Investigation of a system of protecting layer for the process of hydrorefining oily distillates of Uzbekistan’s petroleum

Complex investigation is conducted, directed to development of contacting materials (forcontacts) and catalysts for the protecting layer in the process of hydrorefining petroleum distillates taking into account their specificity and extensively attracting local raw materials. Forcontact FZS-7 is developed which, besides the function of uniform distribution of crude material over the reactor section, diminishes tarring and performs, owing to low nickel content, mild hydrogenation of unsaturated compounds. The proposed kaolin-bset catalyst of the protecting layer with low content of molybdenum oxide works reliably with the residual crude material with high content of iron and displays high enough demetallization activity.