Nova Chemicals (International) S.a.

Ross Donald Moreton

Benjamin Milton Shaw

Kamal Kamel Botros

James Arthur Auger

Craig Allan Hulet

Teresa Yuk Woon Leung

Amanda Dolores Murphy

Provided herein is a unidirectional blow down system for a high-pressure tubular reactor with a hyper that minimizes the tube wall metal temperature during a decomposition event wherein the system prevents the reactor walls from reaching a temperature capable of causing the tube metal to austenize. Also provided are methods of designing and methods of operating a unidirectional blowdown system.

Method for designing multi-valve uni-direction blowdown system for a high pressure tubular reactor

In the high pressure polymerization of ethylene homopolymers or copolymers, conditions in the high pressure recycle system may lead to the build-up of low molecular weight oligomers and waxes. Sequentially draining knock-out pots, located downstream of a high pressure separator, at regular intervals can reduce the build-up of low molecular weight oligomers and waxes during the high pressure polymerization of alpha olefins.

Mitigation of wax levels in the high pressure low density polyethylene process

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Sarnia, Canada

Ross Donald Moreton