Many amine plants used for acid gas removal were designed based on the use of aqueous alkanolamines like monoethanolamine, diethanolamine and less common amines.
The introduction of increasingly stringent environmental regulations, increased pressure on operators to reduce energy consumption as well as plant maintenance cost, the need in some cases to increase plant throughput with existing equipment, were the drivers for the development of formulated acid gas removal solvents.
This paper presents several case histories of operators who upgraded the amine chemistry, comparing plant performance, plant availability, capacity and energy consumption from before to after the upgrade to a formulated solvent. Applications include natural gas, ammonia, and refinery main systems.
Innovation through chemistry has allowed many operators to achieve significantly improved performance without any hardware modifications.
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