Reactor Engineering

GCA/REACT-E

Who should attend?

  • This course provides a thorough understanding of reactor engineering and the use of multiphase flow reactors in processing plants.
Audience :
  • Engineers and engineering staff in charge of designing or operating reactors in the oil refining industry.

Level : Advanced

Course Content

  • REACTOR ENGINEERING: MANIFOLD REACTORS

      • The importance of multiphase flow, catalyst shape, contact and reaction parameters, e.g. contact time, reaction kinetics, heat of reaction, deactivation.
      • Overview and analysis of these parameters through several examples of refining processes.
  • REACTOR ENGINEERING: FUNDAMENTALS

      • Ideal reactors: ideal concepts and theory of flow through reactors (CSTR and plug flow reactors, CSTRs in series, axial dispersion, etc.). Residence time distribution; analysis to characterize real systems.
      • External mass transfer limitations: mass transfer concept and theory through gas-liquid interphase in reactive and non-reactive systems.
      • Determination of limiting step: chemical kinetics, internal diffusion, external transfer. Consequences on reactor performance.
      • Examples.
  • GAS-LIQUID TRICKLE BED REACTORS (focus on HDT)

      • Multiphase flow through fixed bed on trickle bed in relation to hydrotreatment HDT processes.
      • Main features and variables of HDT processes in the refining industry.
      • Flow regimes (trickle flow, pulsed flow, bubble flow); discussion on mapping as a function of operating conditions.
      • Relevant fixed bed properties (bed density and particle size) as well as their impact on operation.
      • Pressure drop throughout the bed as a function of operating conditions. Fluid and bed properties; presentation of different models and correlations. Discussion.
      • Mass transfer limitation in the specific HDT case.
      • Design considerations. Understanding of the role of internals (tray distributors, quench systems).
      • Simple calculation methods enabling the estimation of reactor performances.
  • GAS-SOLID FLUIDIZED BED & CIRCULATING FLUIDIZED BEDS (focus on FCC)

      • FCC application: fluidized bed and circulating fluidized beds. Main features and variables of FCC processes in the refining industry.
      • Fluidization regimes and mapping as a function of operating conditions. Bubble properties and relevance on fluidized bed operation. Correlations are provided to estimate and describe fluidized bed hydrodynamics.
      • Specific technologies related to fluidized bed and circulating fluidized beds:
      • Standpipes enabling large catalyst circulation.
      • Gas distributors such as perforated plates, bubble caps, spargers and rings.
      • Gas-solid separation systems such as negative or positive pressure cyclones.
      • Pressure balance of a circulating fluidized bed.
  • GAS-LIQUID SOLID FLUIDIZED BED (focus on hydroconversion & Fischer-Tropsch)

      • Three phase fluidized bed: mainly hydroconversion and Fischer-Tropsch applications.
      • Ebullated bed involving fluidization of large particles: flow regimes, influence of operating conditions and particle properties, description of bed hydrodynamics.
      • Slurry reactors involving fluidization of small particles: flow regimes, influence of operating conditions and particle properties, description of bed hydrodynamics.

Learning Objectives

  • Upon completion of the course, the participants will be able to:
  • identify the different types of multiphase reactors and their operating parameters,
  • learn about gas liquid trickle bed reactor, gas-solid fluidized bed and gas-liquid-solid fluidized bed, including flow regimes and technologies, in relation to processes such as hydrotreatment of distillates, hydroconversion of residue, FCC and Fischer Tropsch.

Ways & Means

  • Numerous industry-based case studies.