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Spherical hydrogenation catalyst composition and preparation method thereof

A hydrogenation catalyst and composition technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve problems such as uneven distribution of additives, and achieve improved The ability to demetallize and accept metals, improve the overall performance, and avoid the effect of clogging

Active Publication Date: 2019-03-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few literature reports on the uneven distribution of additive concentration

Method used

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  • Spherical hydrogenation catalyst composition and preparation method thereof
  • Spherical hydrogenation catalyst composition and preparation method thereof
  • Spherical hydrogenation catalyst composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 400g of triethylammonium chloride, 220g of sodium hexafluorophosphate, and 450g of pure water were mixed, heated to 90°C under stirring, kept at a constant temperature for 3 hours, clarified, naturally cooled to about 30°C, and centrifuged to filter out the solid to obtain 450g of ionic liquid I. The water content is about 3.5wt%, and the yield is 72wt%.

[0044] Trimethylphenylammonium chloride 500g, sodium hexafluorophosphate 260g, pure water 450g, mix, heat to 90°C under stirring, keep the temperature for 3 hours, clarify, naturally cool to about 30°C, centrifuge and filter out the solid to obtain the ionic liquid II 550g, water content about 3.5wt%, yield 74wt%.

[0045] Add 15g of ionic liquid I and 2L of distilled water into the reaction kettle, adjust the reaction temperature to 60°C, mix sodium metaaluminate (calculated as alumina, the concentration is 26g / mL) and aluminum sulfate (calculated as alumina, the concentration is 8g / mL) ) parallel flow for neutraliz...

Embodiment 2

[0053] Triethylammonium chloride 300g, sodium hexafluorophosphate 160g, pure water 350g, mixed, heated to 100°C under stirring, kept at constant temperature for 2.5h, clarified, naturally cooled to about 30°C, centrifuged to filter out the solid to obtain 420g of ionic liquid I , the water content is about 3.7wt%, and the yield is 72wt%.

[0054] Dimethylphenylammonium chloride 600g, sodium hexafluorophosphate 300g, pure water 550g, mix, heat to 70°C under stirring, keep the temperature for 3 hours, clarify, naturally cool to about 30°C, centrifuge and filter out the solid to obtain an ionic liquid II 550g, water content about 4.0wt%, yield 74wt%.

[0055] Add 20g of ionic liquid I and 2L of distilled water into the reaction kettle, adjust the reaction temperature to 60°C, mix sodium metaaluminate (calculated as alumina, the concentration is 26g / mL) and aluminum sulfate (calculated as alumina, the concentration is 8g / mL) ) parallel flow for neutralization reaction, the pH val...

Embodiment 3

[0063] Tetraethylammonium chloride 450g, sodium hexafluorophosphate 250g, pure water 500g, mixed, heated to 90°C under stirring, kept at constant temperature for 3 hours, clarified, naturally cooled to about 30°C, centrifuged to filter out the solid to obtain 650g of ionic liquid I , the water content is about 3.9wt%, and the yield is 75wt%.

[0064] 500g of methylphenylammonium chloride, 260g of sodium hexafluorophosphate, 450g of pure water, mix, heat to 90°C under stirring, keep the temperature for 3 hours, clarify, naturally cool to about 30°C, centrifuge and filter out the solid to obtain 550g of ionic liquid II , the water content is about 3.5wt%, and the yield is 74wt%.

[0065] Add 25g of ionic liquid I and 2L of distilled water into the reaction kettle, adjust the reaction temperature to 65°C, and mix sodium metaaluminate (calculated as alumina, with a concentration of 26g / mL) and aluminum sulfate (calculated as alumina, with a concentration of 8g / mL) ) parallel flow...

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Abstract

The invention discloses a spherical hydrogenated catalyst composition and a preparation method thereof. The composition comprises hydrogenated active metal, an additive and an alumina supporter, wherein the component of the hydrogenated active metal is one or more in VIB group metal and VIII group metal; the additive adopts one of the following I, II and III combinations: I-fluorine and phosphorus, II-fluorine and boron, III-fluorine, fluorine and boron, preferably III-fluorine, fluorine and boron, and the alumina supporter for the surplus; the concentrations of the hydrogenated active metal and the additive are gradually reduced from the center to the outer surface of a catalyst granule; the spherical hydrogenated catalyst has two-duct distribution, and the hole diameters are 10 to 15nm and 15 to 30nm. The preparation method comprises the following steps: adding ionic liquid with different molecule sizes and different additive element types during gel forming and mixing kneading processes, and then performing drying and calcination, so as to obtain the composition. The catalyst can ensure that a hole structure and acid distribution are organically matched with each other, has high demetalization activity and high metal containing capacity, and has a broad application prospect in high desulfuration and denitrification metal reaction of raw materials, such as poor-quality wax oil and residual oil.

Description

technical field [0001] The invention relates to a spherical hydrogenation catalyst composition and a preparation method thereof, in particular to a hydrogenation catalyst composition with decreasing concentrations of active metals and additives and dual pore channel distribution and a preparation method thereof. Background technique [0002] Crude oil and distillates derived from crude oil contain impurities such as sulfur, nitrogen, oxygen and metals. The existence of these impurities not only affects the stability of the oil, but also emits SO during use. X , NO X and other harmful gases pollute the environment. During the secondary processing of oil products, the presence of impurities such as sulfur, nitrogen, oxygen and metals can poison catalysts. Therefore, removing the above-mentioned impurities is an important process in oil processing. Distillate oil hydrotreating refers to the process of contacting raw oil and hydrogen with a catalyst at a certain temperature ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/887B01J23/883B01J35/08C10G45/08
Inventor 吕振辉彭绍忠张学辉高玉兰佟佳徐黎明
Owner CHINA PETROLEUM & CHEM CORP