Method for producing industrial grade white oil
A production industry, industrial-grade technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problems of low catalyst activity, high metal catalyst, inability to apply activity, etc., achieve high activity, reduce reaction temperature, The effect of strong market adaptability
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example 1
[0021] The preparation of the catalyst carrier: a kind of macroporous aluminum hydroxide dry powder (refers to the pore volume greater than 0.8ml·g -1 Aluminium hydroxide powder) 1000g, 25g acetic acid, 25g citric acid, 25g sesame powder and 800ml deionized water are added, kneaded, extruded, dried at 110°C for 3 hours, and calcined at 550°C for 3 hours to prepare a carrier. The pore volume of the carrier is 0.71ml·g -1 , The specific surface is 316m 2 ·G -1 、Bulk density is 54g·(100ml) -1 , The shape is cylindrical, the particle size is Ф1.6×(4-6)mm.
[0022] Preparation of immersion solution: add 750g of nickel nitrate to 630ml of deionized water at a temperature of 20°C, stir to dissolve, filter and make up water to obtain 1000ml of nickel nitrate aqueous solution, the nickel content in the solution is 18.9g / 100ml calculated as NiO.
[0023] Dry the carrier prepared above at 120°C for 3 hours, take 100 g after cooling, and use 120 ml of the above-mentioned impregnating solution...
example 2
[0025] The rest of this embodiment is the same as that of Example 1, except that the third dipping is performed after the second dipping, the amount of dipping solution is 80 ml, and the dipping, drying, and roasting conditions are the same as the previous two. The prepared catalyst is denoted as C2, and the main physical and chemical properties are shown in Table 1.
example 3
[0027] The rest of this embodiment is the same as Example 2, except that the fourth dipping is performed after the third dipping, the amount of dipping solution is 80 ml, and the dipping, drying, and roasting conditions are the same as the previous three times. The prepared catalyst is denoted as C3, and the main physical and chemical properties are shown in Table 1.
[0028] Table 1 Main physical and chemical properties of white oil hydrorefining catalyst
[0029] Remind
[0030] 2. Hydrogen reduction of catalyst
[0031] Before use, the above catalyst is put into a fixed bed reactor for hydrogen reduction, and the nickel oxide in the catalyst is reduced to metallic nickel. The conditions for the reduction are shown in Table 2.
[0032] Table 2 Process conditions of catalyst hydrogen reduction
[0033] Hydrogen pressure
[0034] 3. The method of producing industrial grade white oil
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