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Supergravity reaction system for oil-solid separation

A reaction system and super-gravity technology, applied in the direction of mixers, sludge treatment, chemical instruments and methods, etc., can solve the problems of poor mixing effect, non-continuous treatment, and large equipment volume in stirred tanks, so as to improve the effect and save energy. The effect of occupying an area and simplifying the operation process

Pending Publication Date: 2021-12-21
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The core mixing equipment used in the treatment of oil sludge and oil slurry by thermochemical cleaning method and additive sedimentation method is the stirring tank. Since the oil sludge and oil slurry are high-viscosity systems, the mixing effect of the stirring tank is poor in dealing with the mixing of high-viscosity systems. , leading to problems such as uneven mixing, high energy consumption, large equipment volume, and inability to continuously process have also become defects in existing processing equipment

Method used

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  • Supergravity reaction system for oil-solid separation
  • Supergravity reaction system for oil-solid separation
  • Supergravity reaction system for oil-solid separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Take a certain amount of polyacrylamide and ammonium sulfate to prepare a certain mass fraction of a settling agent solution at a ratio of 1:1, and heat the settling agent and oil slurry (ash content: 5200μg / g) to 95°C; Transport the oil slurry (flow rate of 40kɡ / h) and sedimentation agent (based on the oil slurry flow rate of 1000μg / g) to the channel device 1 for pre-mixing and then pass it into the supergravity reaction device 2 for thorough mixing at a speed of 700rpm. The temperature is 95°C, and the mixed solution is drained into a settling and separating tank for standing and settling for 24 hours, and the settling temperature is 95°C. Take 10% of the middle part of the settled oil slurry to measure its ash content, and the ash content is 90 μg / g.

Embodiment 2

[0060] Heat a certain oil-soluble sedimentation agent and oil slurry (ash content: 5200μg / g) to 95°C. Use a screw pump and a peristaltic pump to transport the oil slurry (the flow rate is 35kɡ / h) and the sedimentation agent (based on the oil slurry flow rate: 400μg / g) to the channel device 1 for pre-mixing, and then pass it into the supergravity reaction device 2 for further processing. Mix well, the rotation speed is 700rpm, the mixing temperature is 95°C, the mixed solution is drained into the settling separation tank for standing and settling for 24 hours, the settling temperature is 95°C. Take the middle 10% of the settled oil slurry to measure its ash content, and the ash content is 70 μg / g.

Embodiment 3

[0064] Heat a certain oil-soluble sedimentation agent and oil slurry (ash content: 5200μg / g) to 95°C. Use a screw pump and a peristaltic pump to transport the oil slurry (the flow rate is 35kɡ / h) and the sedimentation agent (based on the oil slurry flow rate: 600μg / g) to the channel device 1 for pre-mixing, and then pass it into the supergravity reaction device 2 for further processing. Mix well, the rotation speed is 900rpm, the mixing temperature is 95°C, the mixed solution is drained into the settling separation tank for 24 hours of static settling, the settling temperature is 95°C. Take 10% of the middle part of the settled oil slurry to measure its ash content, and the ash content is 60 μg / g.

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Abstract

The present invention provides a supergravity reaction system for oil-solid separation, the supergravity reaction system comprises: a channel device and a supergravity reaction device; the channel device is internally provided with a plurality of channel elements, and each channel element can form a flow channel with a set shape; the supergravity reaction device is internally provided with a cutting piece, and the cutting piece is used for cutting the mixed oil sludge fluid output by the channel device into fluid infinitesimal elements; the channel device is used for preliminarily mixing oil sludge (oil slurry) and a cleaning agent (settling agent), then the supergravity reaction device is used for enabling premixed liquid to achieve more uniform mixing and enhanced mass transfer effects, finally, an oil-solid system is separated under the action of an active agent, and the oil-solid separation efficiency is improved; according to the whole device, the operation process is simplified, the occupied area of equipment is saved, mixing of the oil sludge (oil slurry) and the cleaning agent (settling agent) is enhanced, and the oil sludge separation and oil slurry solid removal treatment effects are improved.

Description

technical field [0001] The invention relates to the technical field of fluid mixing and separation, and more specifically, relates to a hypergravity reaction system for oil-solid separation. Background technique [0002] A large amount of oily sludge is generated during the extraction, transportation, storage and refining of crude oil. And in the refining process of crude oil, especially the catalytic cracking process, a large amount of oil slurry will be produced. According to statistics, the country adds about 6.3 million tons of oil sludge every year, and the historically retained oil sludge reaches 143 million tons. my country's current oil sludge disposal gap is about 2.7 million tons per year. But in fact, the utilization rate of the approved capacity of hazardous waste in my country is only 30%, the actual gap is about 5.3 million tons per year, and the actual disposal rate is only 17.45%. As the most important low-value-added by-product of catalytic cracking, oil s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/148B01F13/10
CPCC02F11/148
Inventor 孙宝昌马强初广文徐方俊陈建峰高文岭邹海魁孟丽丽张亮亮刘欢罗勇
Owner BEIJING UNIV OF CHEM TECH