High silica zeolites (HPZ)

ZEOcat® Products

Outlines

Zeochem AG has developed and manufactured high silica zeolite catalyst supports since 1980. Such products are marketed worldwide under the trademark ZEOcat® . Primarily the petrochemical-, refining- and environmental industries are regular customers of these specific high-tech products. A variety of cristal structures provide materials suitable for catalytic applications, for VOC removal and for many other hydrophobic adsorption applications, as well as for application where a high acid resistance is required. For typical characteristics and chemical and physical properties of the various ZEOcat® . high silica zeolite catalyst supports and further information on their nature, applications, etc. please contact Zeochem AG.

VOC's

Volatile Organic Compounds are airborn polutants which need to be adsorbed from exhaust gases, cleaning agents, furniture polish and fabric softeners. These also include solvents used in coatings, as well as thinners and brush cleaners. In the presence of sunlight, these VOCs can react with nitrogen oxides to create ground level ozone and photochemical smogs. These in turn can contribute to pollution of the atmosphere.

Major areas of application

• The petrochemical and refining industries, where ZEOcat® products are used as catalyst support bases.
• Removal of VOC's from air, using the strongly hydrophibic zeolite powder (i.e. Honey comb wheels) or ZEOcat Z-400 and ZEcoat Z-700 standard beads in regenerative adosrber systems
• The plastic industry for the removal of undesired smell and taste. (e.g. ZEOflair powder)
• ZEOcat powder is extensively used as catalys carrier in gasoline and dieselexhaust gas converters, as well as an additive to master batches which are processed in the car industiry for the interiour.

Types

The ZEOcat® product range includes high silica zeolites, such as various ZSM-5 types, Beta, Mordenite and Zeolite L , many of it manufactured to meet customized specifications, and are available both as powder and in various bead sizes.

ZEOcat® PENTASIL STRUCTURE ZEOLITES

High silica/alumina ratio ZSM-5 zeolites that are used as catalyst supports for many catalytic reactions (e. g. as FCC additive) and can also remove organics (VOC's) from gas and liquid streams even in the presence of water. Structure: Cubic crystal structure with straight 10-membered ring channels of 5.3x5.6 A. The channels are connected by sinusoidal channels of 5.1x5.5 A.

ZEOcat® MORDENITE CRYSTAL STRUCTURE ZEOLITE

A highly acid resistant adsorbent / catalyst which can be used for sour gas dehydration and as an acidic catalyst for production processes where conventional catalysts such as H2SO4 and AlCl3 are still typically used. Structure: Orthorhombic crystal structure with straight 12-membered ring channels of 6.5x7 A and crossed 8 memberer ring channels of 2.6x5.7 A.

ZEOcat® BETA CRYSTAL STRUCTURE ZEOLITE

A highly acidic zeolite catalyst to be used as a catalyst for various alkylation reactions where conventional catalysts such as H2SO4 and AlCl3 are still typically used.

Please ask for our PPT presentation "Industrial Zeolites for Catalytic Processes" or our HPZ brochure. (call +41 44 922 94 60) Some files are too big for being transitted electronically, therefore you can download the PFD file Brochure HPZ directly from the web.