Invention Publication
- Patent Title: METHOD FOR EXTRACTING ETHANE FROM AN INITIAL NATURAL GAS STREAM AND CORRESPONDING PLANT
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Application No.: US18036155Application Date: 2021-11-09
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Publication No.: US20230408191A1Publication Date: 2023-12-21
- Inventor: Sylvain Vovard , Benoit Laflotte
- Applicant: TECHNIP FRANCE
- Applicant Address: FR NANTERRE CEDEX
- Assignee: TECHNIP ENERGIES FRANCE
- Current Assignee: TECHNIP ENERGIES FRANCE
- Current Assignee Address: FR Nanterre Cedex
- Priority: FR 2011521 2020.11.10
- International Application: PCT/EP2021/081135 2021.11.09
- Date entered country: 2023-05-09
- Main IPC: F25J3/02
- IPC: F25J3/02 ; F25J1/02 ; F25J1/00
Abstract:
A method includes:
recovering and compressing a head stream coming from a separation column, to form a stream of compressed purified natural gas;
liquefying the stream of compressed purified natural gas in a liquefaction unit to form a stream of a pressurized liquefied natural gas;
flash expanding of the stream of pressurized liquefied natural gas and recovering in a storage;
recovering and compressing of a flow of flash gas coming from the expanding;
separating the flow of compressed flash gas (132) into a fuel stream and a recycle stream;
cooling and expanding the recycle stream, then introducing the cooled and expanded recycle stream at a head stage of the separation column.
recovering and compressing a head stream coming from a separation column, to form a stream of compressed purified natural gas;
liquefying the stream of compressed purified natural gas in a liquefaction unit to form a stream of a pressurized liquefied natural gas;
flash expanding of the stream of pressurized liquefied natural gas and recovering in a storage;
recovering and compressing of a flow of flash gas coming from the expanding;
separating the flow of compressed flash gas (132) into a fuel stream and a recycle stream;
cooling and expanding the recycle stream, then introducing the cooled and expanded recycle stream at a head stage of the separation column.
Information query
