Browsing by Author "Sánchez, M."
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Item The influence of mechanical dispersion of MWCNT in epoxy matrix by calendering method: Batch method versus time controlled(2013-05) Jiménez-Suárez, A.; Campo, M.; Gaztelumendi, I.; Markaide, N.; Sánchez, M.; Ureña, A.; POLIMEROSThe calendering approach has proved to be an effective alternative to chemical dispersion routes, but knowledge on the effectiveness of the different calendering parameters and methods used is still lacking. This study compared two different calendering methods widely used in the literature to evaluate possible differences in their dispersion effectiveness and their effect on the main properties of the nanocomposites being used. The nanocomposites' thermal, electrical, mechanical and thermomechanical properties were evaluated to exhaustively analyze the influence of each calendering method on these properties. Slight differences were observed in the dispersion effectiveness of the two methods analyzed, and behavioral differences were found in the nanocomposites with high and low nanoreinforcement contents.Item RENOVAGAS project: Power to methane(Government Institutes Inc., 2017) Lana, J. A.; Modrego, J.; Chamberlain, J.; Martínez, M. P.; Martín, M.; Cano, R.; Rubio, J.; Navarro, R. M.; Pérez, S.; Sánchez, M.; VALORIZACIÓN DE RESIDUOSRENOVAGAS is a research project funded by the Spanish Ministry of Economy and Competitiveness (MINECO) within the framework of the National Program for Research Aimed at the Challenges of Society. The project goal is to develop a 15 kwel pilot plant for the production of synthetic natural gas (SNG), following a power to methane process, from the electrolytic production of hydrogen with renewable energy sources (RES) and its combination with biogas (as CO2 source) through a methanation process. Therefore, the SNG obtained is fully renewable. The target is to obtain a SNG with the appropriate quality to be directly injected in the Spanish natural gas grid. The main project innovations include the use of CO2 from biogas directly, without previous separation from methane, the development of new methanation catalysts with high activity, selectivity and stability, the design of a specific multichannel reactor, suitable to work with biogas (that feature improves the mass and heat transfer involved in the process) and the development of an advanced process control for its integration with RES. The pilot plant of 15 kwel produces up to 2 N-cu m/hr of SNG. The plant was tested in real conditions, in a waste water treatment plant in Jerez de la Frontera, Spain. Results showed that the quality of the gas produced is adequate for its direct injection in the existing natural gas grid, fulfilling the Spanish natural gas quality specifications. The works done in the project include also detailed engineering for the scale up from the pilot plant to a 250 kwel size (under study for a second phase of the project), forecast of future renewable power and biogas availability and an economical study to show the feasibility of this technology for several plant sizes and assumptions. The results of RENOVAGAS provide knowledge about the technical and economic feasibility of the Power-to-Methane systems. This technology will enhance the contribution to the environment from the utilization of natural gas for domestic and industrial applications.Item RENOVAGAS: Process for the production of renewable natural gas(2016) Rubio, J.; Cortés, P.; Escudero, M. T.; De Godos, I.; Lana, J. A.; Navarro, R.; Pérez, S.; Sánchez, M.; VALORIZACIÓN DE RESIDUOS