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A kind of mixing emulsification method and feeding method of catalytic feed oil

A feeding method and raw oil technology, applied in the direction of mixing methods, catalytic cracking, chemical instruments and methods, etc., can solve the problem of low gasification rate at the inlet of riser reactor, coking of nozzle of riser reactor, dry gas and coke production The problems such as the increase of oil rate can be solved, and the effect of shortening the gasification time, high degree of dispersion of oil droplets and short vaporization time can be achieved.

Active Publication Date: 2020-03-03
CHINA PETROLEUM & CHEM CORP +3
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In recent years, the proportion of heavy raw materials in catalytic cracking raw materials has been increasing year by year. Most of the catalytic cracking raw materials are residue oil and wax oil. During the reaction process, the atomization status and gasification degree of catalytic cracking raw The catalytic cracking reaction plays a very important role. If the atomization effect of the feed oil is poor, the gasification rate at the riser reactor inlet is low, and the gasification time is long, it is easy to cause the nozzle of the riser reactor to coke and affect the operating efficiency of the device. Moreover, when it contacts with hot catalyst particles, it has a great influence on the catalytic cracking reaction, which is an important reason for the increase of dry gas and coke yield.

Method used

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  • A kind of mixing emulsification method and feeding method of catalytic feed oil
  • A kind of mixing emulsification method and feeding method of catalytic feed oil
  • A kind of mixing emulsification method and feeding method of catalytic feed oil

Examples

Experimental program
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Embodiment approach

[0035] A specific embodiment, such as Figure 1-3 As shown, the step of the water-in-oil emulsification includes: sending the catalytic raw material oil into the distribution emulsification pipe 7 from the inlet at one end of the distribution emulsification pipe 7 and from the holes provided on the wall of the distribution emulsification pipe 7 8, after the emulsified water is mixed, the distribution emulsification pipe 7 is sent out from the outlet at the other end of the distribution emulsification pipe 7; wherein, the aperture of the channel 8 is 1-60000 nanometers, preferably 1-30000 nanometers, more preferably 1-10000 nanometers nanometer, more preferably 1-5000 nanometer.

[0036] In the present invention, since the raw material oil is dispersed into emulsified oil droplets with a particle size of micronano level by the emulsified water distributed in the emulsification pipe before the catalytic reactor nozzle is fed, and the particle size of the emulsified raw material ...

Embodiment

[0051] In this example, a catalytic cracking experiment was carried out in a certain refinery, the processing capacity of the adopted riser reactor was 600,000 tons / year, and the height of the riser reactor was 30 meters.

[0052] use as image 3 The mixed emulsification system shown performs mixed emulsification. The parameters of the distribution emulsification pipe are: the length is 1000 mm, the inner diameter is 400 mm, and the outer diameter is 450 mm. The number of distribution emulsification pipes is 37, and the porosity of a single distribution emulsification pipe is 30%, the material of the distribution emulsification pipe is a composite material with aluminum oxide as the main material, and the pore diameter of the channel is 10000 nanometers (10 microns).

[0053] Raw oil composition: 35% vacuum residue, density: 0.9586, 65% wax oil, density 0.8937; emulsified water: sulfur-containing ammonia sewage from FCC plant.

[0054] The condition of water-in-oil emulsifica...

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Abstract

The invention discloses a mixing emulsification method and a feeding method of catalytic feed oil. The mixing emulsification method includes: using emulsified water to perform water-in-oil emulsification of the catalytic feed oil, so that the particle size of the oil droplets in the obtained emulsified feed oil is less than 50 Micron. Feeding the emulsified raw oil emulsified by the mixed emulsification method of the present invention into the riser reactor can increase the yield of light oil and reduce the yield of coke and dry gas.

Description

Technical field [0001] The invention relates to a mixing and emulsifying method of catalytic raw oil and a feeding method. Background technique [0002] Catalytic cracking (FCC) is an important means to lighten heavy oil. How to increase the yield of gasoline, diesel, and liquefied gas and reduce the yield of coke and dry gas is the main problem that FCC has always wanted to solve. [0003] In recent years, the proportion of heavy raw materials in catalytic cracking raw materials has increased year by year. Most of the catalytic cracking feed oil is residual oil and wax oil. During the reaction process, the atomization condition and gasification degree of the catalytic cracking feed oil have an important impact on the reaction. The catalytic cracking reaction plays a very important role. If the atomization effect of the feed oil is poor before feeding, the gasification rate at the inlet of the riser reactor is low, and the gasification time is long, it is easy to cause cokin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/08C10G11/10B01J8/06
Inventor 杨启业吴雷范声刘琼琼裴爱芳刘坤黄中华任军民
Owner CHINA PETROLEUM & CHEM CORP
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