The feedstock employed consists of Utah bituminous coal along with two typical biomass resources, corn stover and cereal straw.
The differences and similarities in the yields obtained depend not only on the reactor type but also on the feedstock employed and the residence time in the reactors.
The model is flexible in that it can be modified to calculate the effects on capital and production costs of changes in feedstock cost, changes in the type of feedstock employed, changes in the value of the glycerol coproduct, and changes in process chemistry and technology.
The most common feedstock employed in biodiesel production is edible and inedible oil from oleaginous plants grown in different regions.
Furthermore, two different kinds of alumina feedstocks were employed, namely, a commercial plasma-spray powder and a more economical laboratory manufactured spray-dried powder.
Moreover, while the same feedstocks were employed, the crude glycerol from alkali- and lipase-catalyzed transesterifications contained different purities of glycerol [ 6].
Feedstock powders employed in thermal spraying applications must fulfill certain conditions in terms of particle size, morphology and homogeneity for a continuous and reliable spraying.
The feedstock powders employed in this work were engineered to exhibit similar particle size distributions in order to generate similar values of particle temperature and velocity in the spray jet.
It appears that there is a moderate effect of TiO2 content in support on Ni and V hydrodemetallization (HDM) while hydrodeasphaltenization (HDAs) and hydrodesulfurization (HDS) activities were slightly improved when a partially hydrotreated feed, which contains more refractory compounds than virgin feedstock, was employed.
In addition, the model also indicated increased xylose consumption when xylose-rich feedstock was employed in the multi-feed SSF process (Wang R, Koppram R, Olsson L and Franzén C-J.
