Elemental sulfur deposition is becoming of a major concern in sour gas handling
facilities due to corrosion occurring and blockage problems. Under certain conditions, the
processing of sour gas can result in precipitation of elemental sulfur. The source of the
precipitated elemental sulfur varies depending on the gas reservoir, processing parameters,
and the specific treatment technology used in the system. This paper presents the work
conducted to assess the impact of elemental sulfur in the proper selection of a gas dehydration
system. Corrosion study on liquid dehydration systems was conducted in the presence of
water and elemental sulfur. In addition to laboratory work, field experiments were performed to
simulate real operating conditions in terms of sulfur deposition using two different dehydration
systems. The results showed that the corrosivity of the selected liquid dehydration system
indicated a general corrosion rate of carbon steel, calculated by weight loss, averages less
than 3-mpy (mils per year).