Preparation method for hydrotreatment catalyst
A technology of hydroprocessing and catalyst, which is applied in the direction of physical/chemical process catalyst, catalyst carrier, chemical instrument and method, etc. It can solve the problems of unfavorable heavy oil hydrodesulfurization and hydroconversion reaction, small specific surface area, etc., and achieve cost Low, simple process, large pore volume effect
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Embodiment 1
[0034] (1) Preparation of alumina dry glue
[0035] Preparation of sodium metaaluminate solution concentration is 140gAl 2 o 3 / L, a total of 2.5L; the concentration of aluminum sulfate solution is 40gAl 2 o 3 / L, a total of 5.0L; in the mixed solution of ethanol and hydroxypropyl methylcellulose (HPMC), the concentration of ethanol is 1.0g / L, and the concentration of HPMC is 1.0g / L, a total of 1.0L.
[0036] Pre-add bottom water to the reaction tank, set the temperature of the reaction tank to 75°C, and start stirring. During the process of adding the prepared sodium metaaluminate solution and aluminum sulfate solution into the reaction tank in parallel at a certain flow rate, a mixed solution of ethanol and hydroxypropylmethylcellulose (HPMC) is added in parallel to adjust the pH value to 6.5. After the materials were added, an alkaline solution was added to the obtained product to adjust the pH value to 8.8, the reaction temperature was 90° C., and the reaction time was...
Embodiment 2
[0041] Other conditions are the same as embodiment 1, just replace ethanol with isopropanol, the isopropanol concentration of preparation is changed into 35g / L, HPMC is replaced with MC, the MC concentration of preparation is changed into 20g / L, prepares A-2 carrier and Catalyst AC-2.
Embodiment 3
[0043] Other conditions are the same as in Example 1, except that the concentration of ethanol is changed to 55g / L, and the concentration of HPMC is changed to 50g / L to prepare A-3 carrier and catalyst AC-3.
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