |
0.2-100 |
0.2-100 |
|
Maximal F
factor
m/s(Kg/m³)0.5 |
2.0 |
2.2 |
2.6 |
2.8 |
3.0 |
3.2 |
3.5 |
|
Pressure drop
mmHg |
4.5 |
4 |
3 |
2.5 |
2 |
1.8 |
1.5 |
|
Theoretical
plate
number
m-1 |
3-4 |
2.8 |
2.5 |
2.3 |
1.8 |
1.5 |
1 |
|
Bulk
density
kg/m³ |
700 |
670 |
650 |
620 |
420 |
400 |
370 | |
