C4 Cut: Valorization RoutesPCH/C4CUT-E

Who should attend?

  • This course provides a better understanding of the different routes to upgrade a raw C4 cut coming out a steamcracker.
Audience :
  • Anyone involved in C4 cut treatment from operating staff to traders.

Level : Foundation

Course Content

  • ORIGIN & ECONOMICS OF THE C4 CUT

      • Simplified scheme of C4 cut production.
      • Standard composition of the C4 cut: hydrocarbon nature, typical concentration depending on the severity of the source process.
      • Main uses of the C4 hydrocarbons.
  • UPGRADING SCHEMES

      • Several options.
      • How to select the right one.
  • 1,3-BUTADIENE RECOVERY

      • Comparison of standard distillation conditions and extractive distillation.
      • Constraints of an extractive distillation process. Solutions available to tackle the issues.
      • Case based on a pre-feed hydrogenation treatment of the extractive distillation.
      • Principle of the implementation of the selective hydrogenation and limitation of the treatment - Consequences.
      • Configurations available: extractive distillation in 1 step or in 2 steps.
      • 1-3 butadiene on specification - Superfractionation.
  • RAFFINATE-1 TREATMENT - UPGRADING OF ISOBUTENE

      • Several options- How to select the right one.
      • MTBE or ETBE production scheme. Process characteristics.
  • RAFFINATE-2 TREATMENT - UPGRADING OF BUTENES

      • Several options - How to select the right one.
      • 1-butene and 2-butenes production schemes.

Learning Objectives

  • Upon completion of the course, the participants will be able to:
  • quote the differences among the hydrocarbon of the C4 cut,
  • list the economic interests,
  • precise the role of the separation and transformation processes implemented in the C4 cut treatment.

Ways & Means

  • Notions illustrated thanks to some pictures.