Method for modifying gasoline

A low-quality gasoline and gasoline technology, applied in the petroleum industry, reforming naphtha, catalytic reforming of naphtha, etc., can solve the problems of gasoline difficulties and achieve the effect of increasing the octane number

Inactive Publication Date: 2009-08-19
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the disadvantage that it is relatively difficult to process gasoline with a benzene content of 1-2% by volume in the prior art, and proposes a new method for upgrading gasoline

Method used

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  • Method for modifying gasoline
  • Method for modifying gasoline
  • Method for modifying gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The test is carried out on the fluidized bed test device shown in the figure, the catalyst used in the test is a ZSM-5 molecular sieve catalyst, and the ZSM-5 molecular sieve content is 30% by weight. See Table 1 for feed properties of inferior gasoline, Table 2 for dry gas feed composition, Table 3 for reaction conditions, and Table 4 for properties of modified gasoline (gasoline with reduced benzene content in inferior gasoline).

Embodiment 2

[0025] According to Example 1, the difference is that the reaction temperature is 260° C., the reaction conditions are listed in Table 3, and the properties of the modified gasoline are listed in Table 4.

Embodiment 3

[0027] According to Example 1, the difference is that the reaction temperature is 280° C., the reaction conditions are listed in Table 3, and the properties of the modified gasoline are listed in Table 4.

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PUM

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Abstract

The invention discloses a method for modifying gasoline to solve the defect that gasoline with the benzene content of 1% to 2% by volume is difficultly treated in the prior art. The method is as follows: poor gasoline and dry gas enter a fluidized bed reactor respectively or after being mixed, and are in contact reaction with a catalyst to obtain clean gasoline; the reaction temperature is 200 to 400 DEG C, the reaction pressure is 0.2 to 2 MPa, the poor gasoline weight hourly space velocity is 0.5 to 4.0 h-1, the ethylene weight hourly space velocity in dry gas is 0.03 to 0.5 h-1, and the used catalyst is an catalyst with the active constituent of ZSM-5 or Y type molecular sieve. The application of the method in the invention can efficiently reduce the benzene content in gasoline and simultaneously efficiently uses refinery dry to be converted into valuable product.

Description

technical field [0001] The invention belongs to the field of refining inferior oil products, in particular to a method for upgrading inferior gasoline. Background technique [0002] With the rapid development of the global economy, environmental protection issues have become the focus of increasing attention, and the environmental pollution caused by vehicle exhaust emissions has also attracted more and more attention from the world. Improving the quality of refined oil products and reducing environmental pollution is a top priority. At present, many developed countries focus on environmental protection considerations and set extremely strict quality standards for finished gasoline. For example, Euro IV gasoline emission standards require that the olefin content of gasoline is less than 18% by volume, the sulfur content is less than 0.005% by weight, and the benzene content is not more than 1% by volume. %. Due to the large number of blending components of foreign finished ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G35/04C10G35/095C10G35/14
Inventor 闫鸿飞孟凡东陈曼桥王龙延王文柯张亚西武立宪
Owner CHINA PETROCHEMICAL CORP
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