Catalyst with hydrogenation catalytic action, preparation method and application thereof and method of removing asphaltene by heavy oil hydrogenation
A catalyst and hydrogenation activity technology, applied in the field of hydrocarbon oil hydrogenation, can solve the problems of difficult transfer, high water content, secondary dust pollution, etc., achieve the effect of simple preparation process, simplified process flow, and reduced operating energy consumption
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[0083] According to the preparation method of the present invention, the carrier is prepared by a method comprising the following steps:
[0084] (1) Mix the components in a raw material composition to obtain a hydrated alumina composition, the raw material composition contains hydrated alumina wet gel, a compound having at least two proton acceptor sites, and at least one A compound containing alkaline earth metal elements, the i value of the alumina hydrate wet gel is not less than 60%, and the amount of the compound having at least two proton acceptor sites is such that the final prepared alumina hydrate composition of with a value of 1.8-5,
[0085] The i value is determined by the following method: 10g of alumina hydrate wet gel is dried in an air atmosphere at 120°C for 240 minutes, and the mass of the dried sample is recorded as w 2 , using formula II to calculate the value of i,
[0086]
[0087] said The value is determined by the following method: 10 g of th...
preparation Embodiment 1-10
[0198] Preparation Examples 1-10 were used to prepare the support.
preparation Embodiment 1
[0200] The hydrated alumina wet gel used in this preparation example is to add nitric acid to the hydrated alumina gel solution prepared by the acid method (sodium metaaluminate-aluminum sulfate method, obtained from Sinopec Changling Branch) Magnesium, and the magnesium-containing pseudo-boehmite wet cake obtained by washing and filtering (the wet cake is coded as SLB-1), the i value of the wet cake was determined to be 77.7%.
[0201] (1) Put 200g of wet filter cake numbered SLB-1 in a beaker, then add 5g of methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd., the same below) and 3g of scallop powder (galactomannan The content is 80% by weight, purchased from Beijing Chemical Reagent Company, the same below), and after using a mechanical stirrer to stir for 10 minutes, the mixture obtained is the magnesium-containing alumina hydrate composition of the present invention, and its property parameters are listed in Table 1 out.
[0202] (2) Put the magnesium-con...
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