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A catalyst for hydrotreating hydrocarbon oil and a method of hydrotreating hydrocarbon oil using the catalyst

A technology for hydroprocessing and catalysts, which is applied in the fields of hydrocarbon oil treatment, chemical instruments and methods, catalyst activation/preparation, etc. It can solve the problems of high dispersibility of inorganic oxide components and insufficient improvement of catalytic performance, etc. , to achieve long catalyst life and improve economic efficiency

Pending Publication Date: 2021-12-21
NIPPON KETJEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the catalytic performance has not been sufficiently improved due to no mention of high dispersion properties of the inorganic oxide components in the support

Method used

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  • A catalyst for hydrotreating hydrocarbon oil and a method of hydrotreating hydrocarbon oil using the catalyst
  • A catalyst for hydrotreating hydrocarbon oil and a method of hydrotreating hydrocarbon oil using the catalyst
  • A catalyst for hydrotreating hydrocarbon oil and a method of hydrotreating hydrocarbon oil using the catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Add aluminum sulfate solution (as Al 2 0 3 8.1% by mass), sodium aluminate solution (as Al 2 0 3 21.6% by mass) and titanyl sulfate solution (with TiO 2 13.6% by mass) and water glass and mixed to prepare a silica-titania-alumina hydrate gel (silica / titania / alumina mass ratio: 0.2 / 9.8 / 90.0). After separating the hydrate from the solution, rinse with warm water and remove impurities, peptize by adding an organic acid, heat knead with a kneader to adjust the water content to 67%, extrude and mold, and in air at 600°C Calcined for 1.5 hours to obtain a silica-titania-alumina support.

[0100] The carrier is impregnated with an aqueous solution containing molybdenum trioxide, basic cobalt carbonate, phosphoric acid and citric acid monohydrate (0.1 times the molar amount relative to the amount of molybdenum and cobalt), so that the carrier contains 24% by mass of molybdenum trioxide, 4% by mass of cobalt oxide and 2% by mass of phosphorus oxide. After drying at 120°C f...

Embodiment 2

[0102] Catalyst B was prepared by the same method as in Example 1, except that the impregnation solution to be added in Example 1 was used in an amount of 0.1 times molar and 0.2 times molar relative to the total moles of molybdenum and cobalt, respectively. Organic additives of citric acid monohydrate and polyethylene glycol (average molecular weight: 200). Table 4 shows the physical properties and chemical composition of Catalyst B.

Embodiment 3

[0104] Catalyst C is prepared by the same method as in Example 1, except that the addition amount of titanyl sulfate is changed in Example 1 to prepare silica-titania-alumina hydrate gel (silicon dioxide / titania / Alumina mass ratio: 0.2 / 8.2 / 91.6). Table 4 shows the physical properties and chemical composition of Catalyst C.

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Abstract

To provide a catalyst having hydrotreatment (hydrogenation, desulfurization and denitrogenation) performance that is equal to or superior to the prior art, as a hydrotreating catalyst for hydrocarbon oils, and a hydrotreating process for hydrocarbon oils using the catalyst. A hydrotreating catalyst for hydrocarbon oils comprising, at least one metal selected from the group 6 of the periodic table, at least one metal selected from the groups 8 to 10 of the periodic table, and optionally further phosphorus and / or boron as catalytic active components supported on an inorganic porous support based on alumina, wherein the inorganic porous support comprises, as constituent components thereof, silica in an amount of less than 1% by mass with respect to the mass of the oxide and a metal of the group 4 of the periodic table in an amount of less than 13% by mass as an oxide; wherein the metal of the group 4 of the periodic table is highly dispersed in the inorganic porous support, a degree of dispersion thereof is shown by that no peak is substantially observed in the wave number range of 100 to 200 cm-1 by Raman spectroscopy and that no crystal is substantially observed by X-ray diffraction analysis; wherein the hydrotreating catalyst has a specific surface area of 100 to 300 m2 / g, a pore volume of 0.2 to 0.5 ml / g, an average pore diameter of 6 to 10 nm, and a NO adsorption amount of 4.5 cm3 / ml or more as catalytic characteristics; and wherein no crystals derived from the metal oxide salts of the group 6 of the periodic table are not substantially observed by X-ray diffraction analysis.

Description

technical field [0001] The present invention relates to a hydrogenation catalyst for removing impurities such as sulfur and nitrogen contained in hydrocarbon oil and a method of using the same. Background technique [0002] In view of the global trend of improving air quality in recent years, further performance improvement of hydrogenation catalysts for performing hydrofinishing (such as desulfurization, denitrogenation, etc.) of distillate oil as the main fuel is required. Commonly used hydrotreating catalysts for hydrocarbon oils are inorganic refractory supports such as alumina or silica, on which molybdenum and hydrogenation active metal components such as cobalt or nickel are supported. [0003] However, in recent years, catalysts require not only improvement in desulfurization performance, but also stability of catalyst performance and economical efficiency contributing to hydroprocessing unit operation efficiency. As a response to this demand, a catalyst technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/19B01J35/10C10G45/08
CPCB01J27/19C10G45/08B01J2523/00B01J37/0203B01J23/002B01J23/882B01J23/883B01J37/0018B01J37/088B01J37/086B01J37/20B01J35/633B01J35/615B01J35/647B01J2523/31B01J2523/41B01J2523/47B01J2523/51B01J2523/68B01J2523/845B01J2523/847B01J21/04C10G2300/202C10G2300/301C10G2300/308C10G2300/4018B01J35/613
Inventor 野中研司森元大贵大下龙一
Owner NIPPON KETJEN CO LTD
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