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Hydrocarbon oil cracking method

A technology for hydrocarbon oil and cracking conditions, applied in the field of cracking of hydrocarbon oil, can solve the problems of inability to reduce SOx emissions, inability to reduce the sulfur content of FCC gasoline products, etc. Effect

Active Publication Date: 2006-03-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of this method is to produce isobutane and gasoline rich in isoparaffins, and cannot reduce SO in FCC regeneration flue gas x emissions, and cannot reduce sulfur content in FCC gasoline products

Method used

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Examples

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preparation example Construction

[0044] 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, while when the concentration of the solution of the additional metal component compound is low, multiple impregnations can be performed, each immersion After that, 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.

[0045] Preferably, the volume of each immersion of the so...

Embodiment 1

[0059] This example illustrates a spinel composition containing alkaline earth metals and aluminum and its preparation method.

[0060] 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

[0063] This example illustrates a spinel composition containing alkaline earth metals and aluminum and its preparation method.

[0064] 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 with sulphur includes that the alkymer passes through a reactor including two reacting regions and contacts with a catalyst for a first and second reaction, in which, said alkymer contains sulphur and said catalyst is a mixture containing cracking catalyst and S-transfer catalyst, which contains spinel composition with alkali earth and Al and oxide with additional metal component, said spinel composition contains alkali earth, Al, rare earth metal and V except Ce, said additional metal oxide is CeO AND ZnO, the weight percentage of the spinel is 50-90% and that of CeO and ZnO IS 10-15%, the mean particle diameter measured by xRD method is less than 130A and that of ZnO is less than 300A.

Description

Technical field [0001] The present invention relates to a method for cracking 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 a high temperature in the presence of an oxygen-containing atmosphere to regenerate the catalyst. If the hydrocarbon oil is a sulfur-containing hydrocarbon oil, a large amount of sulfur compounds will be contained in the coke on the catalyst su...

Claims

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Application Information

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IPC IPC(8): C10G51/02
Inventor 达志坚龙军何鸣元田辉平蒋文斌张万虹陈蓓艳唐立文宋海涛
Owner CHINA PETROLEUM & CHEM CORP
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