A5011116630- Thermochemical Biomass Conversion Processes
- Coal and Its By-products
- Recycling and Waste Management Techniques
- Combustion and flame dynamics
- Iron and Steelmaking Processes
- Coal Combustion and Slurry Processing
- Thermal and Kinetic Analysis
- Forest Biomass Utilization and Management
- Lignin and Wood Chemistry
- Hybrid Renewable Energy Systems
- Municipal Solid Waste Management
- Polymer crystallization and properties
- Biofuel production and bioconversion
- Advanced Combustion Engine Technologies
- Coal Properties and Utilization
- Combustion and Detonation Processes
- Catalysts for Methane Reforming
- Microplastics and Plastic Pollution
- Biodiesel Production and Applications
- Heavy metals in environment
- Recycling and utilization of industrial and municipal waste in materials production
- Subcritical and Supercritical Water Processes
- Electric Vehicles and Infrastructure
- Extraction and Separation Processes
- Environmental Impact and Sustainability
Instituto Superior de Educação e Ciências
2024
University of Lisbon
2022
National Laboratory of Energy and Geology
2006-2014
National Institute of Engineering, Technology and Innovation
1999-2009
Rede de Química e Tecnologia
2007
University of Alicante
2004
Combustion Institute
1986
Cogasification of sewage sludge mixed with coal showed that the amount supplied to gasifier, depending on its availability, could vary without affecting gasifier performance; however, it had an influence syngas composition. The use during gasification gave rise increasing gas yield and energy conversion, mainly because produced a greater hydrocarbon content. H2S, HCl, especially NH3 were also found increase, due higher contents nitrogen in compared coal. both temperature air flow rate...
Hydrogen is a versatile vector for heat and power, mobility, stationary applications. Steam methane reforming coal gasification have been, until now, the main technologies H2 production, in shorter term may remain due to current costs of green H2. To minimize carbon footprint these technologies, capture CO2 emitted priority. The situ during processes, or even syngas upgrade by water–gas shift (WGS) reaction, especially profitable since it contributes an additional production This includes...
The principal aim of this study was the identification possible routes for reaction mechanism a plastic waste mixture pyrolysis. Kinetic studies equal percentages polyethylene (PE), polypropylene (PP), and polystyrene (PS) were performed in order to analyze if direct conversion wastes into gaseous, liquid, solid products favored, or parallel reactions and/or reversible elementary steps should be considered. experiments carried out six microautoclave system. On basis experimental results...
The main aim of this study was the identification possible routes for reaction mechanism pyrolysis polyethylene. In paper, a kinetic polyethylene is presented. reactions were carried out in six autoclave system using different temperatures and times. It analyzed if direct conversion plastic wastes into gaseous, liquid, solid products favored or parallel and/or reversible elementary steps should be considered. A theoretical model has been ajusted to experimental data. parameters estimated.
This work was undertaken with the aim of quantifing relative amounts NH3 and HCN released from different residues, which included sewage sludge, refuse derived fuel (RDF), sawdust, during their devolatilization under fluidized bed conditions. The results were compared data collected for bituminous coals origin (USA, South Africa, Colombia, UK). relation between levels NOX N2O formed cocombustion also addressed. partitioning nitrogen volatiles char quantified. pyrolysis studies in a small...
The European Union has committed to achieving carbon neutrality by 2050 and green hydrogen been chosen as a priority vector for reaching that goal. Accordingly, Portugal drafted National Hydrogen Strategy laying out the various steps development of economy. One element this strategy is gigawatt-scale production facility powered dedicated renewable electricity sources. This work presents an analysis technical economic feasibility consisting polymer electrolyte membrane electrolyser solar...
This is the study of environmental implications sewage sludge cogasification mixed with biomass wastes (straw pellets). NH 3, H 2S, and HCl contents syngas were compared to those produced during coal. In presence straw pellets, lower concentrations 3 higher obtained, probably due its low high N Cl, respectively. However, in very similar for both blends pellets or coal, because most these compounds retained condensation system gasification installation. Lower 2S levels also measured when...