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Gas Dehydration System Design

20 – 24 Jan. 2025Abu Dhabi20 – 24 Oct. 2025Dubai13 – 17 Oct. 2025Abu Dhabi


Course Objectives:

By the end of this training, participants will be able to:

1. Fundamentals of Gas Dehydration

  • Understand the importance of gas dehydration in natural gas processing and transportation.
  • Explain the effects of water vapor in gas streams, including hydrate formation, pipeline corrosion, and process inefficiencies.
  • Define key process parameters, including dew point, water content, and gas composition.

2. Types of Gas Dehydration Methods and Selection Criteria

  • Compare different dehydration techniques and their applications:
    • Absorption Method (Glycol Dehydration)
      • TEG (Triethylene Glycol) vs. DEG (Diethylene Glycol) vs. MEG (Monoethylene Glycol)
    • Adsorption Method (Solid Desiccant Dehydration)
      • Molecular sieves, silica gel, activated alumina
    • Membrane Dehydration
      • Selective water vapor permeation
    • Refrigeration-Based Dehydration
      • Low-temperature separation and hydrate suppression
  • Select the appropriate dehydration technology based on gas composition, flow rate, and environmental considerations.

3. Gas Dehydration System Design and Key Components

  • Glycol Dehydration System:
    • Gas/glycol contactor tower design
    • Glycol regeneration system (reboiler, heat exchangers, flash separators)
    • Filtration and foaming control strategies
  • Solid Desiccant Dehydration System:
    • Adsorber tower design and switching cycles
    • Regeneration process for molecular sieves
    • Desiccant bed selection based on gas specifications
  • Membrane and Refrigeration Systems:
    • Membrane material selection and process limitations
    • Cold box and Joule-Thomson (JT) valve dehydration process

4. Process Optimization and Performance Enhancement

  • Identify key operating parameters affecting dehydration efficiency.
  • Implement energy-saving measures and heat integration strategies.
  • Optimize glycol circulation rates, regenerator temperatures, and contactor pressures.
  • Explore automation and real-time monitoring techniques for process optimization.

5. Environmental, Safety, and Regulatory Compliance

  • Identify safety risks in gas dehydration, including glycol losses, H₂S contamination, and VOC emissions.
  • Apply industry best practices for fire and explosion safety in glycol dehydration units.
  • Understand environmental regulations for VOC emissions and BTEX (Benzene, Toluene, Ethylbenzene, Xylene) removal.
  • Explore waste management strategies for spent desiccants and contaminated glycol.

6. Troubleshooting and Case Studies

  • Study real-world gas dehydration system failures and troubleshooting methodologies.
  • Develop systematic problem-solving approaches for issues like foaming, glycol degradation, and inefficient dehydration.
  • Apply reliability-centered maintenance strategies to ensure continuous and efficient operations.

 

Target Audience

This course is designed for professionals involved in gas processing, natural gas transportation, and industrial gas treatment, including:

1. Engineers & Technical Personnel

  • Process Engineers
  • Mechanical Engineers
  • Chemical Engineers
  • Instrumentation & Control Engineers

2. Operations & Maintenance Teams

  • Gas Dehydration Unit Operators
  • Maintenance Engineers
  • Reliability Engineers