A kind of heavy distillate oil hydrogenation treatment catalyst and its application

A heavy distillate oil, hydrotreating technology, applied in physical/chemical process catalysts, hydrocarbon oil cracking, petroleum industry, etc., can solve problems such as low liquid yield, achieve improved interaction, reduce carbon deposition, and satisfy properties required effect

Active Publication Date: 2022-01-04
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst has high hydrodenitrogenation activity, but the disadvantage is that the liquid yield is low

Method used

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  • A kind of heavy distillate oil hydrogenation treatment catalyst and its application
  • A kind of heavy distillate oil hydrogenation treatment catalyst and its application
  • A kind of heavy distillate oil hydrogenation treatment catalyst and its application

Examples

Experimental program
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Effect test

preparation example Construction

[0033] The invention provides a kind of mesoporous TiO suitable for processing petroleum heavy distillates 2 -Al 2 o 3 , alumina as a carrier material for hydrotreating catalysts, and provide the mesoporous TiO 2 -Al 2 o 3 method of preparation.

[0034] The present invention is characterized in that the mesoporous alumina is synthesized through template agent guidance, and at the same time, titania is introduced into the mesoporous alumina carrier. Mesoporous TiO 2 -Al 2 o 3 Precursors and alumina are used as composite supports. By adjusting the content of each support component, heavy oil hydrotreating catalyst supports with different titanium modifications, different surface areas and suitable acid distribution can be prepared.

[0035] The catalysis provided by the present invention includes an active component and a catalyst carrier, and the active component includes 10% to 40% of a VIB group metal oxide, 1% to 20% of a VIII group metal oxide and / or by weight perc...

Embodiment 1

[0049] Example 1 Template-directed synthesis of mesoporous TiO 2 -Al 2 o 3 TA-1

[0050] (1) 230 gram pseudo-boehmite is joined in 200ml water and stirred and beaten, the nitric acid solution of the 1mol / L of 300ml is added dropwise, obtains the pseudo-boehmite suspension of acidification, the pH of regulating glue solution is 4;

[0051] (2) Add ammonia water to the mixture of step (1) to adjust the pH of the reaction system to be 9, then add 7 g of template agent cetyltrimethylammonium bromide (CTABr), and stir and react in a water bath at 45 ° C for 0.5 h , template agent: A1 3+ The molar ratio is 0.006;

[0052] (3) Add 20 g of ethanol to the mixture obtained in step (2), react for 0.5 h, then add 200 g of butyl titanate, react for 0.5 h, and then transfer to a crystallization tank for aging for 15 h.

[0053] (4) Suction filter the mixture obtained in step (3), and then dry the filter cake at 120°C for 4 hours to obtain mesoporous TiO 2 -Al 2 o 3 Precursor.

Embodiment 2

[0054] Example 2 Template-directed synthesis of mesoporous TiO 2 -Al 2 o 3 TA-2

[0055] (1) 300 grams of pseudo-boehmite are added into 200ml of water and stirred for beating, and the nitric acid solution of 1 mol / L of 300ml is added dropwise to obtain acidified pseudo-boehmite suspension, and the pH of the glue solution is adjusted to be 4 ;

[0056] (2) Add ammonia water to the mixture of step (1) to adjust the pH of the reaction system to be 9, then add 10 g of template agent cetyltrimethylammonium chloride (CTACl), and stir the reaction in a water bath at 40-50°C 0.5h, templating agent: A1 3+ The molar ratio is 0.0067;

[0057] (3) Add 20 g of ethanol to the mixture obtained in step (2), react for 0.5 h, then add 200 g of butyl titanate, react for 0.5 h, and then transfer to a crystallization tank for aging for 15 h.

[0058] (4) Suction filter the mixture obtained in step (3), and then dry the filter cake at 120°C for 4 hours to obtain mesoporous TiO 2 -Al 2 o 3...

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Abstract

A heavy distillate oil hydrotreating catalyst and its application. The catalyst includes an active component and a catalyst carrier, and the active component includes 10% to 40% of a VIB group metal oxide, 1% to 20% of a VIII group metal oxide and / or 0.1% to 10% by weight of the catalyst VA group oxide; by weight percentage of the catalyst support, the catalyst support includes mesoporous TiO 2 ‑Al 2 o 3 10-50wt%, 30-80wt% alumina, 5-25wt% binder, and 1-5wt% extrusion aid; wherein the mesoporous alumina precursor is prepared by the template-directed method, and then introduced into the precursor solution Titanium oxide, titanium isopropoxide or butyl titanate to obtain a titanium-modified mesoporous alumina carrier with large specific surface area and pore volume. The catalyst of the invention has good hydrodesulfurization and hydrodenitrogenation activities for heavy petroleum fractions.

Description

technical field [0001] The present invention relates to a kind of mesoporous TiO 2 -Al 2 o 3 , Aluminum oxide as a catalyst for heavy petroleum distillate hydrotreating as a composite carrier. Background technique [0002] With the intensification of the trend of heavy and inferior crude oil in the world, the proportion of inferior heavy oil continues to increase, and it is more important to effectively process heavy distillate oil, and hydrotreating is the most effective processing of heavy distillate oil One of the techniques. [0003] The key to hydroprocessing technology is the catalyst, and the basis for improving the performance of the catalyst is the development of new catalytic materials. As we all know, the carrier material needs to have a large specific surface area, pore volume and pore size to increase the metal loading and dispersibility of the catalyst, which is beneficial to the diffusion of molecules during the reaction process; the carrier material also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/19B01J35/10C10G47/12
Inventor 吴显军王刚倪术荣徐伟池李凤铉靳丽丽夏恩冬王锐张全国李实马守涛张浩张铁珍郭淑芝郭立艳高晓宇李亮亮赵枫郭立国
Owner PETROCHINA CO LTD
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