Fortis® Butadiene Popcorn Polymer Inhibitors

The purification section of the butadiene unit is very similar for all extraction processes. Most of the time, there are two towers that, through a straight distillation, separate the butadiene from the light and the heavies components that were not eliminated in the previous extraction step.

Given the high butadiene concentration level, this section experiences a specific fouling issue. Fouling material tends to be brittle, hard butadiene polymeric material. This material is typically made in vapor spaces and is commonly identified as popcorn polymer.

Popcorn Characteristics:

  • Highly cross-linked butadiene polymer.
  • Formed by a free radical polymerization mechanism.
  • Contains unstable free radical sites that can promote further growth.
  • Breaks when it reaches “critical mass” due to internal stress.
  • Inflammable (auto-ignited)
  • Can cause serious damage to equipment internals

To prevent popcorn growth, Nalco can help you identify key best practices and benchmark your unit with other peers via our Best Practice Gap Analysis audit™ approach.

Contact us for a preliminary discussion of any of your butadiene plant limitations.