Ir. Kristof De Wispelaere has been rewarded with the Solvay Prize for his Master Thesis ‘Ab initio studie naar de deactivering van zeoliet- en zeotypekatalysoren in het MTO proces’, supervised by Prof. Van Speybroeck and Prof. Waroquier. Within this thesis, structure-activity relations have been investigated for various hydrocarbon pool species relevant for the Methanol to Olefin process.