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Hydrotreatment Processes

4 days RAF/HDT-E
  • Engineers, senior operation personnel or technical supervisory staff interested or involved in the operation of hydrotreatment units.
  • Engineers from research centers and engineering companies involved in the different aspects of the operation and process control of these units.
  • To deepen understanding of the operating, monitoring and optimizing of hydrotreatment units.
Learning Objectives
  • To grasp the essence of hydrotreatment processes.
  • To analyze the operation and optimization of hydrotreatment units.
  • To manage the hydrogen balance in relation with the hydrogen network.
  • To learn about potential deficiencies and troubleshooting.
  • To learn how to meet main breakthroughs for ultra-low desulfurization requirements.
Ways and means
  • Applications, teamwork, case studies and interactive workshops based on typical real situations.
  • Potential use of a dynamic simulator.
Der Vortrag über dieses Thema kann auch auf Deutsch gehalten werden.

Objectives of hydrotreatment processes 0.5 day
  • Impurities in petroleum cuts and products; their impact on health, environment and on other refining processes. Highly refractory compounds.
  • Recent regulations and future trends: quality specifications of petroleum products and fuels in relationship with concerns mentioned above.
  • Aim of the various treatments with hydrogen and integration in the refining scheme: hydropurifications of straight run cuts, stabilization or saturation of cracked cuts.
Chemical reactions and hydrotreatment catalysts 1 day
  • Characteristics of the chemical reactions involved: thermodynamic and kinetic aspects, consequences on the operation of units, side reactions and optimum operating conditions to deplete their evolution, specific features of reversion reactions.
  • Characteristics of the catalysts for hydropurification and for hydrogenation: effect of molybdenum, cobalt and nickel, importance of the substrate, selection criteria for a hydrotreatment problem. Top gradings.
  • Loading of the catalyst. Internals in the reactor.
  • Presulfiding procedures: role, steps and details of the different methods.
Operation of a distillate hydrotreatment unit 0.75 day
  • Operating conditions and compositions of the main streams; mass balance and yields, sulfur balance and hydrogen balance and consumption.
  • Significance of the operating variables and their influence on the process: mean temperatures and profile, pressures, partial pressure of hydrogen, recycle rate, quench ratio, feed flow rate and space velocity.
  • Advanced process control and optimization of the process.
  • Management of the hydrogen network in the refinery. Effect of feed composition and origin.
  • Catalyst follow up and cycle length optimization, ageing and deactivation.
  • Regeneration steps and monitoring.
  • Maximizing the performances of the unit under constraints or limit conditions.
Disturbances, incidents and troubleshooting 1 day
  • Causes of quality decrease and corresponding actions.
  • Main automatic safety systems.
  • Feed pump failure, heater failure.
  • Compressor failure: fresh gas or recycle, adapted reaction and safe shut down.
Performance of the various hydrotreatment units 0.5 day
  • For each of the following processes, the operating parameters and the specific operating features are explained.
  • Naphtha desulfurization for catalytic reformer and isomerization feed.
  • Cracked gasoline treatments, special hydrotreatments for the FCC gasoline.
  • Stabilization of the pyrolysis gasoline.
  • Hydroisomerization of the C4 cut out of the FCC to feed alkylation unit.
  • Hydrotreatment of middle distillates: kerosene and gas-oil, LCO processing.
  • Desulfurization of vacuum gasoil to FCC units.
  • Residues demetallization processes.
  • Hydrotreatments in lube oil manufacturing.
  • Hydrogen manufacturing or enrichment processes.
Specific developments to meet the ultra-low desulfurization of gasoline and diesel fuels 0.25 day
  • High performance catalysts, grading materials, advantage of the dense loading, technology of the reactor and exchangers, operating conditions, recycle gas treatment, hydrogen purification, advanced process control.
2016 course calendar
Language Dates Location Tuition Register
Nov 07 - 10 Bahrain €2,680 Online By email