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Catalytic Reforming for Refining & Petrochemicals

5 days RAF/CAREF-E
  • Engineers, senior operations personnel or technical supervisory staff interested or involved in the operation, optimization and 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.
  • To provide a thorough technical understanding of semi-regenerative or continuous regenerative catalytic reforming processes, for refining and petrochemicals.
  • To enable optimization and troubleshooting.
Learning Objectives
  • To assess the influence of operating parameters on a unit performance.
  • To optimize the process to achieve the targeted yield in BTX, from the design to the operation.
  • To grasp the essence of catalyst regeneration.
  • To learn about potential upsets and troubleshooting.
  • To acquire the best practices for unit start-up, normal operation and shutdown.
Ways and means
  • Applications, teamwork, case studies and interactive workshops based on typical real situations.
Der Vortrag ├╝ber dieses Thema kann auch auf Deutsch gehalten werden.

The catalytic reformer within the refinery scheme 0.5 day
  • 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.
  • Influence of feedstocks origins and characteristics on the performances of the units: IBP, FBP, composition (N,A, etc.), physical properties, impurities content.
  • Current yields and properties of the reformate in relation with severity.
Operating parameters of a catalytic reformer 1 day
  • Process flow diagrams and operating parameters of a catalytic reforming unit: semi-regenerative and continuous regenerative. Main control loops.
  • Material balance. Energy consumption.
  • Semi-regenerative processes
  • Operating variables: WABT, WAIT, H2/HC ratio, flow rates, water and chlorine injection, recycle gas and hydrogen rich gas characteristics, flash drum conditions.
  • Main equipment and metallurgy: features of reactors, heat exchangers and furnace technology, corrosion issues.
  • Low pressure technology: continuous regenerative processes
  • Low pressure equipment, recontacting section, catalyst circulation: lifts, ∆P control, seal legs, nitrogen loops for regeneration, etc.
  • Analyzers and process control.
Catalytic reforming reactions and catalysts 1 day
  • 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 semi-regenerative and continuous regenerative processes.
  • Catalyst properties: role of the acidic and metallic functions, of the support, of the different promoters and their impact on chemical reactions and yields. Water/chlorine balance and management.
  • Catalyst composition and selectivity, poisons and ageing factors.
  • Catalyst activity follow up and cycle length prediction for semi-regenerative units.
  • Catalyst regeneration. Role of each step for an optimal activity. Operating parameters for CCR regeneration loops.
Operation and optimization for catalytic reforming 1 day
  • Unit operation: monitoring the operating variables and optimization, for semi-regenerative and regenerative units. Operation case studies.
  • Flexibility of the continuous process. 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 0.5 day
  • RON or aromatic content decrease: causes, diagnostic and remedies.
  • Moisture in the feed, sulfur peak, chlorine peak: diagnosis and remedies.
  • Recycle or separation problems, recycle gas analysis.
  • Reactor temperature run-off.
  • Specific troubles of CCR units: catalyst circulation, regeneration loops, chilling system, nitrogen lift pollution.
  • CCR operation with catalyst regeneration problems.
From a refining tool to a petrochemical tool 1 day
  • Outlets and main use of BX (Benzene, Xylenes), ethylbenzene.
  • Technical key points to manage with: catalytical, operating conditions in order to adapt the catalytic reforming unit.
  • Basic scheme to upgrade benzene and paraxylene.
  • Benzene recovery unit: implementation of an extractive distillation section. Solvents available. Economical aspects.
  • Operating conditions. Main operating key points during start-up & shutdown.
  • Main operating variables and parameters.
  • Implementation of an aromatic loop: addition of an isomerization section to optimize the paraxylene recovery unit.
  • Operating conditions. Main operating key points during start-up and shutdown. Main operating variables and parameters.