This course provides a deeper technical understanding of an extractive distillation column, its principle and consequences on the operation of the whole unit.
Public :
Anyone involved in the operation/troubleshooting of extractive distillation columns (process/operation engineers, shift leaders, panel operators, field operators).
Level :Skilled
Prerequisite :
To fulfill at least one of the following criteria: to have at least 1 year's proven experience in a refinery or chemical or petrochemical site equipped with distillation columns.
Course Content
SOLVENT EFFECT ON VAPOR-LIQUID EQUILIBRIA
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Duration : 0.75 Day
Typical composition of cuts to be processes: C4 and C6 cuts of a steamcracker or other units.
Natural volatility of compounds and focus on impurities to be removed, highlighting constraints and available processes.
Action of the solvent and effects on relative volatilities of the compounds to be separated.
Effects of pressure, solvent ratio and feed composition.
BEHAVIOR OF AN EXTRACTIVE DISTILLATION COLUMN
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Duration : 0.75 Day
Feed composition. Required specifications.
Mass balance, product recovery ratio, losses of solvent.
Analysis of operating parameters: pressure and its pressure control system, solvent ratio, solvent temperature, thermal balance and vapor-liquid traffics.
Concentration profile: hydrocarbons and solvent, behaviors in extractive and non-extractive zones.
Meaning of temperatures and of temperature profile.
DOWNSTREAM PROCESSES
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Duration : 0.5 Day
Solvent recovery system and purification.
Make-up of solvent and adjustment of its composition in the solvent loop.
Superfractionation if needed.
OPERATING VARIABLES OF AN EXTRACTIVE DISTILLATION COLUMN
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Duration : 0.5 Day
Instrumentation and process control scheme.
Meaning of controlled parameters.
Impact of the modification of: solvent ratio, reboiler ratio, solvent composition and temperature and other parameters depending on the process configuration. Consequences on the yields, the composition of products and the energy consumption.
TROUBLESHOOTING & PROCESS INCIDENTS
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Duration : 0.5 Day
Solvent: decrease in flowrate, temperature modification, regeneration failure.
Feed: unexpected change in flowrate or composition.
Learning Objectives
Attendees will be able to implement the following skills:
Describe the role of the solvent and the functioning of the different extractive or non-extractive zones,
Explain the influence of each parameter on the conduct of the column and on the quality of the separation,
Identify the most frequent malfunctions and incidents.
Ways & Means
The content of this course can be adapted to the customer's needs. The pedagogy is focused on the units concerned, under cover of a secrecy agreement if necessary.
Implementation of static simulation results with C4/ACN and C6/NMP processes.
The case studies are dealt with in group and based on typical situations encountered in the operation of the related process units.
Learning assessment
Quiz.
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Coordinator :IFP Training instructors, with expertise in the field and trained in modern teaching methods adapted to the specific needs of learners from the professional world.
To French entities : IFP Training is referenced to DataDock ; you may contact your OPCO about potential funding.
Please contact our disabled persons referent to check the accessibility of this training program : referent.handicap@ifptraining.com
IFPT Account
