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Tokyo, Japan

INPEX Corporation is a Japanese oil company established in February 1966 as North Sumatra Offshore Petroleum Exploration Co., Ltd. Wikipedia.


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel & Sumikin Engineering Co. | Date: 2015-02-06

There is provided a method for upgrading hydrocarbon compounds, in which hydrocarbon compounds synthesized in a Fisher-Tropsch synthesis reaction are fractionally distillated, and the fractionally distillated hydrocarbon compounds are hydrotreated to produce liquid fuel products. The method includes fractionally distilling heavy hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a liquid into a first middle distillate and a wax fraction, and fractionally distilling light hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a gas into a second middle distillate and a light gas fraction.


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel Engineering Co. | Date: 2014-04-14

There is provided a method for recovering hydrocarbon compounds from a gaseous by-products generated in the Fisher-Tropsch synthesis reaction, the method comprising a pressurizing step in which the gaseous by-products are pressurized, a cooling step in which the pressurized gaseous by-products are pressurized to liquefy hydrocarbon compounds in the gaseous by-products, and a separating step in which the hydrocarbon compounds liquefied in the cooling step are separated from the remaining gaseous by-products.


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel Engineering Co. | Date: 2014-05-01

There is provided a method for recovering hydrocarbon compounds from gaseous by-products generated in a Fischer-Tropsch synthesis reaction. The method includes absorbing light hydrocarbon compounds and a carbon dioxide gas from the gaseous by-products using an absorption solvent including liquid hydrocarbon compounds and a carbon dioxide gas absorbent, separating the absorption solvent which has absorbed the light hydrocarbon compounds and the carbon dioxide gas into the liquid hydrocarbon compounds and the carbon dioxide gas absorbent, heating the separated liquid hydrocarbon compounds to recover the light hydrocarbon compounds from the separated liquid hydrocarbon compounds, heating the separated carbon dioxide gas absorbent to strip the carbon dioxide gas from the separated carbon dioxide gas absorbent, and reusing the gaseous by-products from which the light hydrocarbon compounds and the carbon dioxide gas are absorbed as a feedstock gas for the Fischer-Tropsch synthesis reaction.


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel & Sumikin Engineering Co. | Date: 2014-10-31

Provided is a method for synthesizing liquid hydrocarbon compounds wherein synthesizing liquid hydrocarbon compounds from a synthesis gas by a Fisher-Tropsch synthesis reaction. The method includes a first absorption step of absorbing a carbon dioxide gas, which is contained in gaseous by-products generated in the Fisher-Tropsch synthesis reaction, with an absorbent, and a second absorption step of absorbing a carbon dioxide gas, which is contained in the synthesis gas, with the absorbent which is passed through the first absorption step.


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel & Sumikin Engineering Co. | Date: 2014-01-15

A hydrocarbon synthesis reaction apparatus includes a reactor bringing synthesis gas into contact with a slurry having a solid catalyst suspended in liquid hydrocarbons to synthesize hydrocarbons by the Fischer-Tropsch synthesis reaction; a cylindrical inner tube having a lower end arranged within the reactor at a predetermined distance from the bottom thereof; and a sparger arranged on an inner lower side of the inner tube, which blows the synthesis gas toward the inside of the inner tube. A Fischer-Tropsch synthesis reaction region, where the slurry including bubbles flows out from inside the inner tube through an upper end thereof, is formed in a space between a virtual extension portion of the upper end of the inner tube and an inner surface of the reactor, wherein the slurry is held within the reactor until the upper end of the inner tube is lower than the liquid level of the slurry.

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