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    Nitrogen+Syngas 398 Nov-Dec 2025

    Classification for hydrogen-fuelled tug


    Classification for hydrogen-fuelled tug

    ClassNK has added Japan’s first hydrogen-fuelled tug Ten-Oh to its register, built by Tsuneishi Shipbuilding Co., Ltd. This vessel was developed and built under the ‘Nippon Foundation Zero Emission Ships Project’, a grant program by The Nippon Foundation aimed at developing ships with zero CO2 emissions. Based on discussions among the parties involved during the planning stage of the vessel, ClassNK reviewed the safety requirements and countermeasures for hydrogen-fuelled ships by applying Part GF of its ‘Rules and Guidance for the Survey and Construction of Steel Ships’ etc. These reviews focused on issues such as preventing explosions caused by the high ignitability of hydrogen and mitigating the potential impacts of hydrogen fuel leakage on crew members and the environment.

    ClassNK says that it will continuously support the safe operation of the vessel through surveys in service, and not only that, support industry’s effort toward decarbonisation through using the knowledge and experience gained from the surveys for keeping its guidelines up to date and contributing to establishment of the appropriate international standard.

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    India’s CFCL starts TAN production at Gadepan

    Chambal Fertilisers and Chemicals (CFCL) commenced commercial production of technical ammonium nitrate at its Gadepan complex in Kota district, Rajasthan, on 20 August, the company confirmed in a stock exchange filing. The unit produces prilled high-density ammonium nitrate (HDAN) and has a capacity of 240,000 t/a. An integrated weak nitric acid plant at the same site has a capacity of 210,000 t/a and supplies the downstream unit. Larsen & Toubro executed the works on a lump-sum turnkey basis under a technology licence from Casale, it said.