Reboilers glycol process

Most glycol dehydration processes are continuous. That is, gas and glycol flow continuously through a vessel (the contactor" or absorber ) where they come in contact and the glycol absorbs the water. The glycol flows from the contactor to a reboiler (sometimes called "reconcentrator or regenerator where the water is removed or stripped from the glycol and is then pumped back to the contactor to complete the cycle. 

The selected system comprises three direct-fired hot oil heaters, surge vessels ond circulation pumps. The hot oil is circulated in a closed loop through the tube bundles in the glycol reboilers. The system allows accurate control of the glycol tempercture ond by designing the fired heaters os a redundant utility system cvailoble to the three process troins the reliability of the system is thereby improved. 

For a conventional glycol regeneration system the maximum leon glycol concentration attainable without stripping gas is 98.5%. Table 2 shows that the reduction in reboiler heat lood is relatively small when using the leoner glycol. This is particularly so for systems operating ot lower process gas inlet temperatures to the contactor. 

---