Deactivation of drier material for olefin reactions
AssigneeExxon Chemical Products Inc.
InventorsWilliam G. DePierri, Michael F. McDonald, Jr., Albert E. Schweizer
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Abstract
A process for reducing the loss of monomers from a polymerization recycle stream comprising steam treating a molecular sieve used to dry the recycle stream to remove acidic sites within the sieve. The steam treatment is conducted at a temperature of between 150.degree. C. and 300.degree. C. for 2 to 24 hours.
Claims3
A method of preventing olefin monomer polymerization from a regenerated molecular sieve when drying an olefin containing polymerization solvent recycle stream said method comprising steam treating the previously regenerated seive with steam for a sufficient time at a temperature between about 150.degree. C. to about 300.degree. C. and sufficient water partial pressure to remove potential polymerization sites.
Dependencies are inferred from the claim text.