What is glycol operations?

What is glycol operations?

Glycol dehydration is a liquid desiccant system for the removal of water from natural gas and natural gas liquids (NGL). It is the most common and economical means of water removal from these streams.

How does a glycol dehydration unit work?

The dehydration process is simple—wet gas contacts dry glycol, and the glycol absorbs water from the gas. Wet gas enters the tower at the bottom. Schlumberger glycol dehydration processes remove water vapor from natural gas, which helps prevent hydrate formation and corrosion and maximizes pipeline efficiency.

What is the difference between Meg and TEG?

Achieving the large dew point depression of 75°C with a circulating TEG system will be challenge and will add to the system cost. The key difference, however, is the circulating TEG system requires a high pressure contactor while the MEG injection system does not.

Does glycol Harden?

It tends to harden the deposits in the system, making them almost impossible to remove. The use of cold or hot water, with or without high detergent soaps, will do little good in cleaning the system. Because most deposits in the glycol system are organic, acid cleaning is not very effective.

What is the function of glycol?

Glycol is a water-miscible coolant that is frequently used in heat transfer and cooling applications. It provides better heat transfer parameters than water, and can be mixed with water to provide a variety of heat transfer characteristics.

What is the difference between lean and rich glycol?

Similarly the “wet” and “rich” glycol means the glycol is rich in water and “dry” and “lean” glycol means the gas is lean in water. The rich glycol then flows through a reflux condenser at the top of the still column, and enters a flash tank where most of the entrained, soluble, and volatile components are vaporized.

What is rich and lean glycol?