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Sessions
This course is not scheduled.
Who should attend?

Audience

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

Level

  • Proficiency
  • This course provides a thorough understanding of various isomerization processes and how to optimize the operation of this unit, particularly the reaction and recycle sections.
Learning Objectives
  • Upon completion of the course, the participants will be able to:
  • assess the influence of operating parameters on a unit performance through an analysis of the catalyst's activity,
  • detect potential deficiencies by troubleshooting,
  • acquire the best practices for unit start-up, normal operation and shutdown.
Course Content

THE ISOMERIZATION PROCESS IN THE REFINERY OCTANE POOL

0.75 day

  • Quality specifications of gasolines, reformulated gasoline and future trends.
  • Octane improving processes, and place and role of isomerate in the octane pool.
  • Comparison of different types of isomerization processes and performances, integration within the refining processes.
  • Feedstock and product properties, minimum benzene schemes.

ISOMERIZATION CHEMICAL REACTIONS & CATALYSTS

0.25 day

  • Review of the characteristics of the chemical reactions. Thermodynamics and kinetics considerations for optimization of the yield. Influence of the operating parameters and reactors arrangement.
  • Characteristics of the different generations of catalysts. Contaminants and poisons, consequences on the process arrangement. Operating precautions.

OPERATING PARAMETERS

0.25 day

  • Process flow and parameters of an isomerization unit, for the three main categories of catalysts.
  • Material balance.
  • Operating variables: temperature and temperature profile, difference of temperature, H2/HC ratio, flow rates, feed and make-up gas characteristics, recycle flow rates (H2 or low octane paraffins).

OPERATION & TROUBLESHOOTING

0.75 day

  • Unit operation: influence of operating variables on performance catalyst activity monitoring.
  • Operation of the separation sections (deisohexanizer, molecular sieves, etc.) and monitoring of the recycle of the paraffins with low octane number.
  • Optimization criteria. Maximizing the performances of the unit under limit conditions.
  • Disturbances: diagnosis, causes and remedies (RON decrease, moisture in the feed, high benzene in the feed, sulfur peak, chlorine peak, recycle or separation issues).
  • Reactor temperature run-off.
  • Main steps of start-up and shutdown.
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Ways & Means
  • Applications, teamwork, case studies and interactive workshops based on typical real situations.