Distillate oil hydrotreatment process
A technology of hydroprocessing and hydrogen, which is applied in the fields of hydroprocessing process, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems of increasing the investment cost of reactors, etc., and achieve the effects of improving hydrogen dissolving capacity, simple process flow and stable operation
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[0040] Example 1
[0041] After the reformed raw materials reach the required temperature through the heating furnace and the hydrogen is fully mixed and dissolved in the gas-liquid mixer, they enter the first hydrogenation reactor. The reaction conditions are: reaction system pressure 1.1MPa, reaction temperature 251°C, converted to hydrogen oil volume The ratio is 110:1, part of the effluent is recycled to the inlet of each reactor, and the cycle ratio is 5:1. Part of the effluent enters the second hydrogenation reactor. The reaction conditions are: reaction system pressure 1.1MPa, reaction temperature 240°C, converted into hydrogen oil volume The ratio is 100:1, a part of the effluent is recycled to the inlet of each reactor, and the cycle ratio is 5:1, and a part enters the first separator for gas-liquid separation, and the separated liquid effluent enters the storage tank 19. The properties of raw oil and product properties are listed in Table 2.
[0042] It can be seen from ...
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[0043] Example 2
[0044] After the mixed diesel raw material reaches the required temperature through the heating furnace and the hydrogen is fully mixed and dissolved in the gas-liquid mixer, it enters the first hydrogenation reactor. The reaction conditions are: the reaction system pressure is 6.2MPa, the reaction temperature is 300°C, and the hydrogen oil volume is converted. The ratio is 260:1, part of the effluent is recycled to the inlet of each reactor, and the cycle ratio is 3:1. Part of the effluent enters the second hydrogenation reactor. The reaction conditions are: reaction system pressure 6.2MPa, reaction temperature 300°C, converted to hydrogen oil volume The ratio is 260:1, part of the effluent is circulated to the inlet of each reactor, the circulation ratio is 3:1, part of the effluent enters the first separator for gas-liquid separation, and the separated liquid effluent enters the storage tank 19. The properties of raw oil and product properties are listed in ...
Example Embodiment
[0046] Example 3
[0047] The intermediate base heavy distillate (blended with coking wax oil) reaches the required temperature through the heating furnace and is fully mixed and dissolved with hydrogen in the gas-liquid mixer, and then enters the first hydrogenation reactor. The reaction conditions are: reaction system pressure 14.0MPa , The reaction temperature is 380℃, the converted hydrogen-to-oil volume ratio is 300:1, a part of the effluent is recycled to the inlet of each reactor, the circulation ratio is 2:1, and a part enters the second hydrogenation reactor; the reaction conditions are: reaction system pressure 14.0MPa , The reaction temperature is 378℃, and the volume ratio of hydrogen to oil is 300:1. A part of the effluent is recycled to the inlet of each reactor with a circulation ratio of 2:1. Part of the effluent enters the first separator for gas-liquid separation, and the separated liquid effluent enters Storage tank 19. The properties of raw oil and product pr...
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