Systems for managing liquid gases transported and / or stored by floating structures.

By employing a combination of gas supply loops, heat treatment pipelines, and mixing devices in a floating structure, the space and cost issues caused by separators and subcooling devices are resolved, enabling efficient reliquefaction and pressure control of gaseous gases and providing a compact and economical gas management system.

CN122095205APending Publication Date: 2026-05-26GAZTRANSPORT & TECHNIGAZ SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GAZTRANSPORT & TECHNIGAZ SA
Filing Date
2024-10-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing floating structures, the presence of separators and subcooling devices during the transportation and storage of liquid gases results in large system space occupation and high costs, and makes it difficult to effectively manage the reliquefaction and pressure control of gaseous gases.

Method used

By combining a gas supply circuit, heat treatment pipeline, cooling pipeline and mixing device, and through a compression device, heat exchanger and pumping device, the gaseous gas is reliquefied and pressure regulated, eliminating the need for a separator and subcooling device. The mixing device mixes the gas at the bottom outlet of the tank to ensure complete reliquefaction of the gas.

Benefits of technology

It achieves a compact and economical gas management system, avoiding the space and cost of separators and subcooling devices, ensuring effective reliquefaction of gaseous gases, and reducing the overall size and operating cost of the system.

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Abstract

The present invention relates to a management system (1) for managing liquid gas transported and / or stored by a floating structure comprising at least one tank (2), the management system (1) comprising: a supply loop (4), a heat treatment line (6), a heat exchanger (7), and a cooling line (8), characterized in that the management system (1) includes a mixing device (9) configured to mix gaseous gas flowing in the heat treatment line (6) with liquid gas flowing in the cooling line (8), the management system (1) including a return line (14) having at least one outlet orifice (15) configured to be positioned at the bottom of the tank (2).
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