Catalytic Reforming for Refining & Petrochemicals

RAF/CAREF-E

Who should attend?

  • This course provides a thorough technical understanding of semi-regenerative and continuous regenerative catalytic reforming processes, for refining and petrochemistry.
Audience :
  • Engineers, senior operations personnel or technical supervisory staff involved in the operation, optimization or monitoring of hydrogen and aromatics production units.
  • Engineers from research centers and engineering companies involved in the different aspects of the operation and process control of these processes.

Level : Proficiency

Course Content

  • THE CATALYTIC REFORMER WITHIN THE REFINERY SCHEME

      • Quality specifications of gasolines; reformulated gasoline and future trends.
      • Octane improving processes, integration within the refining processes.
      • Needs in hydrogen. Aromatic complex overview, need for benzene, toluene and xylenes.
  • CATALYTIC REFORMING REACTIONS & CATALYSTS

      • Review of the characteristics of all the chemical reactions: thermodynamics and kinetics.
      • Influence of the operating parameters on the production of aromatics, hydrogen, octane number, and other yields. Consequences for SR and CCR units.
      • Catalyst properties: role of the acidic and metallic functions, of the support, of the different promotors and their impact on chemical reactions and yields. Water/chlorine balance and management.
      • Poisons and ageing factors. Activity follow up and cycle length prediction for semi-regenerative units.
      • Catalyst regeneration. Management of each step for an optimal activity recovery for SR units. Operating parameters for CCR regeneration loops.
  • OPERATING PARAMETERS OF A CATALYTIC REFORMER

      • Process flow diagrams and operating parameters of semi-regenerative (SR) and Continuous Catalyst Regeneration (CCR) units. Main control loops. Typical range of yields.
      • Material balance. Energy consumption.
      • Operating variables : WABT, WAIT, H2/HC ratio, flow rates, treat gas characteristics.
      • Main equipment and metallurgy
      • Specific features for low pressure equipment. Moving bed technology, recontacting section, catalyst circulation: lifts, ∆P control, seal legs, nitrogen loops for regeneration, etc.
      • Analyzers and process control.
  • OPERATION & OPTIMIZATION FOR CATALYTIC REFORMING

      • Monitoring the operating variables and optimization, for semi-regenerative and regenerative units. Operation case studies.
      • Adjusting to changes in feedstocks origins, N+2A.
      • High severity of the CCR towards optimized yield in Aromatics. Performance follow-up.
      • Maximizing the performances of the unit under constraints or limit conditions.
      • Main steps for start-up and shutdown.
  • TROUBLESHOOTING FOR CATALYTIC REFORMING

      • Case studies: main symptoms encountered in operation, diagnosis and remedies.
      • Specific troubles of CCR units linked to catalyst circulation and regeneration loops.
      • Catalyst regeneration problems.
      • ESD, main safety sequences.
  • THE REFORMER IN THE AROMATIC COMPLEX

      • Outlets and main uses of BX (Benzene, Xylenes), ethylbenzene.
      • Basic scheme to upgrade benzene and paraxylene. Aromatic loop.
      • Transformation processes involved: hydrodealkylation, disproportionation, transalkylation and isomerization. Associated separation processes.
      • Operating conditions for a typical arrangement.

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 to achieve the targeted yield in BTX, from the design to the operation,
  • distinguish between the specificities of semi-regenerative and continuously regenerative units, depending on the refining or petrochemistry environment,
  • grasp the essence of catalyst regeneration,
  • detect potential deficiencies by troubleshooting,
  • acquire the best practices for unit start-up, normal operation and shutdown,
  • analyze the optimization process options of an aromatic complex.

Ways & Means

  • Applications, teamwork, case studies and interactive workshops based on typical real situations.