Polymerisation Reactors and Hyper Compressors

Overview

Polymerisation reactors are the core of polyethylene and polypropylene plants, where ethylene and propylene monomers are converted into polymers with tightly controlled properties. Low-density polyethylene plants use hyper compressors to reach pressures above 2,000 bar, while gas-phase, slurry and loop reactors operate at lower pressures with sophisticated catalyst systems. These units involve highly exothermic reactions, flammable gases, extreme pressures and large rotating machines. Runaway reactions, decompositions, sheeting, fouling and compressor failures can cause off-grade production, long outages and serious safety incidents.

This course provides a practical understanding of polymerisation reactor technology and the operation of hyper and secondary compressors. Participants learn polymerisation chemistry, catalysts and initiators, reactor types including autoclave and tubular LDPE reactors, gas-phase fluidised bed reactors and slurry loop reactors, and the control of molecular weight, density and melt index. The course covers heat removal, reactor stability, decomposition and runaway prevention, emergency kill systems and pressure relief. It also explains hyper compressor design, cylinders, plungers, packings and valves, lubrication, monitoring and maintenance, together with grade transitions, troubleshooting, process safety and reliability improvement in polymer plants.

Objectives

• Explain polymerisation chemistry, catalysts and initiators used in polyolefin plants
• Compare autoclave, tubular, gas-phase and loop reactor technologies
• Control molecular weight, density and melt index through reactor variables
• Manage heat removal, reactor stability and the prevention of runaway reactions
• Understand emergency kill systems, decomposition protection and relief
• Operate and monitor hyper and secondary compressors safely
• Plan maintenance, grade transitions and troubleshooting for reactor sections

Who should attend

Training methodology

The course combines explanation of reactor chemistry and equipment with analysis of real operating data, control strategies and incident reports. Participants evaluate reactor temperature and pressure trends, calculate heat removal requirements, link operating variables to product properties and review emergency kill and relief arrangements. Hyper compressor performance and monitoring data are analysed to identify packing, valve and plunger problems. Photographs and videos of reactor and compressor internals support learning. Case studies of decompositions and compressor failures are analysed in groups, and each day ends with a short quiz.

Programme outline

Dates and fees

Certificate

Frequently asked questions