Hydrotreatment method of mixed C4 raw materials
A technology of hydrotreating and mixing C4, which is applied in chemical instruments and methods, hydrogenation hydrocarbon production, chemical/physical processes, etc. It can solve the problems of uneven mixing of crystal particles, difficulty in combining, and deterioration of catalyst strength, etc., and achieve performance Easy to adjust, simple process, high hydrogenation activity and selectivity effect
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[0051] Embodiment uses the preparation of catalyst 1~5:
[0052] Catalyst C1
[0053] Dilute 1L concentration to 50g Al 2 o 3 / L of aluminum sulfate solution and nickel nitrate solution are mixed evenly and loaded into a container at a high position, and the prepared concentration is 150g Al 2 o 3 / / 1 L of sodium metaaluminate solution is put into a container at a high position, and the two containers are connected with a peristaltic pump to control the flow rate and flow into a stainless steel container with 2L of bottom water with a stirrer and gas at the bottom of the tank, the reaction temperature 65°C, control the flow rate to adjust the pH value of the reaction system to 9, adjust the pH value of the slurry to 9.6 by adding ammonia water dropwise, age for 50 minutes after the reaction, filter and separate the mother liquor, and wash. Dry at 90°C for 3 hours and at 120°C for 2 hours to obtain nickel-containing pseudo-boehmite.
[0054] Weigh the prepared nickel-contai...
Embodiment 1
[0077] Put the catalyst C1 into a 45ml fixed-bed adiabatic reactor, and reduce it at 80°C for 8h under a hydrogen atmosphere. Using the hydrogenation raw materials in Table 2, the reaction inlet temperature is 40°C, the reaction pressure is 1.2MPa, and the liquid space velocity is 7.0h -1 1. The hydrogenation results of 100h operation under the condition of 2:1 molar ratio of hydrogen to butadiene are shown in Table 3.
[0078] Table 3 Composition of materials before and after reaction
[0079]
Embodiment 2
[0081] Load catalyst C2 into a 45ml fixed-bed adiabatic reactor, and reduce it at 120°C for 4h under a hydrogen atmosphere. Using the hydrogenation raw materials in Table 2, the reaction inlet temperature is 45°C, the reaction pressure is 1.4MPa, and the liquid space velocity is 8.0h -1 1. The hydrogenation results of 100h operation under the condition of 2.5:1 molar ratio of hydrogen to butadiene are shown in Table 4.
[0082] Material composition before and after table 4 reaction
[0083]
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