Abstract: The present invention relates to a method for producing a liquid hydrocarbon fuel comprising a first reaction step and a second reaction step given below: (1) a first reaction step: hydrocracking a raw material oil in the presence of a hydrocracking reaction catalyst at a feeding pressure of hydrogen of from 0.2 to 0.95 MPa, a liquid hourly space velocity of a liquid volume of the raw material oil of from 0.05 to 0.5 hr?1, and a ratio of a flow rate of the hydrogen to a flow rate of the raw material oil of from 100 to 1,000 NL of the hydrogen per 1 L of the raw material oil; and (2) a second reaction step: hydrogenating the cracked solution in the presence of a hydrogenation reaction catalyst at a feeding pressure of hydrogen of from 0.2 to 0.95 MPa, a liquid hourly space velocity of a liquid volume of the raw material oil of from 0.2 to 5 hr?1, and a ratio of a flow rate of the hydrogen to a flow rate of the raw material oil of from 100 to 1,000 NL of the hydrogen per 1 L of the raw material oil.

Abstract: A method for producing a hydrocarbon liquid fuel including hydrocracking a raw material oil in the presence of a hydrocracking catalyst, at a supplying pressure of hydrogen of from 0.1 to 1.0 MPa, a liquid space velocity of liquid volume of the raw material oil of from 0.05 to 10.0 hr?1, and a flow rate of the hydrogen from 50 to 3,000 NL per 1 L of the raw material oil, wherein the hydrocracking catalyst is produced by a method including stirring a sulfur compound and a cracking catalyst in an aqueous medium to allow liquid-solid separation (step 1); stirring a solid product obtained in the step 1 and a metal component in an aqueous medium to allow liquid-solid separation (step 2); baking a solid product obtained in the step 2 (step 3); and reducing a solid product obtained in the step 3, or reducing a solid product obtained in the step 3, and then subjecting a reduced product to sulfurization treatment (step 4).

Abstract: A method for producing a hydrocarbon liquid fuel including hydrocracking a raw material oil in the presence of a hydrocracking catalyst, at a supplying pressure of hydrogen of from 0.1 to 1.0 MPa, a liquid space velocity of liquid volume of the raw material oil of from 0.05 to 10.0 hr?1, and a flow rate of the hydrogen from 50 to 3,000 NL per 1 L of the raw material oil, wherein the hydrocracking catalyst is produced by a method including stirring a sulfur compound and a cracking catalyst in an aqueous medium to allow liquid-solid separation (step 1); stirring a solid product obtained in the step 1 and a metal component in an aqueous medium to allow liquid-solid separation (step 2); baking a solid product obtained in the step 2 (step 3); and reducing a solid product obtained in the step 3, or reducing a solid product obtained in the step 3, and then subjecting a reduced product to sulfurization treatment (step 4).

Abstract: A process for producing diesel fuel oil from fat and oil comprises producing fatty acid methyl ester for diesel fuel in accordance with transesterification of the fat and oil with methanol, wherein the process further comprises a step of converting glycerol formed as a by-product into methanol, and the obtained methanol is used as a material for the transesterification. In the step of converting glycerol formed as a by-product into methanol, water in an equimolar amount or more to the amount of glycerol is added to glycerol, the obtained mixture is gasified under a pressure of 2 MPa or greater at a temperature of 700° C. or higher to convert the mixture into a gas comprising carbon monoxide and hydrogen, and carbon monoxide and hydrogen are then converted into methanol in accordance with a methanol synthesis process.

Abstract: An object of the present invention is to provide a method for producing an alkyl ester of a fatty acid from a fat or oil, of which main component is a triglyceride, and an alkyl alcohol under mild conditions in a high reaction efficiency, and the alkyl ester of a fatty acid can be effectively utilized as a diesel fuel oil, an industrial raw material or the like, the method further being capable of utilizing on an industrial scale, in which post-treatment steps for removing a catalyst component can be simplified or omitted. For this purpose, the method for producing an alkyl ester of a fatty acid of this invention includes the step of carrying out a transesterification reaction between a fat or oil and an alcohol in the presence of a base catalyst containing calcium oxide, characterized in that the method includes the step of contacting the base catalyst with the alcohol, to carry out an activation treatment thereof in advance of the reaction.

Abstract: A method for producing a fatty acid alkyl ester for diesel fuel oil starting with a fat/oil material such as an edible oil whereby the qualities required of diesel fuel oil can be satisfied and the wastes from the production process can be minimized. The method is characterized by including subjecting a fat/oil material to transesterification with an alcohol, washing with water the oily phase of the reaction mixture, eliminating water after washing via absorption by a high-water-absorptive resin, and then separating the high-water-absorptive resin gel to thereby provide a fatty acid alkyl ester suitable for diesel fuel oil.

Abstract: The present invention relates to a process for preparing an alkyl ester of a fatty acid, including the steps of carrying out an esterification reaction between a free fatty acid contained in a fat or oil and an alcohol; carrying out a transesterification reaction between a fat or oil and an alcohol; and refining an alkyl ester of a fatty acid, wherein at least any one of three steps is carried out in a corresponding step selected from the steps of (a) contacting a fat or oil and an alcohol with a resin foamed article to which a catalyst containing fine strongly acidic particles is supported or a resin foamed article modified to be strongly acidic, and carrying out an esterification reaction between a free fatty acid in the fat or oil and the alcohol; (b) contacting a fat or oil and an alcohol with a resin foamed article to which a catalyst containing fine alkali particles is supported, and carrying out a transesterification reaction between the fat or oil and the alcohol; and (c) contacting a reaction mixture

Abstract: An object of the present invention is to provide a method for producing an alkyl ester of a fatty acid from a fat or oil, of which main component is a triglyceride, and an alkyl alcohol under mild conditions in a high reaction efficiency, and the alkyl ester of a fatty acid can be effectively utilized as a diesel fuel oil, an industrial raw material or the like, the method further being capable of utilizing on an industrial scale, in which post-treatment steps for removing a catalyst component can be simplified or omitted. For this purpose, the method for producing an alkyl ester of a fatty acid of this invention includes the step of carrying out a transesterification reaction between a fat or oil and an alcohol in the presence of a base catalyst containing calcium oxide, characterized in that the method includes the step of contacting the base catalyst with the alcohol, to carry out an activation treatment thereof in advance of the reaction.

Abstract: The present invention relates to a process for preparing an alkyl ester of a fatty acid wherein a transesterification reaction is carried out between a fat or oil and an alcohol in the presence of a catalyst comprising a composite metal oxide having a perovskite structure; and a process for preparing an alkyl ester of a fatty acid wherein a transesterification reaction is carried out between a fat or oil and an alcohol in the presence of a catalyst comprising at least one member selected from the group consisting of oxides, hydroxides and carbonates of alkaline earth metals is used as the catalyst, with the alcohol made into a supercritical state or subcritical state. According to the present invention, the alkyl ester of a fatty acid which can be effectively utilized as a diesel fuel oil or the like can be prepared at high efficiency and on an industrial scale mainly from triglyceride contained in a fat or oil, especially a waste oil.