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Sensitivity Analysis and Simulation of TEG Dehydration Unit in Central Rumaila Compression Station in Basrah-Iraq

Author: Ali Nasir Khalaf علي ناصر خلف
Journal: Basrah Journal for Engineering Science مجلة البصرة للعلوم الهندسية ISSN: Print: 18146120; Online: 23118385 Year: 2017 Volume: 17 Issue: 1 Pages: 76-83
Publisher: Basrah University جامعة البصرة


In the operating of TEG- dehydration unit in CentralRumaila Compression Station. Two operating parametersdetermine the efficient operating of the unit, the desired dewpoint depression and the losses of TEG. This work presents anattempt to study the effect of all the operating variables on theefficiency of the dehydration unit such as the effect of pressureand temperature of the natural gas has to be treated on thewater content. Contactor pressure, TEG circulating rate andstripping gas flow rate are also considered in this study. Theresults showed that decreasing the temperature of the absorberfrom 130 F to 120 F will reduce the mass fraction of water inthe dry gas stream from 0.000076 to 0.00002. Increasing theabsorber pressure from 549.7 psia (design pressure) to 600 psiawill also reduce the water content in the outlet dry gas from0.000076 to 0.000022 as a mass fraction. The simulation resultshows a linear relationship between the wet gas flow rate from theregeneration column and the lean glycol flow rate.

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