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Catalytic conversion method for preparing high-octane number gasoline

A high-octane gasoline and catalytic conversion method technology, applied in catalytic cracking, cracking, petroleum industry and other directions, can solve the problems of high gasoline yield and low coke yield, etc., and achieve the effect of increasing gasoline octane number

Active Publication Date: 2009-02-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Distillate oil rich in single-ring aromatics has a higher conversion rate when catalyzed, and the gasoline yield is higher, but the coke yield is lower

Method used

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  • Catalytic conversion method for preparing high-octane number gasoline

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] This example illustrates the situation of producing high-octane gasoline in a small-scale continuous fluidized bed reactor by using the selected boiling range distillate of the present invention.

[0033] The distillate B listed in Table 1 with an initial boiling point greater than 165.6°C was used as the raw material for catalytic cracking, and catalyst D was used to carry out the experiment of catalytic conversion of distillate oil to produce high octane number in a small fluidized bed reaction operated by continuous reaction regeneration . Distillate B is mixed with preheated high-temperature steam and then enters the fluidized bed reactor. The reaction temperature is 500°C, the top pressure of the reaction is 0.2MPa, and the weight hourly space velocity is 9h. -1 , the ratio of agent to oil is 13, and the weight ratio of water vapor and raw material is 0.11, and the catalyst is contacted to carry out catalytic conversion to produce high-octane gasoline. The reactio...

Embodiment 2

[0037] This example illustrates the production of high-octane gasoline by using vacuum gas oil (VGO) to recuperate fractions with a distillation range of 180° C. to 245° C. on a medium-sized riser device.

[0038] Using the fraction A listed in Table 1 as the raw material, and using the catalyst D in Table 2, the experiment of distillate oil back refining to produce high-octane gasoline was carried out on a medium-sized riser catalytic cracking unit operated by continuous reaction regeneration. As shown in the figure, the pre-lift steam enters from the bottom of the riser reactor 2 through the pipeline 1, and the regenerated catalyst from the pipeline 11 accelerates upward along the riser under the lifting effect of the pre-lift steam, and the preheated and atomized raw material A enters the riser 2 through the pipeline 14, and is mixed with the existing flow of the riser reactor. The refractory fraction with a distillation range of 180°C-245°C is atomized by steam and injected...

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Abstract

The invention provides a catalysis conversion method used for producing high octane gasoline; the distillate raw material with the distilling range of 160-260 DEG C contacts normal catalytic cracking catalyst, so as to carry out the cracking reaction inside a fluidized bed reactor under the conditions of 400-750 DEG C of temperature, 0.1-600h<-1> of weight hourly space velocity, 0.10-1.0MPa of pressure, 1-120 of weight ratio of catalyst to raw material and 0.05-1.0 of weight ratio of water vapour to raw material; a spent catalyst and reaction oil gas are separated, and the spent catalyst is returned to the reactor after regeneration; the reaction oil gas is separated so as to gain the object outcome: high octane gasoline. The method improves the octane number and yields of the gasoline and generates the byproducts: small molecule alkene such as ethane and propylene.

Description

technical field [0001] The invention belongs to the catalytic conversion method of hydrocarbon oil in the absence of hydrogen, more specifically, it is a catalytic conversion method for increasing the production of high-octane gasoline. Background technique [0002] More than 80% of my country's commercial gasoline comes from fluid catalytic cracking (FCC) gasoline. The gasoline currently used in my country is mainly No. 93, but the octane number of FCC gasoline is relatively low, and it is generally lower than No. 93 without blending. At present, the global demand for gasoline is increasing year by year. The peak period of gasoline consumption in the second and third quarters of 2007 in the United States increased by nearly 1% compared with the same period in 2006, reaching 9.475 million barrels per day. With the development of China's economy, the number of gasoline vehicles in China is also increasing year by year, so the demand for high-quality gasoline is increasing. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/18C10G11/05
Inventor 崔守业许友好刘宪龙杨轶男刘守军
Owner CHINA PETROLEUM & CHEM CORP
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