For the last 30 years, experimental and modeling studies have been carried out on fluidized bed reactors from laboratory up to industrial scales. The application of developed models for predictive simulations has however been strongly limited by the available computational power and the capability of computational fluid dynamics software to handle ...
Long tubes with small internal diameter find increasing applications in indirect concentrated solar receivers using an Upflow Bubbling Fluidized Bed of Geldart-A powders as heat carrier. Although successfully demonstrated for tubes of 0.5 to 1 m length, longer tubes are required to increase the solar energy capture efficiency and capacity. The flui...
Fusarium sporotrichioides and F. langsethiae are present in barley crops. Their toxic metabolites, mainly T-2 toxin, affect the quality and safety of raw material and final products such as beer. Therefore, it is crucial to reduce Fusarium spp. proliferation and T-2 toxin contamination during the brewing process. The addition of Geotrichum candidum...
Nature is fascinating. It is even more awesome when scru-tinised from a scientific, mechanistic angle across lengthscales, down to the nanoscale, unravelling complex structuresand patterns. Natural systems consist of a dynamic, complexassembly of interacting components and systems, leadingto emergent behaviour, achieving tasks ultimately aiming ats...
Natural fibers and particularly flax fibers have a great potential to replace glass fibers in composite materials. However, the interaction between these fibers and thermoset matrices remains unclear and results in a weak interface affecting the mechanical properties of the composite. This study was carried out to investigate the impact of natural ...
A novel catalytic technique is vital to produce mono- and dioleate (GMO and GDO) from bioglycerol: a renewable resource and by-product of biodiesel. The advantage of this invention is the direct production of GMO and GDO through catalytic approach compared to the conventional method that requires transesterification and distillation processes. In t...
Fractionation of dilute acetic acid aqueous mixtures was operated using a continuous countercurrent packed column with supercritical CO2. A generic procedure was developed to assess the feasibility of such an operation. Experiments were performed using a 2 m high and 17 mm inner diameter column, in the range (10−15 MPa) and (40 °C–60 °C). Thermodyn...
The influence of biomass macromolecular composition on its behaviour in torrefaction was statistically assessed through Principal Component Analysis (PCA), both in terms of solid conversion kinetics and volatile species released, in function of the operating conditions. The experimental data obtained in the torrefaction of 14 woody and agricultural...
Glycerol is a by-product produced from biodiesel, fatty acid, soap and bioethanol industries. Today, the value of glycerol is decreasing in the global market due to glycerol surplus, which primarily resulted from the speedy expansion of biodiesel producers around the world. Numerous studies have proposed ways of managing and treating glycerol, as w...
A microbial electrolysis cell (MEC) 6 L in volume was designed with the objective of maximizing the current density at the cathode. The highly saline electrolyte (NaCl 45 g·L−1) led to a low ohmic resistance, of 0.10 Ω, and made it possible to maintain current density of around 50 A·m−2 for weeks, with peak values up to 90 A·m−2 for hours. This was...
