Method for cracking hydrocarbon oil containing surphur

A technology for sulfur-containing hydrocarbon oil and hydrocarbon oil, which is applied in the field of hydrocarbon oil cracking to achieve the effects of increasing the number of active centers, high SOx emission, and reducing SOx emission

Active Publication Date: 2007-06-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the ability to reduce the sulfur content in FCC regeneration flue gas using the cracking method disclosed in the prior art for sulfur transfer catalysts also needs to be improved

Method used

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  • Method for cracking hydrocarbon oil containing surphur
  • Method for cracking hydrocarbon oil containing surphur

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0034] In the preparation method of the sulfur transfer catalyst, the concentration of the solution of the additional metal component compound is not particularly limited, as long as a sufficient amount of the additional metal component can be introduced into the catalyst after one or more impregnations. When the concentration of the solution of the additional metal component compound is high, a sufficient amount of additional metal component can be introduced by one impregnation, and when the concentration of the solution of the additional metal component compound is low, multiple impregnations can be performed, and each impregnation Finally, liquid-solid separation can be carried out or not, and it can be dried or not dried, roasted or not roasted. The liquid-solid separation method adopts any liquid-solid separation method, such as a filtration method, a cyclone separation method, and the like.

[0035] Preferably, the volume of the solution containing the additional metal ...

Embodiment 1

[0049] This example illustrates alkaline earth metal, aluminum containing spinel compositions and methods for their preparation.

[0050] In a stirred tank, add 17.1 kg of decationized water, add 5.625 kg of pseudoboehmite under stirring, then add a hydrochloric acid aqueous solution with a concentration of 18% by weight, stir evenly, and use the amount of hydrochloric acid aqueous solution to make the pH value of the slurry 2.0 . Continue to add 5 L V 2 o 5 - Oxalic acid complex solution, stir well. Continue to add 2 kg of light magnesia and 4.5 kg of decationized water, beating and stirring evenly to obtain a slurry with a solid content of 11.5% by weight. The resulting slurry was spray-dried at an inlet temperature of 500°C and an exhaust gas temperature of 180°C, and then calcined at 650°C for 2 hours to obtain magnesium-aluminum spinel composite microspheres ZT with an average particle diameter of 60 microns 1 . ZT 1 The composition, specific surface area and pore v...

Embodiment 2

[0053] This example illustrates alkaline earth metal, aluminum containing spinel compositions and methods for their preparation.

[0054] In a stirred tank, add 20.2 kg of decationized water, add 7.63 kg of pseudoboehmite and 0.655 liter of chlorinated mixed rare earth solution under stirring, then add a hydrochloric acid aqueous solution with a concentration of 18% by weight, and stir evenly. The pH of the slurry was brought to 1.65. Continue adding 1 liter of V as described in Example 1 2 o 5 - Stir the oxalic acid complex solution evenly, continue to add 1.4 kg of light magnesium oxide and 3.18 kg of decationized water to make a slurry, stir evenly, and obtain a slurry with a solid content of 11.5% by weight. The resulting slurry was spray-dried at an inlet temperature of 500°C and an exhaust gas temperature of 180°C, and then calcined at 650°C for 2 hours to obtain magnesium-aluminum spinel composite microspheres ZT with an average particle diameter of 60 microns 2 . Z...

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Abstract

A cracking method for alkymer containing S includes contacting the alkymer containing S with a catalyst mixture with a cracking catalyst and a sulfurtransfer catalyst to recover the cracked products, among which, the sulfurtransfer catalyst contains spinel composition with alkali earth, Al and additional metal oxide and the spinel contains alkal: earth, Al, rare earth metal and or not except Ce, said additional metal component oxide is CeO and ZnO, the content of the spinel is 50-90weight%, the content of CeO AND ZnO is 10-50weight% with a catalyst as the primary standard. The mean particle diameter of CeO is less than 130A measured by XRD method and that of ZnO is less than 300A.

Description

technical field [0001] The present invention relates to a cracking method of hydrocarbon oil, more specifically to a cracking method of sulfur-containing hydrocarbon oil. Background technique [0002] Fluid Catalytic Cracking (FCC) is the main method to obtain light oil products with high use value such as gasoline and diesel oil from heavy feedstock oil. The FCC unit usually consists of a riser reactor and a regenerator. During operation, cracking catalyst microspheres with cracking activity and hydrocarbon oil feedstock undergo high-temperature cracking reactions in the riser reactor to generate light oil and gas products. , At the same time, the cracking catalyst also loses its cracking activity due to coking. The deactivated cracking catalyst needs to enter the regenerator, and be burned at high temperature in the presence of air to regenerate the catalyst. If the hydrocarbon oil is a sulfur-containing hydrocarbon oil, a large amount of sulfur compounds will be contain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/04
Inventor 陈蓓艳蒋文斌田辉平宋海涛沈宁元范玉华
Owner CHINA PETROLEUM & CHEM CORP
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