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Fraction oil oxidation desulfurizing catalyst and its preparation

A technology of oxidative desulfurization and catalyst, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc. It can solve the problems of low processing efficiency, short life, poor strength, etc. Achieve the effect of overcoming waste lye, increasing octane number, and making up for the large loss of octane number

Inactive Publication Date: 2003-11-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN1048543 discloses a catalyst and method for oxidative desulfurization of sulfur-containing hydrocarbon fractions of mercaptans that are difficult to oxidize. The catalyst is a metal chelate dispersed on a large-surface adsorptive carrier, usually an active Metal phthalocyanine on carbon, its method is in the presence of ammonium hydroxide and a kind of quaternary ammonium salt and oxidizing agent, sulfur-containing hydrocarbon cut is contacted with catalyzer, although no waste caustic is produced in this technical process, but due to the adsorption performance of activated carbon and The strength is poor, so there are problems such as low processing efficiency, poor effect, poor strength and short life when using it as a carrier

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This example illustrates the preparation of the catalyst carrier provided

[0031] The silica-alumina carrier is prepared by a continuous gel-forming method. During the preparation process, the ratio of raw materials can be adjusted to obtain supports with different silica / alumina (molecular ratios). The physical and chemical properties of the selected silica-alumina pellet carrier Z1 (molecular ratio: 25) are shown in Table 1.

Embodiment 2

[0033] This example illustrates the preparation of the catalyst carrier provided

[0034] Weigh 500 grams of titania-alumina powder (the titania / alumina molecular ratio is 8, produced by Nanjing Nanhua Company Catalyst Factory), add a small amount of extrusion aid and a small amount of water, fully knead evenly, and extrude into strips, 120 ℃ drying for 4 hours, 550 ℃ calcination for 4 hours, the obtained strip-shaped carrier was cut into 3-8 mm, and carrier Z2 was obtained. The physical and chemical properties of carrier Z2 are shown in Table 1.

Embodiment 3

[0036] This example illustrates the preparation of the catalyst carrier provided

[0037]Weigh 1000 grams of aluminum hydroxide powder (content 70% (m / m), pseudo-boehmite solder 85% (m / m), produced by Shandong Aluminum Factory), add a small amount of extrusion aid and a small amount of water, fully knead evenly , extruded into strips, dried at 120°C for 4 hours, calcined at 600°C for 4 hours, and cut the strip-shaped carrier into 3-8 mm to obtain γ-alumina carrier Z3. The physical and chemical properties of carrier Z3 are shown in Table 1.

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PUM

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Abstract

The fraction oil oxidizing and desulfurizing contains VIB, and VIII, IVB or VB metal oxide loaded onto porous acid carrier, and has VIB metal content 10-30 wt%, and VIII, IVB or VB metal content 1-8 wt%. The preparation process of the catalytic includes preformation of the transitional acid carrier, once soaking the carrier in the solution of the said metals, drying and roasting. The catalyst is used for the oxidation and desulfurization of sulfur containing hydrocarbon fraction oil in the presence of oxidant and alcohol, and is especially suitable for the oxidation and desulfurization process of light oil products.

Description

1. Technical field: [0001] The invention relates to a distillate oil oxidation desulfurization catalyst and a preparation method thereof. More specifically, it relates to a catalyst capable of effectively oxidizing organic sulfur present in sulfur-containing hydrocarbon distillates in the presence of oxidants and alcohols and a preparation method thereof. 2. Background technology: [0002] With the improvement of people's awareness of environmental protection, the problem of vehicle exhaust pollution has been paid more and more attention. Europe, the United States, Japan and China have successively proposed new standards for various hydrocarbon distillate oils, which have strict regulations and restrictions on sulfur content, benzene content, aromatics content, olefins content and oxygen content. [0003] As we all know, the usual method to reduce the sulfur content, olefin content and nitrogen content of various hydrocarbon distillates is to use hydrogenation saturation te...

Claims

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Application Information

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IPC IPC(8): B01J23/24B01J23/74B01J27/198B01J37/02C10G27/00
Inventor 宋丽芝吕志辉王海波陈明艾抚宾王顺农侯学伟
Owner CHINA PETROLEUM & CHEM CORP
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