Microreactor and DRIFTS experiments were used on model and fully formulated catalyst samples to quantify the impacts of sulfation and desulfation conditions on the amount of sulfur stored and the ease with which it can be removed. The mechanisms for sulfation and desulfation were studied to identify operating conditions that could minimize the impact of sulfur exposure and to design optimal desulfation strategies. This is an abstract of a paper presented at the 2007 AIChE Annual Meeting (Salt Lake City, UT 11/4-9/2007).