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Hydrotreating catalyst as well as preparation method and application thereof

A hydrogenation treatment and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as poor stability, poor activity, and inability to meet the technical requirements for processing heavy crude oil , to achieve the effect of preventing strong interactions and solving poor stability

Inactive Publication Date: 2020-06-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catalysts with the characteristics of type I active centers have better stability, but poor activity; catalysts with the characteristics of type II active centers have poor stability, but higher activity
Currently, these two types of catalysts are not able to meet the technical demands of processing heavy crude oil

Method used

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  • Hydrotreating catalyst as well as preparation method and application thereof
  • Hydrotreating catalyst as well as preparation method and application thereof
  • Hydrotreating catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take 100g of alumina carrier Z, (see Table 1 for the properties, the same below), add 80mL of an aqueous solution containing methyldiethanolamine and hydroxy-modified silicone oil, wherein the content of methyldiethanolamine is 2.5 g, and the content of hydroxy-modified silicone oil is 15.3 g, impregnated on the carrier Z, cured for 6 hours, dried at 80°C for 4 hours, and then calcined at 280°C for 2 hours to obtain the modified carrier Z1.

[0033] Impregnate Z1 with an impregnating solution containing Mo, Ni, P and trimethylolpropane in equal volume, the molar ratio of trimethylolpropane to Mo content in the final catalyst is 0.05:1, dry at 140°C for 3h, and calcinate at 430°C for 2h, The finally obtained catalyst is denoted as C-1, and the composition and properties of the catalyst are shown in Table 2.

[0034] The catalyst activity evaluation experiment was carried out on a 100mL small hydrogenation unit, and the catalyst was presulfided before the evaluation. Catal...

Embodiment 2

[0036] Take 100g of alumina carrier Z, impregnate 80mL of an aqueous solution containing methyldiethanolamine and amino-modified silicone oil, wherein the content of methyldiethanolamine is 1.5 g, and the content of amino-modified silicone oil is 12 g, on the carrier Z, and keep it healthy for 6 hours , dried at 80°C for 4h, and then calcined at 280°C for 2h to obtain the modified carrier Z2.

[0037] Impregnate Z2 with an equal volume of impregnating solution containing Mo, Ni, P and tris, the molar ratio of tris to the Mo content of the final catalyst is 0.05:1, dry at 140°C for 3h, and calcine at 430°C for 2h , The catalyst finally obtained is denoted as C-2, and the composition and properties of the catalyst are shown in Table 2.

[0038] Catalyst activity evaluation conditions are the same as in Example 1, the properties of the feed oil are shown in Table 4, and the activity evaluation results are shown in Table 5.

Embodiment 3

[0040] Take 100g of alumina carrier Z, soak 80mL of an aqueous solution containing diethanolamine and polyether-modified silicone oil, wherein the content of diethanolamine is 2.0 g, and the content of polyether-modified silicone oil is 16 g, impregnate it on the carrier Z, and keep it healthy for 8 hours. After drying at 85° C. for 4 hours, and calcining at 300° C. for 2 hours, the modified carrier Z3 was obtained.

[0041] Impregnate Z3 with equal volumes of impregnation solution containing Mo, Ni, P and trimethylolethane, the molar ratio of trimethylolethane to Mo content of the final catalyst is 0.1:1, dry at 140°C for 3h, and calcined at 400°C 2h, the catalyst finally obtained is recorded as C-3. Catalyst properties are shown in Table 2.

[0042] Catalyst activity evaluation conditions are the same as in Example 1, the properties of the feed oil are shown in Table 4, and the activity evaluation results are shown in Table 5.

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Abstract

The invention discloses a hydrotreating catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: (1) introducing modifiedsilicone oil into an alumina carrier, drying and roasting to obtain a modified alumina carrier; and (2) dipping the modified alumina carrier prepared in the step (1) in an active metal component dipping solution containing a trihydroxymethyl compound, and drying and roasting after dipping to obtain the final hydrotreating catalyst. The catalyst not only has high stability of a class I active center catalyst, but also has high activity of a class II active center catalyst.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst and its preparation method and application, in particular to a catalyst suitable for heavy distillate oil hydrotreatment and its preparation method and application. Background technique [0002] The content of impurities such as nitrogen, sulfur, oxygen and metals in crude oil is constantly increasing, and the degree of crude oil is becoming heavier. It has become a fact before people. The existence of these impurities not only poisons the catalyst in the subsequent treatment process, but also emits A large amount of harmful gases such as sulfur oxides and nitrogen oxides are released, endangering human health and environmental protection. The use of catalysts with high activity and good stability can not only ease the process conditions, but also reduce hydrogen consumption and achieve energy saving and consumption reduction. [0003] The hydrotreating process is to load metal oxides contain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/19B01J35/10B01J37/02C10G45/08
CPCB01J27/19B01J23/002B01J37/0207C10G45/08B01J2523/00C10G2300/202B01J35/615B01J35/635B01J2523/31B01J2523/41B01J2523/68B01J2523/847
Inventor 唐兆吉樊鸿飞王继锋杜艳泽
Owner CHINA PETROLEUM & CHEM CORP
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