Two mathematical models of a Direct Ethanol Fuel Cell (DEFC) considering both an ideal (complete ethanol oxidation) and a realistic behavior (partial oxidation with by-products) were implemented in 3D geometries, adapted ...

Lignocellulosic ethanol, also called second generation ethanol, is a promising alternative for decreasing fossil fuel dependency globally. Nevertheless, its production process still needs further improvements in order to ...

This thesis studied the effect of Co addition to Ni-based catalysts, focused on electronic and structural modification, as well as how these changes interfere on the catalytic properties, like reaction pathway and carbon ...

Cell-associated lipases have been considered biocatalysts economically advantageous because they are produced at low cost, avoiding further recovery or purification steps. Few studies regarding Streptomyces clavuligerus ...

The ethanol accumulated in the broth during fermentation is the main component toxic to yeast, causing slower yeast growth and decreased ethanol production. One way of overcoming this inhibition effect is to use extractive ...

Galactooligosaccharides are indigestible oligosaccharides with recognized prebiotic capacity. They can be synthesized enzymatically from lactose-rich substrates using the β-galactosidase enzyme by means of a kinetically ...

Chemical plants are increasingly complex and integrated with recycle streams promoting energy integration and increasing process yield. This results in a complex dynamic behavior which can interfer in control systems ...

Potassium is one of the basic nutrients for plants and their concentration in the soil is insufficient to produce high quality crops, so it should be an essential component in the composition of fertilizers. Fertilizers ...

The complex cell wall structure of lignocellulosic biomass makes pretreatment one of the most relevant 2G ethanol production process steps due to the difficulty of hydrolyzing lignocellulose to fermentable sugars and the ...