天然ガスハイドレート輸送チェーンの技術課題と現状(<特集>ガス関連技術の最新動向-ガス開発ビジネスチャンスの拡大-)

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Currently, a great deal of attention has been paid to hydrates as an effective gas transportation medium. Natural Gas Hydrates (hereafter NGH) chain is expected to be suitable for the cases of small-medium gas fields where the investment in LNG facilities is not economical. Several Japanese private companies began the development for devices of each process in bench-scale, which composes NGH chain. And some governmental corporation such as Japan Oil, Gas and Metals National Corporation are promoting these developments by financial supports. Hydrates formation process is supposed to be most important as a potential part saving the CAPEX compared to the LNG chain, and therefore each company focuses on the development of devices for hydrates formation process. Mitsui Engineering & Shipbuilding Co. developed the bubbling/stirring-type formation reactor, Mitsubishi Heavy Industries, Ltd. developed the water-spraying-type formation reactor and JFE Engineering Co. developed a new hydrate formation system, which uses micro-bubbles with tubular reactor. It has not been judged yet which formation reactor is most economically optimum. It should be judged from the viewpoint of removal of heat, scale-up properties and relations to other processes etc. Shipping and re-gasification process are also under development by mainly Mitsui Engineering & Shipbuilding Co. etc. In near future, it is further needed to improve the precision of the feasible study along with an advance of the technology development. It is important not only to consider an optimization of one process but also to understand an impact of one process on the chain and an optimization of entire chain.
一般社団法人日本エネルギー学会の論文
2005-01-20

天然ガスハイドレート輸送チェーンの技術課題と現状(<特集>ガス関連技術の最新動向-ガス開発ビジネスチャンスの拡大-)

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