Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A hydraulic cavitation device and system for upgrading heavy oil

A technology for hydrodynamic cavitation and heavy oil, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of low saturated vapor pressure, high flow velocity, high viscosity of heavy oil, etc. Applicable effect

Active Publication Date: 2017-07-21
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this extreme environment can crack macromolecules, the saturated vapor pressure of heavy oil is low, and the flow velocity required to vaporize heavy oil is high, and the viscosity of heavy oil is very high, so it is quite difficult to achieve cavitation
At present, there is no relevant device for upgrading heavy oil by hydrodynamically cavitating heavy oil at a relatively low temperature (below 70°C)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A hydraulic cavitation device and system for upgrading heavy oil
  • A hydraulic cavitation device and system for upgrading heavy oil
  • A hydraulic cavitation device and system for upgrading heavy oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the hydraulic cavitation device 1 for heavy oil upgrading in this embodiment includes a heavy oil inlet section 11, a throat section 12 and a stabilizing section 13 arranged in sequence, and the flow area of ​​the throat section 12 is smaller than that of the heavy oil inlet section 11. The flow area of ​​the inlet end of the stabilizing section 13, the throat section 12 is respectively connected with the heavy oil inlet section 11 and the stabilizing section 13 and communicated axially, and the auxiliary agent inlet section 14 communicating with the throat section 12 is arranged radially on the throat section 12 .

[0032] Specifically, the heavy oil inlet section 11, the throat section 12 and the stabilizing section 13 are all cylindrical and have axial through holes, the through holes of each section are axially connected, and each through hole is coaxially arranged; in the heavy oil inlet section 11 and Both ends of the stabilizing section...

Embodiment 2

[0038] Adopt the hydraulic cavitation device of embodiment 1 to carry out heavy oil reforming, difference is: D1 is 40mm, D2 / D1 is 0.2, D3 / D2 is 0.3, L1 / D1 is 1, L2 / D2 is 1.5, L3 / D1 is 5. The inner diameter of the stabilizing section is 40mm, and the heavy oil inlet section, the throat section and the stabilizing section are integrally formed.

[0039] After the heavy oil is heated to about 60°C and pressurized to about 5.1MPa by a high-pressure pump, it is sent to the heavy oil inlet section of the hydraulic cavitation device. When the heavy oil reaches the throat section, trimethylamine (cavitation aid) is passed through the auxiliary agent inlet. The trimethylamine is vaporized in the stage suction hydraulic cavitation device, and the heavy oil and trimethylamine undergo hydrodynamic cavitation in the stable stage, wherein the addition of trimethylamine is controlled so that the weight ratio of heavy oil and trimethylamine is 100:5; hydraulic cavitation After the product is...

Embodiment 3

[0047] Such as figure 2 As shown, the hydraulic cavitation system for heavy oil upgrading in this embodiment includes a hydraulic cavitation device 1, a high-pressure pump 2 and a gas-liquid separation device 3, the high-pressure pump 2 is connected to the heavy oil inlet section of the hydraulic cavitation device 1, and the gas The liquid separation device 3 is connected with the stabilization section of the hydraulic cavitation device 1 . Specifically, the hydraulic cavitation device 1 may be the hydraulic cavitation device of Embodiment 1 or 2.

[0048] Further, the system also includes an auxiliary cavitation agent storage tank 4 and a heavy oil storage tank 5, the auxiliary cavitation agent storage tank 4 is connected to the auxiliary agent inlet section of the hydraulic cavitation device 1 through a pipeline, and the heavy oil storage tank 5 is connected to the high-pressure Pump 2 is connected. Moreover, a pump 6 may be provided on the pipeline between the auxiliary ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
boiling pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a hydraulic cavitation device and system for upgrading heavy oil. The hydraulic cavitation device of the present invention comprises a heavy oil inlet section, a throat section and a stabilizing section arranged in sequence, the flow area of ​​the throat section is smaller than the flow area of ​​the heavy oil inlet section and the stabilizing section, and the throat section is respectively connected to the The heavy oil inlet section is connected to the stabilizing section and communicated axially, and an auxiliary agent inlet section communicating with the throat section is arranged radially on the throat section. The device and system of the present invention can realize reforming of heavy oil by hydraulic cavitation at relatively low temperature, and can obtain good reforming and viscosity reducing effects.

Description

technical field [0001] The invention relates to a heavy oil reforming device, in particular to a hydraulic cavitation device and system for heavy oil reforming. Background technique [0002] Heavy oil usually refers to a density greater than 0.93g / cm 3 , Crude oil with a boiling point higher than 350°C under normal pressure. Due to the high content of long-chain macromolecules, colloids and asphaltenes, heavy oil has high viscosity and poor fluidity, which has adverse effects on crude oil transportation. Therefore, heavy oil needs to be modified such as viscosity reduction. At present, the commonly used heavy oil viscosity reduction methods at home and abroad can be divided into two categories: physical methods and chemical methods. [0003] Physical viscosity reduction methods mainly include heating viscosity reduction method, thin oil viscosity reduction method, low viscosity liquid ring viscosity reduction method, etc. The heating visbreaking method is mainly to obtain...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G31/00
Inventor 郭绪强
Owner CHINA UNIV OF PETROLEUM (BEIJING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com