64433 20190709135512.0 doi 10.1016/j.cej.2017.01.077 sideral 97692 ART-2017-97692 eng (orcid)0000-0001-5036-1355 Ramírez, A. Universidad de Zaragoza In situ temperature measurements in microwave-heated gassolid catalytic systems. Detection of hot spots and solid-fluid temperature gradients in the ethylene epoxidation reaction 2017 Access copy available to the general public Unrestricted Infrared thermographic techniques have been used for the first time to determine real-time gas and solid temperatures, as well as gas- solid temperature gradients in microwave heated structured reactors. A special reactor vessel has been developed that allows direct observation of the catalyst under microwave heating, and an operating procedure is presented to obtain gas and solid apparent emissivities as a function of temperature. These values are thereafter used to calculate temperatures at any point in the gas and solid phases under reaction. The method has been used to obtain gas and solid temperatures during the ethylene epoxidation reaction carried out on a silver-copper oxide catalyst. The direct heating of the monolith walls produced a stable, large temperature gradient between the solid and the gas phase. info:eu-repo/grantAgreement/EUR/ERC/HECTOR-267626 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.735 2017 ENGINEERING, ENVIRONMENTAL 3 / 50 = 0.06 2017 Q1 T1 ENGINEERING, CHEMICAL 7 / 137 = 0.051 2017 Q1 T1 1.863 2017 Chemical Engineering (miscellaneous) 2017 Q1 Industrial and Manufacturing Engineering 2017 Q1 Environmental Chemistry 2017 Q1 Chemistry (miscellaneous) 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-4546-4111 Hueso, J.L. (orcid)0000-0002-4758-9380 Mallada, R. Universidad de Zaragoza (orcid)0000-0002-8701-9745 Santamaria, J. Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 316 (2017), 50-60 Chem. eng. j. Chemical Engineering Journal 1385-8947 2795224 http://zaguan.unizar.es/record/64433/files/texto_completo.pdf Postprint 70586 http://zaguan.unizar.es/record/64433/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:64433 articulos driver 2019-07-09-11:52:29 ARTICLE