A5060182909- Thermochemical Biomass Conversion Processes
- Thermal and Kinetic Analysis
- Coal and Its By-products
- Fire dynamics and safety research
- Coal Combustion and Slurry Processing
- Biodiesel Production and Applications
- Subcritical and Supercritical Water Processes
- Energy and Environment Impacts
- Bioenergy crop production and management
- Forest Biomass Utilization and Management
- Biofuel production and bioconversion
- Flame retardant materials and properties
- Iron and Steelmaking Processes
- Photovoltaic Systems and Sustainability
- Heavy metals in environment
- Catalysts for Methane Reforming
- Lignin and Wood Chemistry
- Free Radicals and Antioxidants
- Heat transfer and supercritical fluids
- Recycling and utilization of industrial and municipal waste in materials production
- Graphite, nuclear technology, radiation studies
- Municipal Solid Waste Management
- Polymer Foaming and Composites
- Global Energy and Sustainability Research
- Combustion and flame dynamics
Technical University of Crete
2014-2023
The present study endeavors to establish a comprehensive kinetic analysis of Municipal Solid Waste residue pyrolysis. As the sample exhibits four distinct degradation stages, it has been carried out by adopting multi-step process behavior. Different approaches have compared, including five isoconversional methods (Kissinger-Akahira-Sunose, Ozawa-Flynn-Wall, Starink, Friedman and Advanced integral Vyazovkin), Mathematical Deconvolution Analysis, Independent Parallel Reaction Model. focuses on...
Solid biofuels from energy crops are widely considered as an attractive alternative for power production in dedicated combustion or cofiring applications. The aim of this work is to present fuel and ash characterization along with thermogravimetric investigations pyrolysis behavior five (cardoon, Miscanthus, Paulownia, willow, poplar) compared Greek lignite. Devolatilization well modeled by three independent parallel reactions reaches higher rates than lignite; char reactivity woody biomass...
Independent parallel reactions (IPR) and distributed activation energy (DAEM) kinetic models were developed compared for the combined pyrolysis-gasification of two agro-industrial waste materials. The aim was to recycle greenhouse gas carbon dioxide mitigating emissions, evaluate thermal behavior, reactivity, conversion product composition in terms structural/chemical characteristics fuels, provide accurate parameters useful scaling-up process. experiments conducted a thermogravimetric...
Thermal analysis technique was used to study the combustion characteristics of lignite, corn cob biomass, and their mixtures. Ignition, reactivity, peak burnout temperatures, time, interactions between blend components were determined. Ashes characterized by chemical, mineralogical, fusibility analyses in order assess environmental impact, as well slagging fouling propensities. Combustion cobs occurred 220°C 500°C, while that lignite 730°C. When blended with at percentages up 30%, mutual...
The effect of catalyst addition on thermal conversion characteristics and kinetics waste biomass chars was investigated. experiments were performed in a thermogravimetric analysis system, at non-isothermal heating conditions, under carbon dioxide atmosphere. Reaction rates determined by power law model. bulk char gasification process occurred between 800 °C 950 °C. Addition alkali salts improved increased the reactivity samples lowering reaction temperature. Peak values reduced 4 to 138...
Aiming to investigate the possibility of exploitation perennial crops for energetic uses, five sustainable energy plants, previously devolatilized, were gasified by carbon dioxide up 950 °C in a thermobalance system, coupled with quadrupole mass spectrometer. The gasification reactivity, thermal decomposition characteristics, and products determined, effect inherent inorganic matter these fuels on process parameters was examined. bulk occurred above 800 °C, main CO lesser amounts H2 H2O....
Present work aimed at investigating the combustion behavior of lignite/woody biomass blends, in terms ignition, reactivity, burnout temperature and time evaluating any synergy effects, by carrying out thermogravimetric analysis tests. Furthermore, it aimed, applying a simple method for removing problematic ash elements, to examine their role on as well mitigation deposition problems boilers co-firing such fuels, through mineralogical fusibility analyzes. Fuels ignition occurred between 205...
The thermal valorisation of an animal sludge was investigated through combustion and co-combustion experiments with agricultural residue, olive kernel, in a fluidized bed unit. performance the fuels their blends terms efficiency emissions tested under different operating conditions. behavior reactivity as well distribution product gases were provided by thermogravimetric–mass spectrometric experiments. effects excess air ratio, fuel loading, blending ratio examined, model applied order to...