A5046049723- Subcritical and Supercritical Water Processes
- Lignin and Wood Chemistry
- Environmental remediation with nanomaterials
- Catalysts for Methane Reforming
- Thermochemical Biomass Conversion Processes
- Biofuel production and bioconversion
- Microbial metabolism and enzyme function
- Fermentation and Sensory Analysis
- Recycling and Waste Management Techniques
- Coal Combustion and Slurry Processing
- Catalysis for Biomass Conversion
- biodegradable polymer synthesis and properties
- Electrocatalysts for Energy Conversion
- Plant Gene Expression Analysis
- Microplastics and Plastic Pollution
École Polytechnique Fédérale de Lausanne
2017-2023
Paul Scherrer Institute
2021-2023
Abstract Protection groups were introduced during biomass pretreatment to stabilize lignin's α,γ‐diol group its extraction and prevent condensation. Acetaldehyde propionaldehyde stabilized the without any aromatic ring alkylation, which significantly increased final product selectivity. The subsequent hydrogenolysis catalyzed by Pd/C generated lignin monomers at near‐theoretical yields based on Klason (48 % from birch, 20 spruce, 70 high‐syringyl transgenic poplar), with high selectivity a...
Abstract Protection groups were introduced during biomass pretreatment to stabilize lignin's α,γ‐diol group its extraction and prevent condensation. Acetaldehyde propionaldehyde stabilized the without any aromatic ring alkylation, which significantly increased final product selectivity. The subsequent hydrogenolysis catalyzed by Pd/C generated lignin monomers at near‐theoretical yields based on Klason (48 % from birch, 20 spruce, 70 high‐syringyl transgenic poplar), with high selectivity a...
Active phase loss mechanisms from Ru/AC catalysts were studied in continuous supercritical water gasification (SCWG) for the first time by analysing Ru content process with low limit-of-detection time-resolved ICP-MS. was investigated alongside activity of commercial and in-house Ru-based catalysts, showing very rates compared to Ru/metal-oxides (0.2-1.2 vs. 10-24 μg gRu -1 h-1, respectively). Furthermore, AC-supported showed superior long-term SCWG their oxide-based analogues. The impact on...
Ru/CNF catalysts of different Ru nanoparticle (NP) sizes (0.9–2.7 nm) were assessed for their performance in continuous supercritical water gasification (SCWG) glycerol. A structure sensitivity was demonstrated, with high initial turnover frequencies (TOF) NPs smaller than 1.2 nm. Deactivation happens essentially through: 1) coking, which occurs more readily at low surface densities and is limited to nanometric layers, 2) sintering, led final NP ranging from 2 3 nm independent the catalyst...
In this work, we looked at the most recent advances in field of plastics hydrocracking from a technology standpoint. A patent search was supplemented by literature review to evaluate development for recycling. We observed that and academic output rapidly increased over past decade, highlighting emergence tackle plastic waste problem. majority patents arise academia, where recycling is growing research topic. Although innovations have been reported, them disclose use catalysts batch reactors,...
Die selektive Hydrogenolyse …… von isoliertem Lignin gelingt durch den Einsatz bestimmter Schutzgruppen bei der milden säurekatalysierten Lignin-Extraktion und die Wahl eines geeigneten Hydrogenolyse-Katalysators. In ihrer Zuschrift auf S. 1370 berichten J. Luterbacher et al. über Monomerausbeuten nahe dem theoretisch möglichen Wert. Bei Verwendung gewöhnlichem Laubholz werden nur zwei Hauptprodukte gebildet, mit syringylreichem transgenem als Ligninquelle entsteht ein einziges Hauptprodukt.
Ru/CNF catalysts of different Ru nanoparticle (NP) sizes (0.9-2.7 nm) were assessed for their performance in continuous supercritical water gasification (SCWG) glycerol. A structure sensitivity was demonstrated, with high initial turnover frequencies (TOF) NPs smaller than 1.2 nm. Deactivation happens essentially through coking, which occurs more readily at low surface densities and is limited to nanometric layers, sintering, led final NP ranging from 2 3 nm independent the catalyst loading....