Heavy oil separation method and treatment system thereof
A separation method and technology of a treatment system, applied in the field of heavy oil separation method and its treatment system, can solve the problems of insignificant separation effect of heavy oil raw materials, etc., achieve the solution of insignificant separation effect, high yield, and improve separation effect Effect
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Embodiment 1
[0062] Use petroleum residue (boiling point> 420°C) as the raw material, using a C3-C4 mixed solvent (wherein, the main solvent, the auxiliary solvent and the supercritical solvent are all the mixed solvents), the composition of the mixed solvent is as follows:
[0063] Component Propane Isobutane N-butane Composition, m%255025
[0064] Such as figure 2 As shown, the three-stage separation method is used to separate petroleum residue. For the specific process, please refer to the above-mentioned three-stage separation method. The process parameters involved in each step of the method are as follows:
[0065] 1) The mass flow rate ratio of main solvent and petroleum residue is 2.4:1;
[0066] 2) The mass flow rate ratio of secondary solvent and petroleum residue is 0.1:1;
[0067] 3) The mixing temperature of petroleum residue and main solvent is 120℃, and the pressure is 4.6MPa;
[0068] 4) Three-stage packing is installed in the upper area of the extraction tower 02, the packi...
Embodiment 2
[0077] Use petroleum residue (boiling point> 420°C) as the raw material, using a C4 mixed solvent (wherein, the main solvent, the secondary solvent and the supercritical solvent are all the mixed solvent), and the composition of the mixed solvent is as follows:
[0078] Component Isobutane N-butane Composition, m%2575
[0079] Such as figure 2 As shown, the three-stage separation method is used to separate petroleum residue. For the specific process, please refer to the above-mentioned three-stage separation method. The process parameters involved in each step of the method are as follows:
[0080] 1) The mass flow rate ratio of main solvent and petroleum residue is 2.8:1;
[0081] 2) The mass flow rate ratio of secondary solvent to petroleum residue is 0.2:1;
[0082] 3) The mixing temperature of petroleum residue and main solvent is 100℃, and the pressure is 4.3MPa;
[0083] 4) The upper area of the extraction tower 02 is filled with 4 sections of packing, the packing is rand...
Embodiment 3
[0093] The bottom product (atmospheric residual oil) obtained by atmospheric distillation of Canadian oil sands pitch (boiling point> 350℃, density at 20℃> 1.0g / cm 3 ) Is the raw material, using a C5 mixed solvent (wherein, the main solvent, the auxiliary solvent and the supercritical solvent are all the mixed solvent), and the composition of the mixed solvent is as follows:
[0094] Component Isopentane N-pentane Composition, m%2575
[0095] Such as figure 2 As shown, the three-stage separation method is used to separate the atmospheric residue. For the specific process, please refer to the above-mentioned three-stage separation method. The process parameters involved in each step of the method are as follows:
[0096] 1) The mass flow rate ratio of main solvent to atmospheric residue is 2.75:1;
[0097] 2) The mass flow rate ratio of secondary solvent to atmospheric residue is 0.25:1;
[0098] 3) The mixing temperature of atmospheric residue and main solvent is 170℃, and the p...
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