What do you call an amine that is loaded with H2S?

The correct terminology for an amine that is loaded with H2S is "rich." In the context of gas treatment processes, when an amine solution is used to absorb hydrogen sulfide (H2S) from a gas stream, it becomes saturated with the acid gases it has absorbed, including H2S. This fully-loaded amine is referred to as "rich" because it contains a higher concentration of these acid gases, indicating its capacity to neutralize these components from the natural gas or other gas mixtures.

Conversely, the term "lean" is used to describe an amine solution that has been stripped of H2S and other absorbed acids, meaning it is less saturated and ready to absorb more acid gases. "Sour" typically describes a gas or crude oil that contains H2S or other sulfur compounds but doesn't specifically refer to the state of the amine solution. "Stripped" is also related to the process where the absorbed gases are removed from the amine solution, further supporting the distinction between these terms and highlighting why "rich" is the most appropriate choice for a saturated amine with H2S.