Metal aromatic hydrosaturation catalyst

A catalyst and metal-type technology, which is applied in the field of metal-type aromatic hydrocarbon hydrogenation saturated catalysts, can solve the problems affecting the service performance of porous silica-alumina, the catalyst's poor sulfur resistance and aromatic hydrocarbon saturation performance, and low mechanical strength, and achieves good performance. Preparation operability, excellent catalyst performance, and the effect of improving mechanical strength

Inactive Publication Date: 2004-07-07
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

[0008] Therefore, in order to make the content of B acid in the carrier porous silica-alumina high enough to benefit the sulfur resistance performance, the introduction of silica must be increased; but too high silica content will directly affect the porous silica-alumina. Aluminum performance
For example, when the silicon oxide content is too high > 40% by weight, the operability of the material to be continuously extruded is poor, and the mechanical strength of the extruded product is low; when the silicon oxide content is too low < 40% by weight, the carrier B acid content is low, thus The catalyst has poor resistance to sulfur and aromatic hydrocarbon saturation

Method used

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Examples

Experimental program
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Effect test

example 1

[0044] 800 grams of NaY type molecular sieve (SiO 2 / Al 2 o 3 =4.8, crystallinity is defined as 100%, Changling Oil Refinery product) is placed in 4000 milliliters, concentration is in the ammonium chloride (Beijing Chemical Plant product, analytical pure) aqueous solution of 1.0 mole, exchange 1 hour under stirring at 90 ℃, Filter, wash with deionized water until no chlorine ions are detected, dry at 120°C, and bake at 550°C for 4 hours. Repeat the above process twice to obtain a Y-type molecular sieve A with a sodium content (calculated as sodium oxide) <0.35% by weight (determined by flame atomic absorption spectrometry), and the crystallinity of the sample is 76% as measured by X-ray diffraction.

[0045] Take 200 grams of the ion-exchanged sample and place it in 1000 milliliters of ammonium fluoride (product of Beijing Chemical Plant, analytically pure) aqueous solution with a concentration of 0.2 moles, filter at room temperature after stirring for 1 hour, dry at 120 °...

example 2

[0050] Get the disordered sample B obtained by 8 grams of Example 1 and 111 grams of gibbsite, 149 grams of Siral-40 powder (produced by Condea company) and fully mix, extrude with the trilobal orifice plate of φ 1.8, the gained The strips were dried at 120°C and calcined at 500°C for 6 hours to obtain porous silica-alumina, sample number ZT-2.

[0051] The X-ray diffraction spectrum of sample ZT-2 is shown in image 3 . The silica content, B acid content, silica mole fraction, k value and crushing strength are shown in Table 2.

example 3

[0053] Get Example 1 and place 200 grams of Y-type molecular sieve samples after ion exchange in 1000 milliliters of aqueous solutions containing 12 grams of aluminum nitrate (product of Beijing Chemical Plant, analytically pure), filter after stirring at room temperature for 1 hour, dry at 120 ° C, and sample Place in a tube furnace, feed deionized water at an amount of 100 g / h, raise the temperature to 600° C., and keep the temperature constant for 4 hours. The crystallinity of the sample was measured to be 52% by X-ray diffraction method.

[0054] The sample was placed in 1000 ml of ammonium fluoride aqueous solution with a concentration of 0.1 mole, stirred at room temperature for 1 hour, filtered, dried at 120°C, and calcined at 550°C for 4 hours to obtain Y-type molecular sieve disordered sample C.

[0055] The X-ray diffraction spectrum of sample C is shown in Figure 1, and the composition is shown in Table 1.

[0056] Weigh 100 grams of SB powder (produced by Condea, ...

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Abstract

A metal-type catalyst for hydrosaturating arylhydrocarbon is composed of the carrier containing porous silicon oxide-aluminium oxide and the hydrogenating active components. Said porous silicon oxide-aluminium oxide has the crystal type chosen from gamma, etc, theta, delta and X ones of aluminium oxide. Its advantages are easy preparing, high resistance to sulfur, and high hydrogenating activity.

Description

technical field [0001] The invention relates to a metal-type arene hydrogenation saturation catalyst, more specifically to a metal-type arene hydrogenation saturation catalyst with porous silicon oxide-alumina as a carrier. Background technique [0002] The use of metal catalysts to carry out hydrogenation saturation of aromatics at a lower reaction temperature is an effective means to achieve deep dearomatization such as clean fuel oil, white oil and high-grade lubricating base oil. [0003] Because metal-type aromatic hydrocarbon hydrogenation saturation catalysts are sensitive to sulfur, in addition to using sulfurized hydrogenation catalysts to refine and desulfurize raw materials in the prior art, more and more attention has been paid to the development of sulfur-tolerant metal-type catalysts, mainly from hydrogenation Two aspects of active ingredient and carrier type were studied. [0004] In Ind.Eng.Chem.Res.1995, 34, 4284~4289 and Ind.Eng.Chem.Res.1995, 34, 4277~428...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/48
Inventor 董维正王奎孟宪波康小洪刘广元聂红石亚华
Owner CHINA PETROLEUM & CHEM CORP
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