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Supported multi-metal component catalyst, its preparation method and application, and cycloalkane hydrogenolysis ring-opening method

A metal component and catalyst technology, which is applied in the field of supported multi-metal component catalysts and their preparation, can solve the problems of low ring-opening activity and selectivity of cycloalkane hydrogenolysis, and achieve excellent catalytic performance and high catalytic cycloalkane hydrogenolysis ring-opening activity , the effect of low cracking rate

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

[0009] The object of the present invention is to provide a kind of supported multi-metal component catalyst with higher cycloalkane hydrogenolysis ring-opening activity and selectivity and its Preparation method and application and cycloalkane hydrogenolysis ring-opening method

Method used

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  • Supported multi-metal component catalyst, its preparation method and application, and cycloalkane hydrogenolysis ring-opening method
  • Supported multi-metal component catalyst, its preparation method and application, and cycloalkane hydrogenolysis ring-opening method
  • Supported multi-metal component catalyst, its preparation method and application, and cycloalkane hydrogenolysis ring-opening method

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Embodiment approach

[0028] According to a preferred embodiment of the present invention, the catalyst satisfies [(M 2 +M 3 ) / M 1 ] XPS / [(M 2 +M 3 ) / M 1 ] XRF =2-8, it is further preferred that the catalyst satisfies [(M 2 +M 3 ) / M 1 ] XPS / [(M 2 +M 3 ) / M 1 ] XRF =2.5-5.

[0029] According to a preferred embodiment of the present invention, the catalyst satisfies (M 2 / M 3 ) XRF =0.05-1.5, preferably the catalyst satisfies (M 2 / M 3 ) XRF =0.1-1, further preferably the catalyst satisfies (M 2 / M 3 ) XRF = 0.6-0.7. The inventors of the present invention found that specific (M 2 / M 3 ) XRF , that is, the weight ratio of the second metal component to the third metal component in the catalyst characterized by X-ray fluorescence spectrum in terms of metal elements, so that the catalyst performance of the catalyst is further improved.

[0030] The present invention uses X-ray photoelectron spectroscopy to characterize the surface atomic composition of the catalyst, uses X-ray...

Embodiment 1

[0072] This example is used to illustrate the catalyst provided by the present invention and its preparation method.

[0073] According to the required metal salt content of the equal volume impregnation method, 32.4 milliliters of nickel nitrate and iridium chloride impregnation solution containing 167 grams per liter of nickel and 2.22 grams per liter of iridium were prepared. Decant the impregnation solution into 40 g of SiO 2 -Al 2 o 3 Carrier (Sasol amorphous silica-alumina, average particle size 40-80 microns, the same below), after stirring at 25°C for 4 hours, drying at 120°C, calcination at 350°C for 4 hours, hydrogen reduction at 350°C for 4 hours, The hydrogen pressure is 0.1 MPa. Reduce to room temperature after reduction, and add 48.6 milliliters of iridium chloride containing 2.96 grams per liter of iridium and 2.96 grams per liter of platinum and platinum dichlorotetraammine in 48.6 milliliters under a hydrogen atmosphere. Blow dry with hydrogen. Then by O ...

Embodiment 2

[0091] This example is used to illustrate the catalyst provided by the present invention and its preparation method.

[0092] According to the required metal salt content of the equal volume impregnation method, 32.4 milliliters of nickel nitrate and iridium chloride impregnation solution containing 167 grams per liter of nickel and 2.22 grams per liter of iridium were prepared. The impregnating liquid is decanted to 40 grams of hydrogen type Y-Beta composite molecular sieves-alumina carrier (prepared according to the carrier D1 of Example 1 of CN101992120A, the following is the same), stir evenly at 25 ° C, after standing for 4 hours, through 110 ° C Drying, calcination at 500°C for 4 hours, hydrogen reduction at 350°C for 4 hours, hydrogen pressure at 0.1 MPa. Reduce to room temperature after reduction, and add 48.6 milliliters of iridium chloride containing 2.96 grams per liter of iridium and 2.96 grams per liter of platinum and platinum dichlorotetraammine in 48.6 millilit...

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Abstract

The invention relates to the field of catalyst preparation, and discloses a supported multi-metal component catalyst, its preparation method and application, and a ring-opening method for cycloalkane hydrogenolysis. The catalyst includes a carrier, and a hydrogenation active metal component loaded on the carrier. The hydrogen active metal component comprises a first metal component M selected from cobalt and / or nickel elements 1 , the second metal component M selected from platinum and / or palladium elements 2 and the third metal component M which is iridium 3 ; and the catalyst satisfies [(M 2 +M 3 ) / M 1 ] XPS / [(M 2 +M 3 ) / M 1 ] XRF =2‑20, (M 2 / M 3 ) XRF =0.05‑10. The catalyst provided by the invention is particularly suitable for catalyzing the ring-opening reaction of cycloalkane hydrogenolysis at low temperature, and has significantly higher activity and selectivity for catalyzing the hydrogenolysis ring-opening reaction of cycloalkane at low temperature.

Description

technical field [0001] The invention relates to the field of catalyst preparation, in particular to a supported multi-metal component catalyst, its preparation method and application, and a method for using the catalyst to catalyze cycloalkane hydrogenolysis and ring opening. Background technique [0002] With the development of the world economy, the demand for diesel is increasing day by day. It is impossible to meet this demand by straight-run diesel oil alone, so secondary processed diesel oil such as catalytic cracking diesel oil and coking diesel oil needs to be transferred. These secondary processed diesel oils contain a large amount of sulfur, nitrogen and aromatics, among which sulfur and nitrogen can be removed by traditional sulfide catalysts, and the conversion and removal of aromatics is the main technical difficulty. Excessively high aromatics content in diesel will not only reduce the cetane number and oil quality, but also increase particulate emissions in d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89C10G45/62
CPCB01J23/002B01J23/892B01J23/8913C10G45/62B01J2523/00C10G2300/70B01J2523/828B01J2523/827B01J2523/847B01J2523/845B01J2523/824
Inventor 董笑徐柏庆郑仁垟郑爱国李会峰李明丰夏国富
Owner CHINA PETROLEUM & CHEM CORP
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