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Method for reducing sulfur content of catalytic cracking product

A technology of catalytic cracking and cracking products, which is applied in the cracking field of hydrocarbon oil, can solve the problems of low desulfurization ability and heavy oil conversion ability, reduce the sulfur content of catalytic cracking gasoline, etc., and achieve the effect of high desulfurization ability and high heavy oil cracking ability

Inactive Publication Date: 2006-06-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to overcome the shortcomings of the prior art that the desulfurization ability and heavy oil conversion ability are not high, and provide a new method for reducing the sulfur content of catalytic cracking products with higher desulfurization ability and heavy oil conversion ability, especially to reduce catalytic cracking Gasoline Sulfur Content Method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] In the preparation method of the vanadium-containing cracking product sulfur-reducing catalyst, the method of introducing the vanadium component on the heat-resistant inorganic oxide carrier can adopt various existing methods, such as impregnating the vanadium-containing compound with an aqueous solution. The method of thermal inorganic oxide support and / or its precursor; or the method of mixing the aqueous solution of vanadium-containing compound with the heat-resistant inorganic oxide support and / or its precursor, grinding or not grinding; or the method of precipitation , a method of depositing vanadium in an aqueous solution of a vanadium compound onto an inorganic oxide carrier and / or its precursor; or a method of mixing an aqueous solution of a vanadium-containing compound with a heat-resistant inorganic oxide carrier and / or its precursor, and then making a sol .

[0027] The method of introducing the alkaline earth metal component on the refractory inorganic oxide...

example 1

[0038] This example illustrates the vanadium-containing cracking product sulfur-reducing catalyst and its preparation method of the present invention.

[0039] With 5 kilograms of pseudo-boehmite (solid content is 61% by weight, produced by Shandong Aluminum Factory), 1.1 kilograms of ammonium metavanadate (NH 4 VO 3 , chemically pure, produced by Beijing Chemical Plant), 1.39 kg of anhydrous magnesium nitrate (Mg(NO 3 ) 2 , chemically pure, produced by Beijing Chemical Plant) and deionized water are mixed evenly to obtain a slurry with a solid content of 15% by weight, and 0.549 kg of hydrochloric acid aqueous solution with a concentration of 31% by volume is added under stirring, and the stirring is continued until a uniform sol is formed. , the obtained sol was spray-dried at a temperature of 280° C., and calcined at 800° C. for 1 hour to obtain the vanadium-containing cracking product sulfur-reducing catalyst C1 microspheres of the present invention with an average parti...

example 2

[0041] This example illustrates the vanadium-containing cracking product sulfur-reducing catalyst and its preparation method of the present invention.

[0042]5 kilograms of pseudo-boehmite (specification is the same as example 1) and deionized water are mixed and beaten to obtain a slurry with a solid content of 15% by weight, and 0.549 kilograms are added under stirring, and the concentration is 31% by volume of hydrochloric acid aqueous solution, and the stirring is continued. Until a uniform sol was formed, the obtained sol was spray-dried at a temperature of 280° C. to obtain microspheres with an average particle diameter of 70 μm. With 1.1 liters containing 1.1 kilograms of ammonium metavanadate, the mixed aqueous solution of ammonium metavanadate and magnesium nitrate of 1.39 kilograms of anhydrous magnesium nitrate is mixed with the microsphere obtained above, and oven dry at 150 ℃ of temperature. Calcined at 800° C. for 1 hour to obtain the vanadium-containing crackin...

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Abstract

The method of lower sulfur content in catalytically cracked product includes the contact of sulfur containing petroleum material with one kind of catalyst comprising vanadium containing sulfur-reducing catalyst and catalytically cracking catalyst under the condition of cracking. The vanadium containing sulfur-reducing catalyst for cracking product contains vanadium component, one kind of heat resistant inorganic oxide carrier and one alkali earth metal component, with the weight ratio between vanadium and alkali earth metal being 0.025-10. Compared with available technology, the method of the present invention has even higher desulfurizing capacity and heavy oil cracking capacity.

Description

technical field [0001] The present invention relates to a method for cracking hydrocarbon oil, more specifically, relates to a method for reducing the sulfur content of catalytic cracking products. Background technique [0002] In recent years, due to environmental protection considerations, the requirements for fuel oil standards have been continuously increased worldwide. Take China as an example. In 1999, the State Bureau of Quality Supervision formulated the "Control Standard for Hazardous Substances in Motor Gasoline". According to the requirements of this standard, the sulfur content of finished gasoline should be less than 800ppm. In fact, more than 90% of the sulfur in finished gasoline comes from FCC gasoline. On the other hand, Middle East crude oil with higher sulfur content accounts for an increasing proportion of crude oil in Chinese refineries. Therefore, reducing the sulfur in FCC gasoline Content is critical to the production of clean...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/04B01J23/22B01J23/02C10G11/02
Inventor 陈辉毛安国朱玉霞张瑞弛罗一斌王鹏田辉平宗保宁龙军
Owner CHINA PETROLEUM & CHEM CORP