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GLYCOL DEHYDRATION  PACKAGE

A glycol dehydration modular process skid is a self-contained and pre-assembled unit designed for removing water vapor from natural gas streams. These skids are commonly used in natural gas processing plants, production facilities, and pipeline systems to ensure the gas meets the required dew point specifications for transportation and downstream processes.

GLYCOL DEHYDRATION  PACKAGE

Glycol Dehydration modular package of capacity 84000 BPD

A typical glycol dehydration modular process skid consists of the following key components:

 

➣ Glycol contactor: The main component of the skid is the glycol contactor, which is a vertical column or vessel where the natural gas stream encounters a liquid desiccant, typically triethylene glycol (TEG) or diethylene glycol (DEG). The glycol absorbs the water vapor from the natural gas as it flows counter currently through the contactor.
 

➣ Glycol regeneration system: This system is responsible for regenerating the rich (water-saturated) glycol solution by removing the absorbed water. It typically consists of: a. Glycol reboiler or regeneration column: A heat source (e.g., a fired reboiler or a heat exchanger) is used to vaporize the absorbed water from the rich glycol solution, producing a lean (dry) glycol solution. b. Condenser and glycol cooler: The water vapor from the regeneration column is condensed and separated, while the lean glycol solution is cooled before being recirculated back to the contactor.
 

➣ Glycol circulation pumps: Pumps are used to circulate the lean and rich glycol streams between the contactor and the regeneration system.
 

➣ Glycol flash tank: A flash tank may be included to remove any dissolved gases from the rich glycol stream before it enters the regeneration system.
 

➣ Heat exchangers: Various heat exchangers may be incorporated for efficient energy recovery and temperature control of the glycol streams.
 

➣ Instrumentation and controls: The skid consists of instrumentation such as pressure gauges, temperature sensors, flow meters, and level indicators, along with a control system for monitoring and managing the dehydration process.
 

➣ Piping and valves: Appropriate piping and valves are included for the inlet and outlet gas streams, as well as for the glycol circulation and ancillary systems.
 

➣ Skid structure: The entire assembly is mounted on a skid or base, which enables easy transportation, installation, and relocation of the unit.

 

GLYCOL DEHYDRATION PROCESS
 

➣ A glycol dehydration unit is a process unit used in the natural gas industry to remove water vapor from natural gas streams. It is an essential component in natural gas processing plants and pipeline systems, as the presence of water vapor in natural gas can lead to various problems, including hydrate formation, corrosion, and condensation during transportation and processing.
 

➣ The glycol dehydration unit may also include additional components such as filters, pumps, heat exchangers, and control systems to ensure efficient and reliable operation.
 

➣ The primary objective of the glycol dehydration unit is to reduce the water vapor content of the natural gas stream to meet the desired specifications for transportation and downstream processes. Dry natural gas helps prevent hydrate formation, corrosion, and condensation issues, ensuring safe and efficient transportation and processing.

KEY BENEFITS OF A MODULAR SET UP
 

Glycol dehydration modular process skids offer several advantages, including:
 

➣ Compact footprint: The modular design allows for efficient use of space, making it suitable for applications with limited available area, such as offshore platforms or remote locations.
 

➣ Pre-assembled and tested: The skids are typically pre-assembled and tested in a controlled environment, ensuring proper integration and functionality before deployment.
 

➣ Rapid deployment: Modular skids can be quickly transported and installed on-site, reducing project timelines and allowing for faster commissioning.
 

➣ Standardization: Skid manufacturers can offer standardized designs, which can lead to cost savings and streamlined maintenance procedures.
 

Glycol dehydration modular process skids are widely used in various applications, including natural gas processing plants, offshore platforms, onshore production facilities, and pipeline systems, where effective dehydration of natural gas is essential for preventing hydrate formation, corrosion, and condensation issues during transportation and downstream processes.

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