Korea Gas has patented a hydrogen storage system utilizing a solution of ethylenediamine bisborane (EDAB) and ethylenediamine (ED). This system enables reversible dehydrogenation/hydrogenation reactions between 20° C. and 200° C. using various heterogeneous metal catalysts, including ruthenium and platinum. GlobalData’s report on Korea Gas 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 Korea Gas, Fuel transport marine vessels was a key innovation area identified from patents. Korea Gas's grant share as of July 2024 was 70%. Grant share is based on the ratio of number of grants to total number of patents.
Hydrogen storage system using ethylenediamine bisborane solution
The granted patent US12037242B2 presents a hydrogen storage system that utilizes a solution of ethylenediamine bisborane (EDAB) and ethylenediamine (ED). This system is designed to facilitate a dehydrogenation/hydrogenation reaction, enabling the extraction of hydrogen through a dehydrogenation process at temperatures ranging from 20°C to 200°C. The reaction is catalyzed by a heterogeneous metal catalyst, which can include metals such as ruthenium, rhodium, palladium, osmium, iridium, platinum, nickel, iron, cobalt, or combinations thereof. Additionally, the system is capable of regenerating EDAB by reacting the products of the dehydrogenation with a reducing agent and water.
The patent further specifies that the hydrogen storage system can perform reversible dehydrogenation/hydrogenation reactions at room temperature. It highlights the use of platinum as a preferred catalyst, particularly in the form of Pt/C, with a catalyst content ranging from 1 to 10 mol%. The solution may also include various solvents such as dioxane, tetrahydrofuran, benzene, methyl chloride, n-hexane, and dimethyl ether. The molar ratio of EDAB to ED in the solution is specified to be between 1:1 and 1:10, and the system is designed to achieve a hydrogen production rate of three equivalents or more per mole of EDAB during the dehydrogenation reaction. Additionally, the patent claims the applicability of this hydrogen storage system in vehicles, indicating its potential use in transportation technologies.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.
