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Catalyst with hydrogenation catalysis, preparation method and application thereof, and heavy oil hydrogenation deasphaltene method

A catalyst and hydrogenation activity technology, applied in the field of hydrocarbon oil hydrogenation, can solve problems such as transfer difficulty, secondary dust pollution, molding interference, etc., and achieve the effects of simple preparation process, improved working environment, and avoidance of dust pollution.

Active Publication Date: 2021-12-17
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 catalysis, preparation method and application thereof, and heavy oil hydrogenation deasphaltene method
  • Catalyst with hydrogenation catalysis, preparation method and application thereof, and heavy oil hydrogenation deasphaltene method
  • Catalyst with hydrogenation catalysis, preparation method and application thereof, and heavy oil hydrogenation deasphaltene method

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preparation example Construction

[0085] According to the preparation method of the present invention, the carrier is prepared by a method comprising the following steps:

[0086] (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 Group IVB 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 finally prepared alumina hydrate has a combination material with a value of 1.8-5,

[0087] 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,

[0088]

[0089] said The value is determined by the following method: 1...

preparation Embodiment 1-10

[0200] Preparation Examples 1-10 were used to prepare the support.

preparation Embodiment 1

[0202] The hydrated alumina wet gel used in this preparation example is the hydrated alumina gel solution prepared by the acid method (sodium metaaluminate-aluminum sulfate method, taken from Sinopec Changling Branch) in the aging process to add four Titanium chloride, and the pseudo-boehmite wet filter cake obtained by washing and filtering (the wet filter cake is numbered as SLB-1), after measurement, the i value of this wet filter cake is 77.7%. 2 The calculated titanium content is 1% by weight.

[0203] (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 stirring for 10 minutes with a mechanical stirrer, the obtained mixture is the hydrated alumina composition of the present invention, and its property parameters are listed...

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PUM

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Abstract

The invention relates to the technical field of hydrocarbon oil hydrogenation, in particular to a catalyst with hydrogenation catalysis, a preparation method and application thereof, and a heavy oil hydrodeasphalting method. The catalyst contains a carrier and a hydrogenation active component supported on the carrier, the hydrogenation active component contains at least one VB group metal element, and the carrier will contain hydrated alumina and have at least two proton acceptor sites. A compound and a composition of at least one compound containing a Group IVB metal element are obtained by molding. The catalyst of the invention uses the hydrated alumina wet gel as the starting material to prepare a carrier with high strength, omits the step for drying the hydrated alumina wet gel, simplifies the overall process flow, and reduces the overall operation energy consumption , avoiding the dust pollution caused by using pseudo-boehmite dry rubber powder as the raw material to prepare the carrier, and greatly improving the working environment. The catalyst according to the present invention has high catalytic activity.

Description

technical field [0001] The present invention relates to the technical field of hydrocarbon oil hydrogenation, specifically, the present invention relates to a catalyst with hydrogenation catalysis and its preparation method and application, and the present invention also relates to a heavy oil hydrogenation deasphaltene method using the catalyst . Background technique [0002] In the traditional catalyst preparation method, alumina shaped body, especially γ-alumina shaped body, is often used as the carrier of supported catalyst because of its good pore structure, suitable specific surface area and high heat resistance stability. use. This kind of alumina is usually obtained from dried hydrated alumina, such as pseudo-boehmite, which is 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-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/28B01J23/30B01J37/02B01J37/08C10G45/04
CPCC10G45/04B01J23/002B01J23/28B01J23/30B01J37/0018B01J37/0201B01J37/088B01J2523/00C10G2300/206C10G2300/205B01J2523/31B01J2523/47B01J2523/48B01J2523/55B01J2523/68B01J2523/69
Inventor 孙淑玲杨清河胡大为曾双亲刘涛
Owner CHINA PETROLEUM & CHEM CORP