Technology

In combination with LyondellBasell’s Avant Catalysts, the Spherizone process produces spherical Polymer Particles directly in the Reactor. The specially designed Loop Reactor consists of two Reaction Zones, and the growing Polymer Granules are circulated between the two different zones of the Multi-zone Circulating Reactor (MZCR). In the Riser zone, the Polymer Particles are entrained upward through a fast Fluidization regime in the Monomer Gas flow. At the top of the Reactor, the Polymer Particles then enter the Downer zone, where a downward, dense phase Plug Flow pattern occurs under gravity.

Source: LyondellBasell, Technology, Spherizone brochure.