Mitigation of Catalyst Inhibition in Olefin Polymerization

摘要

This disclosure relates to a process for polymerization comprising providing a recycle stream, wherein the recycle stream comprises one or more C6 to C12 conjugated or non-conjugated diene monomers and one or more C1 to C40 oxygenates. The recycle stream is contacted with an adsorbent bed to produce a treated recycle stream; wherein the adsorbent bed comprises at least two adsorbents to remove quenching agent and C1 to C40 oxygenates.

主权项

1. A process for polymerization comprising:
(i) providing a polyolefin product stream, wherein the polyolefin product stream comprises polyolefin product and unreacted monomer; (ii) quenching the polyolefin product stream with a quenching agent selected from water, a C1 to C8 alcohol, and mixtures thereof, to produce a quenched polyolefin stream, (iii) separating the quenched polyolefin stream into polyolefin product and a recycle stream; and (iv) contacting at least a portion of the recycle stream with an adsorbent bed to produce a treated recycle stream, wherein the recycle stream comprises quenching agent, one or more C6 to C12 conjugated or non-conjugated diene monomers, and one or more C1 to C40 oxygenates, and wherein the adsorbent bed comprises at least two adsorbents to remove the quenching agent and/or the C1 to C40 oxygenates.