Condensation method for oil gas recovery

A technology of oil recovery and condensation, which is applied in the field of environmental safety and energy utilization, can solve the problems of insignificant investment benefits, expensive low-temperature compressors, and large power consumption, and achieve the effects of simple structure, improved COP, and long life

Active Publication Date: 2010-08-04
TSINGHUA UNIV +1
View PDF9 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is: if the condensing temperature is too low, the power consumption is too large, the low-temperature compressor is expensive, and the return on investment is not significant

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
  • Condensation method for oil gas recovery
  • Condensation method for oil gas recovery
  • Condensation method for oil gas recovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0048] Example: The oil-gas mixture of an oil and gas company as described in Table 1, which is characterized as an oxygen-free mixture with methane as the main component, and the purpose is to remove and recycle non-methane hydrocarbons in oil and gas.

[0049] Using ordinary condensation methods, when the cryogenic temperature is -81°C, the condensation recovery efficiency is less than 75%, which is far below the "Gas Station Air Pollutant Emission Standards" issued by the State Environmental Protection Administration and the General Administration of Quality Supervision, Inspection and Quarantine of my country. To meet the requirement of 95% recovery of non-methane hydrocarbon oil and gas, it is found through calculation that the cryogenic temperature should reach about -113°C. When the temperature is cooled to -80°C and further cryogenic cooling is required, liquid nitrogen is used for further cooling in engineering.

[0050] Table 1 Composition and concentration of oil-ga...

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

No PUM Login to view more

Abstract

The invention relates to a condensation method for oil gas recovery, belonging to the technical field of energy utilization, environment safety, environment protection, and the like. The invention adopts an oil gas recovery method of multi-stage condensation, interstage pressurization and low-temperature tail gas cooling capacity recovery and realizes the recovery of volatile oil gas. The method has the high recovery efficiency, and can effectively save the energy source, and a system used in the method has low cost, simple structure, long service life and easy operation. The invention can be applied to recovery of volatile oil gas of crude oil, gasoline and the like with lower carbon content in the occasions of gas stations, oil storages, oil fields and the like.

Description

technical field [0001] The invention relates to a method for recovering volatile oil, which can be applied to the recovery of volatile oil and gas with low carbon content such as crude oil and gasoline in gas stations, oil depots and oil fields, etc., and belongs to technologies such as energy utilization and environmental safety field. Background technique [0002] VOCs with low carbon content present in crude oil and gasoline are highly volatile. The evaporation loss of oil products is a waste of energy, and directly discharging them into the atmosphere will endanger the health of the surrounding staff and nearby residents, and it will easily form photochemical smog if it diffuses into the air for a long time. Since the oil-gas mixture has exceeded the lower explosion limit, it may pose an explosive threat to the surrounding environment, which is not conducive to environmental protection. Therefore, the recovery of volatile oil vapor is a necessary link no matter in the ...

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 Applications(China)
IPC IPC(8): F25J1/02
Inventor 李俊明李成李红旗
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap