2022: Rate-based modeling approach for High Pressure Water Scrubbing with unsteady gas flowrate and multicomponent absorption applied to biogas upgrading2022

Abstract Biogas upgrading aims to increase the methane concentration in biogas by removing carbon dioxide. Upgraded biogas can then be used as a renewable energy resource. Among the technologies used for biogas upgrading, High Pressure Water Scrubbing (HPWS) is one of the most widespread. HPWS is identified as fulfilling all the requirements for farm-scale anaerobic […]

2022: Effect of surfactant lengths on gas-liquid oxygen mass transfer from a single rising bubble

Abstract This work is an experimental investigation of the effect of the nature of surfactants on oxygen mass transfer. The study focuses on three cationic surfactants with different hydrophobic chain lengths, and four nonionic surfactants with different hydrophilic chain lengths. Equilibrium adsorption isotherms are calculated for each surfactant from experimental values of surface tension in […]

2021 : Tournament Battle: Gamifying Bibliographic Research and Oral Argumentation Applied to Chemical Engineering Topics

Abstract The purpose of this study is to present a learning activity that gamifies an argumentation exercise by combining both a bibliographic research activity and an oral argument. The exercise is organized as a competitive battle to engage and motivate students after training in bibliographic research. Students are divided into four teams of 4–7 students […]

2021: Gas–Liquid Mass Transfer around a Rising Bubble: Combined Effect of Rheology and Surfactant (open access)

The influence of viscosity and surface tension on oxygen transfer was investigated using planar laser-induced fluorescence with inhibition (PLIF-I). The surface tension and the viscosity were modified using Triton X-100 and polyacrylamide, respectively. Changes in the hydrodynamic parameters of millimetric bubbles were identified, and transfer parameters were calculated. The results revealed a decrease in the […]

2020: New approaches to adapt escape game activities to large audience in chemical engineering: Numeric supports and students’ participation

Gamification is a widespread phenomenon that relies on using game mechanics in other areas, such as the learning situation. One of the most exciting types of games in the late 2010s is escape games, where the principle is for the players to manage to escape from a room in which they are locked by finding hidden […]

2020: Using Augmented Reality to Stimulate Students and Diffuse Escape Game Activities to Larger Audiences

In a world engaged in a perpetual race for progress, augmented reality (AR) is a new frontier that has attracted much research attention in recent years. The generalization of smartphones and the miniaturization and democratization of connected gadgets are leading to new uses and new expectations. In this article, we provide an AR application to […]

2020: Sudden Decrease of the Dissolved Ozone Concentration in Sprays: A Mass Transfer Phenomenon?

Ozone is known to be a powerful oxidant with low persistence and has been shown to possess biocidal activity against a wide number of fungi and bacteria. These properties make ozone a good candidate as a substitute for chemical phytosanitary products in agriculture. However, when water containing dissolved ozone is sprayed, the concentration of ozone […]