Cosmo Oil Co., Ltd.

Japan Oil, Gas and Metals National Corporation

Japan Petroleum Exploration Co., Ltd.

Inpex Corporation

Nippon Oil Corporation

Nippon Steel Engineering Co., Ltd.

Nippon Steel Engineering Corporation

Yutaka Miyata

Shigenori Nakashizu

Kazuhito Sato

Hiroaki Hara

Toshio Shimizu

The present invention relates to a management method for a wax fraction storage tank that stores a wax fraction produced by Fischer-Tropsch synthesis until the wax fraction is hydrocracked, the management method including maintaining the temperature inside the tank at 90&#xb0; C. to 130&#xb0; C. and maintaining the atmosphere inside the tank to be an inert gas atmosphere.

Management method for wax fraction storage tank

To provide a method for hydrotreating a synthetic hydrocarbon oil, which removes olefins and oxygen-containing compounds by hydrotreatment with the gasification rate restrained and can efficiently convert the synthetic hydrocarbon oil generated by the FT process to a liquid fuel suitable as a fuel for diesel-powered vehicles. A hydrotreating method is disclosed in which a synthetic hydrocarbon oil generated by FT synthesis is hydrotreated using a catalyst in which a definite catalytic metal is allowed to be carried on a support, under definite reaction conditions, with the gasification rate restrained to a definite value or less, thereby removing the olefins and the oxygen-containing compounds.

Hydrotreating method

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Koshigaya, Japan

Yutaka Miyata