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U-shaped pipe crude oil ultrasonic preprocessor and use method thereof

A preprocessor and U-shaped tube technology, applied in mechanical dehydration/demulsification, hydrocarbon oil treatment, petroleum industry, etc., to achieve the effect of large operating flexibility, simple process, and good application prospects

Active Publication Date: 2015-01-14
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing equipment related to ultrasonic emulsification and demulsification is carried out separately, either emulsification equipment or separation equipment, and in the same process, ultrasonic emulsification and ultrasonic demulsification are combined to solve the ultrasonic desalination and desalination of crude oil required There is no pretreatment equipment for metal mixing and separation

Method used

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  • U-shaped pipe crude oil ultrasonic preprocessor and use method thereof
  • U-shaped pipe crude oil ultrasonic preprocessor and use method thereof
  • U-shaped pipe crude oil ultrasonic preprocessor and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The U-shaped tube crude oil ultrasonic preprocessor used in this example was developed by China Petroleum Karamay Petrochemical Company. It is connected to a crude oil static mixer in front of it, followed by a crude oil electric desalting tank for 1 cubic test. The working frequency of the ultrasonic instrument is 21KHz, and the effective volume of the U-shaped tube after removing the ultrasonic horn is 22 liters. The oil used in the test is crude oil distilled and processed by the second set of Karamay Petrochemical Company, and its calcium and iron contents are 9.1ug / g and 5.0ug / g respectively. , The salt content is 17mgNaCl / L. According to 5% water injection, the amount of ammonium citrate added is twice the total molar number of calcium and iron. Continuous ultrasonic working mode, ultrasonic power 200W, demulsification ultrasonic device adopts pulse ultrasonic action mode, ultrasonic power 90W, ultrasonic action period 75ms, pulse width 9m, crude oil is taken from...

Embodiment 2

[0028] The U-shaped tube crude oil ultrasonic preprocessor used in this example was developed by China Petroleum Karamay Petrochemical Company. It is connected to a crude oil static mixer in front of it, followed by a crude oil electric desalting tank for 1 cubic test. The working frequency of the ultrasonic instrument is 35KHz, and the effective volume of the U-shaped tube after removing the ultrasonic horn is 40 liters. The oil used in the test is crude oil processed by the second coking unit of Karamay Petrochemical Company, and its calcium and iron contents are 240.6ug / g and 21.7ug / g respectively. g, the salt content is 3.9mgNaCl / L. According to 6% water injection, the amount of sulfamic acid added is 3 times of the total moles of calcium, iron and magnesium. The demulsifier adopts the continuous ultrasonic working mode, the ultrasonic power is 280W, the demulsification ultrasonic device adopts the pulse ultrasonic action mode, the ultrasonic power is 90W, the ultrasonic a...

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PUM

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Abstract

The invention relates to a U-shaped pipe crude oil ultrasonic preprocessor. An outer cylinder (1) is a U-shaped pipe, two opening of which are sealed by flanges. Openings are respectively disposed close to two straight pipe openings of the U-shaped pipe, i.e. a crude oil emulsion inlet (3) and a crude oil emulsion outlet (8), and the central bottom tip of the U-shaped pipe is equipped with a sampling port (9). Two sets of ultrasonic generation assemblies are mounted on the two straight pipes of the U-shaped pipe, ultrasonic amplitude transformers (2) are cylindrical metal bodies and are located at the very centers of the straight pipes respectively, and the ends of the ultrasonic amplitude transformers are flush with the straight pipe ends. Vibration transmission rods (5) are connected to one ends of the ultrasonic amplitude transformers (2), ultrasonic transducer and cooling water jackets (7) are connected to one ends of the vibration transmission rods (5), ultrasonic power supply and controllers (6) are in connection with the ultrasonic transducer and cooling water jackets (7) through power lines, and fixation and sealing flanges (4) fix the ultrasonic generation assemblies on the straight pipes. The processor provided by the invention enhances the crude oil desalting and demetalization effects, the process is simple, the operation is convenient and the operation flexibility is great.

Description

technical field [0001] The invention relates to crude oil pretreatment equipment and its use method, in particular to a U-shaped tube ultrasonic processor for crude oil desalination and demetallization pretreatment and its use method. Background technique [0002] In addition to hydrocarbon compounds, crude oil also contains a small amount of salts and metals combined with hydrocarbon substances. The existence of these substances will have an adverse effect on crude oil processing technology and petroleum products. In the refinery, through crude oil water injection, the crude oil and water are mixed through a static mixer and a mixing valve to wash out the salt in the crude oil, and then the oil and water are separated through an electric desalting process to obtain desalted crude oil. In the demetallization process of crude oil, various demetallizers are generally added to the injection water for washing salt, and the demetallization and electric desalination processes are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/06
CPCC10G33/06C10G2300/205
Inventor 刘江华陈晓东海日古力帕提古力陈爱华郭淑莲
Owner PETROCHINA CO LTD
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