INFORM April 2025

30 • inform April 2025, Vol. 36 (4)

the highest force corresponding to the highest stress and energy demand for recovering the oil in both the bulk oilseeds and seedcakes. However, pumpkin seeds produced the maximum residual oil yield of 24.99 ± 0.04%, followed by sesame seeds at 21.29 ± 1.82% and then flax seeds at 22.61 ± 0.31%. The study revealed that higher energy is required to produce the maximum oil yield with minimum residual oil in the seedcake by continuous pressing. Catalytic hydrodeoxygenation of waste cooking oil into green diesel range hydrocarbons: From batch to continuous processing Muñoz-Arjona, A., et al. , Chemical Engineering Journal , 503, 158303, 2025. https://doi.org/10.1016/j.cej.2024.158303 Green diesel produced via hydrodeoxygenation of oil and fat waste has emerged as a cleaner, higher quality product with better cold flow properties than traditional biodiesel. The development of non-sulfided catalysts for this process has attracted the attention of the research community. In this work, we demonstrate the poten tial of Mo 2 C catalysts supported on carbon nanofibers (CNF) in the HDO of used cooking oil. The effect of Mo loading and reaction temperature was analysed following an integrated approach: firstly, the catalyst performance was studied using stearic acid as a model

compound in a batch reactor; then, the catalytic performance was evaluated in a trickled-bed reactor using waste cooking oil as feed stock. We demonstrated that the HDO of used cooking oil with Mo 2 C/CNF based catalysts was possible, obtaining high yields (86 mol %) to hydrocarbons in the range of green diesel. It was also stated that the direct HDO route was favoured over decarboxyl ation/decarbonylation routes. The catalytic performance obtained with different Mo containing catalysts was successfully correlated with the characterization results. The results gathered in this work represent a step forward in the use of Mo carbide catalysts in HDO processes and may pave the way for the deployment of this catalytic technology. Renewable diesel synthesis by hydro processing in green solvents Kordouli, E., et al. , Current Opinion in Green and Sustainable Chemistry , 48, 100936, 2024. https://doi.org/10.1016/j.cogsc.2024.100936 The production of green diesel and jet bio–fuel takes place by hydrodeoxygenation (HDO) through hydrotreatment of natural triglycerides. This demands high pressurized external H 2 related to high cost as well as safety and environmental issues. The utilization of green H 2 released in situ from green solvents or side HDO products is essential for making the process safer, environmentally friendly and economically beneficial. Recent publications dealing with the utilization of this kind of hydrogen

EDIBLE OILS REFINING This hands-on course breaks down the key processing steps—from raw oilseed to purified, high-quality oil—so you can make smarter decisions in plant operations. Basic Principles & Modern Practices

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