LSPC research themes

Process safety

From calorimetric characterisation to process control ...

Process intensification

From microwave volume heating to the G/L contactor ...

Biomass valorisation

From thermal recovery to chemical recovery ...

Process Safety

lIndustrial safety is a major focus for the Normandy region, with a dense and diversified industrial fabric (nuclear energy, gas, chemicals, storage of hazardous materials) and companies classified as SEVESO. Among the main causes of accidents, thermal runaway of reaction masses is one of the most common; the tools and methods for predicting and characterising it are still being researched. Understanding the phenomena involved in this type of accident, which remains fairly difficult given the wide variety of substances and chemical reactions involved, enables us to better characterise the reaction media and assess the margin of confidence in the event of malfunctions.
Preventing runaway requires, on the one hand, a study of the thermokinetics of chemical syntheses in normal and degraded mode, which is essential for calculating the safety parameters of chemical processes: the temperature for which the runaway time is 24 h in adiabatic conditions (TD24) or the temperature rise of the reaction medium in adiabatic mode (ΔTad) or the time available until the maximum reaction speed (TMRad). It is also necessary to study the dynamic behaviour of chemical reactors.

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The approach adopted by the researchers consists of :

- Better understanding of processes
- Identify normal operating mode
- Identify degraded operating mode
- Detect and locate malfunctions.

Latest publications

  • Thermal Stability for the Continuous Production of γ-Valerolactone from the Hydrogenation of N-Butyl Levulinate in a CSTR, Wenel Naudy Vásquez Salcedo , Bruno Renou , Sébastien Leveneur, Processes, 2023, 11 (1), pp.237. ⟨10.3390/pr11010237⟩.
  • Global sensitivity analysis to identify influential model input on thermal risk parameters: To cottonseed oil epoxidation, Elizabeth Antonia Garcia-Hernandez , Moulay Elhassane Elmoukrie , Sébastien Leveneur , Bouchaib Gourich , Lamiae Vernieres-Hassimi, Journal of Loss Prevention in the Process Industries, 2022, 77, pp.104795. ⟨10.1016/j.jlp.2022.104795⟩
  • Quantification of the chemical reactor reliability in the presence of uncertainties/errors in input parameters, Nouha Lyagoubi , Lamiae Vernieres-Hassimi , Leila Khalij , Lionel Estel, Journal of Loss Prevention in the Process Industries, 2022, 76, pp.104751. ⟨10.1016/j.jlp.2022.104751⟩
  • Kinetic study of methyl oleate epoxidation under phase transfer catalysis by heat flow measurement, Michael Jabbour , Imed Ben Talouba , Laurent Balland , Nordine Mouhab, Journal of Thermal Analysis and Calorimetry, 2022, 147 (23), pp.13447-13457. ⟨10.1007/s10973-022-11560-9⟩

Intensification des procédés

The work developed in this area aims to intensify the processes studied by using techniques to reduce the scale or increase efficiency without necessarily moving towards miniaturisation of the installations. The main techniques used are microwaves, plasma and heterogeneous catalysis. The project is structured around 3 themes: microwaves, CO2 capture and recovery, and hydrogen. The theme of hydrogen as an energy carrier concerns the use of hydrogen as a CO2 recovery agent for methanation and methanolation, as well as the study of chemical transport methods.

Latest publications

  • Prediction of Dynamic Viscosity and Sensitivity Study of Potassium Amino-Acid Salt Aqueous Solutions by an Artificial Neural Network According to the Structure. Arnaud Delanney, Alain Ledoux, Lionel Estel. Industrial and engineering chemistry research, 2023, ⟨10.1021/acs.iecr.3c02083⟩.
  • Biocatalyst and continuous microfluidic reactor for an intensified production of n-butyl levulinate: kinetic model assessment. Alexandre Cordier, Marcel Klinksiek, Christoph Held, Julien Legros, Sébastien Leveneur. Chemical Engineering Journal, In press, ⟨10.1016/j.cej.2022.138541
  • Recent technological innovations on continuous microwave assisted biomass pyrolysis and perspectives for industrial scale applications, R. De La Cruz Iturbides, U. Jauregui Haza, I. Polaert, Bioresource_Technology_reports, Volume19, 2022, 101202, <10.1016/j.biteb.2022.101202>
  • Valorisation of CO2 with epoxides: Influence of gas/liquid mass transfer on reaction kinetics, Viviana Contreras Moreno, Alain Ledoux, Lionel Estel, Salim Derrouiche, Marie-Pierre Denieul, Chemical Engineering Science, Volume 170,2017,Pages 77-90,<10.1016/j.ces.2017.01.050>

Valorisation de la biomasse

Biomass has considerable potential as a renewable source of both energy and chemicals, given its abundance and distribution across the planet. The development and use of biomass requires the design and optimisation of efficient and competitive processes. At the LSPC, the theme of biomass valorisation is developed in two parts: chemical valorisation and thermochemical transformation.

Latest publications

  • Investigation of the combination of fractional condensation and water extraction for improving the storage stability of pyrolysis bio-oil, J. Xu, N. Brodu, L. Abdelouahed, B. Taouk,Fuel,Volume 314,2022,
  • Synthesis and characterization of ammonium containing cyclocarbonates and polyurethanes there from, Tapia, L. M. N., Thebault, P., Bischoff, L., Ledoux, A., Defontaine, F., Lesouhaitier, O., Burel, F. (2023). . Reactive and Functional Polymers, 194, 105777.
  • Production of butyl levulinate from the solvolysis of high-gravity fructose over heterogeneous catalyst: In-depth kinetic modeling, Daniele Di Menno Di Bucchianico, Mélanie Mignot, Jean-Christophe Buvat, Valeria Casson Moreno, Sébastien Leveneur, Chemical Engineering Journal, Volume 465, 2023,
postal address
  • 765 Avenue de l'Université
  • 76801 Saint Etienne du Rouvray
Alain Ledoux
+33 232 956 659

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