Linde Gas North America, LLC and their project partners will evaluate three flue gas aerosol pretreatment technologies that have the potential to significantly reduce high flue gas aerosol concentrations, which have been shown to contribute to amine losses in solvent based post-combustion carbon dioxide (CO2) capture (PCC) processes. The options that will be evaluated are: (1) a novel high-velocity water spray concept previously tested at a Rheinisch-Westfälische Elektrizitätswerk (RWE) power plant in Niederaussem, Germany; (2) an innovative electrostatic precipitator (ESP) with optimized operating conditions; and (3) a non-regenerative sorbent-based sulfur oxide (SOX) and nitrogen oxide (NOX) removal technology with potential for aerosol particle reduction. The objectives of this project are to design, build, and independently test these technologies at a coal-fired power plant host site using a slipstream of flue gas containing high concentrations of aerosol particles (greater than 107 particles/cm3). The results will be used to benchmark the performance and cost of these technologies against existing options for pretreatment of coal-based flue gas for aerosol mitigation. The impact of this reduction in aerosol concentrations could be leveraged across a variety of solvent-based PCC systems to minimize solvent losses.