152236 20260411074456.0 doi 10.1016/j.biombioe.2025.107764 sideral 143417 ART-2025-143417 eng (orcid)0000-0002-5926-5252 Renda, Simona Universidad de Zaragoza Effect of particles size and density on the segregation of catalyst-sorbent mixtures for direct sorption-enhanced DME synthesis: Experimental and mathematical study 2025 Direct sorption-enhanced dimethyl ether synthesis (SEDMES) is a promising process for the production of fuels from CO2 sources. Using novel technologies, the process can be run exploiting the phenomena of particles segregation in a fluidized bed reactor. However, the knowledge on the solid movement and the segregation patterns is a mandatory preliminary step for the setup of the final application. In this study, we evaluated the impact of particles size and density on the segregation patterns, and we used the Gibilaro and Rowe (GR) model to analytically represent the experimental results. It was observed that the variation of both parameters influences segregation, even though a higher separation degree in a wider operating velocity range was observed when a higher density ratio was induced between the two solids. Through the experimental analysis, five possible bed configurations were identified, and a consideration was made on the aims of the GR model to adjust the mathematical representation to the present case. By considering the bottom portion of the bed as a jetsam-rich phase and not – as previously reported – as a segregated layer, a mass balance on the catalyst allowed to obtain a faithful analytical representation of the experimental segregation patterns. info:eu-repo/grantAgreement/ES/DGA/T43-23R info:eu-repo/grantAgreement/ES/MCIN/PLEC2022-009239 info:eu-repo/grantAgreement/ES/MICIU/JDC2023-052947-I info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-9022-2835 Soler, Jaime Universidad de Zaragoza (orcid)0000-0003-1940-9597 Herguido, Javier Universidad de Zaragoza (orcid)0000-0002-2494-102X Menéndez, Miguel Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 197 (2025), 107764 Biomass bioenergy BIOMASS & BIOENERGY 0961-9534 2323028 http://zaguan.unizar.es/record/152236/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2026-03-27 1636453 http://zaguan.unizar.es/record/152236/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2026-03-27 oai:zaguan.unizar.es:152236 articulos driver 2026-04-10-13:53:50 ARTICLE