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A kind of production method of high-octane gasoline

A technology for high-octane gasoline and a production method, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrotreating technology, etc., can solve the problems of affecting conversion and high hydrogen consumption, and achieve the effects of improving yield and shortening reaction time.

Active Publication Date: 2021-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, not only the hydrogen consumption is high, but also the reaction of the hydrogenated cycle oil in the upstream zone will seriously affect the conversion of the downstream heavy oil

Method used

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  • A kind of production method of high-octane gasoline
  • A kind of production method of high-octane gasoline
  • A kind of production method of high-octane gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0041] In one embodiment, the first catalytic cracking catalyst enters the riser reactor from the conventional catalyst inlet of the riser reactor, and the second catalytic cracking catalyst is fed into the riser reactor from the supplementary inlet in the middle of the riser reactor to strengthen the hydrogenation light cycle Oil conversion.

[0042] According to the present invention, catalytic cracking catalysts are well known to those skilled in the art, for example, the regenerated catalyst may include 10-50% by weight of zeolite, 5-90% by weight of inorganic oxides and 0-70% by weight of clay, the The zeolite is at least one selected from Y, HY, USY and Beta zeolites containing or not containing rare earths, and those skilled in the art can also use other catalysts.

[0043] According to the present invention, hydroprocessing is well known to those skilled in the art, for example, the hydroprocessing catalyst may comprise an active metal component which is a Group VIB me...

Embodiment 1

[0052] This embodiment illustrates adopting the present invention figure 1 For the provided method, the specific process is as described in the foregoing specific embodiment. The main operating parameters of the catalytic cracking unit are shown in Table 3.

[0053] The light cycle oil enters the medium-sized hydrogenation reactor, and the test conditions of hydrogenation treatment are: hydrogen partial pressure 8.0 MPa, average bed reaction temperature 360 ​​° C, volume space velocity 0.5 hours -1 , hydrogen oil volume ratio 1100Nm 3 / m 3 .

[0054] Within the distance between hydrogenated light cycle oil and heavy feedstock entering the riser, the residence time of reaction oil and gas is 0.2 seconds. The reaction product distribution, hydrogen consumption and gasoline octane number are shown in Table 4.

Embodiment 2

[0056] Hydrogenated light cycle oil in embodiment 2 from figure 1 The position of the first nozzle enters in, and the heavy oil feedstock enters from the second nozzle, and the catalytic cracking device and catalytic cracking catalyst in embodiment 2 are exactly the same as embodiment 1. See Table 3 for the operating conditions of the catalytic cracking unit in Example 2. The reaction product distribution, hydrogen consumption and gasoline octane number are shown in Table 4.

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Abstract

The invention relates to a method for producing high-octane gasoline, which method comprises: injecting heavy feedstock into a riser reactor from a first nozzle with the first catalytic cracking catalyst from the bottom of the riser reactor and the first catalytic cracking catalyst from the riser reactor The second catalytic cracking catalyst in the middle of the reactor contacts and undergoes a catalytic cracking reaction to obtain a reaction product and a spent catalyst; separate the obtained reaction product to obtain at least catalytic cracking gasoline and catalytic cracking light cycle oil; send the catalytic cracking light cycle oil to into the hydrogenation reactor to contact with the hydrogenation catalyst and carry out the hydrogenation treatment to obtain the hydrogenated light cycle oil; send the hydrogenated light cycle oil into the riser reactor from the second nozzle to carry out the catalytic cracking reaction . The method of the invention feeds the hydrogenated light cycle oil and the heavy raw material from different positions, and can replenish the catalyst to produce the gasoline with high octane number to the greatest extent.

Description

technical field [0001] The invention relates to a method for producing high-octane gasoline. Background technique [0002] With the development of heavy crude oil and the rapid growth of market demand for light oil products, in my country, catalytic cracking technology, which is used to lighten heavy oil, has developed rapidly. However, a fact that must be faced is that the quality of catalytic cracking diesel oil (or light cycle oil) has always been relatively poor, with high density, high aromatic content, and low cetane number. Even through diesel hydro-upgrading technology, it is difficult to Meet increasingly stringent diesel specifications. How to solve the catalytic cracking light cycle oil is an increasingly serious problem. Another problem that exists at the same time is the long-term shortage of domestic finished gasoline, and catalytic cracking gasoline accounts for 80% of finished gasoline. Therefore, how to maximize the production of high-octane gasoline from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/00
Inventor 李泽坤龚剑洪唐津莲袁起民
Owner CHINA PETROLEUM & CHEM CORP