Saint-Gobain NorPro
Catalyst Carriers

High Surface Area Catalyst Carriers

HSA Catalyst Carriers



Alumina Pentarings

Saint-Gobain NorPro provides a range of formed, higher surface area catalyst carrier.  Surface areas from 10 m2/g to 400 m2g are typically based on high-purity raw materials.  When needed, Saint-Gobain NorPro can incorporate unusual pore size distributions, including a high proportion of macroporosity.  In recent years, we have developed strong, impact-resistant rings with outside diameters as small as 3 mm. 

 

Saint-Gobain NorPro manufactures its intermediate and high-surface area alumina catalysts in special shapes.  Pentarings and short pentarings (wagon wheels) offer activity and geometric surface area advantages along with low pressure drop.  Honeycomb rings are also available.

 

Transition Phase Materials

Very precise calcination temperature control together with careful choice of materials allows Saint-Gobain NorPro to manufacture phase-specific alumina carriers, e.g. material that is >90% theta-alumina. 

 

Materials

Alumina carriers can be made from:
 
  • Theta
  • Delta
  • Eta
Titania carriers can be made from:
 
  • Anatase
  • Rutile anatase blend
Zirconia carriers can be made from:
 
  • Monoclinic
  • Tetragonal crystalline phase

 


Typical Properties

 

ISA, HSA Catalyst Carriers

(.PDF document at right)

Product Code Description Surface Area Median Pore Diameter Total Pore Volume (Hg) Water Absorption Packing Density Phase Chemical Purity
m2/g cm3/g % lb/ft3 kg/m3
Alumina - Intermediate Surface Area (10 - 100m2/gm)
SA 3*35 Macroporous 12 1.2 µm 0.53 59 43 688 α / Transition (γ,θ) 17.9% SiO2
SA 3*32 Macroporous 30 1.2 µm 0.55 60 40 640 α / Transition (γ,θ) 17.9% SiO2
SA 3*132

Theta alumina

55 25 / 550 nm >0.8   34 550 Mainly θ <0.1% SiO2
SA 3*145

Theta alumina

75 20 / 230 nm >0.55   40 650 Mainly θ <0.3% SiO2; <0.1% Na2O
SA 3*77   100 (1) 10 nm 0.49   49 780 α / Transition (γ,θ) 0.1% SiO2
NOTES
(1) Surface areas from 20 to over 100m2/gm are available
 
Alumina - High Purity - High Surface Area (>100m2//gm)
SA 6*73   200 7 nm 0.6   40 640 γ <0.05% Na2O
SA 6*75   260 10 nm 0.83   34 545 γ <0.05% Na2O
SA 6*76 Bimodal pore size distribution 250 7 / 500 nm 1.05   29 460 γ <0.05% Na2O
SA 6*78   175 13 nm 0.82   29 460 γ,δ <0.05% Na2O
SA 62125 UniSpheres® 200 8.5 nm 0.6   40 640 γ <0.05% Na2O
SA 66147 Pentarings 230 8 nm >0.65   27 430 γ <0.05% Na2O
SA 63158 Spray dried (60 - 90µm) 200   0.66   43 690 γ <0.1% SiO2; <0.03% Na2O
 
Zirconia
SZ 3*163 Monoclinic zirconia (formerly XZ 16075) 55 16 / 60 nm >0.27   80 1280 Monoclinic <0.2% SiO2
SZ 3*114 Modified SZ 31163 50 10 / 40 nm 0.30   80 1280 Monoclinic <0.2% SIO2
SZ 3*108 Modified SZ31163 70 10 / 40 nm 0.30   75 1200 Monoclinic <0.2% SIO2
SZ 3*164 Monoclinic zirconia (formerly XZ 16052) >85 8 / 60 nm 0.29   70 1160 Monoclinic <0.2% SIO2
SZ 3*107 Silica doped 95 10 / 40 nm 0.30   75 1200 Monoclinic <0.2% SIO2
SZ 6*152 Tetragonal 140 3 / 150 nm 0.30   70 1100 Tetragonal 3.3% SiO2
SZ 6*156 Lanthana doped  tetragonal 120 5 / 200 nm 0.30   81 13100 Tetragonal 10% La2O3
SZ 6*157 Yttria doped tetragonal 115 5 / 200 nm 0.33   78 1250 Tetragonal 8% Y2O3
SZ 6*191 Ceria doped  tetragonal 110 4 / 150 nm 0.25   87 1400 Tetragonal 18% CeO2
SZ 3*143 Tungstated (2) 130 5 / 110 nm 0.25   90 1450 Tetragonal 18% WO3
SZ 6*192 Sulfated 130 40 nm 0.12 (N2)   94 1500 Tetragonal 4% SO ; 5% SiO2
SZ 3*140 Zirconia / titania 80 11 / 16 / 121 nm 0.46   50 815 Mono / Yetrag 40% anatase TiO2
NOTES
(1) Other silica levels and dopants available
(2) Sulfated zirconia also available
 
Titania
ST 5*122 Rutile (1) 3 > 160 nm > 0.15   95 1500 > 95% Rutile < 100 ppm S
ST 3*119 Anatase (2) 40 28 nm 0.30   70 1200 Anatase <0.3% S
ST 6*120 Anatase 150 15 nm 0.38   55 900 Anatase <0.3% S
NOTES
(1) Higher surface areas are available with > 95% rutile content
(2) Surface areas 40 - 150m2/gm available
 
Silica
SS 6*137 HSA silica 160 11 nm 0.6   39 630   +99.5% SIO2
SS 6*138 HSA silica 250 12 nm 1.0   22 350   +99.5% SIO2
SS 6*155 Silica - alumina >400 8 / 500 nm 0.6   34 550 Mainly amorphous 25% Al2O3; 0.35% Na2O
 
Other Materials
SA 6*169

JR 323 Basic alumina (formerly CRR*RDA)

250 0.11 µm 1.0 115 25 400 Modified alumina 4.5% CaO; 1% MgO; 0.5% SiO2
 

The standard carriers represented in the table are either formed shapes for fixed-bed or spray dried powders for slurry / fluidized bed reactor applications.  Please note that over 90% of the carriers we produce were custom developed for specific customer applications and those carriers are not shown in the table, however, the standard carriers are a good starting point for most projects.  Please contact us if you do not find a catalyst carrier suitable for your application; we can tailor the carrier properties to match up with your catalyst preparation or process requirements.

 

Spheres Pellets Trilobes Pressed Rings Pentarings

 

 

Diluents

Diluents are inactive ceramic bodies that prevent hot spots in a catalytic bed by uniformly reducing the activity of the bed.  These bodies must be tailored to mix intimately with the catalyst without affecting fluid flow through the catalyst bed.  Additionally, they must not separate from the catalyst even under upset conditions.

 

Saint-Gobain NorPro is active in the development of special diluent shapes and materials tailored for your specific application.

 


Product Information

Product information (.PDF) is available in the right column.


Contact Us for specific details.

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