A porous structured reactor for hydrogenation reactions |
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| Affiliation: | 1. Institute of Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland;2. DSM Nutritional Products, Research and Development, Basel, Switzerland;1. Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium;2. University Antwerp, Laboratory of Adsorption and Catalysis, Universiteitsplein 1, 2610 Wilrijk, Belgium;1. Sección de Ingeniería Química, Universidad Autonoma de Madrid, 28049, Madrid, Spain;2. Institute of Ceramics and Glass (ICV-CSIC), 28049, Madrid, Spain;1. School of Chemistry and Chemical Engineering, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi, 832003, China;2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China;3. School of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, China;4. Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance, China Three Gorges University, Yichang, 443000, China;5. Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Yantai, 264006, China;1. Micro Flow Chemistry and Synthetic Methodology, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Het Kranenveld, Bldg 14 – Helix, 5600 MB Eindhoven, the Netherlands;2. KU Leuven, Department of Chemical Engineering, Celestijnenlaan 200F, 3001 Leuven, Belgium;1. Department of Chemical and Environmental Engineering, University of Oviedo, Julián Clavería 8, Oviedo 33006, Spain;2. Department of Industrial Engineering, University of Padova, Via Gradenigo 6/a, Padova 35131, Italy |
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| Abstract: | A novel combination of catalyst carrier and reactor design was developed for intensified production of vitamin intermediates. The so called Design Porous Structured Reactor (DPSR) is a laser sintered porous 3D-structure that can be tailored to the desired reaction properties such as fluid conditions or heat removal and can also act simultaneously as catalyst support.The selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) under solvent-free conditions was chosen as the reaction to evaluate the potential of DPSRs in comparison to conventional batch reactors. DPSR experiments were performed at varying temperatures and liquid flow rates.DPSRs exceeded batch performance in terms of selectivity, yield and turnover frequency in the analyzed process parameter range. However, DPSRs showed some mass transfer effects. Selectivities and yields increased with higher liquid flow rate due to reduced system pressures and sharper residence time distributions.Overall mass transfer coefficients for DPSRs were determined based on an isothermal non-ideal plug flow model applying heterogeneous Langmuir–Hinshelwood kinetics to account for the chemical conversion. The model showed sufficient accuracy to describe the occurring mass transfer processes.DPSRs were found to be viable alternative for batch reactors, demonstrating the potential for process intensification with an inherent potential for further improvement. |
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| Keywords: | Multi-phase reactor Hydrogenation 2-Methyl-3-butyn-2-ol Continuous Reactor Process intensification |
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