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Hydrocracking catalyst and preparation method thereof

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of low performance of hydrodesulfurization and hydrodecarbonization and other problems to achieve the effect of improving performance

Active Publication Date: 2010-06-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of low hydrodesulfurization and hydrodecarbonization performance of hydrocracking catalysts in the prior art, and provide a hydrocracking catalyst with high hydrodesulfurization and hydrodecarbonization performance and its preparation method

Method used

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  • Hydrocracking catalyst and preparation method thereof
  • Hydrocracking catalyst and preparation method thereof

Examples

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preparation example Construction

[0023] The preparation method of the hydrocracking catalyst provided by the present invention includes loading the hydrogenation active component and the IVB group metal component in the periodic table on the carrier respectively, wherein the carrier has a pore structure, and the pore structure The most probable pore diameter is 6-14 nanometers, and the pore concentration is more than 7. The pore concentration refers to the ratio of the peak height to the half maximum width in the distribution curve of the differential of the specific pore volume to the pore diameter versus the pore diameter.

[0024] The steps of drying and calcining can be performed after each contact, or after all contacts.

[0025] Wherein, the pore distribution and types of the carrier have been described in detail above, and will not be repeated here.

[0026] In the process of preparing the hydrocracking catalyst, the amount of each substance is based on the total amount of the catalyst, and the content...

Embodiment 1

[0046] This example illustrates the preparation of the hydrocracking catalyst provided by the present invention.

[0047] Take by weighing 150 grams of SD-2 powder (purchased from Changling Catalyst Factory, produced in 2004, alumina content 64.4%, specific surface area 268m 2 / g, the diameter of several pores is 9.7nm, and the concentration of pores is 4.1), extruded into a butterfly bar with a circumcircle diameter of 1.4 mm with an extruder, and dried at 120°C for 6 hours. Then, the carrier was calcined for 3 hours at 600° C. under the condition of flowing air, and the air flow rate was 1.6 cubic meters / kg·hour. The pore structure of the carrier is measured by the BET method, and the distribution curve of the differential (dV / dr) of the specific pore volume to the pore diameter (dV / dr) with the pore diameter is obtained, such as figure 1 shown.

[0048] Weigh ammonium fluotitanate according to the loading capacity of titanium oxide at 12% by weight, add 65ml of water, dis...

Embodiment 2

[0051] This example illustrates the preparation of the hydrocracking catalyst provided by the present invention.

[0052] Take by weighing 150 grams of CL powder (purchased from Changling Catalyst Factory, the 147th batch produced in 2007, alumina content 72.8%, specific surface area 299m 2 / g, several pore diameters 14.5nm, pore concentration 3.6), extruded into a cylindrical strip with a circumscribed circle diameter of 1.1 mm with an extruder, and dried at 150°C for 4 hours. Then, the carrier was calcined for 4 hours under the condition of 580° C. under the condition of flowing air, and the air flow rate was 1.1 cubic meters / kg·hour. The BET method was used to measure the most probable pore size and pore size concentration of the carrier, and the results are shown in Table 1.

[0053] Weigh ammonium fluozirconate according to the loading capacity of zirconia at 8% by weight, add 85ml of water, dissolve under stirring, mix this solution with 100 grams of carrier, keep it in...

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Abstract

The invention relates to a hydrocracking catalyst and a preparation method thereof. The catalyst contains a carrier, a hydrogenering active component loaded on the carrier, and IVB group metal components in the periodic table of elements, wherein the pore diameter of the most probable pore of the carrier is 6-12 nanometers, the concentration degree of the pore diameter is more than 7, and the concentration degree of the pore diameter is the ratio of the height of a peak and the half-height width of the peak in a distribution curve of the differentiation of specific pore volume to the pore diameter with the pore diameter. Compared with the existing hydrocracking catalyst, the hydrocracking catalyst provided by the invention has smaller pore diameter of the carrier (the pore diameter of the most probable pore is small), the distribution is concentrated (the concentration degree of the pore diameter is high), and the hydrodesulfurization and hydrogenation carbon residue removal of the catalyst are obviously improved.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof. Background technique [0002] In recent years, the tendency of crude oil to be heavy and inferior has become increasingly obvious worldwide. At the same time, the demand for middle distillates and reforming and steam cracking raw materials has been increasing. This has prompted the rapid development of heavy distillate oil processing technology, and hydrogenation catalysts, including hydrofinishing, hydrotreating and hydrocracking catalysts, are the most important and key factors. [0003] For residual oil hydrogenation catalysts, catalyst deactivation is often the biggest problem that needs to be faced. In addition to requiring the catalyst to have a large pore size and sufficient pore volume, it also requires the necessary active metals to activate hydrogen. On the one hand, the The reactants are hydrogenated, and on the other hand, the deactivation of the catalyst i...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J21/06B01J35/10C10G45/08
Inventor 董松涛刘涛辛靖曾双亲杨清河牛传峰戴立顺聂红石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
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