This course brings technical information on the steamcracker sections focused on chemical transformations: feed cracking, cracked gas purification, hydrogenations or purification stages on a solid (drying).
Public :
Operating personnel in steamcracking plants: experienced filed operators, panel operators, shift leaders and all technicians involved in the operation of these sections.
Level :Skilled
Prerequisite :
To fulfill at least one of the following criteria:
to have 1 year of proven professional experience in a steamcracker complex,
or to be in the process of moving to a position linked to operation in an steamcracker complex.
Course Content
BLOCK DIAGRAM OF THE STEAMCRACKER UNIT
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Duration : 0.25 Day
Roles of the various sections.
Feedstock origins, products types, yields.
MAIN PETROCHEMICAL INTERMEDIATES
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Duration : 0.25 Day
Definition of hydrocarbon families. Feedstock composition.
Potential outlets and main industrial uses of olefinic, diolefinic and aromatics hydrocarbons.
CHEMICAL REACTIONS & CATALYSIS
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Duration : 1 Day
Chemical reactions, chemical reaction uses for the mass balance.
Studies of the thermodynamic conditions to make the chemical reaction feasible.
Chemical reactions limited by the chemical balance, rules to shift the chemical balance.
Rate of chemical reactions. Effect of a catalyst, catalyst behavior. Poisons and inhibitors.
Nota: these basic elements have been provided throughout the course as they enhance the understanding of the different topics.
STEAMCRACKING
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Duration : 1 Day
Onsite unit description; operating conditions of the different sections, product yields.
Analysis of technical characteristics of desired transformations.
Elements of pyrolysis monitoring: definitions of the severity and the selectivity.
Influence of the operating parameters/pressure, temperature, flowrate, steam dilution ratio on the unit performances.
Impact of the feedstock origin on product yields.
Regulation and advanced process control.
CRACKED GASES PURIFICATION
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Duration : 0.25 Day
Main washing systems for cracked gases: selection of systems implemented.
Amine washing system: absorption and regeneration.
Caustic washing system and treatment of waste caustic stream.
The sequence of washing stages in the scrubber.
Influence of the operating parameters on the quality of washing.
DRYING OF CRACKED GASES
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Duration : 0.25 Day
Adsorption-desorption balance.
Operation of cracked gases dryers during the drying and regeneration steps, drying optimization (temperature/run length relationship).
TREATMENTS WITH HYDROGEN
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Duration : 1.5 Days
Role and purpose of the different hydrogenation processes, chemical reaction characteristics, main types of catalysts implemented.
Purification of hydrogen by methanation (if relevant).
Studies of selective hydrogenation units for C2, C3 and C4 cuts and hydrotreatment units for pyrolysis gasolines: analysis of the operating conditions of the unit, operating parameters of the plant, case studies for unit adjustment.
DISTURBANCES - INCIDENTS
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Duration : 0.5 Day
Incidents on the furnace: loss of feed flowrate, high temperature on one or more coils - Loss of firing - Loss of quench water…
Incidents on cracked gases scrubber : loss of caustic make-up, abnormal temperature of the caustic, loss of water washing at the top of the scrubber.
Incidents on dryers: insufficient regeneration, moist gas at outlet.
Incidents in the methanation section (if relevant): loss of the cold box and breakthrough of ethylene to the reactor.
Incidents on selective hydrogenations: management of feedstock inhibitors, changes of hydrogen quality, loss of catalyst activity and/or selectivity.
Nota: this part is delivered through case studies and analysis of feedback of on-site incidents.
Learning Objectives
Attendees will be able to implement the following skills:
Identify key physicochemical characteristics of the process,
Describe the process steps,
Justify process and operating safety measures.
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.
Case studies done in groups based on typical running situations presented in the course.
Possible contribution of experienced staff in the daily operation of the plant.
Learning assessment
Quiz.
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Coordinator :IFP Training trainer (permanent or contracted) having a good expertise and/or experience of the related topics, trained to adult teaching methods, and whose competencies are kept up-to-date.
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
