Hoda.S.Ahmed
Egyptian Petroleum Research Institute
Egypt
Title: Effect of variable conditions on the activity of the catalyst
Biography
Biography: Hoda.S.Ahmed
Abstract
A series of gas-oil hydro treating experiments were carried out under different operating conditions. The runs were conducted in a fixed bed-cata test unit. A commercially CoO MoO3 / Al2O3 – hydro treated catalyst was used. The catalyst was used divided to three zones each is separated from another by glass beads/glass wool. The total weight per cent of coke deposited on the catalyst was also studied in each catalyst zone inside the reactor after the runs carried out with each operating variables (reaction temperature, hydrogen pressure, liquid hourly space velocity). The results indicated that the coke deposition on the on the catalyst of the reactor zones can be arranged as follow: First zone > second zone > third zone. Regeneration of coke by two methods (burn off and THF extraction) was studied. The coke removal on using the burn off method was increased with TOS from 3 to 24 h for HVGO, while in case of THF extraction method the coke removal was decreased.