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Porous carrier for hydrogenation catalyst, preparation method, hydrocracking catalyst and hydrocracking method

A technology of hydrogenation catalyst and porous carrier, applied in catalyst carrier, molecular sieve catalyst, chemical instrument and method, etc., can solve the problems of low BMCI value, lower BMCI value of tail oil, etc., and achieve high selectivity.

Pending Publication Date: 2018-02-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the technical problem that existing hydrogenation catalysts need to improve the selectivity of middle distillates and reduce the BMCI value of tail oil under the high hydrogenation activity metal content, and provide a kind of porous carrier and its preparation method, 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 carrier for hydrogenation catalyst, preparation method, hydrocracking catalyst and hydrocracking method

Examples

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preparation example Construction

[0051] 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 molded body.

[0052] The raw material mixture can be fed into an extruder for kneading and extrusion under conventional conditions in the art to obtain a molded body. In the process of extruding raw materials 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 around room temperature (less than 40° C.), but the The temperature of the molded 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 more than 28. Preferably, the temperature of the shaped body at the outlet of the extruder is 50-120°C. Further preferably, the temperature of the molded body at the outlet of the ext...

Embodiment 1

[0083] (1) 120.3g of C powder (a kind of pseudo-boehmite, purchased from Changling Catalyst Factory, with a dry basis content of 73.5% by weight, a relative crystallinity of 91.7%, and an average particle size of 55nm), 67.9g of Siral 30 Powder (purchased from Sasol company, dry basis content is 77.5% by weight, in terms of oxides, alumina content is 69.8% by weight, silicon oxide content is 30.2% by weight, average particle size is 55nm, XRD detection confirms to have pseudoboehmite Stone structure) and 7.4g USY-1 molecular sieve (dry basis content 80.5% by weight, unit cell constant is The crystallinity is 87.1%, the sodium oxide content is 0.09% by weight) and mixed uniformly to obtain mixed powder. Add 11.3 g of aluminum nitrate to 138 mL of deionized water (at 25° C.) to prepare a solution, then mix it with the above mixed powder to obtain a raw material mixture. The obtained raw material mixture was fed into an extruder and kneaded for 15 minutes, and then extruded to ...

Embodiment 2

[0097] (1) The porous carrier was prepared by the same method as in Example 1, except that the cooling condition of the extruder was 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.

[0098] (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.

[0099] (3) The catalyst prepared in step (2) of embodiment 2 was evaluated by the same method as step (3) of embodiment 1, and the results are listed in table 2.

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Abstract

The present invention provides a porous carrier for a hydrogenation catalyst and a preparation method for the porous carrier. The porous carrier contains silica-alumina and a Y-type molecular sieve, based on the total amount of the porous carrier, the content of silica-alumina is 20-98 wt%, and the weight ratio of the Y-type molecular sieve to the silica-alumina is (0.02-0.2):1. The present invention also provides a hydrocracking catalyst and a hydrocracking method. The catalyst comprises the porous carrier, and a Group VIB metal element and a Group VIII metal element which are loaded into theporous carrier, wherein the porous carrier is the porous carrier provided by the present invention. When the catalyst prepared by using the porous carrier of the present invention is used in hydrocracking of hydrocarbon oils, tail oils having a low BMCI value even at low catalytically active metal content can be obtained while also a higher middle distillate selectivity can be obtained.

Description

[0001] This application is a divisional application with the filing date of March 30, 2013, the application number of 201310108360.9, and the invention titled "Porous support for hydrogenation catalyst and its preparation method, hydrocracking catalyst and hydrocracking method" . technical field [0002] 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. The present invention further relates to a hydrocracking method using the hydrocracking catalyst . Background technique [0003] In recent years, the trend of heavy and inferior crude oil has become increasingly obvious worldwide. At the same time, the demand for middle distillates and reforming and steam cracking raw materials has continued to increase. This promotes the rapid development of heavy distillate processing technology, and catalyst is the most important and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/08B01J29/16B01J32/00C10G47/20
CPCB01J29/08B01J29/166B01J35/002B01J35/1052C10G47/20
Inventor 董松涛赵阳胡志海聂红
Owner CHINA PETROLEUM & CHEM CORP
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