Publications of Grégoire Léonard
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See detailThe key role of CO2 in the energy transition
Léonard, Grégoire ULiege

Conference (2019, November 16)

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See detailThe role of CO2 in the Energy transition
Léonard, Grégoire ULiege

Scientific conference (2019, April 30)

L’AILg, en coopération avec la FABI, organise différents Afterworks sur le thème de la transition énergétique. Au cours d’un After work, il est demandé à un représentant du monde académique de présenter ... [more ▼]

L’AILg, en coopération avec la FABI, organise différents Afterworks sur le thème de la transition énergétique. Au cours d’un After work, il est demandé à un représentant du monde académique de présenter un thème et ensuite à l’industriel (ou à un groupe d’industriels) d’introduire ses réalisations ou ses projets dans ce domaine. [less ▲]

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See detailCO2 research at the University of Liège
Léonard, Grégoire ULiege

Scientific conference (2019, April 26)

In this presentation, the activities related to CO2 at the University of Liège will be presented. After shortly introducing the challenges related to CO2 emissions, a brief overview of main CO2 capture ... [more ▼]

In this presentation, the activities related to CO2 at the University of Liège will be presented. After shortly introducing the challenges related to CO2 emissions, a brief overview of main CO2 capture technologies will be made, evidencing the maturity level of the different capture methods. In particular, our research activities related to post-combustion capture and solvent stability will be described. Then, different CO2 re-use technologies will be discussed, with the focus set on fuel synthesis and its possible role in the future energy mix in Belgium. A system approach will be presented (grid scale), as well as ULiège research related to process design and optimization. Finally, we will introduce the FRITCO2T platform (Federation of Researchers in Innovative Technologies for CO2 Transformation) created in 2016 at ULiège that gathers 3 faculties and 4 labs. Further research fields of the Platform include the production of mono/polymers, construction materials, as well as direct physical use of CO2 as a solvent or for foaming applications. [less ▲]

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See detailPresentation of the FRITCO2T Platform
Léonard, Grégoire ULiege

Conference given outside the academic context (2019)

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See detailSpeed presentation ULiège FRITCO2T
Léonard, Grégoire ULiege; Dupont, Paul

Conference given outside the academic context (2019)

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See detailLa modélisation des procédés au service d'un monde qui change
Léonard, Grégoire ULiege

Conference given outside the academic context (2018)

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See detailEffect of solvent concentration on the energy demand of an absorption-based natural gas sweetening plant
Berchiche, Mohamed El Amine ULiege; Garcia, Monica; Belaadi, Salah et al

Poster (2018, October 23)

Amine-based chemical absorption is the most advanced CO2 capture system. Yet, high energy requirement is a major hinder to its wide deployment. Among the possible routes of improvement is the use of novel ... [more ▼]

Amine-based chemical absorption is the most advanced CO2 capture system. Yet, high energy requirement is a major hinder to its wide deployment. Among the possible routes of improvement is the use of novel amines that can achieve the trade-off between robustness and low regeneration energy. Our work investigates the use of MDEA/DEA as solvent for the capture of CO2 from natural gas. The presence of BTEX (Benzene, Toluene, Ethyl Benzene and Xylene) in the raw natural gas was taken into account. AspenHysys v9 was used to simulate the chemical absorption system. The impact of solvent composition on key process variables, the required flow rate to achieve transport specification, required reboiler duty, pumping energy, BTEX incineration energy and amine losses, were studied. The optimal operating point corresponding to the lowest energy requirement was identified and the separate contribution of each process parameter was estimated. [less ▲]

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See detailLe rôle clé du CO2 dans la transition énergétique
Léonard, Grégoire ULiege

Conference given outside the academic context (2018)

Detailed reference viewed: 119 (17 ULiège)
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See detailCO2 Future at the University of Liège
Léonard, Grégoire ULiege

Conference (2018, January 26)

In this presentation, the activities related to CO2 at the University of Liège will be presented and a focus will be set on the CO2FUTURE platform recently created at ULiège. After shortly introducing the ... [more ▼]

