What are the needs for Process Intensification?

Abstract

Cet article fait partie du dossier thématique ci-dessous publié dans la revue OGST, Vol. 70, n°2, et téléchargeable ici D o s s i e rOil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 70 (2015), No. 3, Copyright © 2015, IFP Energies nouvelles > Editorial -Towards the Laboratory of the Future for the Factory of the FutureÉditorial -Vers le laboratoire du futur pour construire l'usine du futur Particularly, batch-to-continuous is one of the key issues for intensifying processes. But, the need of process intensification requires the need of collecting many new data of high quality relative to the chemical reaction and to the equipment as well, which represents sometimes a huge effort. This discussion is the opportunity to review the basic data and the metrology associated for the characterization of applications and technologies in order to guide the design of the intensified process. Concerning the chemicals, the stoechio-kinetics parameters, the phase equilibria data (for instance solubility) or the reaction enthalpies can be efficiently determined thanks to microfluidic devices. Concerning the equipment, benchmark studies have to be performed in view of comparing the technologies according to pressure drop, residence time distribution, heat and mass transfer performances, mixing efficiencies and so on. A way of capitalizing the background knowledge lies on simulation tools development, here called data processing tool. This presentation intends also to introduce some of the European network tools developed for diffusing the methodology of intensification, like the industrial club EUROPIC (European Process Intensification Centre) and the demonstration platform MEPI (Maison Européenne des Procédés Innovants).Résumé -Quels besoins pour intensifier un procédé ? -L'intensification des procédés est un concept désormais bien répandu au sein de la communauté du génie des procédés. Le développement de nouvelles voies chimiques et de technologies novatrices peut parfois conduire à des innovations de rupture. Il en a résulté un certain nombre de réussites industrielles. En particulier le passage batchcontinu est une des voies privilégiées pour intensifier un procédé. Mais si l'intérêt de l'intensification n'est plus à démontrer, il n'en demeure pas moins qu'elle nécessite d'acquérir un grand nombre de données relatives aussi bien à la voie chimique qu'au type d'équipement envisagé, ce qui représente un effort considérable. Cet article fait le point sur les données de base à acquérir et la métrologie associée pour concevoir un procédé intensifié. En ce qui concerne l'application chimique, on peut alors avoir recours aux outils microfluidiques pour acquérir de manière fiable et rapide les informations stoechiocinétiques et enthalpiques. En ce qui concerne l'équipement, des méthodes standards permettent de comparer les performances de diverses technologies en matière de perte de charge, distribution de temps de séjour, transferts de matière et de chaleur, mélange, etc. Une manière efficace de capitaliser la c...

Local investigations on the gas-liquid mass transfer around Taylor bubbles flowing in a meandering millimetric square channel

“…Since the last decade, process intensification opens up interesting perspectives for the fine chemical and pharmaceutical industries (Stankiewicz and Moulijn, 2000;Tochon et al, 2010;Commenge and Falk, 2014;Gourdon et al, 2015). A wide range of chemistries has been investigated through the implementation of flow reactors, showing the advantages and the improvements related to such technologies, with regards to quality, safety, competitiveness and eco-impact (Pelleter and Renaud, 2009;Nieves-Remacha et al, 2013;Darvas et al, 2014;Elgue et al, 2015).…”

Gas-liquid mass transfer around Taylor bubbles flowing in a long, in-plane, spiral-shaped milli-reactor

“…microreactors, heatexchanger reactors, monolith reactors, etc. ), are now recognized as relevant alternatives for multiphase batch processing, and thus for process intensification (Gourdon et al, 2015;Jensen, 2001;Stankiewicz et al, 2019). Because of their small scale (diameters varying from a few tens of mm to less than 1 mm), they offer a high surface area to volume ratio and efficient mass and heat transfer x linear dimensionless coefficient, (-) rates, thus providing higher yield and selectivity.…”

Computer‐aided process intensification: Challenges, trends and opportunities

“…Also, this paper is not a review paper and readers interested in a review of PI are directed to the following recent review papers (to list a few): Tian et al gives an exhaustive overview on PI with 890 useful references related to PI; Sitter reviews PI related to PSE, Skiborowski reviews process synthesis and design related to PI, and, Jiang and Agrawal reviews PI related to multicomponent distillation. Hopefully, this perspective paper will provide answers to the following two questions: What is the need for PI, and, has the time for PI finally arrived?…”