A5035444416- Renewable energy and sustainable power systems
- Thermochemical Biomass Conversion Processes
- Coal and Coke Industries Research
- Mining and Gasification Technologies
- Waste Management and Environmental Impact
- Iron and Steelmaking Processes
- Mining and Industrial Processes
- Coal Combustion and Slurry Processing
- Thermal and Kinetic Analysis
- Chemical Looping and Thermochemical Processes
- Catalysts for Methane Reforming
- Engine and Fuel Emissions
- Granular flow and fluidized beds
- Coal Properties and Utilization
- Carbon Dioxide Capture Technologies
- Mineral Processing and Grinding
- Sustainable Development and Environmental Management
- Coal and Its By-products
- Subcritical and Supercritical Water Processes
- Industrial Gas Emission Control
- Cyclone Separators and Fluid Dynamics
- Advancements in Materials Engineering
- Geology and Environmental Impact Studies
- Pesticide Residue Analysis and Safety
- Catalytic Processes in Materials Science
Jagiellonian University
2024
AGH University of Krakow
2015-2024
Institute for Chemical Processing of Coal
2012-2022
National Energy Technology Laboratory
2012
Bepress (United States)
2011
The performance of Fe–Mn oxide oxygen carriers supported on sepiolite, ZrO2, and Al2O3 with simulated synthesis gas/air in a novel combustion technology known as chemical looping (CLC) was evaluated. Thermogravimetric analyses (TGAs) bench-scale low-pressure (10 psi) flow reactor tests were conducted to evaluate the performance. Multicycle atmospheric TGA using gas without H2S. effect H2S impurities both stability transport capacity also CLC at 800 °C selected samples well. Chemical-phase...
Biomass gasification, as a thermochemical method, has attracted interest due to the growing popularity of biofuel production using syngas or pure hydrogen. Additionally, this hydrogen when integrated with CO2 capture, may have negative emissions, which makes process competitive electrolysis and coal gasification. This article presents results economic analyses system commercial, fluidized-bed solid fuel gasification reactor (SES technology—Synthesis Energy Systems). With use single unit...
Abstract Removal of zinc and cadmium from highly saline solutions by hydroxide precipitation is discussed. Experimental solubilities in were compared to modeled results obtained using Pitzer’s approach. An amphoteric character an influence chloride ion on the concentration dissolved metals investigated. In order avoid errors linked pH measurements concentrated aqueous solutions, method calibration glass electrodes was developed evaluated. The uses easily prepared buffers whose pHs determined...
Chemical looping combustion (CLC) of simulated coal-derived synthesis gas was conducted with NiO oxygen carriers supported on SiO2, ZrO2, TiO2, and sepiolite. The effect H2S the performance these samples for CLC process also evaluated. Five-cycle thermogravimetric analysis (TGA) tests at 800 °C indicated that all had a stable °C, except NiO/SiO2. Full reduction/oxidation reactions carrier were obtained during five-cycle test. It found support significant reaction both in reduction oxidation...
Comprehensive kinetic studies were performed to establish the validity of many expressions that describe behavior char samples during pressurized gasification toward CO2. The experiments carried out isothermally in a high-pressure thermogravimetric analyzer (TG-HPs, TA Instruments, USA). Two derived from Turów lignite B and Janina sub-bituminous C used for studies. models employed are regarded as most popular: volumetric (VM); modified (MVM); grain (GM); random pore (RPM);...
A kinetic study of the oxy-combustion chars obtained from two Polish steam coals was conducted. comparative focused on data analysis concerning coal collected thermobalances, which differed in construction, design crucibles, sample size and gas flow direction. The influence individual factors such as temperature, O2 concentration, dimensions crucibles char bed reaction rate analysed. On basis these results, a global model elaborated showing all factors, particularly mass transfer conditions,...
A series of experimental coal pyrolysis studies were conducted to define the parameters a kinetic model enable complete mass and energy balances by identifying basic process products. The developed determines chemical enthalpy pyrolytic reactions, making it possible determine share exothermic conversions in coking process. To validate model, tests coals used coke plant their blends conducted, including TGA, retort, industrial oven scale. Despite significant differences composition various...
A kinetic study of oxy-combustion chars received from two Polish coals, namely lignite and hard subbituminous was conducted. The kinetics char examined in the TA Instruments TG-HP150 s pressurized thermogravimetric analyzer at 0.1, 0.5 1 MPa absolute pressure. experiments were carried out isothermal conditions wide range temperature (773–1273 K). Mixture gas containing 20% 30% O2 CO2 used as an oxidant. Additionally 873 K performed using 5%, 10% 40% CO2. model coal presented. Kinetic...