For several decades, purifying units all over the world have been using our special SILIPORITE® product range, developed to treat all kinds of feedstocks.
Olefinic streams drying
Reliable solutions for any kind of process technology.
With more than a thousand tons already installed, SILIPORITE® Molecular Sieves, are widely used to dry cracked gas and olefin cuts in their gaseous or liquid phases. This process is critical, since fluids, after drying, are subjected to low temperature treatment. Any remaining water would cause freezing or the formation of hydrates. The immediate consequence would be an operational shutdown. CECA Molecular Sieves have been designed to provide reliable and consistent performance, ensuring a continuous and efficient process.
Critical issues in Cracked gas drying
A feature of the ethylene production industry is the diversity of cracked gas feedstocks and process technology.
Our desiccants are designed for and installed in both high and low pressure crackers. We have Molecular Sieves suitable to all kinds of feedstocks. Our special 3A products combine a high water adsorption capacity with minimum ethylene co-adsorption and excellent mechanical characteristics.
Polymerization units
Catalysts have an essential relationship with downstream equipment protection in the conversion processes. This type of unit requires efficient polymerization catalysts sensitive to low yet dangerous contents of sulfur, mercury, oxygenates and water. CECA provides efficient packages of adsorbents which combine SILIPORITE® Molecular Sieves and activated alumina designed for the purification of ethylene, butadiene and other feedstocks.
CECA has responded to another fundamental challenge: Required service life has dramatically increased in comparison with previous decades. Six years of continuous operation is now typical instead of three years. Our Molecular Sieves must perform at the same level during the entire life span of operations. We were the first to promote this approach and have worked hard to meet the needs for longer operating periods and to provide solutions with our adsorbent and design concepts.
To help us defining the best molecular sieves solution, please fill in the technical questionnaire and sent it back to us at siliporite@ceca.fr.