Jaime Soler Herrero

@article{RENDA2025107764,

title = {Effect of particles size and density on the segregation of catalyst-sorbent mixtures for direct sorption-enhanced DME synthesis: Experimental and mathematical study},

author = {Simona Renda and Jaime Soler and Javier Herguido and Miguel Menéndez},

url = {https://www.sciencedirect.com/science/article/pii/S0961953425001758},

doi = {https://doi.org/10.1016/j.biombioe.2025.107764},

issn = {0961-9534},

year  = {2025},

date = {2025-01-01},

journal = {Biomass and Bioenergy},

volume = {197},

pages = {107764},

abstract = {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.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1021/acs.iecr.3c03956,

title = {Effect of Thermal, Acid, and Alkaline Treatments over SAPO-34 and Its Agglomerated Catalysts: Property Modification and Methanol-to-Olefin Reaction Performance},

author = {Diego Zapater and Javier Lasobras and Naydu Zambrano and Idoia Hita and Pedro Castaño and Jaime Soler and Javier Herguido and Miguel Menéndez},

url = {https://doi.org/10.1021/acs.iecr.3c03956},

doi = {10.1021/acs.iecr.3c03956},

year  = {2024},

date = {2024-01-01},

journal = {Industrial & Engineering Chemistry Research},

volume = {63},

number = {8},

pages = {3586-3599},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{catal14070409,

title = {A Preliminary Assessment of Sorption-Enhanced Methanol Synthesis in a Fluidized Bed Reactor with Selective Addition/Removal of the Sorbent},

author = {Miguel Menéndez and Raúl Ciércoles and Javier Lasobras and Jaime Soler and Javier Herguido},

url = {https://www.mdpi.com/2073-4344/14/7/409},

doi = {10.3390/catal14070409},

issn = {2073-4344},

year  = {2024},

date = {2024-01-01},

journal = {Catalysts},

volume = {14},

number = {7},

abstract = {Methanol synthesis from CO2 can be made in the presence of a sorbent to increase the achievable yield. If the fresh sorbent is continuously fed to a fluidized bed and separated from the catalyst bed by segregation, a steady-state operation can be achieved. The objective of the present work is to provide insight on the suitable operating conditions for such a fluidized bed reactor system. For this, a conventional CuO/ZnO/Al2O3 was selected as the catalyst, and the SiOLITE® zeolite was selected as the sorbent. Different particle sizes were used to be tested in various proportions to perform the fluidized bed segregation study. The fluid dynamics and segregation of the catalyst–sorbent binary mixtures were the most critical points in the development of this proof of concept. A good bed segregation with a mixing index of 0.31 was achieved. This fact favors the correct operation of the system with the continuous addition of adsorbent, which had hardly any catalyst losses during the tests carried out, achieving a loss of 0.005 g/min under optimal conditions. Continuous feeding and removal of sorbent with a low loss of catalyst was observed. Reactor simulations with MATLAB provided promising results, indicating that the addition of sorbent considerably improves the methanol yield under some operating conditions. This makes it more viable for industrial scaling, since it allows us to considerably reduce the pressure used in the methanol synthesis process or to increase the yield per step, reducing the recirculation of unconverted reactants.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}