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Technical paper

Highly Sour Amine Sweetening Process Study for Conditions Common in the Middle East

  • Justin C. Slagle - Bryan Research & Engineering, LLC
  • 2013
  • ADIPEC

Highly sour gas is an increasingly viable gas to treat and process in the Middle East. This paper details the optimization methodology necessary when operating or designing a highly sour gas plant at high pressures and temperatures, more commonly seen in the Middle East. The study explores DGA®, DEA, MDEA and MDEA + piperazine when selecting the amine solvent to use. It also shows the steps taken to determine the correct operating conditions for high pressure, high temperature and highly sour environments. A similar unit's operating data is used to create a base case for comparing various process enhancements. The study shows this particular unit may be able to save roughly 50% - 75% of its steam consumption by switching from 35% DEA to 50% MDEA or 70% DGA®.

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Highly sour gas is an increasingly viable gas to treat and process in the Middle East. This paper details the optimization methodology necessary when operating or designing a highly sour gas plant at high pressures and temperatures, more commonly seen in the Middle East. The study explores DGA®, DEA, MDEA and MDEA + piperazine when selecting the amine solvent to use. It also shows the steps taken to determine the correct operating conditions for high pressure, high temperature and highly sour environments. A similar unit’s operating data is used to create a base case for comparing various process enhancements. The study shows this particular unit may be able to save roughly 50% - 75% of its steam consumption by switching from 35% DEA to 50% MDEA or 70% DGA®.