The present study investigates modified Mo/V/W mixed oxides as a possible alternative for state of the art heteropoly acid catalysts (HPA) in partial oxidation methacrolein (MAC) to methacrylic (MAA). Even though HPAs show an excellent activity and MAA selectivity, their long-term stability is unsatisfying, rendering catalyst inoperable after runtimes roughly 6 months. consisting M1 hexagonal (...

The treatment of perchlorate-contaminated groundwater was examined using two side-by-side pilot-scale fixed-bed bioreactors packed with sand or plastic media, and bioaugmented with the perchlorate-degrading bacterium Dechlorosoma sp. KJ. Groundwater containing perchlorate (77microg/L), nitrate (4mg-NO(3)/L), and dissolved oxygen (7.5mg/L) was amended with a carbon source (acetic acid) and nutri...

• Parallel fixed bed reactor system designed for direct air capture by adsorption. Solid basis process optimization is achieved through dynamic modelling. High desorption temperature always desired according to sensitivity analyses. Weather conditions highly affect performance. The extraction of CO 2 directly from the atmosphere (Direct Air Capture) commonly employed using supported-amine sorbe...