Energy efficient polyolefin process

摘要

A manufacturing system for producing polyolefin includes a polymerization reactor, a flash chamber, and a purge column. In certain embodiments, the purge column may receive a solids stream directly from the flash chamber. Further, the purge column may function as a feed tank for an extruder within an extrusion/loadout system. According to certain embodiments, the manufacturing system may be configured to consume less than 445 kilowatt-hours of energy per metric ton of polyolefin produced based on consumption of electricity, steam, and fuel gas.

主权项

1. A system, comprising:
a polymerization reactor configured to produce a slurry comprising polyolefin particles and a diluent; a coolant system configured to provide a coolant to a reactor jacket disposed along a portion of the polymerization reactor, wherein an outlet temperature of the coolant exiting the reactor jacket is about 15° F. or more greater than an inlet temperature of the coolant entering the reactor jacket; and one or more automation controllers configured to:
receive an input indicative of the outlet temperature of the coolant exiting the reactor jacket; andactivate an output to actuate the coolant system to provide the coolant to the reactor jacket based at least in part on the input to maintain the outlet temperature about 15° F. or more greater than the inlet temperature of the coolant entering the reactor jacket.