Gas Treatment Training

• Define gas treatment

• Explain the purpose of gas treatment

• Identify typical gas impurities

• Identify the main gas treatment processes

• Identify the location of treatment facilities in relation to the gas process stream

• Explain how water gets into gas streams

• Explain why natural gas is nearly always ‘saturated’ when it reaches surface facilities

• Explain the purpose of the Inlet separator / filtration system

• Identify the main problems associated with water in gas streams

• Explain how hydrates are formed

• Explain how hydrates can cause process problems

• Explain how corrosion occurs in wet gas streams

• Explain the effects of slugging in pipelines and process vessels

• Explain the effects of water freezing in refrigerated and cryogenic processes

• Explain why gas contracts and piping specifications impose limits on the amount of water in sales gas streams

• Define dehydration

• Explain the purpose of dehydrating hydrocarbon-based gas streams

• Define the term ‘dew point depression’

• Explain the importance of dew point depression in gas streams

• Define the term ‘desiccant’

• Identify the main types of liquid desiccant

• List the advantages of using Triethylene glycol (TEG) in gas dehydration

• Explain the principle of the TEG dehydration process

• Describe the TEG dehydration process

• Explain the purpose of the equipment used in the TEG plant

• List the advantages of ‘structured packing’ over trays in glycol contactor towers

• Identify the main operating parameters of a TEG plant

• Explain how the main operating parameters affect the TEG dehydration process

• Explain the relationship between dew point, contact temperature and TEG concentration

• Identify the different solid desiccants used in gas dehydration

• Describe the most commonly used solid desiccant used in gas dehydration

• Explain the difference between absorption and adsorption

• Explain how molecular sieves remove water from the gas stream

• Describe a typical molecular sieve process plant

• Explain the purpose of the molecular sieve process plant equipment

• Explain the molecular sieve dehydration process

• Explain the molecular sieve regeneration process

• Explain the various process cycles of a molecular sieve dehydration unit

• Explain the process control of molecular sieve dehydration unit

• Identify typical operating problems of a molecular sieve dehydration unit

• Compare the advantages and disadvantages of liquid and solid desiccant dehydration

• Identify alternative gas dehydration processes

• Explain how filter coalescers remove water from gas streams

• Explain how the Joule-Thompson (JT) effect can be used in gas dehydration

• Explain the Low Temperature Separation (LTS) process

• Explain the Low Temperature Extraction (LTX) process

• Explain the supersonic gas conditioning process

• Describe the IFPEXOLTM process

• Describe membrane separation dehydration

• Define the term ‘acid gas’

• Identify typical acid gases

• Explain the reason for removing acid gases from natural gas

• Identify the main methods of acid gas removal

• Explain the principle of amine-based acid gas removal

• Compare the different amine-based solvents

• Describe a typical amine process

• Explain the purpose of the equipment used in an amine unit

• Describe the main operating problems associated with amine units

• Identify the less common types of impurities found in raw gas streams

• Identify the various methods for removal of the less common types of impurities

• Explain how mercury is removed from a raw gas stream

Exam in the e-learning course

• Internet access - users will need a device with a web browser and internet connection

• System - runs on computers, tablets and mobile devices using Windows 7 and above and MAC OS devices running IOS 11 and above

• Browsers - Edge, Chrome, Firefox and Safari

• Minimum browser size – none

• Audio – requires device speaker or headphones