Petroleum heavy vacuum gas oil (HVGO) containing 10 wt.% of petroleum wax was hydrocracked at 390–430 °C and under the pressure 18 MPa over a Ni W/amorphous silica-alumina catalyst in continuous-flow fixed-bed reactor. The hydrocracking reference feed (neat HVGO) carried out same reaction conditions. physico-chemical properties primary products obtained via laboratory atmospheric-vacuum distill...

We find that the minimum distance of the binary [137; 69] quadratic residue code is 21.

The distillation unit is one of the main units in refning companies, and it serves as the mother unit in any refnery with any degree of complexity. The optimization of this unit can increase productivity. In this study, the vacuum distillation unit of a refnery was selected as the case study. The shares of different expenses of this unit were clarifed using a novel material flow cost accoun...

Solid wastes from agro-industries may be used as culture medium for enzymes synthesis by filamentous fungi. The brewer’s spent grain (BSG) is generated in abundance in the south of Brazil. Currently, most of this waste is used for animal feed. This work aims to extract and quantify the lipid presents in this residue. The lipids extraction was carried out by Soxhlet extraction method. Initially,...

Green tobacco sickness is an illness associated with nicotine exposures among tobacco harvesters. Agricultural workers manually harvest tobacco and thus have the potential for skin exposure to nicotine, particularly on the hands. Often gloves are not worn as it hinders the harvesters' ability to harvest the tobacco leaves. The purposes of this study were to measure the concentration of nicotine...

Municipal solid waste (MSW) contaminated by radioactive cesium (r-Cs) has been treated by various thermal treatment facilities in Japan. However, the behavior of r-Cs in their plants is scarcely known. Therefore, we investigated 4 types of the thermal treatment plants to understand the r-Cs behavior during different thermal treatments of the MSW. The distribution of r-Cs between residue dischar...