Denitrification of shale gas oil was carried out by using a complex agent and the effects of denitrification agent and the ratio of agent to oil on removal efficiency were investigated. The results showed that the mass fraction of basic and total N compounds decreased by 97.1 % and 41.3 % at the agent to oil ratio of 0.15 respectively. The effects of the FCC on the condensation point and product distribution of shale gas oil after denitrification refining were studied. The results show that condensation point of product is lowered dramatically from 25 ℃ to 8 ℃; the yields of gasoline and diesel oil increased by 10.48% and 4.83%, the yields of light oil and total liquid increased by 15% and 6% respectively. Therefore, product quality has been obviously improved.

The properties of fuel oil M100 from Russia were evaluated comprehensively in order to make a reasonable processing scheme for it. The results indicate that M100 resembled a kind of atmospheric oil residua of sulfuric intermediate base crude having a density of 0.936 0 g/cm ³ at 20 ℃, low solidifying point of 20 ℃, high sulfur content of 1.13%, low resin and asphaltene content of 21.4% and 0.4% respectively, high remnant of carbon of 5.35%. Based on the comprehensive evaluation and discussion of M100, three preliminary processing programs were drawn up: the fractions of diesel oil under atmospheric pressure with a low yield of 8.18% need be treated with hydroprocessing; vacuum fractions with a yield of 41.75% could satisfy the feedstocks requirements of fluid catalytic cracking and hydrocracking; and vacuum oil residua had a high yield of 50.07%, need further refining to be used as raw materials of asphalt production.

Lube base oil were produced by catalytic dewaxing from hydrocracking tail oil of the Mao Ming Petrochemical Corporation in fixed catalytic bed reactor using NKC-7 as the dewaxing catalyst. The effects of reaction temperature (340～400 ℃) and space velocity( 1～8 h ^-1) on the product distribution, solidifying point and liquid yield were studied. The results show that good product distribution and higher yield of lube base oil (61.4 % ) can be obtained at 380 ℃ and a space velocity of 2 h ^-1, the solidifying point of lube base oil can reach -24 ℃.