Vapor Phase Catalytic Transfer Hydrogenation (CTH) of Levulinic Acid to γ-Valerolactone Over Copper Supported Catalysts Using Formic Acid as Hydrogen Source
Abstract
Vapor phase catalytic transfer hydrogenation (CTH) of aqueous levulinic acid (LA) with formic acid as hydrogen source over different copper catalysts is reported. The Cu–SiO2 showed the highest LA conversion (56%) and selectivity to γ-valerolactone (GVL, 87%) at 250 °C. Analysis indicates that the presence of acid sites are responsible for the cleavage of C–O bonds forming angelicalactone intermediate followed by its hydrogenation to GVL over copper species. Even though the acid sites are necessary a quantitative correlation between acid sites and LA conversion was not observed. Characterization indicated that the higher conversion over Cu–SiO2 can be related to metal support interaction as evident from higher reduction temperature of copper species in H2-TPR compared to other catalysts.
Graphical Abstract
Publisher URL: https://link.springer.com/article/10.1007/s10562-017-2241-z
DOI: 10.1007/s10562-017-2241-z
Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.
Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.