A5035954984- Thermochemical Biomass Conversion Processes
- Recycling and Waste Management Techniques
- Polymer crystallization and properties
- Lignin and Wood Chemistry
- Extraction and Separation Processes
- Thermal and Kinetic Analysis
- Coal Combustion and Slurry Processing
- Membrane Separation and Gas Transport
- Natural Fiber Reinforced Composites
- Recycling and utilization of industrial and municipal waste in materials production
- Municipal Solid Waste Management
- Flame retardant materials and properties
- Synthesis and properties of polymers
- Environmental Toxicology and Ecotoxicology
- Advanced Battery Materials and Technologies
- Algal biology and biofuel production
- Fire dynamics and safety research
- Polymer Science and PVC
- Petroleum Processing and Analysis
- Graphene research and applications
- Covalent Organic Framework Applications
- Fiber-reinforced polymer composites
- Hygrothermal properties of building materials
- Recycled Aggregate Concrete Performance
- Bauxite Residue and Utilization
Universidad de Valladolid
2023-2024
Universitat Rovira i Virgili
2023
Ente Vasco de la Energía
1995-2011
University of the Basque Country
1991-2000
Swine farming produces large quantities of nutrient-rich wastewater, which often contains metals such as Cu and Zn, used feed additives for pigs. These must be removed from the wastewater before discharge but their retention in biomass can limit subsequent utilization. Photobioreactors are a very promising alternative swine treatment, consortium microalgae bacteria growing symbiotically these reactors allows high nutrient metal removal efficiency at moderate costs. This work studies...
Abstract This paper is part of a project devoted to study the pyrolysis process as an alternative for recycling sheet molding compound (SMC), thermoset composite polyester and fiberglass. A standard SMC was pyrolyzed under nitrogen, at 300, 400, 500, 600, 700°C, 30 min in 3.5‐dm 3 autoclave. focuses on possibilities reusing fibers fillers contained solid residue obtained from pyrolysis. The recycled another composite, bulk (BMC), mechanical properties BMCs prepared with different proportions...
Mixed matrix membranes (MMMs) were formed by using seven polymeric matrices with a wide range of permeabilities. All the have been polyimides, namely: P84, Pi-DAPOH, Pi-DAROH, Matrimid, Pi-HABAc, PI-DAM, and PIM-1 in order increasing O2 permeability. A fixed (10%) concentration microporous organic polymer (TFAP-Trp), combination trifluoroacetophenone triptycene, was added as porous filler. The material properties well their separation performances for multiple pure gases, specifically...
The relationships between gas permeability and free volume fraction, intersegmental distance, glass transition temperature, are investigated. They analyzed for He, CO2, O2, CH4, N2 gases five similar polyimides with a wide range of permeabilities, from very low to extremely high ones. It has been established here that there is an exponential relationship the most probable distance as measured by WAXS; in both cases, coefficient depends on kinetic diameter quadratic polynomial preexponential...
ABSTRACT The effect of operating conditions on the liquefaction behaviour a Spanish lignite was studied using 250 ml stirred autoclave, and following (except otherwise specified): 400 °C, 1 hour, 3.5 MPa initial (cold) H2 pressure, rpm 40 g/10 g tetralin/coal charge. products were fractionated into oils, asphaltenes, preasphaltenes solid residue pentane, toluene THF as extractive solvents influence temperature explored in 300–475 °C range, observing little further improvement yields over...
The suitability of a coal derived solvent anthracene oil, for liquefaction processes was studied. experiments were conducted with Spanish subbiturninous in 250 ml stirred autoclave, using the following operating conditions: 1 hour reaction time, 17 //sup +/sub -// MPa pressure, three temperatures (425, 450 and 475 /spl deg/C) two solvent/coal ratios (2/1 3/1). oil tested both fresh hydrogenated, results compared those obtained tetralin, archetypal hydrogen donor solvent. Different types...
Abstract The elemental composition (C, H, N, S, O) of asphaltenes isolated from coal liquefaction experiments carried out at different temperatures and tetralin/coal ratios has been determined. were conducted in a 250 ml autoclave, with 10 g Spanish subbituminous A coal, for 1 hour, 17 ± MPa operating pressure 400 rpm stirring speed. products fractionated into oils, preasphaltenes using pentane, toluene THF as extractive solvents. % S O are lower than while the C N higher H depends on...
Abstract The effectiveness of different catalysts were compared in coal liquefaction experiments using a 250 ml stirred autoclave, 10 g Spanish Subbituminous A coal, 1 hour reaction time, 17 MPa operating pressure, 400 rpm stirring speed, at 425 and 450 °C with 2/1 3/1 tetralin/coal ratio. products fractionated into oils, asphaltenes, preasphaltenes solid residue pentane, toluene THF as extractive solvents. Three iron-oxide containing catalysts: red mud, an Fe2O3 aerosol Cottrell ash...