Chemical engineering

Identification and modeling of hydrodynamic mechanisms impacting the enzymatic hydrolysis of biomass

Biofuels as well as bio-based chemicals production represent a major transition to reduce our dependence on fossil resources. Biomass is an efficient, ecological and economically viable resource to meet both the problem of energy diversification, CO2 emissions reduction in the transportation sector, as well as to diversify chemicals formulation on the market.

PET recycling: Influence of impurities on the crystallization of BHET monomer

Recycling of PET polymer through chemical recycling routes has attracted a great deal of interest in recent years, to cope with plastics streams not handled by classical industrial PET mechanical recycling routes. The development of recycling processes dedicated to colored and opaque PET is a major challenge for reducing waste, developing new resources for the production of recycled PET, and therefore reducing the use of fossil resources to produce PET.

Study of lithium transport mechanisms at interfaces in organic/inorganic hybrid electrolytes

Lithium ion batteries are today the most realistic solution to answer the ever-increasing demand for electrochemical energy storage devices. The two main requirements for such systems are a higher gravimetric capacity and an increased safety, both can be solved using a solid electrolyte instead of the liquid ones in the current technology. At present time three main groups of solid electrolytes exist: polymers, inorganic materials, and hybrid materials (a mixture of an inorganic and an organic phase).

Modeling phase equilibria for polymer recycling processes

Recycling plastic materials is essential for reducing the amount of waste, but currently used mechanical recycling processes have very important limitations (sorting control, color). Chemical recycling will allow a more complete material recovery and this PhD thesis aims at contributing to its development. For the solvent dissolution processes, it is essential to model the polymer blend + solvent mixtures so as to identify the limits of solubility.