A5061381324- Thermochemical Biomass Conversion Processes
- Catalysis and Hydrodesulfurization Studies
- Lignin and Wood Chemistry
- Catalysis for Biomass Conversion
- Biofuel production and bioconversion
- Subcritical and Supercritical Water Processes
- Biodiesel Production and Applications
- Catalysts for Methane Reforming
- Petroleum Processing and Analysis
- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Heat transfer and supercritical fluids
- Energy and Environment Impacts
- Phase Equilibria and Thermodynamics
- Zeolite Catalysis and Synthesis
- Industrial Gas Emission Control
- Biochemical and biochemical processes
- Extraction and Separation Processes
- Graphite, nuclear technology, radiation studies
- Particle Dynamics in Fluid Flows
- Process Optimization and Integration
- Granular flow and fluidized beds
- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Fire dynamics and safety research
Biomass Technology Group (Netherlands)
2016-2025
Ghent University Hospital
2019
Brookhaven Technology Group (United States)
2012-2015
Ghent University
2015
University of Twente
1998-2011
University of Groningen
2009
Fast pyrolysis oils from lignocellulosic biomass are promising second-generation biofuels. Unfortunately, the application range for such is limited because of high acidity (pH∼2.5) and presence oxygen in a variety chemical functionalities, upgrading required most applications. Herein, we report an experimental study on fast oil by catalytic hydrotreatment. A heterogeneous noble-metal catalysts were tested this purpose (Ru/C, Ru/TiO2, Ru/Al2O3, Pt/C, Pd/C), results compared to those obtained...
Abstract While the intention of slow pyrolysis is to produce mainly charcoal, fast meant convert biomass a maximum quantity liquids (bio‐oil). Both processes have in common that feedstock densified reduce storage space and transport costs. A comfortable, more stable cleaner intermediate energy carrier obtained, which much uniform well defined. In this review, principles are discussed, main technologies reviewed (demo scale: fluid bed, rotating cone vacuum pyrolysis; pilot plant: ablative...
Abstract BACKGROUND: Biomass is the only renewable feedstock containing carbon, and therefore alternative to fossil‐derived crude oil derivatives. However, main problems concerning application of biomass for biofuels bio‐based chemicals are related transport handling, limited scale conversion process competition with food industry. To overcome such problems, an integral processing route (non‐feed) (residues) transportation fuels proposed. It includes a pretreatment by fast pyrolysis,...
Pyrolysis oil from lignocellulosic biomass can be fractionated into a lignin and sugar fraction. We here provide review on the structure, properties, depolymerisation strategies applications for pyrolytic in framework of biorefinery.
The use of Ru/C (5%-wt.) as a catalyst for the hydrogenation fast pyrolysis oil was explored at 350 °C and 200 bar pressure in batch reactor set-up with main objective to determine effect reaction time on yield elemental compositions product phases. Highest yields (65%-wt.) were obtained after 4 h using 5%-wt. intake oil. Longer times lead reduction due formation gas phase components (methane, ethane, propane, CO/CO2). A solvent–solvent extraction procedure applied gain insights into...
Abstract Fast pyrolysis oil can be upgraded by a catalytic hydrotreatment (250–400°C, 100–200 bar) using heterogeneous catalysts such as Ru/C to hydrocarbon‐like products that serve liquid transportation fuels. Insight into the complex reaction pathways of various component fractions during is desirable reduce formation by‐products char and gaseous components. This paper deals with representative model components for carbohydrate fraction (viz., D ‐glucose ‐cellobiose) present in...
This paper focuses on analytical methods to determine the composition of hydrotreated fast pyrolysis liquids. With this information, it is possible gain insights in chemical transformations taking place during catalytic hydrotreatment (hydrogenation and/or hydrodeoxygenation, HDO) Three different samples, produced at severity levels (defined by temperature and residence time) using Ru/C as catalyst, were analyzed detail. The products was determined solvent fractionation followed detailed...
Catalytic hydrotreatment is an attractive technology to convert fast pyrolysis oil stabilized products for co-processing in conventional crude refinery units. We report here the use of novel bimetallic NiCu- and NiPd-based (Picula) catalysts characterized by a high Ni content (29–58 wt %) prepared using sol–gel method with SiO2, La2O3, kaolin, ZrO2, combinations thereof as support, catalytic oil. The experiments were performed batch autoclave (1 h at 150 °C, 3 350 200 bar initial pressure...
The pyrolysis of lignocellulosic biomass generates a liquid product, known as oil, that can be further processed into biofuels and value-added chemicals. During pyrolysis, cellulose hemicelulose fractions are converted range water-soluble sugar derivatives, for which several valorisation strategies exist. On the other hand, lignin is broken down so-called pyrolytic lignin, water-insoluble complex mixture aromatic oligomers requires different upgrading than rich fraction. Here, we report an...
Depolymerization of lignin by pyrolysis has been identified as a viable route to produce renewable fuels and biobased platform chemicals. Herein we report the LignoBoost in molten salt consisting ZnCl2-KCl-NaCl (60:20:20 mol ratio) g-scale reactor set-up with focus on liquid phase yields composition. The effects relevant process parameters such temperature (250–450 °C), reaction time (10–50 min), N2 flow rate (10–30 mL min−1) product were elucidated using design experiments. highest bio-oil...
Pyrolysis of lignocellulosic biomass and waste plastics has been intensely studied in the last few decades to obtain renewable fuels chemicals. Various pyrolysis devices have developed for use a laboratory setting, operated either batch or continuously at scales ranging from milligrams per hour tenths g hour. We report here design operation novel staged free-fall (catalytic) unit demonstrate that concept works very well pinewood sawdust, paper sludge, polypropylene as representative feeds....
Abstract Flash pyrolysis oil or Bio-oil (BO), obtained by flash of lignocellulosic biomass, is very acidic in nature. The major component responsible for this acidity acetic acid, present levels up to 2–10 wt%. Here, we report an exploratory study on BO upgrading reactive extraction acid using long-chain tertiary amines a batch set-up. Factors affecting the efficiency, such as type and concentration amine co-solvents, were investigated. More than 90 wt% could be extracted single equilibrium...