METHOD FOR PRODUCING FUEL OIL BASE

• Main Authors: YONEDA AKIRA, MARUKAWA YUKA, MATSUDA HITOSHI, AOKI NOBUO, ARASHIDA RYO, KATO HIROAKI
• Format: Patent
• Language: English; French; Japanese
• Published: 08.08.2013
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; BEER; BIOCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; MICROBIOLOGY; MINERAL WAXES; MUTATION OR GENETIC ENGINEERING; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SPIRITS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; VINEGAR; WINE

A method for producing a fuel oil base, provided with: a first step for aerobically culturing microalgae Euglena under nitrogen-deficient conditions; a second step for adding a nutrient source to a solution to be treated, the solution containing the microalgae Euglena cultured in the first step, and then setting the dissolved oxygen concentration of the solution to be treated at 0.03 mg/L or lower, conducting anaerobic fermentation of the microalgae Euglena, and obtaining a wax ester; and a third step for hydrogenating stock oil containing the wax ester and obtaining a fuel oil base. L'invention concerne un procédé de production d'une base de mazout, comprenant : une première étape de culture aérobie de microalgues Euglena dans des conditions déficientes en azote ; une deuxième étape d'ajout d'une source de nutriments à une solution à traiter, la solution contenant les microalgues Euglena cultivées lors de la première étape, puis d'ajustement de la concentration en oxygène dissous de la solution à traiter à 0,03 mg/L ou moins, la réalisation d'une fermentation anaérobie des microalgues Euglena, et l'obtention d'un ester de cire ; et une troisième étape d'hydrogénation d'une huile de base contenant l'ester de cire et d'obtention d'une base de mazout.