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Porous support used for hydrogenation catalyst, preparation method of porous support and hydrocracking catalyst and hydrocracking catalysis method

A technology of hydrogenation catalyst and porous carrier, which is applied in the field of hydrocracking catalyst and hydrocracking, can solve the problems of low BMCI value and lower tail oil BMCI value, and achieve high selectivity effect

Inactive Publication Date: 2014-10-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the technical problem that existing hydrogenation catalysts need to improve the selectivity of middle distillate oil and reduce the BMCI value of tail oil under the high hydrogenation activity metal content, and provide a kind of porous carrier and preparation method thereof, by When the hydrocracking catalyst prepared by the porous carrier is used for hydrocracking of hydrocarbon oil, tail oil with low BMCI value can be obtained even at low catalytically active metal content, and it also has a higher selection of middle distillates sex

Method used

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  • Porous support used for hydrogenation catalyst, preparation method of porous support and hydrocracking catalyst and hydrocracking catalysis method

Examples

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Effect test

preparation example Construction

[0050] The method for preparing a porous carrier according to the present invention further includes step (2): feeding the raw material mixture into an extruder, kneading in the extruder and then extruding to obtain a shaped body.

[0051] The raw material mixture can be fed into an extruder for kneading and extrusion under normal conditions in the art to obtain a shaped body. In the process of extruding the raw material with an extruder to obtain a molded body, the cooling conditions of the extruder are generally controlled so that the temperature of the extruded molded body is near room temperature (below 40°C), but The temperature of the formed body at the outlet of the extruder is 40-150° C., and the prepared porous carrier has a higher pore size concentration, which can reach 28 or more. Preferably, the temperature of the shaped body at the outlet of the extruder is 50-120°C. Further preferably, the temperature of the shaped body at the outlet of the extruder is 60-100°C...

Embodiment 1

[0082] (1) 120.3g C powder (a kind of pseudo-boehmite, purchased from Changling Catalyst Factory, dry basis content of 73.5% by weight, relative crystallinity of 91.7%, average particle size of 55nm), 67.9g of Siral30 powder (purchased from Sasol, dry basis content of 77.5 wt%, based on oxide, alumina content of 69.8 wt%, silica content of 30.2 wt%, average particle size of 55 nm, XRD test confirmed to have pseudoboehmite structure) and 7.4g USY-1 molecular sieve (80.5% by weight on a dry basis, the unit cell constant is The crystallinity is 87.1%, and the sodium oxide content is 0.09% by weight) and mixed uniformly to obtain mixed powder. 11.3 g of aluminum nitrate was added to 138 mL of deionized water (at 25° C.) to prepare a solution, and then mixed with the above mixed powder to obtain a raw material mixture. The obtained raw material mixture was sent to an extruder and kneaded for 15 minutes, and then extruded to obtain a clover-shaped bar with a circumscribed circle d...

Embodiment 2

[0096] (1) The porous carrier was prepared by the same method as in Example 1, except that the cooling conditions of the extruder were controlled so that the temperature of the extrudate at the outlet of the extruder was 50°C. The pore size distribution, pore size concentration and radial crushing strength of the obtained porous supports are listed in Table 1.

[0097] (2) The catalyst was prepared by the same method as in Example 1, except that the porous carrier was the porous carrier prepared in step (1) of Example 2.

[0098] (3) The catalyst prepared in step (2) of Example 2 was evaluated by the same method as step (3) of Example 1, and the results are listed in Table 2.

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Abstract

The invention provides a porous support used for a hydrogenation catalyst and a preparation method of the porous support. The porous support contains silicon oxide-aluminium oxide and Y type molecular sieves, wherein based on the total quantity of the porous support, the content of silicon oxide-aluminium oxide is 20-98wt%; the weight ratio of Y type molecular sieves to silicon oxide-aluminium oxide is (0.02-0.2) to 1. The invention also provides a hydrocracking catalyst and a hydrocracking catalysis method. The catalyst contains the porous support and group VIB and VIII metallic elements loaded on the porous support, wherein the porous support is provided by the invention. The catalyst prepared by adopting the porous support can obtain tail oil with low BMCI (bureau of mines correlation index) value even under the condition of low content of metals with catalytic activities and simultaneously can obtain higher middle distillate selectivity when being used for hydrocracking of hydrocarbon oil.

Description

technical field [0001] The present invention relates to a porous carrier for a hydrogenation catalyst and a preparation method thereof, the present invention also relates to a hydrocracking catalyst containing the porous carrier, and the present invention further relates to a hydrocracking method using the hydrocracking catalyst . Background technique [0002] In recent years, the tendency of crude oil to become heavier and inferior in the world has become more and more obvious. At the same time, the demand for middle distillates and reforming and steam cracking feedstocks is increasing. This has prompted the rapid development of heavy distillate processing technology, and catalyst is the most important and critical factor. [0003] In addition to producing high-quality middle distillates, hydrocracking technology can adjust product varieties and yields according to market demand. Through the combination and gradation of various catalysts, according to the actual conditions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J35/10B01J29/16C10G47/20
CPCC10G47/20B01J29/08B01J29/166B01J35/30B01J35/64
Inventor 董松涛赵阳辛靖胡志海聂红
Owner CHINA PETROLEUM & CHEM CORP
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