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Production of Paraxylene - Aromatic Loops

Production of Paraxylene - Aromatic Loops

5 days
PCH/ARO-E

  •  

Sessions
Dates Location Tuition Register
May 28 - Jun 01, 2018 Rueil 2,800 €
Online By email
Who should attend?

Audience

    • Engineers, senior operations personnel or technical supervisory staff interested or involved in the operation, optimization and monitoring of aromatics production units.
    • Engineers from research centers and engineering companies involved in the different aspects of the design and process control of these processes.

Level

  • Proficiency
  • This course provides a thorough technical understanding of aromatics production and paraxylene recovery.
Learning Objectives
  • Upon completion of the course, the participants will be able to:
  • assess the influence of operating parameters on a unit performance,
  • optimize the process for achieving the targeted yield in benzene, toluene and paraxylene,
  • detect potential deficiencies by troubleshooting in order to solve it easily.
Course Content

SOURCES, OUTLETS & MAIN INDUSTRIAL USES OF AROMATIC INTERMEDIATES

0.25 day

  • Main sources: catalytic reforming, steam cracker, coke oven gases.
  • Outlet and main uses of: benzene, toluene, ethylbenzene and xylenes.

AROMATICS COMPLEX SCHEMES

0.25 day

  • Available layouts related to downstream markets.
  • Naphtha to paraxylene typical scheme.
  • Alternate schemes.

AROMATICS ORIENTED CATALYTIC REFORMING

1 day

  • Technologies: semi-regenerative and regenerative (CCR).
  • Feedstocks - Yield - Severity - Products.
  • Operating parameters - Process flow diagram of a continuous catalytic reforming unit - Main equipment.
  • Reactions and catalyst - Chemical reactions: thermodynamics and kinetics.
  • Catalyst properties: role of the acidic and metallic functions.
  • Catalyst composition and selectivity, poisons and ageing factors. Catalyst regeneration.
  • Reformate splitter: Different schemes and purposes - C8 cut composition ex reformate.

AROMATICS - NON AROMATICS SEPARATION PROCESSES

0.75 day

  • Liquid-liquid extraction.
  • Extractive distillation: basic principle and applications in the petrochemical industry - Benzene Recovery Unit.
  • Advantages and drawbacks of both techniques. Available technologies.

SEPARATION OF AROMATICS BY CARBON NUMBER

0.25 day

  • Standard distillation: Benzene and Toluene fractionation columns, Xylenes Rerun column, Orthoxylene splitter, Heavy Aromatics column.

AROMATICS TRANSFORMATION

0.75 day

  • Overview of the aromatics transformation processes: hydrodealkylation, disproportionation, transalkylation, isomerization and toluene methylation.
  • Available technologies: focus on XyMax and TransPlus technologies.
  • Case study on several aromatics production typical schemes.

C8 AROMATICS SEPARATION

0.25 day

  • Crystallization.
  • Adsorption on solid (application to xylenes separation).

PARAXYLENE RECOVERY UNIT

1.25 days

  • Principles and details of the ELUXYL process: role of equipment; adsorption technique (solid specificity, solid behavior); main operating parameters.
  • Downstream separation: extract, raffinate, paraxylene purification, solvent rerun columns.
  • Available technologies: PAREX.

TREATMENT OF THE PYROLYSIS GASOLINE FROM THE STEAM CRACKER

0.25 day

  • Standard pyrolysis gasoline composition.
  • Treatment process schemes - Aromatics upgrading. Available technologies.
Ways & Means
  • Applications, teamwork, case studies and interactive workshops based on typical real situations.