The Laboratory of Chemical Process Engineering congratulates Leandros Paschalidis and Alvaro Ferre on back-to-back successful PhD defenses. Paschalidis presented his thesis titled Theoretical Analysis and Model-Based Optimization of Enzymatic Cascade Reaction Systems, while Ferre presented Dyhdration Processes in the Production of Poly(oxymethylene) Dimethyl Ethers and Their Intergration in a Continuous Mini-Plant.