China Energy Investment has been granted a patent for a system and method for managing boil-off in liquefied fuel storage. The system includes a cryotank, pump, heat exchanger, expansion valve, and liquid-vapor splitter, designed to efficiently separate and recycle phases of liquefied fuel. GlobalData’s report on China Energy Investment gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on China Energy Investment, Hydrogen refueling stations was a key innovation area identified from patents. China Energy Investment's grant share as of July 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.
Boil-off management system for liquefied fuel storage
The granted patent US12031677B2 outlines a sophisticated system for managing liquefied fuel, particularly hydrogen, within a cryotank. The system includes a cryotank for storage, a pump that compresses and delivers a first stream of liquefied fuel, and a heat exchanger that cools this stream. An expansion valve then transforms the cooled stream into a multiphase mixture of liquid and gas, which is subsequently separated by a liquid-vapor splitter. The liquid phase is returned to the cryotank, while the gas phase is redirected to the heat exchanger to enhance cooling efficiency. Additional components such as submerged pumps, an expander turbine, and an interlock chamber are also integrated to optimize the system's functionality.
Moreover, the patent describes methods for utilizing the liquefied fuel, including the provision of a second stream to a refueling station for dispensing as either gaseous or liquid fuel. The system can also leverage vapor from the cryotank's headspace for cooling and can incorporate a refrigeration unit to supply cooling to external facilities. A backup power unit, potentially utilizing fuel cells, is designed to generate electrical power, which can be directed to support operations such as powering data centers or the pump itself. This comprehensive approach not only enhances the efficiency of liquefied fuel management but also provides additional utility through cooling and power generation capabilities.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
