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Diesel oil deep hydrogenation catalyst and preparation method and application thereof

A deep hydrogenation and catalyst technology, applied in the direction of catalyst carriers, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of impregnation effect, active component cluster effect, etc.

Active Publication Date: 2018-11-13
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The main purpose of the present invention is to provide a diesel deep hydrogenation catalyst and its preparation method and application to overcome the impregnation effect and active component clustering effect caused by the impregnation method in the preparation of diesel hydrogenation catalysts in the prior art Impact

Method used

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  • Diesel oil deep hydrogenation catalyst and preparation method and application thereof
  • Diesel oil deep hydrogenation catalyst and preparation method and application thereof
  • Diesel oil deep hydrogenation catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Get benchmark pseudo-boehmite 100g, 5wt% mulberry silk solid fiber silk, add 5wt% turnip powder and mix evenly, 7.5wt% nitric acid (65wt%), 5wt% citric acid and 100g deionized water form the mixed solution kneading, Extruded into a clover shape of 1.5 mm, dried at 120° C. for 2 hours, and then calcined at 550° C. for 4 hours to make carrier 1 .

Embodiment 2

[0044] Get benchmark pseudo-boehmite 100g, 10wt% coniferous wood solid fiber silk, add 5wt% turnip powder and mix evenly, 7.5wt% nitric acid (65wt%), 5wt% citric acid and 100g deionized water form the mixed solution kneading, Extruded into a clover shape of 1.5mm, dried at 120°C for 2 hours, and then calcined at 550°C for 4 hours to make carrier 2.

Embodiment 3

[0046] Get benchmark pseudo-boehmite 100g, 20wt% corn stalk solid fiber filaments, add 5wt% turnip powder and mix evenly, 7.5wt% nitric acid (65wt%), 5wt% citric acid and 100g deionized water form the mixed solution kneading, Extruded into a clover shape of 1.5 mm, dried at 120° C. for 2 hours, and then calcined at 550° C. for 4 hours to make carrier 3 .

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Abstract

The invention discloses a diesel oil deep hydrogenation catalyst and a preparation method and application thereof. The preparation method includes the steps of firstly, preparing an aluminum oxide carrier; secondly, preparing active component impregnation liquid, to be more specific, adding the precursor of an active component into a modifier aqueous solution, and adding competitive adsorption auxiliaries after the precursor is completely dissolved to obtain the active component impregnation liquid, wherein the mass ratio of the active component to the competitive adsorption auxiliaries to themodifier based on the mass of oxide is (1-7):(1-1.8):(1-5); thirdly, impregnating the aluminum oxide carrier obtained in the first step into the active component impregnation liquid obtained in the second step to obtain a wet catalyst strip, standing, drying, and calcining to obtain the diesel oil deep hydrogenation catalyst. When the prepared catalyst is used in diesel oil deep hydrogenation anddesulfurization, the hydrogenation and desulfurization activity of the catalyst is higher than that of a traditional impregnation method supported diesel oil deep hydrogenation catalyst.

Description

technical field [0001] The invention relates to a deep hydrogenation catalyst for diesel oil and its preparation method and application. The catalyst is especially suitable for the production of clean diesel oil of China V and China VI. Background technique [0002] As my country's diesel quality standards become increasingly stringent, the market demand for high-quality clean diesel is increasing year by year. Accelerating the upgrading of diesel quality and producing high-quality clean diesel is one of the key tasks of refining and chemical enterprises. To upgrade the quality of diesel oil in existing diesel hydrogenation units, currently available means include reducing the processing capacity of the unit, increasing the reaction severity of the unit, lowering the final boiling point of diesel oil, and using high-activity diesel hydrogenation catalysts. Measures such as reducing the processing capacity of the device, increasing the severity of the reaction of the device,...

Claims

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Application Information

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IPC IPC(8): B01J27/19B01J27/24B01J31/26B01J32/00C10G45/08
CPCC10G45/08B01J23/002B01J27/19B01J27/24B01J31/26C10G2300/202C10G2400/04B01J35/615B01J35/633
Inventor 马宝利徐铁钢刘茉徐伟池王丹宋金鹤于春梅张文成孙发民杨晓东谭明伟温广明方磊张英豪张铁珍赵野李瑞峰
Owner PETROCHINA CO LTD
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