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Effect of Sulfuration Conditions on the Coke － Restraining Activity of Water Solubility Ni Catalyst

LIU Dong,ZHANG Shu-yi,CUI Wen-long,DENG Wen-an,et al

Abstract （1034）

PDF （330KB）（568）

The existing state of dispersed Ni catalysts and its precursors for slurry bed hydrocracking of residues were symbolized using microscope，SEM，XRD and LS granularity analyzing apparatus． Then the composition and particle size
distribution of Ni catalysts at different sulfuration time were analyzed，and the coke － restraining activity of the catalyst was also studied．The results show that the structure of nickel sulfide catalyst changed with different sulfuration time，and the coke－restraining activity of the catalyst increased with the prolonged sulfuration time or the increased concentration．While the sulfuration time was longer than 3 h or the concentration of the catalyst was higher than 2000 μg／g ，the coke－restraining activity became steady．

2009, 22 (3): 42-45. DOI: 10.3696/j.issn.1006-396X.2009.03.011

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Reaction Conditions of Slurry-Bed Hydrocracking to Liaohe Residue

ZHANG Shu-yi, LUO hui, DENG Wen-an, LIU Dong, QUE Guo-he

Abstract （295）

PDF （1614KB）（580）

The Liaohe inferior residue was studied as object and the slurry-bed hydrocracking reaction to Liaohe residue was simulated by the autoclave reaction. The effects of oil-soluble dispersed Ni catalyst on residue conversion under different reaction conditions were investigated. The results show that for the oil-soluble dispersed Ni catalyst, the use of the sulfide agent is superior to without sulfide agent; sulfur is the best sulfide agent. The best reaction conditions for hydrocracking Liaohe residue using oil-soluble dispersed Ni catalyst are: oil-soluble catalyst concentration 300 μg/g, the initial hydrogen pressure of 7.0 MPa, reaction temperature is standard temperature (t+5 )℃, reaction time of 1 h.

2008, 21 (3): 57-59.