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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

Active Publication Date: 2019-04-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] (1) Pseudo-boehmite that has not been completely dried has strong viscosity, is difficult to transfer, and easily causes secondary dust pollution;
[0015] (2) Drying starts from the surface. The drying of the wet solid product separated from the mixture obtained from the gelling reaction is incomplete drying, so there is a sandwich biscuit phenomenon, that is, the surface of part of the pseudo-boehmite is dried (that is, the dried surface is substantially free of free water), while the interior is still wet (that is, for the non-dried interior, the content of free water is basically maintained at the level before drying), since the surface is dried, Therefore, hard particles are formed. When peptizing agent and / or binder are added to this incompletely dried pseudo-boehmite and kneaded, the hard particles formed during the drying process are in the process of extrusion. It is easy to cause blockage and affect production efficiency;
[0016] (3) It is difficult to stably control the dry base of pseudo-boehmite. The instability of the dry base will cause great interference to the molding process, making the molding process very unstable, resulting in an increase in the amount of unqualified products and low production efficiency;
[0017] (4) CN103769118A adopts a conventional molding process when molding, yet because the dry basis (35%-50%) of the pseudo-boehmite it adopts is far lower than the conventional dry basis content (about 70%), that is The water content is high, and there is basically no extrusion pressure during the extrusion molding process. Therefore, the carrier obtained after the extrudate is dried and roasted has basically no mechanical strength. As long as a little external force is applied, it will be pulverized and has no possibility of industrial application. sex, which is the biggest problem facing the technology

Method used

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  • Catalyst with hydrogenation catalytic action, preparation method and application thereof and method of removing asphaltene by heavy oil hydrogenation
  • Catalyst with hydrogenation catalytic action, preparation method and application thereof and method of removing asphaltene by heavy oil hydrogenation
  • Catalyst with hydrogenation catalytic action, preparation method and application thereof and method of removing asphaltene by heavy oil hydrogenation

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preparation example Construction

[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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Abstract

The invention relates to the technical field of hydrocarbon oil hydrogenation, in particular to a catalyst with hydrogenation catalytic action, a preparation method and application thereof and a method of removing asphaltene by heavy oil hydrogenation. The catalyst comprises a supporter and a hydrogenation active ingredient supported thereon; the hydrogenation active ingredient includes at least one VB family metal; the supporter is a composition of a compound with hydrated alumina and at least two proton acceptor sites and a compound having alkaline-earth metals; the hydrated alumina composition has phi value of 1.8-5. The hydrated alumina wet gel is used as a start material to prepare the supporter with high strength for the catalyst; the step of drying the hydrated alumina wet gel is omitted, the total process flow is simplified, total operation energy consumption is lowered, dust pollution due to the preparation of the supporter from pseudo-boehmite dry gel powder is avoided, and the operation environment is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of hydrocarbon oil hydrogenation, in particular, the present invention relates to a catalyst with hydrogenation catalysis, a preparation method and application thereof, and a heavy oil hydrodeasphalting method using the catalyst . Background technique [0002] In traditional catalyst preparation methods, alumina shaped bodies, especially γ-alumina shaped bodies, are often used as carriers of supported catalysts because of their good pore structure, suitable specific surface and high thermal stability. use. This alumina is usually obtained from dried hydrated alumina, such as pseudo-boehmite, after being shaped, dried, and then calcined at high temperature. [0003] Based on the above understanding, if figure 1 As shown, the prepared hydrated alumina wet gel needs to be dried to obtain pseudo-boehmite dry rubber powder, and then the pseudo-boehmite dry rubber powder is used as a starting point, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/10B01J23/28B01J23/30C10G45/04
CPCC10G45/04B01J21/10B01J23/28B01J23/30C10G2300/206B01J35/615B01J35/647
Inventor 孙淑玲杨清河胡大为曾双亲邵志才
Owner CHINA PETROLEUM & CHEM CORP
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