Hydrotreating Fundamentals

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Today’s refineries must supply ultra-low sulfur fuels to the markets, and the favored method for accomplishing this is hydrotreating. This process has reached a high level of importance due to these requirements. Optimum performance coupled with long run lengths is necessary for the current environment.
This course covers all aspects of this process, including overviews, process flows and chemistry, catalysts, equipment, and proper operation. The class has a practical, operational focus that is suitable for unit engineers, supervision and operators, both experienced and inexperienced.

What you will learn


  • Why hydrotreat?
  • History of the process
  • About hydrocarbons and petroleum fractions
  • About hydrogen
  • Hydrogen sulphide and ammonia
  • Refinery BFD review – how hydrotreating fits in
  • Unit economics review
  • Product specifications and properties

Process Chemistry

  • Hydrodesulphurization reactions
  • Hydrodenitrogenation reactions
  • Saturation reactions
  • Recombination
  • Other side reactions
  • Catalysts

Process Fundamentals and PSM

  • Important process variables
  • Six step flow diagram review
  • Hydrogen consumption
  • Operating conditions for various hydrotreaters
  • Process safety issues

Process Equipment

  • Reactors and internals
  • Separators
  • Strippers
  • Heat exchangers and furnaces
  • Hydrogen recovery

Operations and Technical Service

  • Performance evaluations
  • Feeds
  • WABT and catalyst life
  • Hydrogen purity
  • Equipment performance aspects

Your Instructor

Barry RobinsonBarry Robinson is Sr. Staff Engineer with Middough Inc., a Midwest engineering and construction firm. He has over 37 years of experience in the petroleum refining industry in various technical and managerial positions. He has extensive experience in major capital project design and execution, as well as refinery operations, training, and turnaround execution.

He has a strong technical and operating background in fluid catalytic and thermal cracking processes, along with their associated feed preparation and product separation units. He has experience in hydrotreating/ catalytic reforming operations as well.

He holds a BSChE from The Ohio State University and MBA from Bowling Green.

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