ADCHEM 2009 will be held on Koç University's campus which is located at the meeting point of the Bosphorous with the Black Sea. It is close to the city of Istanbul but at the same time far removed from the city's distractions. It is co-sponsored by the Chemical Process Control, Non-linear Control Systems and SAFEPROCESS Technical Committees of the International Federation of Automatic Control (IFAC). Following the tradition of the previous ADCHEM symposia held in Toulouse(1991), Kyoto (1994), Banff (1997), Pisa (2000), Hong Kong (2003) and Gramado (2006), ADCHEM 2009 will bring together researchers and practitioners to discuss the recent developments in control of chemical, biochemical and closely related process systems. Both theory and applications will be covered.