Catalytic reactor engineering ⇒ information-driven design of packed (operando), fluidized, multi-functional, and -phase reactors

Problem statement

At lab-scale, the ultimate goal of a catalytic reactor is to provide (1) reliable kinetic information, neglecting or controlling other phenomena (heat-mass transfer and hydrodynamics); (2) high-throughput data to amplify the results, accelerate model and catalyst discoveries; and (3) results with the minimum requirements of reactants and wastes generated. The pillars of these reactors are quality, quantity, and safety.

We design, build and test different laboratory-scale reactors. Our strategy involves creating and testing reactor prototypes while modeling these using our workflow. We have high-speed cameras, probes, and other measuring instruments to understand the reactor behavior. We focus on packed-, fluidized-bed, and multiphase reactors:

In packed bed reactors, we focus on forced dynamic and operando reactors. These are the quintessence of information-driven reactors where the dynamics can involve flow changes, temperature, pressure, partial pressure, presence of activity modifiers (poissons, H2O…). In operando reactors, we follow a spectro-kinetic-deactivation-hydrodynamic approach to resolve the individual steps involved. In fluidized bed reactors, we focus on downers and multifunctional reactors (circulating, multizone or two-zone, Berty reactors) We focus on trickle-bed, slurry, and bio-electrochemical reactors in multiphase bed reactors.

Al pilot-plant scale, we aim to reach the maximum productivity levels while solving the growing pains: the scale-up. Based on a robust kinetic model obtained in the intrinsic kinetic reactor (lab-scale) and using computational fluid dynamics, we design, build, and operate pilot plants. At this stage, we seek partnerships with investment or industrial enterprises to make these pilot plants.

Goals

  • Multifunctional fluidized bed reactors ⇒ multizone, circulating...
  • Packed bed membrane reactors
  • Forced dynamic reactors ⇒ pulsing, SSITKA...
  • Forced dynamic operando reactors ⇒ DRIFTS, TPSR...
  • Operando reactors
  • Spray fluidized bed reactors
  • Downer reactor I ⇒ micro downer
  • Downer reactor II ⇒ counter-current and scale-up
  • Batch Berty reactor ⇒ short contact time
  • Multiphase reactors ⇒ trickle bed and slurry
  • High throughput experimentation (HTE) reactors
  • Photo-thermal and bioreactors
  • Reactor visualization and prototyping lab
  • Spatio-temporal hydrodynamic characterization and validation

Related People

Related Covers

Related Publications

Designing sulfide catalysts for H2S dissociation to H2 based on reaction descriptors and microkinetics
Appl. Catal. B: Environ. Year: 2025 DOI:https://doi.org/10.1016/j.apcatb.2024.124605
Authors: Almofleh, Alaithan, Velisoju, Mukhambetov, Lezcano, Aljama, Mohamed, Castaño
  • S2H
  • MKM
  • CRE
Sustainable Energy Production from Domestic Wastewater via Bioelectrochemical Reactors Using MXene Efficient Electrodes Decorated with Transition Metal Nanoparticles
J. Environ. Chem. Eng. Year: 2024 DOI:https://doi.org/10.1016/j.jece.2024.113793
Authors: Kolubah, Hedhili, Hassine, Díaz-Rúa, Drautz-Moses, Obaid, Ghaffour, Saikaly, Mohamed, Castaño
  • EPB
  • CRE
Multifunctional fluidized bed reactors for process intensification
Prog. Energy Combust. Sci. Year: 2024 DOI:https://doi.org/10.1016/j.pecs.2024.101176
Authors: Zapater, Kulkarni, Wery, Cui, Herguido, Menendez, Heynderickx, Van Geem, Gascon, Castaño
  • CRE
Coupling catalytic bed fluidization with impeller rotation for improved hydrodynamic characterization of Berty reactors
React. Chem. Eng. Year: 2024 DOI:https://doi.org/10.1039/D4RE00074A
Authors: Cui, Kulkarni, Abu-Naaj, Wagner, Berger-Karin, Weber, Nagy, Castaño
  • FCC
  • C2C
  • CRE
  • MKM
Enlarging the Three-Phase Boundary to Raise CO2/CH4 Conversions on Exsolved Ni–Fe Alloy Perovskite Catalysts by Minimal Rh Doping
ACS Catal. Year: 2024 DOI:https://doi.org/10.1021/acscatal.4c00151
Authors: Yao, Cheng, Bai, Davaasuren, Melinte, Morlanes, Cerrillo, Velisoju, Kolubah, Zheng, Han, Bakr, Gascon, Mohamed, Castaño
  • CRE
  • CHA
Catalytic conversion of crude oil to hydrogen by a one-step process via steam reforming
Int. J. Hydrog. Energy Year: 2024 DOI:https://doi.org/10.1016/j.ijhydene.2024.03.121
Authors: Albuali, Morlanes, Rendón-Patiño, Castaño, Gascon
  • CRE
  • O2H
  • REF
Shaping technical catalyst particles in a bottom-spray fluidized bed
Powder Tech. Year: 2024 DOI:https://doi.org/10.1016/j.powtec.2024.119602
Authors: Alkadhem, Kulkarni, Hoffmann, Zapater, Musteata, Tsotsas, Mohamed, Castaño
  • CRE
  • HCE
Regulating the crude oil–to–chemical process in a multizone fluidized bed reactor using unconventional catalyst formulations
Powder Tech. Year: 2024 DOI:https://doi.org/10.1016/j.powtec.2024.119573
Authors: Cui, Dikhtiarenko, Kulkarni, Shoinkhorova, Al Aslani, Alabdullah, Mazumder, Medina Flores, Alahmadi, Alfilfil, Morales-Osorio, Almajnouni, Gascon, Castaño
  • C2C
  • CRE
  • MKM
Ethylene Oligomerization: Unraveling the Roles of Ni Sites, Acid Sites, and Zeolite Pore Topology through Continuous and Pulsed Reactions
ChemCatChem Year: 2024 DOI:https://doi.org/10.1002/cctc.202301220
Authors: Abed, Mohamed, Hita, Velisoju, Morlanes, El Tall, Castaño
  • CRE
  • OLG
Evaluating performance of vortex-diode based hydrodynamic cavitation device scale and pressure drop using coumarin dosimetry
Chem. Eng. J. Year: 2024 DOI:https://doi.org/10.1016/j.cej.2024.148593
Authors: Sarvothaman, Kulkarni, Subburaj, Hariharan, Velisoju, Castaño, Guida, Prabhudharwadkar, Roberts
  • CRE