Selective Hydrogenation Catalysts SeLene™ - Selective Hydrogenation Catalysts Family
High-performance selective hydrogenation catalysts dedicated to the petrochemical and refining industries, to purify highly valuable olefinic and aromatic streams produced by steam crackers and FCC units.
High activity, easy regeneration and highly competitive cost to fill are among the key advantages of these catalysts, which are selected depending on the feedstock characteristics, the unit design/limitations and the requested performances.
Axens Offer
SeLene™, Axens’ Selective Hydrogenation Catalysts Family, features the highest activity and lowest density on the selective hydrogenation catalyst market, allowing the highest level of performance while minimizing the cost to fill and maximizing energy cost savings.
More than 50 years in research and development and unit design have led to unmatched results with more than 750 worldwide license references and 850 worldwide catalysts references, for a cumulative onstream operating experience exceeding 30 MM hours.
C₂ Selective Hydrogenation
In addition to containing up to 90% ethylene, steam cracker C2 cuts contain from 0.5 to 3% acetylene. This highly unsaturated compound is undesirable in both chemical- and polymer-grade ethylene. The most elegant way to remove acetylene is via hydrogenation to ethylene.
LD 153
LD 153 is a promoted palladium on alumina catalyst used in acetylene removal from ethylene cuts produced by steam cracking.
It is dedicated to front end operation, and provides very good activity and very high selectivity.
Another interest of LD 153 is a much wider operating window compared to previous generation catalysts, minimizing the risk of temperature excursion in case of CO fluctuation in the feed.
LT 279
LT 279 is a promoted palladium on alumina catalyst used in acetylene removal from ethylene cuts produced by steam-cracking.
It can be used for front end operation where its low tendency to provoke runaway is of prime interest. It can also be used for tail end operation where its superior selectivity allows very high removal of acetylene with no loss of ethylene.
LT 279 is also available for methylacetylene and propadiene selective hydrogenation in the vapour phase process.
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