Description

The LLDPE/HDPE Fluidized Bed Gas Polymerization Pilot Plant is a modular unit designed for polyethylene process development. It operates at a nominal capacity of 30–50 kg of polymer per hour.  The plant is based on a gas-phase fluidized bed reactor technology. It enables the production of LLDPE using Ziegler-Natta or metallocene catalysts. Dry, pre-poly and slurry catalyst systems are fully supported and automated. Polymerization occurs in a vertical fluidized bed reactor with proprietary gas distribution. Reaction heat is removed through a recycle gas loop with integrated cooling. A centrifugal compressor ensures continuous circulation of reactor gases. Ethylene, hydrogen, nitrogen, and comonomers are precisely controlled. Optional condensing agents can be used to increase production rates. Polymer is continuously withdrawn as powder through a controlled discharge system. Residual hydrocarbons are removed in downstream degassing vessels. The unit includes gas purification and nitrogen management systems.