Catalysis Engineering – From Materials to Process Design for the Utilization of Bio-based Feedstock
Marcus Rose, Professor of Chemical Technology
Ernst-Berl-Institut, Technische Universität Darmstadt, Germany, www.rosegroup.de
Time & Place
Wed, 05 Dec 2018 12:00:00 NZDT in Room 701, Level 7
All are welcome
Catalysis is considered a key enabling technology for the transition from fossil towards renewable resources. Especially the conversion of bio-based feedstock and platform chemicals poses major challenges to the processing options regarding catalysis and reaction engineering as well as downstream processing. Due to the high degree of functionalization, especially with heteroatoms such as oxygen, most of the polar compounds require liquid phase processing in polar solvents such as water. Hence, compared to petrochemical processes the catalysts and reaction conditions have to be adapted or even innovative alternative routes are required. In this contribution two different strategies are presented that deal with these challenges:
On the one hand, new reaction systems starting from biogenic platform chemicals are presented to gain access to established (drop-in) or even create new value-added chains. E.g., one focus of our research is the catalytic amination of biogenic alcohols with solid supported metal catalysts to obtain diamine monomers as renewable building blocks. The innovative feature is the applicability in aqueous solutions that offers the opportunity to directly convert aqueous substrate solutions without prior separation. In this context kinetic investigations and continuous processing in lab scale reactor setups are presented for different biogenic alcohols as substrates.
The second strategy focuses on the development, characterization and testing of novel materials. Especially a quite young class of porous materials, porous organic frameworks, are applied in catalytic and separation technologies. Examples discussed include novel tin-organic frameworks that combine the functionality of conventional Sn-substituted zeolites with features of solid single site-catalysts in a polymeric environment. They provide an unexpected and quite useful catalytic behavior that is mechanistically unraveled using isotope exchange experiments. Furthermore, such hydrophobic materials with flexible nanopores enable significant advances towards separation in biorefinery streams by highly selective liquid phase adsorption and novel nanofiltration membranes.