Industry & Applications

Synthesis Gas
Ammonia
Feed Purification
Reforming
Shift Reactions
Methanation
Ammonia Synthesis
Methanol
Refinery
FCC Additives
Middle Distillate Upgrading
Aromatic Saturation
Clay Treatment of Refinery Products
Dewaxing of Diesel and Kerosene
Fuels Production
Conversion of Olefins to Diesel and Gasoline (COD)
Conversion of Paraffins to Aromatics (CPA)
Conversion of Methanol to Gasoline (CMG)
Hydrogen Production in Refineries
Isomerisation
C4 Selective Hydroisomerization
C5 / C6 Isomerization
Lubes and Waxes
Dewaxing of Lube Oil
Hydrotreating and Hydrofinishing
Lube Oil and Wax Bleaching
Hydrogenation of Olefins
Diesel Hydrotreating
Production of Polygasoline and Higher Olefins
Butylene Dimerization
Purification of FCC Off-gases
Sulfur Recovery Units
Traps & Guards
Petrochemicals
Selective Hydrogenation for Steam Crackers – OleMax ®
Hydrogenation of Pyrolysis Gasoline
Purification of Polymer feedstock (ethylene/propylene) - PolyMax®
Production of Terephthalic Acid (PTA) – H2Max®
Alkanes Dehydrogenation and Dealkylation – CATOFIN®
Aromatics and Derivatives
Conversion of Methanol to Propylene – MTPROP®
Ethylene Dichloride (EDC) – OxyMax ®
FCC Off-Gas Treatment
Polypropylene Production – C-Max®
Styrene Production – StyroMax®
Sulfuric Acid
Sulfuric Acid
Air purification
Engines Exhaust Gas Treatment
Industrial Exhaust Gas Treatment
DRI
Zeolites & Adsorbents
Custom Catalysts

Purification of Polymer feedstock (ethylene/propylene) - PolyMax®

Ethylene / Propylene purification catalysts are typically located upstream of Polymerisation catalysts and used for trace removal of impurities.

3.1 Ethylene Purification:

3.1.1 H2S Removal: PolyMax® 172

PolyMax® 172 is a ZnO based absorbent for removal of H2S from ethylene feed. PolyMax® 172 is a high surface area absorbent and typical H2S in the product stream is < 0.05 ppm.

PolyMax® 172 is non-regenerable and is supplied in extrusion shape.

3.1.2 CO / O2 / H2 Removal: PolyMax® 300 series

PolyMax 300 series absorbents remove CO / O2 / H2 along with traces of H2S from ethylene stream.

3.1.3: Trace removal of C2H2 (acetylene), H2: PolyMax® 200 series

PolyMax 200 is precious metals catalyst for trace removal of C2H2 & H2 by hydrogenation to ethylene.

3.2 Propylene Purification:

3.2.1 Sulfur / Arsine / Phosphine removal: ActiSorb® 300 series

ActiSorb® 300 is a versatile absorbent for trace removal of COS / Arshine / Phosphine from propylene streams.

ActiSorb®300 is non-regenerable and is supplied in the form of Tablets.

3.2.2 Methyl Acetylene & Propadiene Removal (MAPD)

G68-F is a precious metals catalyst for hydrogenation of MAPD in propylene stream.

3.2.3 Bulk removal of COS: PolyMax® 153

For bulk removal of COS, precious metals based PolyMax® 153 is recommended. COS is converted to H2S by hydrolysis with moisture in the feed. H2S in removed downstream using PolyMax® 172 adsorbent.

3.3 Methanation: Meth 134 & Meth 135

Methanation catalyst is used for removal of CO & CO2 from various hydrogen streams in steam cracker or polymer units. Meth 134 is the standard Methanation catalyst, while Meth 135 is a high activity version suitable for operation at low temperature.

Both Meth 134 & 135 needs in-situ reduction for operation. In case in-situ reduction facility is not available, catalyst can be supplied in “pre-reduced” and “Stabilised” condition designated as Meth 134 RS & Meth 135 RS. RS version catalyst is surface stabilised and can be handled just like a normal oxide catalyst.