Dehydration is an essential step in the processing of natural gas to meet pipeline specifications. Water removal is required to prevent condensation of an aqueous phase which can lead to hydrate formation and corrosion in the gas handling system.

The purpose of this paper is to review commercial natural gas dehydration processes and recent developments which impact the installation and operation of these facilities.

The paper will be divided into three sections 1) review and history of gas dehydration processes, 2) water-hydrocarbon equilibrium behavior and 3) new developments in gas dehydration processes.

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