A new method estimates TEG purity versus reconcentrator temperature at different levels of pressure in gas dehydration systems
by Alireza Bahadori; Gholamreza Zahedi; Sohrab Zendehboudi; Ahmad Jamili
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 7, No. 1, 2014

Abstract: There are several processes and principles for obtaining high triethylene glycol (TEG) purity in gas dehydration process. All methods are based on the principle of reducing the effective partial pressure of water in the vapour space of the glycol reboiler, and hence obtaining a higher glycol concentration at the same temperature. One of the most common methods for enhancement of the glycol concentration has been by means of pressure reduction in the reboiler. In this article a simple method is developed to estimate TEG purity as a function of reconcentrator (reboiler) temperature and pressure. The results are found to be in excellent agreement with reported data in the literature with average absolute deviation being around 0.05%. The tool developed in this study can be of immense practical value for engineers to have a quick check on TEG purity as a function of reconcentrator (reboiler) temperature and pressure at various conditions without opting for any experimental trials. In particular, engineers would find the approach to be user-friendly with transparent calculations involving no complex expressions. [Received: May 21, 2012; Accepted: December 3, 2012]

Online publication date: Sat, 24-May-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Oil, Gas and Coal Technology (IJOGCT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com