Entity

Time filter

Source Type


Pan B.-B.,Key Laboratory of Petroleum and Natural Gas Fine Chemical Engineering | Ma F.-Y.,Key Laboratory of Petroleum and Natural Gas Fine Chemical Engineering | Liu X.-J.,Key Laboratory of Petroleum and Natural Gas Fine Chemical Engineering | Chen Q.-Y.,Key Laboratory of Petroleum and Natural Gas Fine Chemical Engineering | And 3 more authors.
Huaxue Gongcheng/Chemical Engineering (China) | Year: 2014

Petroleum vacuum residual sample from one refinery of Karamay as a subject was upgraded in an autoclave (1L) in the presence of inexpensive and disposable catalyst Fe2O3 powder with S as an assistant. The influences of reaction temperature, initial hydrogen pressure and reaction time on the heavy feedstocks were investigated by single factor method. The results show that the heavy stocks have excellent processed properties; the coke yields decrease due to dropping temperature, increasing initial hydrogen pressure and shortening reaction time; decreasing coke yield by increasing initial hydrogen pressure beyond the peak of 5 MPa is wasteful; the coke yields increase when reaction time beyond 75 min which is an induction period of coke. The appropriate condition is θ=445°C, p(H2)=5 MPa and t=55 min, and the corresponding results are 64.40% of η (≤330°C) and 6.03% of coke yields. The results above provide the theoretical parameters for heavy feedstocks upgrading for industrialization. Source

Discover hidden collaborations