Determining appropriate size of inlet scrubber and contractor in TEG gas dehydration systems

Most natural gas producers use triethylene glycol (TEG) to remove water from the natural gas stream in order to meet the pipeline quality standards. In designing such a process, it is crucial that the size of the inlet scrubber as well as the gas/glycol contactor is correctly estimated. The aim of this study is therefore to develop simple-to-use correlations for appropriate sizing of the inlet scrubber and contactor covering a wide range of operating conditions of TEG dehydration systems. Results illustrate that a designer may consider these correlations as appropriate estimation tools during the design of a gas dehydration system utilizing TEG solvent.