Programa de Doctorat en Enginyeria de Processos Químics: Recent submissions
Now showing items 61-80 of 138
Contribución al desarrollo de factores de configuración de bolas de fuego con presencia de obstáculos
Fire is the most common phenomenon that characterizes major accidents that take place in both industrial establishments and in the transport of dangerous goods by road and rail. The formation of a fireball, with or without ...
CFD studies of reactive flow with thermal and mass diffusional effects in a supercritical packed bed catalytic reactor
Packed bed reactors are widely used in various chemical processes. Fundamental understanding of the heat and mass transfer phenomena in the packed beds is essential for better modelling of these processes. Theoretical ...
Evaluation of phosphate and ammonium removal and valorization from urban waste waters by impregnated metal hydrated oxides inorganic natural zeolites
Phosphate and ammonium removal from waste water by adsorption using inorganic natural sorbents has been identified as a promising technology. The advantages of this methodology are associated with its availability and ...
Integration of electrically driven membrane separation processes for water treatment and resources recovery
Nowadays, due to the growing fresh water demand, several processes are used to purify seawater by means of desalination or industrial brackish water by different treatment processes. The main limitation of these techniques ...
Methodology for the selection and implementation of environmental aspects and performance indicators in ports
It is broadly known that efficient ports are crucial for the economic development of their surrounding area. However, the loading and unloading of goods in the ports, the related ship traffic, and the hinterland distribution ...
Estudio de la actividad antioxidante de diversas plantas aromáticas y/o comestibles
Plants analyzed in this study, aromatic plants (Rosmarinus officinalis, Thymus vulgaris and Lavandula officinalis) and other plants (Caesalpinia decapetala, Caesalpinia spinosa (Tara) and Morinda citrifolia (Noni)) have ...
Nanofiltration and hybrid sorption : ultrafiltration processes for improving water quality
Reliable access to freshwater is one of the fundamental pillars for our society. Freshwater scarcity has become a major concern in many arid and sem i-arid countries worldwide to s uch an extent that water s upply for ...
Valorization of phosphate from industrial and domestic effluents as by-products for fertilizers production
Phosphorus in wastewater is mainly present as inorganic phosphate forms and is commonly removed through chemical co-precipitation using Al(III) and Fe(III) salts. However, precipitation is expensive and generates a waste ...
Contribution to the study of boiling liquid expanding vapor explosions and their mechanical effects
Boiling Liquid Expanding Vapor Explosions keep occurring from time to time in process plants, storage areas and transportation by road or rail, often with severe effects. There is no doubt that a better knowledge of their ...
Towards multi enterprise-wide coordination for large-scale chemical supply chains
Current Supply chain (Se) decision support tools are devoted to the optimization of one objective function from a bias centralized perspective, without considering the coexistence with other participants and their uncertain ...
Aerogels catalítics de Co-Si sobre monòlits ceràmics per a produir hidrogen mitjançant la reformació d'etanol
Hydrogen is an energy vector; it is not a direct energy source. It is an energy carrier. Hydrogen can be used to feed fuel cells (an electrochemical device), thus increasing the efficency of energy transfer as the amount ...
Improving the tactical and operational decision making procedures in chemical supply chains
Nowadays, market trends have made companies modify the way of doing business. The current context of globalization, economic crisis, political conditions and competence among enterprises involves the continuous challenge ...
Safety life cycle analysis applied to the engineering of pressure relief valves in process plants
Chemical plants and other industrial installations process and store hazardous materials, which represent a certain risk to people, equipment and the environment. Overpressure is one of the most common upsets in process ...
Sewage biogas energy valorization via solid oxide fuel cells
A more sustainable and secure energy supply is required for the forthcoming generations; where the actual dependence on the fossil fuel reserves should be replaced by self-sufficiency and use of renewable energy resources. ...
Aprovechamiento de residuos agro-industriales : preparación de extractos, caracterización y uso en alimentos
Vegetables and fruits are foods that have large number of compounds beneficial to health, as well as being essential in the diet. Its components include the phenolic substances. These compounds have a great antiradical ...
Investigation of the antioxidant properties of five aromatic plants in model food systems
In this PhD it has been analyzed the antioxidant activity of five plants: Camelia sinensis, Gentian lutea, Betula pendula, Convolvulus arvensis and Arctostaphylos uva-ursi. An Electronic Paramagnetic Resonance has been ...
Substitution of conventional pre-treatment units by membrane based processes in drinking water treatment
This thesis focused on the feasibility of substituting, partially or totally, drinking water treatment plant (DWTP) conventional pre-treatment by membrane based units, in particular by ultrafiltration (UF). For such purpose, ...
Introducción del factor humano al análisis de riesgo
The frequency of occurrence of an accident is a key aspect in the risk assessment field. Variables such as the human factor, which is a major cause of undesired events in process industries, are usually not considered ...
Valorización de residuos queratínicos para la obtención de materiales biocompuestos
Materials derired from chicken feathers could be used advantageously in composite building material apptications. Such applications could potentially consume the five billion pounds of feathers produced annually as a ...
Quantitative dispersion analysis of leakages of flammable and/or toxic substances on environments with barriers or semi-confined
With the industrial and technological development of the present-day society, the presence of flammable and toxic substances has increased in a growing number of activities. Dispersion of hazardous gas releases occurring ...
