Process for hydrotreating inferior heavy oil with high content of metal, sulfur and nitrogen
A technology for hydrotreating and low-quality heavy oil, applied in the field of hydrogenation, can solve problems such as short operation cycle, and achieve the effects of reducing pressure drop, simple operation, and long device operation cycle
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Embodiment 1
[0051] Embodiment 1 (the described concentration % is mass %)
[0052] use figure 1 The hydrogenation process combination shown includes 5 reactors, including 2 upflow de-iron and decalcification reactors, 1 demetallization reactor, 1 desulfurization reactor and 1 denitrogenation reactor.
[0053] The upflow de-iron and decalcification reactor is filled with a hydrogenation de-iron and decalcification agent, numbered DFC-1#, and the preparation method of the catalyst is as follows:
[0054] In this embodiment, cylindrical Al 2 o 3 As a carrier, the catalyst with active metal components of Mo and Ni was prepared by saturated spray-dipping method.
[0055] Weigh 150g of Al with a water absorption rate of 1.10ml / g 2 o 3 Carrier, spray immersion 50ml containing 8.6g ammonium molybdate (containing MoO 3 82%, Beijing Chemical Reagent Company) and the impregnating solution of 3.10g nickel nitrate (containing NiO 25.2%, Beijing Chemical Reagent Company), dripping 115ml concentr...
Embodiment 2
[0071] use figure 1 The hydrogenation process combination shown includes 5 reactors, including 2 upflow de-iron and decalcification reactors, 1 demetallization reactor, 1 desulfurization reactor and 1 denitrogenation reactor, such as figure 1 shown.
[0072] The upflow fixed-bed de-iron and decalcification reactor is filled with a hydrode-iron and decalcification catalyst, numbered DFC-2#, and the preparation method is as follows:
[0073] Select Al with hollow cam shape 2 o 3 As a carrier, weigh 150g of Al with a water absorption rate of 1.10ml / g 2 o 3 Carrier, spray immersion 50ml containing 8.6g ammonium molybdate (containing MoO 3 82%, Beijing Chemical Reagent Company) and the ammonia solution of 3.10g nickel nitrate (containing NiO 25.2%, Beijing Chemical Reagent Company), in the process of spraying, drip into 115ml concentration at a constant speed and be that 15% ammonia solution is in above-mentioned solution and stir , Spray and soak while dripping, and spray a...
Embodiment 3
[0081] use figure 1 The hydrogenation process combination shown includes 5 reactors, including 2 upflow de-iron and decalcification reactors, 1 demetallization reactor, 1 desulfurization reactor and 1 denitrogenation reactor.
[0082] The upflow fixed-bed iron and decalcification reactor is filled with a hydrodeferrification and decalcification catalyst DFC-1#, and the catalyst is the same as in Example 1.
[0083] The fixed-bed demetallization reactor is filled with a hydrodemetallization agent DM-2#, and the catalyst is the same as in Example 1.
[0084] The desulfurization reactor is filled with a hydrodesulfurization agent, numbered DS-2# respectively. Catalyst is with embodiment 1.
[0085] The fixed-bed denitrogenation reactor is filled with a hydrodenitrogenation catalyst DN-2#, the catalyst is the same as in Example 2.
[0086]The raw material oil C used in the evaluation is a residual oil raw material, and its properties are shown in Table 3. The raw material oil ...
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