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Method for cracking hydrocarbon oil containing surphur

A technology of sulfur-containing hydrocarbon oil and hydrocarbon oil, which is applied in the cracking field of hydrocarbon oil to achieve the effects of reducing SOx emissions, reducing sulfur content, and high SOx emissions

Active Publication Date: 2006-03-08
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
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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 the additional metal component can be introduced by one impregnation, and when the concentration of the additional metal component compound solution is low, multiple impregnations can be performed, each immersion Later, liquid-solid separation or no liquid-solid separation can be carried out, 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 each immersion of the solution contain...

Embodiment 1

[0049] This example illustrates a spinel composition containing alkaline earth metals and aluminum and its preparation method.

[0050] In a stirred tank, add 17.1 kg of decationized water, add 5.625 kg of pseudo-boehmite under stirring, and then add an aqueous hydrochloric acid solution with a concentration of 18% by weight, and stir evenly. The amount of the aqueous hydrochloric acid solution makes the pH of the slurry 2.0 . Continue to add 5 liters of V 2 O 5 -Oxalic acid complex solution, stir evenly. Continue to add 2 kg of light magnesium oxide and 4.5 kg of decationized water, beating and stirring uniformly to obtain a slurry with a solid content of 11.5% by weight. The obtained 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-containing spinel composition microspheres ZT with an average particle diameter of 60 microns 1 . ZT 1 The composition, specific surfac...

Embodiment 2

[0053] This example illustrates a spinel composition containing alkaline earth metals and aluminum and its preparation method.

[0054] In a stirred tank, add 20.2 kg of decationized water, add 7.63 kg of pseudo-boehmite and 0.655 liters of mixed rare earth chloride solution under stirring, and then add an aqueous solution of hydrochloric acid with a concentration of 18% by weight, stir well, and the amount of aqueous hydrochloric acid The pH of the slurry was 1.65. Continue to add 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 to obtain a slurry with a solid content of 11.5% by weight. The obtained 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-containing spinel composition microspheres ZT with an average part...

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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 invention relates to a method for cracking hydrocarbon oil, and more specifically to a method for cracking sulfur-containing hydrocarbon oil. Background technique [0002] Fluidized Catalytic Cracking (FCC) is the main method to obtain high-use value light oils such as gasoline and diesel from heavy feedstock oil. The FCC device usually consists of a riser reactor and a regenerator. During operation, the cracking catalyst microspheres with cracking activity and the hydrocarbon oil feedstock undergo high-temperature cracking reactions in the riser reactor to produce 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 burn it 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 ...

Claims

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Application Information

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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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