Rich/Lean Amine Loading - Amine loading, the amount of acid gases contained within a given amount of amine is critical in the operation, maintenance and performance of an amine plant.
Rich Amine Loading (RAL) is determined by measuring the amount of acid gas contained in the amine stream exiting the Amine Contactor. This is typically represented in a mol ratio ((mol of CO2 + mol H2S)/mol amine). Generally speaking, this measurement is almost impossible to accurately measure in the field or in a lab so plant simulations are often times used to determine the RAL and adjust amine circulation rates and concentrations to meet desired results.