Polyolefin reactor system having a gas phase reactor and solids recovery

摘要

A system and method for a gas phase reactor to polymerize olefin into a polyolefin, and for a solids recovery system to separate solids from overhead gas discharged from the gas phase reactor and to return the solids to the gas phase reactor. A control system may perform a fluid flow calculation of the solids recovery system. The solids recovery system may employ a vertical motive device and/or horizontal motive device.

主权项

1. A method of operating a gas phase reactor system, the method comprising:
polymerizing olefin in a gas phase reactor into a polyolefin; discharging a discharge mixture from the gas phase reactor, the discharge mixture comprising gas and solids entrained in the gas from the gas phase reactor; separating the solids from the discharge mixture via a solids recovery system; measuring a pressure of a motive fluid supply to the solids recovery system; calculating a pressure drop in the solids recovery system; and adjusting the motive fluid supply in response to measuring the pressure and calculating the pressure drop.