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Combination processing method of catalytic cracking oil slurry

A catalytic cracking oil slurry and combined processing technology, which is applied in the petroleum industry, hydrotreating process, hydrocarbon oil treatment, etc., can solve the problems of low comprehensive utilization rate of high added value of oil slurry resources, unclean removal, etc., to achieve Increased yield, good effect, good hydrophilic effect

Active Publication Date: 2021-04-09
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a catalytic cracking system for overcoming the defects of unclean removal of solid powder catalyst in oil slurry and low comprehensive utilization rate of high value-added oil slurry resources in the existing technology of catalytic cracking oil slurry processing and utilization technology. Combined processing method of oil slurry

Method used

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  • Combination processing method of catalytic cracking oil slurry
  • Combination processing method of catalytic cracking oil slurry
  • Combination processing method of catalytic cracking oil slurry

Examples

Experimental program
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Effect test

Embodiment approach

[0048] According to a preferred embodiment of the present invention, the diluted oil slurry is preheated and then mixed with water. Preheating the diluted oil slurry can further completely dissolve the oil slurry in the diluent, thereby improving the desolidification effect of the diluted oil slurry and water. The preheating temperature is preferably 50-150°C, preferably 60-100°C.

[0049] In the present invention, the fiber filaments have good hydrophilicity and can simultaneously capture the inclusions formed by the amphoteric surface activity and the catalyst powder as well as water, so as to fully realize the desolidification of the catalytic cracking oil slurry.

[0050] Specifically, the amphoteric surfactant of the present invention has positive and negative charges at the same time, and has an isoelectric point. When the amphoteric surfactant is dispersed on the fiber filament with water, the electron-rich colloid and asphalt in the oil phase The catalyst powder is no...

Embodiment 1

[0085] (1) Combine 1# catalytic cracking oil slurry (the composition is shown in Table 1), sodium lauryl iminodipropionate and diluent (atmospheric pressure diesel oil and ethyl acetate volume ratio is 5:1, density is 0.86g / cm 3 ) according to the mass ratio of 1:0.0001:1.5 after mixing and diluting, preheat to 100 ℃. The fiber filaments in the mass transfer space cylinder of the fiber liquid film contactor are 316 series stainless steel wires (0.05mm in diameter), the aspect ratio of the mass transfer space of the cylinder is 60:1, and the filling rate of the cylinder is 5 % by volume, the volume of the fiber liquid membrane contactor is 0.3L. The volumetric space velocity of the preheated diluted oil slurry is 20h -1 Inject into the fiber liquid film contactor, and at the same time inject 10% by weight (relative to the diluted oil slurry) into the fiber liquid film contactor; the contact temperature in the fiber liquid film contactor is 130° C., and the contact pressure is ...

Embodiment 2

[0110] (1) Combine 2# catalytic cracking oil slurry (composition shown in Table 7), lauryl betaine and diluent (the volume ratio of coked diesel oil and ethyl laurate is 10:1, and the density is 0.862g / cm 3 ) according to the mass ratio of 1:0.0003:0.5 after mixing and diluting, preheat to 50 ℃. The fiber filaments in the mass transfer space cylinder of the fiber liquid film contactor are 316 series stainless steel wires (0.05mm in diameter), the aspect ratio of the mass transfer space of the cylinder is 10:1, and the filling ratio of the cylinder is 30 % by volume, the volume of the fiber liquid membrane contactor is 0.3L. Dilute the preheated oil slurry according to the liquid hour volume space velocity of 10h -1 Inject into the fiber liquid film contactor, and at the same time inject 10% by weight (relative to the diluted oil slurry) into the fiber liquid film contactor; the contact temperature in the fiber liquid film contactor is 150° C., and the contact pressure is 1.8 ...

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Abstract

The invention relates to the field of catalytic cracking oil slurry treatment, and discloses a method for combined processing of catalytic cracking oil slurry, the method comprising: (1) mixing catalytic cracking oil slurry, amphoteric surfactant and diluent, diluting the obtained The oil slurry is contacted with water in the fiber liquid film contactor, and the fiber liquid film contactor includes a mass transfer space filled with fiber filaments; (2) the material obtained in step (1) is subjected to three-phase separation of oil, water and solid (3) the oil phase obtained in step (2) is contacted with hydrogen for hydroprocessing; (4) the hydrogenated product obtained in step (3) is extracted and distilled, and the heavy oil fraction obtained by the distillation is Incorporated into hydrocracking feedstock, catalytic cracking feedstock and delayed coking feedstock. The method can continuously and efficiently remove solid powder in the catalytic cracking oil slurry, increase the yield of light oil such as liquefied gas, gasoline, diesel oil, and improve the resource utilization rate of the catalytic cracking oil slurry.

Description

technical field [0001] The invention relates to the field of catalytic cracking oil slurry treatment, in particular to a combined processing method for catalytic cracking oil slurry. Background technique [0002] According to statistics, in 2016, the primary processing volume of crude oil in China was about 530 million t / a, of which the total processing volume of catalytic cracking units was about 150 million t / a. -10%, the output of catalytic cracking oil slurry has reached more than 7.5Mt / a. Under the background of increasingly heavy and inferior catalytic raw materials, the output of oil slurry will inevitably increase. In order to increase the yield of light oil, the catalytic cracking unit in my country mostly adopts the oil slurry back refining operation. The weight of raw materials has brought many adverse effects on catalytic cracking, especially coking and fouling, which make the unit unable to operate normally. For this reason, in order to optimize production op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/00
CPCC10G69/00
Inventor 李华蒋文军佘喜春贺晓军陈庆岭曾志煜曾文广谢清峰罗雄威谢琼玉
Owner CHINA PETROLEUM & CHEM CORP
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