​​

Upgrading renewables, secondary, and waste streams through innovative hydroprocessing catalysts and reaction pathways


    Problem Statement

    Hydroprocessing is a well-implemented and versatile refinery conversion strategy, comprising a wide array of reaction routes such as: (i) hydrotreating, aiming for the hydrogenation of unsaturated hydrocarbons and the removal (hydrogenolysis) of heteroatoms such as sulfur or nitrogen; (ii) hydrocracking, for promoting C–C bond scission and the partial saturation of aromatics; or (iii) hydrodeoxygenation, for the specific removal of oxygen moieties. In this project, we investigate the conversion of highly polyaromatic feedstock like heavy fuel oil (HFO), pyrolysis fuel oil (PFO), or bio-oils from different biomass sources (i.e., agricultural waste, algae) for quality improvement and obtaining products with higher added value.

    We seek new (thermo-) catalytic strategies and improved heterogeneous catalysts with increased activity and stability. We put advanced analytical characterization techniques (i.e., nuclear magnetic resonance, high-res mass spectrometry) to work and combine their results with modeling and statistical tools.

    HPC

    Goals

    • Develop a quantitative analytical workflow to analyze and interpret these complex reacting environments
    • Explore novel renewable and waste resources to obtain chemicals and fuels
    • Deploy ad-hoc catalysts and process conditions to incorporate these wastes in the refinery (bio- and waste-refinery)
    • Analyze process dynamics and kinetics

    Related People

    Related Publications

    Continuous Lumped Hydrocracking Kinetics of Plastic (Polyethylene) Pyrolysis Oil Blended with Gas Oil
    Ind. Eng. Chem. Res. Year: 2025 DOI:https://doi.org/10.1021/acs.iecr.5c01838
    Authors: Lezcano, Trueba, Rodriguez, Palos, Gutierrez, Castaño
    • HPC
    • W2C
    • MKM
    Integrated analytical workflow for quantifying and modeling the hydrocracking of vacuum gas oil and plastic pyrolysis oil
    Fuel Year: 2025 DOI:https://doi.org/10.1016/j.fuel.2025.135557
    Authors: Zambrano, Rodriguez, Lezcano, Trueba, Hita, Palos, Gutierrez, Castaño
    • ANW
    • HPC
    • W2C
    Molecular-Level Analytical Platform for Quasi-quantitative Characterization of Bio-oils from a Commercial Biorefinery
    Energy & Fuels Year: 2025 DOI:https://doi.org/10.1021/acs.energyfuels.4c05619
    Authors: Zambrano, Lezcano, Hita, Gerritsen, Venderbosch, Castaño
    • ANW
    • W2C
    • HPC
    Mechanistic Insight into Heteroatom Removal from Vacuum Gas Oil Blended with PMMA or PET Waste
    ChemSusChem Year: 2024 DOI:https://doi.org/10.1002/cssc.202400581
    Authors: Zambrano, Trueba, Hita, Palos, Azkoiti, Gutierrez, Castaño
    • ANW
    • HPC
    Hydrodeoxygenation of mixtures of biomass-derived model compound oxygenates over Pt/HY catalysts
    Chem. Eng. Sci. Year: 2024 DOI:https://doi.org/10.1016/j.ces.2024.119800
    Authors: Prabhudesai, Yerrayya, Gurrala, Castaño, Vinu
    • HPC
    • MKM
    Selective ring-opening of polycyclic to monocyclic aromatics: A data- and technology-oriented critical review
    Prog. Energy Combust. Sci. Year: 2023 DOI:https://doi.org/10.1016/j.pecs.2023.101110
    Authors: Lezcano, Hita, Yerrayya, Bendjeriou-Sedjarari, Jawad, Lozano-Ballesteros, Sun, Al-Mana, AlAmer, Albaher, Castaño
    • HPC
    • W2C
    Hydrocracking mechanisms of oxygenated plastics and vacuum gasoil blends
    Fuel Process. Technol. Year: 2023 DOI:https://doi.org/10.1016/j.fuproc.2023.107822
    Authors: Trueba, Zambrano, Hita, Palos, Azkoiti, Gutierrez, Castaño
    • HPC
    • W2C
    • ANW
    Oxidative desulfurization of model compounds and crude oil using Mo/Ti-DMSN catalyst and a detailed molecular characterization of sulfur species
    Catal. Today Year: 2022 DOI:https://doi.org/10.1016/j.cattod.2022.05.009
    Authors: Fan, Chen, Saxena, Li, Castaño, Zhang, Roberts
    • HPC
    • W2C
    • ANW
    Fuel production via catalytic cracking of pre-hydrotreated heavy-fuel oil generated by marine-transport operations
    Fuel Year: 2022 DOI:https://doi.org/10.1016/j.fuel.2022.124765
    Authors: Izaddoust, Hita, Zambrano, Trueba, Palos, Zhang, Epelde, Arandes, Castaño
    • FCC
    • HPC
    • ANW
    Unraveling the reaction mechanism of selective C9 monomeric phenols formation from lignin using Pd-Al2O3-activated biochar catalyst
    Bioresour. Technol. Year: 2022 DOI:https://doi.org/10.1016/j.biortech.2021.126204
    Authors: Gurrala, Kumar, Yerrayya, Kandasamy, Castaño, Raja, Pilloni, Paek, Vinu
    • HCE
    • HPC