SYSTEM AND METHOD FOR DETERRING FOULING IN A POLYMERIZATION REACTOR

摘要

A catalyst composition may include a precontacted mixture of an olefin polymerization catalyst and an agent including an ammonium salt. The catalyst activity of the catalyst composition in the presence of water may be greater than if no ammonium salt were present in the catalyst composition. The ammonium salt may include a tetraalkylammonium salt, and the olefin polymerization catalyst may include a metallocene compound.

主权项

1. A method, comprising:
introducing a catalyst composition formed within a precontactor into a polymerization zone of a polymerization reactor; and polymerizing, within the polymerization zone, an olefin monomer using the catalyst composition to produce a polyolefin polymer; and wherein the catalyst composition formed within the precontactor comprises a contact product of contact components comprising:
an olefin polymerization catalyst; andan agent comprising an ammonium salt, wherein the catalyst composition has a greater catalyst activity in the presence of water than if no ammonium salt were present.