A5028069118- Biodiesel Production and Applications
- Catalysis and Hydrodesulfurization Studies
- Thermochemical Biomass Conversion Processes
- Catalysis for Biomass Conversion
- Advanced Combustion Engine Technologies
- Petroleum Processing and Analysis
- Heat transfer and supercritical fluids
- Chemical Thermodynamics and Molecular Structure
- Catalysts for Methane Reforming
- Analytical Chemistry and Chromatography
- Additive Manufacturing and 3D Printing Technologies
- Epoxy Resin Curing Processes
- Catalytic Processes in Materials Science
- Lignin and Wood Chemistry
- Spectroscopy and Chemometric Analyses
- Injection Molding Process and Properties
- Vehicle emissions and performance
- Manufacturing Process and Optimization
- Biofuel production and bioconversion
- Water Quality Monitoring and Analysis
- Phase Equilibria and Thermodynamics
- Composite Material Mechanics
- Engine and Fuel Emissions
- Adsorption, diffusion, and thermodynamic properties of materials
- Rocket and propulsion systems research
University of Chemistry and Technology, Prague
2015-2024
University of Delaware
2019
University of Economics and Management
2019
Institute of Chemical Technology
2008-2014
The hydrotreating of scrap tires pyrolysis oil over commercial Ni-Mo/Al2O3 catalyst was researched for the best processing scheme allowing production high-quality alternative transportation fuels components gasoline, jet, diesel, and marine fuel. Despite initial high content olefins, aromatics, sulfur, nitrogen in oil, fuel obtained by redistillation after at 360 °C 10 MPa met majority standard specifications. Although octane number naphtha fraction lower, this can be used as a component...
To meet the expected requirements of proposed EU Renewable Energy Directive for next decade (RED II), it is necessary to increase availability second-generation biofuels. One promising way doing this involves using ablative fast pyrolysis units transform an agricultural by-product, example straw, into bio-oil. obtain straw bio-oil suitable processing in a typical refinery, we optimized key parameters its hydrotreatment. For upgrading, continuous flow reactor with fixed bed commercial...
Bio-oil upgrading through its hydrodeoxygenation (HDO) using sulfided catalysts has attracted significant attention because of potential to provide advanced biofuels. Although many studies have been undertaken, a detailed understanding the changes in chemical composition on molecular level that would allow better design for bio-oil is still insufficient. Therefore, we subjected straw and products obtained from hydrotreatment over broad range experimental conditions quantitative analysis....
Alternative aviation fuels and their approval process contribute to one of the biggest challenges in deployment an enhanced volume fuels. One approved fuel blending components is hydroprocessed esters fatty acids (HEFAs) for mixing with petroleum-derived (Jet A/A-1) up 50 vol %. As ASTM specification (D7566) merely based on performance expected, final blend concentration HEFA Jet A/A-1 can vary depending resultant properties. Currently, there a lack information how these properties are...
One challenge in the deployment of alternative aviation fuels is lengthy "fuel approval process", which costs millions dollars and can take many years as exact effect these options on engine framework still an unknown. A candidate fuel needs to pass tests deemed necessary by ASTM D4054 Standard Practice. The manufacturer faces risk not receiving certification after significant financial time investment, currently acts a considerable hindrance broadening commercial military aircraft. Approval...
Efficient upgrading of fast pyrolysis bio-oils into products that can be easily integrated existing refinery complexes remains to a challenge particularly from the stability catalyst performance point view. Several NiMo catalysts, mainly alumina-supported, were either prepared or acquired and used in hydrotreating bio-oil ablative straw. The experiments carried out fixed-bed reactor at 340 °C 4 MPa lasted for 80 h. Detailed monitoring key physicochemical properties allowed comparing...
With regard to speed, comfort, and a dense network of destinations, the popularity air transport is on rise. For this reason, jet fuel commodity with rapidly growing consumption interesting refinery margins. At same time, however, it becoming focus attention in terms reducing negative environmental impacts. As response these trends, will be necessary coprocess alternative petroleum fractions sustainable aviation components oil refineries. Six samples different origin were used investigate...
Kerosene from the hydrocracking is commonly used to produce JET fuel. Depending on deactivation of catalyst, aromatic content such kerosene increases a level where it can no longer be for fuel production. The objective this study was determine whether reduced under conditions hydrotreating straight-run middle distillates. obtained real hydrocracker unit investigated in laboratory fixed-bed packed with Ni-Mo/Al2O3 catalyst. Aromatics analyzed utilizing ASTM D6379 (HPLC). As result...