In this presentation, the activities related to CO2 at the University of Liège will be presented and a focus will be set on the CO2FUTURE platform recently created at ULiège. After shortly introducing the challenges related to CO2 emissions, a brief overview of main CO2 capture technologies will be made, evidencing the maturity level of the different capture methods. In particular, our research activities related to post-combustion capture and solvent stability will be described. Then, different CO2 re-use technologies will be discussed, with the focus set on process design and reactor engineering. Indeed, depending on the reaction and catalyst used, the reactor design may be adapted to optimize reaction conditions and reach optimal production and selectivity. This approach will be illustrated by several CO2 reuse products resulting from the power-to-fuel process that converts CO2 into energy carriers such as methanol or DME. The interest for power-to-fuel technologies from an energy storage point of view will be evidenced as well. Results from a student’s integrated project dedicated to CO2 re-use in a Brazilian case study will be presented. Finally, we will present the activities in the field of CO2 at the University of Liège, and introduce the CO2FUTURE platform that gathers 3 faculties and 4 labs in the field of CO2. Further fields of research related to CO2 re-use will be described, and potential collaboration pathways will be evidenced. [less ▲]

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See detailRecent Evolutions and Trends in the Use of Computer Aided Chemical Engineering for Educational Purposes at the University of Liège
Léonard, Grégoire ULiege; Belboom, Sandra ULiege; Toye, Dominique ULiege et al

in Computer Aided Chemical Engineering (2017)

The present paper addresses the evolution and perspectives in the teaching of CAPE methods in the Department of Chemical Engineering at the University of Liège. The transition that happened in the 90ies ... [more ▼]

The present paper addresses the evolution and perspectives in the teaching of CAPE methods in the Department of Chemical Engineering at the University of Liège. The transition that happened in the 90ies with the arrival of commercial software is highlighted, as the learning outcomes evolved from the ability of building programs to solve chemical engineering problems towards the ability to use complex commercial software and to understand their limitations. Moreover, CAPE methods were extended to non-dedicated CAPE courses, which is illustrated here by the goals and challenges of their use in courses like “Reactor Engineering” and “Life Cycle Analysis”. It was observed that students sometimes assume that CAPE softwares provide straightforward and trustworthy solutions without the need of understanding their mathematical bases and assumptions. Thus, solutions to make students aware of these limitations are proposed, including the creation of an integrated project focussing on complex multi-disciplinary issues, evidencing the need for critical input from the operator. [less ▲]

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See detailCO2 activities at the University of Liège
Léonard, Grégoire ULiege

Scientific conference (2017, September)

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See detailChallenges of CO2 capture as an application of fluid separation techniques
Léonard, Grégoire ULiege

Conference (2017, May)

The presentation offers a review of CO2 capture technologies presented as an application of fluid separation. CO2 capture processes (Post-combustion, pre-combustion, oxyfuel combustion and industrial ... [more ▼]

The presentation offers a review of CO2 capture technologies presented as an application of fluid separation. CO2 capture processes (Post-combustion, pre-combustion, oxyfuel combustion and industrial processes) and CO2 capture methods (absorption, adsorption, membranes...) are described, and illustrated by industrial examples of these technologies. Techno-economic challenges faced by these technologies are also mentionned, and perspectives for future developments are discussed. [less ▲]

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See detailEffect of agitation rate on oxydative degradation of monoethanolamine
Benkoussas, Hana ULiege; Léonard, Grégoire ULiege; Kerbachi, Rabah

Poster (2017)

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See detailCCUS ou le rôle clé du CO2 dans la transition énergétique
Léonard, Grégoire ULiege

Conference (2016, November 29)

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See detailStockage intersaisonnier d’énergie
Léonard, Grégoire ULiege

Conference given outside the academic context (2016)

Detailed reference viewed: 17 (2 ULiège)
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See detailIntegrated Project with Focus on Energy Transition and Circular Economy for Developing Engineering Students' Soft Skills
Léonard, Grégoire ULiege; Pfennig, Andreas ULiege; Toye, Dominique ULiege et al

Poster (2016, September 05)

The present work reports the experience of an integrated project developed at the University of Liege for master students in chemical engineering. The goals are to promote the acquisition of soft skills ... [more ▼]

The present work reports the experience of an integrated project developed at the University of Liege for master students in chemical engineering. The goals are to promote the acquisition of soft skills and to consolidate technical knowledge by integrating and linking chemical engineering disciplines usually taught separately. A case study was selected to address some of the challenges related to energy transition: students had to design the energy system of a remote island and make it as energy independent and CO2-neutral as possible by 2030. The course of action during the academic year, the assessment of soft skills, and the tools offered to ease the mentoring and encourage the acquisition of soft skills are described. Not all implemented techniques performed equally well, and this project finally appeared to be a challenge for the teaching team as well. [less ▲]

Detailed reference viewed: 79 (14 ULiège)