Upgrading options heavy grades of oil from the Algerian oil

The global demand for petroleum products is increasing year by year quantitatively and qualitatively, due to population growth and the desire to speed up economic growth of all countries especially in developing; which Algeria belongs to. Besides the clear products supplied by the fractionation of crude oil, there are a number of heavy petroleum products obtained from the secondary treatment, especially in the context of the protection of the environment and which are not the proper use; they are often used as components of fuel oil. These products are among other atmospheric and vacuum residues, heavy distillates from catalytic cracking, aromatic extracts or else the deasphalted vacuum residue, more known as the deasphalted O?l (DAO). Now all the refineries are equipped hydrotreating facility to reduce the content of various pollutants in these products on one hand, and methods thermo catalytic molecular rearrangements aimed transform these residues wholes and fractions heavy in market value of products most important on the other hand. Consequently, the choice of adequate processes is a major challenge for oil refineries.