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Adsorbent for adsorptive desulfurization of fuel oil

An adsorption desulfurization and adsorbent technology, applied in the direction of refined hydrocarbon oil, petroleum industry, silicate, etc., can solve the problems of gasoline octane number loss and gasoline octane number loss, etc., to improve low-temperature flow performance, increase octane The effect of alkane number and depressing freezing point

Active Publication Date: 2012-05-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above existing desulfurization adsorbents can reduce the sulfur content in cracked gasoline, they cannot increase the octane number of gasoline, and may cause the loss of gasoline octane number;

Method used

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  • Adsorbent for adsorptive desulfurization of fuel oil
  • Adsorbent for adsorptive desulfurization of fuel oil

Examples

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preparation example Construction

[0026] A preferred preparation method of the sorbent composition provided by the invention comprises the following steps:

[0027] (a) Zinc oxide source, oxide carrier source and AEL structure aluminophosphate molecular sieve are mixed;

[0028] (b) granulating the mixture obtained in step (a) to form granules;

[0029] (c) roasting or drying the particles obtained in step (b);

[0030] (d) impregnating the calcined particles obtained in step (c) with a promoter metal compound;

[0031] (e) drying and calcining the impregnated granules obtained in step (d); then

[0032] (f) reducing the composition obtained in step (e).

[0033] According to the preferred preparation method, the obtained adsorbent composition not only has a good desulfurization effect, but also has a better effect of increasing the octane number and lowering the freezing point of diesel oil. in:

[0034] The zinc oxide source described in step (a) may be present in the form of zinc oxide or in the form o...

Embodiment 1

[0046] 7.5 kg of kaolin (SiO 2 Content 45.6 wt%, Al 2 o 3 Content 38.5% by weight, product of Suzhou China Kaolin Company), 20.2 kg of zinc oxide (ZnO content 99.8% by weight, product of Zibo Haishun Zinc Industry Co., Ltd.), 3.5 kg of aluminum sulfate octadecahydrate (content 99.0% by weight, chemical reagent of Sinopharm Group Co., Ltd.) and 3.4 kilograms of SAPO-11 (Si: Al: P molar ratio = 1: 9: 10) molecular sieves were put into a grinder and ground for 15 minutes to form a mixture, and the mixture was mixed with deionized water to obtain a solid content of 30% by weight slurry, adding 15.58 kg of acetic acid with a concentration of 3% by weight, stirring for 1.5 hours, spray-dried and shaped, dried at 150°C for 4 hours, and then roasted at 650°C for 2 hours to obtain a particle size of 40-200 μm Carrier particles, denoted as carrier A. 15.3 kilograms of cobalt nitrate hexahydrate (content 99.0% by weight, Sinopharm Chemical Reagent Co., Ltd.) were dissolved in 4.6 kilo...

Embodiment 2

[0048] Put 8.8 kilograms of zinc oxide (ZnO content 99.8% by weight, product of Zibo Haishun Zinc Co., Ltd.) and 5.5 kilograms of CoAPO-11 (Co: Al: P molar ratio = 1: 9: 10) molecular sieve into the grinder and grind for 15 Minutes to form a mixture, this mixture with 42.9 kg of acidic silica sol (SiO 2 Content 25.5% by weight, Qingdao micro-nano silica gel Technology Co., Ltd., pH value 2.1) and deionized water are mixed for beating to obtain a slurry with a solid content of 35% by weight, then add deionized water therein, and stir for 2 hours to obtain a solid The slurry with a content of 30% by weight was then spray-dried to shape, dried at 150°C for 4 hours, and then calcined at 650°C for 2 hours to obtain carrier particles with a particle size of 40-200 μm, which were designated as carrier B. 15.7 kilograms of nickel nitrate hexahydrate (content 98.0% by weight, Sinopharm Chemical Reagent Co., Ltd.) were dissolved in 4.6 kilograms of hot (85° C.) deionized water to obtain...

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Abstract

The invention relates to adsorbent for adsorptive desulfurization of fuel oil. An adsorbent composition contains a metal promoting agent, zinc oxide, an AEL-type structured phosphoaluminate molecular sieve and an oxide carrier. At least a part of promoting agent metal exists in a reduction state. A method for preparing the adsorbent composition comprises the steps of forming, roasting and reducing a mixture containing a zinc compound, a promoting agent metal compound, an oxide carrier component and the AEL-type structured phosphoaluminate molecular sieve. The adsorbent composition is applied to adsorptive desulfurization of hydrocarbon oil and has a better desulfurization effect; furthermore, the octane value of cracked gasoline can be increased; and the low-temperature flowing property of diesel can be improved.

Description

technical field [0001] The invention relates to an adsorbent composition used for adsorption and desulfurization of hydrocarbon oil and its preparation and application method. Background technique [0002] Compared with straight-run gasoline and hydrogenated gasoline, the content of sulfur, olefins and aromatics in FCC gasoline is higher, the stability is poor, it is easy to produce gum, has foul smell, corrosion and poor color, although its octane number can reach 90 or so, but it cannot be directly used as qualified motor gasoline. At the same time, with the continuous improvement of environmental protection requirements, people's environmental awareness is also constantly changing. How to reduce the environmental pollution caused by the increasing fuel consumption has become an important issue facing the sustainable development of the oil refining industry and the automobile industry. The production of ultra-low sulfur and zero-emission fuels is the general trend of the ...

Claims

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Application Information

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IPC IPC(8): B01J20/16B01J20/32C10G25/00
Inventor 许本静田辉平朱玉霞陆友保
Owner CHINA PETROLEUM & CHEM CORP
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