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Catalyst and preparation method and application thereof, and hydrocracking method

A technology of catalysts and inorganic oxides, applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems that need to be further improved, and achieve high pore concentration, high catalytic efficiency, and high middle distillate The effect of oil selectivity

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although CN101757929A discloses that the pore concentration of the carrier can be more than 7, but from the examples disclosed in CN101757929A, the highest pore concentration of the carrier is 21.4, which needs to be further improved

Method used

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  • Catalyst and preparation method and application thereof, and hydrocracking method
  • Catalyst and preparation method and application thereof, and hydrocracking method

Examples

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preparation example Construction

[0035] The invention also provides a preparation method of the catalyst, which comprises: loading the active component with catalytic effect on the porous carrier.

[0036] According to the method of the present invention, the porous carrier is prepared by the following method: mixing a precursor capable of forming a heat-resistant inorganic oxide under calcination conditions with a peptizer and water to provide a raw material; sending the raw material into an extrusion out of the machine, and extruded after kneading in the extruder to obtain a molded body; the molded body is roasted to obtain the porous carrier, wherein the molded body is at the outlet of the extruder The temperature at the place is 40-150°C.

[0037] According to the present invention, 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 about room temperature ...

preparation example 1

[0109] This preparation example is used to prepare the porous carrier in the catalyst according to the present invention.

[0110] Get 98.6g of CL powder (commercially purchased from Changling Catalyst Factory, dry basis content is 71% by weight, is a kind of pseudo-boehmite, relative crystallinity is 98.1%, and average particle diameter is 33nm, the same below), silicon-alumina Powder SIRAL 70 powder (commercially available from sasol company, 81% by weight on a dry basis, is a mixture of hydrates of aluminum oxide and hydrates of silicon oxide, calculated as oxides, the content of silicon oxide is 70% by weight, aluminum oxide The content is 30% by weight, the average particle diameter is 57nm, the same below) 37.1g, add 4g of squat powder and dry mix uniformly to obtain dry powder. Add 1.5mL of concentrated nitric acid (concentration: 65% by weight, the same below) and 3g of triethanolamine into a beaker containing 110mL of deionized water, and mix evenly to obtain an acid ...

preparation example 2

[0112] This preparation example is used to prepare the porous carrier in the catalyst according to the present invention.

[0113] Get 73.8g of C1 powder (commercially purchased from sasol company, dry basis content is 74.5% by weight, is a kind of pseudo-boehmite, relative crystallinity is 93.1%, and average particle diameter is 53nm), silica-alumina powder SIRAL 40 powder ( Commercially available from sasol company, dry basis content is 77.5% by weight, it is a mixture of hydrate of alumina and hydrate of silicon oxide, the content of silicon oxide is 40% by weight, and the content of aluminum oxide is 60% by weight %, the average particle diameter is 55nm, the same below) 51.6g, USY molecular sieve (unit cell constant is The relative crystallinity is 74.6%, and the dry basis content is 76.9% by weight) 6.5g, and 4g of safflower powder is dry-mixed evenly to obtain a dry powder. Add 3mL of concentrated nitric acid into a beaker containing 103mL of deionized water, and mix ...

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Abstract

The invention provides a catalyst and a preparation method and an application thereof. The catalyst contains a porous carrier and active ingredients loaded on the porous carrier, wherein the porous carrier contains a heat-resistant inorganic oxide; and the most probable pore diameter of the porous carrier is 1-30 nanometers, and the pore diameter concentration ratio is 22-48. The preparation method of the catalyst comprises loading the active ingredients onto the porous carrier. A preparation method of the porous carrier comprises the following steps of: mixing a precursor which can be used for forming a heat-resistant inorganic oxide with a peptizing agent and water under a roasting condition to provide raw materials; feeding the raw materials into an extruder, and kneading and extruding in the extruder to obtain a formed body, wherein the temperature of the formed body at the outlet of the extruder is 40-150 DEG C; and roasting the formed body to obtain the porous carrier. The invention further provides a hydrocracking method. The hydrocracking method comprises contacting hydrocarbon oil with the catalyst provided by the invention. The catalyst provided by the invention has high catalytic activity and intermediate oil selectivity when applied to catalytic cracking of hydrocarbon oil.

Description

technical field [0001] The invention relates to a catalyst, its preparation method and application, and a hydrocracking method. Background technique [0002] 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, 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 key factor. [0003] Catalysts used for the conversion of heavy oil or macromolecules require not only a large pore size and sufficient pore volume, but also a concentrated pore size distribution of the pores in the catalyst (that is, a high pore size concentration). [0004] Since catalysts used for the conversion of heavy oil or macromolecules are generally obtained by loading catalytically active components on porous carriers, the preparation has larger pore diameter and pore vol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J35/10B01J29/16B01J29/48B01J23/888C10G47/20C10G47/12
Inventor 董松涛辛靖聂红石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
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