A5002021905- Membrane Separation and Gas Transport
- Catalysis for Biomass Conversion
- Biofuel production and bioconversion
- Zeolite Catalysis and Synthesis
- Process Optimization and Integration
- Carbon Dioxide Capture Technologies
- Microbial Metabolic Engineering and Bioproduction
- Crystallization and Solubility Studies
- Catalysis and Hydrodesulfurization Studies
- Membrane Separation Technologies
- Anaerobic Digestion and Biogas Production
- Numerical methods for differential equations
- biodegradable polymer synthesis and properties
- Advanced Cellulose Research Studies
- Chemical and Physical Properties in Aqueous Solutions
- Advanced Mathematical Modeling in Engineering
- Chemical Synthesis and Reactions
- Chemical Thermodynamics and Molecular Structure
- Field-Flow Fractionation Techniques
- Modeling and Simulation Systems
- Thermal and Kinetic Analysis
- Matrix Theory and Algorithms
- Catalysts for Methane Reforming
- Extraction and Separation Processes
- Membrane-based Ion Separation Techniques
University of Oulu
2011-2024
European Union bioeconomy policy emphasizes that the production of renewable transportation fuels should replace fossil as much possible. In particular, utilization waste or side-stream lignocellulosic materials for fuel is highly recommended. Moreover, future crises forcing a reliance on locally available sources and energy may become increasingly common. Barley straw, common agricultural residue in northern Europe, potential raw material bioalcohol via fermentation. this study,...
Liquid phase oxidation of furfural using hydrogen peroxide offers a promising route for bio-based C4 furanones and diacids; however, only dilute water-based process designs have been previously suggested that limited techno-economic potential. In this study, conceptual design is presented, where aqueous extracted an organic solvent, coupled with product recovery in the presence solvent. To address problem solvent selection, COSMO-RS-based screening framework applied, quantum mechanics-based...
The current work focuses on studying the aqueous phase reforming (APR) of pine and birch hydrolysate obtained from waste wood by using organic acids available biorefineries. Processing representative synthetic mixtures was utilized in order to support data interpretation related influence different chemical compound processing parameters APR actual hydrolysates. It shown, that hydrogenation hydrolysates prior not feasible presence formic acid, which ruled out one potential route. However, it...
The sustainability of transportation biofuel production value chains is under discussion as a consequence the implementation European Union Bioeconomy Strategy and renewable energy production. Greenhouse gas emissions from biomass produced for biofuel, required during process are, in many cases, greater than emission reductions biofuels that are used to replace fossil fuels. In this study, bioethanol short rotation coppice Salix schwerinii was considered cultivation harvesting distribution....
In this study, the modified bounded homotopies presented by Malinen and Tanskanen (Malinen, I.; Tanskanen, J. Modified to enable a narrow bounding zone. Chem. Eng. Sci.2008, 63, 3419) are investigated in order solve phase stability analysis problems liquid–liquid equilibrium cases for phase-splitting calculations. The tangent-plane distance criterion is used analyze stability. emphasis on approaching first root homotopy path. According observations, of path with respect problem variables...
Pervaporation of binary ethanol/water solutions 5–10 wt.% ethanol was studied experimentally through a thin supported high-silica MFI zeolite membrane hydrophobic character in the temperature range 30–70 °C. The fluxes obtained were very high, 2–14 kg m-2h-1 with separation factors 4–7. loss effective driving force significant supporting layers, which limited performance. correlation between experimental data and three different semi-empirical mass-transfer models examined. good especially...
A new homotopy-based strategy is presented that can be used in the robust determination of multiple steady-state solutions for continuous stirred tank reactor (CSTR) systems. The relies on features homotopy parameter and variables bounding, requires only one feasible solution system either known beforehand or solved with an existing solving algorithm. systematically results all solutions, alternatively confirms problem does not have within predefined domain. was successfully demonstrated...
In this study, four ternary liquid–liquid equilibrium systems containing a solvent, furfural, and water were investigated by performing measurements at two different temperatures. The solvents n-pentyl acetate, n-hexyl n-pentanol, n-hexanol. compared to the literature data modeled with UNIQUAC (universal quasi-chemical) activity coefficient model taking into account also vapor–liquid, liquid–liquid, vapor–liquid–liquid behaviors if present. n-Hexyl acetate showed smallest solubility in both...