Systems and methods for capturing natural gas liquids from oil tank vapors

a technology of oil tank vapor and natural gas, which is applied in the direction of liquid hydrocarbon mixture recovery, lighting and heating apparatus, solidification, etc., can solve the problems of little or no financial return and considerable environmental pollution, and achieve the effect of avoiding ice formation

Inactive Publication Date: 2018-02-15
PIONEER ENERGY
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  • Abstract
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  • Claims
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AI Technical Summary

Benefits of technology

[0036]In one embodiment, high pressures are employed to operate the method with minimal cooling to eliminate ice formation.

Problems solved by technology

Currently these vapors are either flared, causing considerable environmental pollution, or compressed at some cost into a sales line using a Vapor Recovery Unit.
In either case, little or no financial return is achieved.

Method used

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  • Systems and methods for capturing natural gas liquids from oil tank vapors
  • Systems and methods for capturing natural gas liquids from oil tank vapors
  • Systems and methods for capturing natural gas liquids from oil tank vapors

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Embodiment Construction

[0051]Commonly overlooked, tank vapors can be a big environmental problem. Some oil producers vent or combust oil vapors, ignoring environmental regulations while trying to minimize operating cost. Some use Vapor Recover Units (VRUs) to compress oil vapors into sales lines.

[0052]To cut oil vapor emission and carbon emission, reduce operating expenses, while capitalizing on natural gas liquids (NGLs) present in tank vapors, embodiments of the present invention capture and liquefy tank hydrocarbon vapors, and actively reject oxygen from the liquid hydrocarbon product, so that instead of being flared or disposed of at minimal return as sales-line gas, they can be shipped off to the market and sold as high-quality, valuable liquid fuels. In addition to drastically cutting environmental impacts, low pressure NGL-rich vapors from oil tank batteries can thus be monetized, providing a much better economic return than using a Vapor Recovery Unit (VRU) alone. Oil vapor or gas processing units...

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PUM

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Abstract

A hydrocarbon vapor capture and processing system is disclosed to reduce both carbon emissions and conventional pollution, while producing financial returns by turning waste vapors into high quality NGLs. In one embodiment, the hydrocarbon vapor is sent to a compressor for compression. Compressed vapor is then cooled via an air cooler, before being condensed by a refrigerator to form a liquid. The resulting two-phase flow is then separated into a dry gas stream and a liquid stream using a cyclonic separator. The dry gas stream may be transmitted as a light gas to sales line. The resulting liquid stream is passed to a stripping column to produce NGLs. The system offers great benefits to the environment and public health, by providing a technology that drastically cuts carbon emissions and noxious pollution, while incentivizing drillers to implement such measures through its ability to produce revenue.

Description

REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority from U.S. Ser. No. 62 / 372,711, filed on Aug. 9, 2016, entitled “VAPORCATCHER System for Capturing Natural Gas Liquids from Oil Tank Vapors,” the entirety of which is hereby incorporated by reference herein.NOTICE OF COPYRIGHTS AND TRADEDRESS[0002]A portion of the disclosure of this patent document contains material which is subject to copyright protection. This patent document may show and / or describe matter which is or may become tradedress of the owner. The copyright and tradedress owner has no objection to the facsimile reproduction by anyone of the patent disclosure as it appears in the U.S. Patent and Trademark Office files or records, but otherwise reserves all copyright and tradedress rights whatsoever.FIELD OF THE INVENTION[0003]The present invention relates to systems and methods for enabling the utilization of oil vapors such as those emitted by oil tanks.BACKGROUND OF THE INVENTION[0004]The statements...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25J3/06F25J3/02
CPCF25J3/061F25J3/0635F25J3/0242F25J2205/10F25J2200/02F25J2280/50F25J2215/04F25J2230/60F25J2230/30F25J2260/60F25J2270/90F25J2210/90F25J3/0209F25J3/0233F25J2205/04F25J2290/42C10G5/06
Inventor ZUBRIN, ROBERT M.SARGSYAN, GEVORGYOUNG, ANDREW C.HOTTON, KEVINLEWIS, MATTHEW
Owner PIONEER ENERGY
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