We report on a detailed study of emissions from a pilot-plant for CO ₂ capture at Maasvlakte (in the Netherlands). Three contributions to emissions were identified and analyzed: Gas phase emission, aerosols (also referred to as mist or fog) and droplets of entrained solvents. For the emission campaign at Maasvlakte aerosols were found to be the major contributor to overall emissions. Entrainment was found to be a very small contributor to overall emissions. A Brownian demister unit (BDU) was tested as an emission reducing technology. It was found to be very efficient in reducing aerosol emissions.