POLYOLPHIN MANUFACTURING PROCEDURES IN A FLIGHT CONTRACTOR UNDER TURBULENT CONDITIONS AND CONDITIONS OF RETURN POWER

摘要

Method of achieving a high level of liquid in recycle fluid in the operation of a fluidized bed olefin polymerization reactor comprising adjusting conditions in said reactor to pass from a bubbling operating mode with a condensing liquid level in said recycle fluid of less than 17.5 weight percent to a turbulent operating mode, and increasing the liquid level in said recycle fluid to at least 17.5 weight percent.