Zeochem Molecular SievesThe Right Choice
For Air Prepurification
Zeochem Z10-02
Zeochem Molecular SievesThe Right Choice
For Air Separation Units
Messer ASU in Duisburg/Ger (115 tons MS)
Messer ASU in Gelsenkirchen/Ger (115 tons MS)
Zeochem Z10-02Zeochem Z10-02Air Prepurification GradeAir Prepurification Grade
• High static CO2 Capacity
• High dynamic CO2 Capacity
• Fast Adsorption and Desorption Kinetic
• High Density
• High Crush Strength• Low Attrition• Exceptional Hydrothermal Stability
Zeochem Z10-02Air Prepurification Grade
• High Static CO2 Capacity at Low Partial Pressure
• CO2 capacity higher than leading competitors
especially at low partial pressures
• Exceptional consistency from lot to lot
Zeochem Z10-02Air Prepurification Grade – CO2 Adsorption Statistics in 1999
11
12
13
14
0 55 110 165Batch Numbers in 1999
CO
2-A
ds
orp
tio
n [
%]
Spezifikation Z10-02
Z10-02
Zeochem Z10-02Air Prepurification Grade–CO2 Adsorption Statistics in 2001/2002
11
12
13
14
0 24 48 72Batch Numbers in 2001/2002
CO
2-A
ds
orp
tio
n [
%]
Spezifikation Z10-02
Z10-02
Zeochem Z10-02 Comparison of CO2 Adsorption on 13X Types
0
2
4
6
8
10
12
14
16
0 10 20 30 40 50 60 70
Z10-02 IMPROVED 2002
Z10-02
Z10-01
Competitive APP sample I
Competitive APP sample II
Zeochem Z10-02EPA New Generation Product For APP and PSA O2 Applications
Z10-02/Z10-02EP: Mass Transfer Zone Length on CU Pilot Unit
30
40
50
60
70
80
90
100
1 1.5 2 2.5 3
mean particle diameter [mm]
MT
Z (
Sh
aw
) [m
m]
Z10-02EP
Z10-02
Zeochem Z10-02CO2 Breakthrough Time
- Test tubes: 30.5 mm diameter/400 mm bed height
- Approx. 200 g molecular sieve- Temperature: 25°C- Operating Pressure: 6 bar absolute- Test gas: 450 ppm CO2 in 2400 Nl/h nitrogen- Breakthrough time: minutes to 5 ppm CO2 at
outlet
Zeochem Z10-02CO2 Breakthrough Time
0
50
100
150
200
250
300
350
0 50 100 150 200 250 300
Z10-02 (1999): typical 125 min
Z10-02 (2001): typical 165 min
Z10-02 (2002 improved): typical > 200 min
Zeochem Z10-02
• Density Advantage
• Density of Z10-02 is higher giving more capacity per unit volume in existing plants
• Z10-02 density = 660 kg / cu meter• Competitive density = 615 kg / cu meter
• Advantage = 7.3 %
Zeochem Z10-02
Competitor 1/8" Pellets, Zeochem 2.5 - 5 mm Beads
Zeochem 1.6 – 2.6 mm Beads, Competitor 1/16" Pellets
Zeochem Z10-02Air Prepurification Grade
Crush Strength
– Physical strength of bead/extrudate under compressive
stress
– Test measures the force required to crush beads/extrudates
– Simulates the compressive forces acting on the material in
service
– All Z10-02 manufacturing lots are tested for crush strength to
ensure long life in the field
Zeochem Z10-02Air Prepurification Grade
Crush Strength• Zeochem’s proprietary bead forming and calcination
processes yield exceptionally high crush strength, typically in
excess of 2.5 kp for 1.6 – 2.6 mm beads
• Spherical beads give a higher packed bed crush strength than
comparable extrudates, since compressive forces are
distributed more evenly
• Spherical beads have no sharp edges (cylindrical extrudates
do) which can easily break off
Zeochem Z10-02Air Prepurification Grade
Attrition– Tendency for material from bead/extrudate to attrit from
friction against other beads or surfaces
– Test measures the amount of fines produced by attrition
– Simulates the movement of beads/extrudates against each
other during thermal swings
– All Z10-02 manufacturing lots are tested for attrition strength
to ensure long life in the field
Zeochem Z10-02Air Prepurification Grade
Attrition %
material lost as fines*
• Zeochem Z10-02 1.6 – 2.6 mm bead 0.05
• Competitor 1/16" extrudate 0.20
• In Zeochem standard attrition test (method Si5/45)
Zeochem Z10-02Air Prepurification Grade
Hydrothermal Stability– Ability of the material to maintain high adsorption capacity
after exposure to high heat and humidity
– Test measures the retained capacity after accelerated aging in
a hot, humid environment
– Simulates the loss in crystallinity resulting from thermal
regeneration cycles to which the material is exposed in
operation
– Z10-02 manufacturing runs are tested for hydrothermal
stability to ensure long life in the field
Zeochem Z10-02Product Analysis
Kinetics
Dust
CO2 Capacity
Crush
CO2 Breakthrough
Zeochem Z10-02Air Prepurification Grade – Product Analysis
• X-Ray powder diffraction
• elemental analysis
• scanning electron microscopy
• kinetic measurement [CO2 breakthrough time on TGA ]
• hydrothermal stability test
• bulk density [g/l] on the CoA
• under- and oversize [max. 5 %] on the CoA
• attrition [%] on the CoA
• crush strength [kp] on the CoA
• residual water [%] on the CoA
• CO2 adsorption [%] on the CoA
Zeochem Z10-02Air Prepurification Grade – References
• Air Liquide - Paris France• Air Liquide - Houston USA• Air Liquide - Western Australia• Air Liquide - Canada• AGA – Sweden• Hydrogas - Norway• Air Products – USA, England,
Germany, S. Africa, Holland• Carburos Metallicos, Spain• GAS, S. Arabia• Amoco - USA
• Carbagas - Switzerland• Asarco - USA• Canadien Liquide Air - Canada• Arco – USA• PEMEX – Mexico• Tecno Project – Italy• Socsil – Singapore• Kroman Celik – Turkey• Messer Griesheim – Germany• NFL – India• Jindal Strips India
Zeochem Z10-02Air Prepurification Grade – Big ASU Units
• Air Liquide, FIPG, Exxon Mobil, Singapore 93'600 kgSibelius, Belgium 93'600 kgAntwerp, Belgium 93'600 kgAngang, China 92'000 kgBLNG, Bintulu, Malysia 128'280 kg
• Air Products, UKRustenburg, S. Africa 28'000 kgCarburus Metallicos, Spain 35'000 kgGAS, Sabic, S. Arabia 48'000 kg
• Messer Griesheim, GerDuisburg, Germany 116'000 kgGelsenkirchen, Germany 116'000 kg