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Hydrotreatment Processes

Hydrotreatment Processes

4 days
RAF/HDTS-E
Sessions
This course is not scheduled.
Who should attend?

Audience

    • Shift leaders, panel operators and experienced operators in charge of the operation of hydrotreatment units.

Level

  • Proficiency
  • This course provides a better understanding of the operation of hydrotreatment units and helps participants to be better prepared to deal with disturbed situations.
Learning Objectives
  • Upon completion of the course, the participants will be able to:
  • know the operation and optimization of the steady state operation of the HDT unit,
  • understand the phenomenon involved in deviations or troubles,
  • react in the correct direction to restabilize this process.
Course Content

STUDY OF INITIAL SIMULATED STEADY CASE

1 day

  • Position and role of each process.
  • Characteristics, composition and properties of process streams, operating conditions.
  • Functioning of unit and equipment: main process scheme, operating circuits, main pieces of equipment, control systems.
  • Significance of the process parameters of the units: mass balance, temperatures, pressures, recycle flow rate, amine washing flow rates (if any), recontacting system.
  • Operating conditions related to various operating cases (different feed composition).
  • Heat balance and heat integration.
  • Profile of important parameters along the unit (pressure, temperatures).
  • Analytical survey.

REMINDING ON THE MAIN OPERATING PARAMETERS & RELATED IMPACT

1.5 days

  • Reactor temperatures, pressure drop and H2 partial pressure, recycle rate, quench ratio, recontacting ratio…
  • Feed composition according to origins of constituents.
  • Severity of different processes according to feed and products specifications.
  • Their impact on operation of the process illustrated with the simulator handlings.

OPERATION OF THE UNIT: SIMULATED PROCESS OPTIMIZATION

1 day

  • Protection of the catalyst along a run.
  • Give away and how to avoid it.
  • Optimization of stripping and drying operation.

TROUBLESHOOTING

1.5 days

  • Risks and hazards related to the process.
  • Safety and ESD system, SIS study.
  • Operating deviations:
  • Feed or hydrogen composition rash change.
  • Amine washing failure, heater failure.
  • Make-up gas or recycle gas compressor failure, feed pump failure.
  • Start-up procedures: main steps and explanation of the role of each step.
Ways & Means
  • Each case study with the simulator consists of the following steps:
  • objective of the case study, action by the trainees: operation/settings, stabilization,
  • study of final state and operating conditions: operating parameters, composition and characteristics of process flows,
  • mass balance, ratios, heat balance, operating conditions and performance,
  • consequences for operation policy.