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Hydrodesulfurization catalyst, preparation method and application thereof

A hydrodesulfurization and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of low catalyst activity and few active components, achieve high hydrodesulfurization performance, improve Active, interaction-reducing effects

Active Publication Date: 2015-03-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Among the above-mentioned supported catalysts, the activity of the catalyst is low due to the low content of the active ingredient

Method used

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  • Hydrodesulfurization catalyst, preparation method and application thereof
  • Hydrodesulfurization catalyst, preparation method and application thereof
  • Hydrodesulfurization catalyst, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of modified titania-alumina composite support:

[0038] The titania-alumina composite carrier was prepared according to the method in Example 1 of the published patent CN1184289C. Take the specific surface area as 160m 2 / g, 90g of clover-shaped alumina with a pore volume of 0.58ml / g and a most probable pore diameter of 130 angstroms, impregnated with 53ml of titanium sulfate in a 0.557g / ml dilute sulfuric acid solution, stirred for 15 minutes, and dried at 120°C for 8 hours Then, calcined at 900°C for 4 hours to obtain titanium oxide-alumina composite oxide A 1 , namely titania-alumina composite support. The resulting titanium oxide-alumina composite oxide A 1 The titanium oxide content is 10% by weight, and the specific surface area is 144m 2 / g, the pore volume is 0.56ml / g, and the most probable pore diameter is 125 angstroms.

[0039] Get 21.7g of cobalt nitrate hexahydrate and 12.4g of cerium nitrate hexahydrate to form a solution, add water to mak...

Embodiment 2

[0043] The steps are the same as in Example 1, the difference is that.

[0044] Get 21.7g of cobalt nitrate hexahydrate and 13.6g of lanthanum nitrate hexahydrate to form a solution, add water to prepare a 140mL mixed solution, add 100g of titanium oxide-alumina to the solution obtained by preparing cobalt nitrate hexahydrate and cerium nitrate hexahydrate Composite oxide A 1 , stirred for 20 minutes, dried at 120°C after draining the water, and then calcined at 600°C for 4 hours to obtain the modified titanium oxide-alumina composite oxide A 3 , namely the modified titania-alumina composite support A 3 .

[0045] Prepare 20ml of ammonia water impregnation solution containing 2.1g of nickel hypophosphite, the pH of the impregnation solution is 9.0, at room temperature, take 10g of modified titanium oxide-alumina composite carrier A 3 , impregnated with impregnation solution, dried at 120°C for 24 hours, then calcined at 550°C for 4 hours, taken out and cooled to room temper...

Embodiment 3

[0048] The steps are the same as in Example 1, except that the impregnation solution contains 2.1 g of nickel hypophosphite and 2.3 g of ammonium molybdate. Catalyst data are shown in Table 1.

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Abstract

The invention provides a hydrodesulfurization catalyst, which contains a modified titanium oxide-alumina carrier and nickel phosphide loaded on the carrier, the modified titanium oxide-alumina carrier comprises a lanthanide metal component and a VIII metal component, and the catalyst has low temperature hydrogenation activity and good stability for being used in the hydrodesulfurization technology for cracking gasoline C5-C10 distillate oil. The invention also provides a preparation method of the catalyst and the hydrodesulfurization method for the C5-C10 distillate oil.

Description

technical field [0001] The invention relates to a hydrodesulfurization catalyst, in particular to a hydrodesulfurization catalyst obtained by loading nickel phosphide on a modified composite carrier. The present invention also relates to the preparation method and application of the above-mentioned catalyst. Background technique [0002] Petroleum fractions contain impurities such as sulfur, nitrogen, oxygen, and metals. The existence of these impurities will not only affect the properties of the oil, but also release harmful gases that pollute the environment during use and reduce the activity and life of the catalyst. In the hydroprocessing process of petroleum hydrocarbons as raw materials, the raw materials are reacted with hydrogen under high temperature and high pressure conditions to remove harmful substances in the raw materials, such as organic sulfides, organic nitrogen compounds, and organometallic compounds. [0003] At present, catalytic hydrodesulfurization (H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185B01J27/19C10G45/06C10G45/08
Inventor 杜周柴忠义纪玉国任玉梅张富春季静
Owner CHINA PETROLEUM & CHEM CORP
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