Abstract: A process for producing a kerosene base fuel according to the present invention comprises removing paraffins having carbon number of 7 or less from a first fraction having an initial boiling point of 95 to 140° C. and a final boiling point of 240 to 280° C. obtained from a hydrotreated oil of a Fischer-Tropsch synthetic oil to obtain a second fraction having a content of paraffins having carbon number of 7 or less of 0.1 to 0.7% by mass.

Abstract: A mooring method includes the steps of: transporting a mooring member having a mooring cable which can be connected to a float at one end and an accommodation member installed at the other end of the mooring cable and has an accommodation space therein to a mooring position of the float; accommodating a first heavy weight in at least a part of the accommodation space of the accommodation member at the mooring position; connecting the one end of the mooring cable to the float at the mooring position after the accommodation step; and accommodating a second heavy weight in the accommodation space of the accommodation member by adding the second heavy weight to the first heavy weight or exchanging at least part of the first heavy weight with the second heavy weight at the mooring position after the connection step.

Abstract: In the hydrocarbon-producing apparatus, a vapor-liquid separation tank of a second vapor-liquid separation unit is provided with a filling material layer. A vapor-liquid separation tank of the first vapor-liquid separation unit has a first return line. The vapor-liquid separation tank of the second vapor-liquid separation unit has a second return line. A light component of light oil discharged from a bottom of the vapor-liquid separation tank is returned to a portion between a top side above a return-location from the second return line within the vapor-liquid separation tank of the second vapor-liquid separation unit, and a line directly connected with a cooler installed on the first vapor-liquid separation unit through the first return line. A heavy component of light oil discharged from a bottom of the vapor-liquid separation tank of the second vapor-liquid separation unit is returned to the filling material layer through the second return line.

Abstract: The present invention includes a reactor main body (4) that is formed into a tubular shape having an axis (O) as the center and accumulates a slurry (S); a gas supply line (10) for incorporating a synthesis gas (G) into the reactor main body (4), and a sparger part (5) that is disposed in a lower portion within the reactor main body (4), communicates with the gas supply line (10), and sprays the synthesis gas (G). The sparger part (5) includes a header tube (15) in which a plurality of openings are formed so as to be separated from each other in a first direction and which sprays the synthesis gas (G) from the openings, and a pair of wall surface parts that protrude from the header tube (15), on opposing sides of the plurality of openings and in a direction orthogonal to the first direction.

Abstract: Provided are a buckling restrained brace including a core material that has a plate shape and extends along an axis, a restraining member that extends along the axis and covers the core material from an outer peripheral side in a state where both end portions of the core material in an axis direction protrude outside, a filler that is filled between the restraining member and the core material, and a pair of first reinforcing members that each have a plate shape and are installed in both end portions of the core material in the axis direction so as to interpose the core material therebetween from both sides of the core material in a plate width direction, and a load-bearing structure installed with the buckling restrained brace.

Abstract: [Problem] To provide an alcoholic fermentation yeast having resistance to limonene, which is a fermentation inhibitor, and a method for producing ethanol using the alcoholic fermentation yeast. [Solution] An alcoholic fermentation yeast Saccharomyces cerevisiae (Deposition No. NITE BP-890), which has resistance to limonene and can grow in the presence of limonene at a concentration of 0.1-0.5 wt %, and a method for producing ethanol using the alcoholic fermentation yeast.

Abstract: Provided is a high-performance sliding seismic isolation device with a slider that realizes a contact pressure of 60 MPa. The device includes an upper shoe 1 and a lower shoe (2) having sliding surfaces 1a and 2a with curvatures, respectively; and a columnar steel slider (7) disposed between the upper shoe (1) and the lower shoe (2), the slider having an upper surface 4a and a lower surface 4b that are in contact with the upper and lower shoes, respectively, and have curvatures. The upper surface 4a and the lower surface 4b of the slider (7) have double-woven fabric layers (5) and (6), respectively, each double-woven fabric layer containing PTFE fibers and fibers with higher tensile strength than that of the PTFE fibers, and the PTFE fibers being arranged on the sides of the sliding surfaces 1a and 2a of the upper shoe (1) and the lower shoe (2).

Abstract: Hydrocarbon oil obtained by Fischer-Tropsch (FT) synthesis reaction using a catalyst within a slurry bed reactor is fractionated into a distilled oil and a column bottom oil in a rectifying column, part of the column bottom oil is flowed into a first transfer line that connects a column bottom of the rectifying column to a hydrocracker, at least part of the column bottom oil is flowed into a second transfer line branched from the first transfer line and connected to the first transfer line downstream of the branching point, the amount of the catalyst fine powder to be captured is monitored while the catalyst fine powder in the column bottom oil that flows in the second transfer line are captured by a detachable filter provided in the second transfer line, and the column bottom oil is hydrocracked within the hydrocracker.

Abstract: Provided is a retrofitting structure for existing building that does not require the addition of a foundation specific to the retrofitting structure, can implement seismic retrofitting at any floors only of the existing building, and hardly causes a large drawing force resulting from eccentric bending moment that may act on the seismic retrofitting structure. A retrofitting structure 100 for existing building includes: a reinforcing frame 10 including a frame member 11 and a vibration control member 12 interposed in the frame member, the reinforcing frame being provided on an outer wall surface of an existing building B having an overhang T on the outer wall surface so as to surround the overhang T; and a vertical truss member 30 and a horizontal truss member 20 configured to couple the reinforcing frame 10 and the outer wall surface.

Abstract: There is provided a top-firing hot blast stove including a burner and a burner duct capable of stabilizing an ignition point at a desired position inside the burner duct and suppressing occurrence of blinking phenomenon so as to achieve high combustion efficiency. A top-firing hot blast stove 10 includes a checker chamber 4 and a combustion chamber 3 which includes a burner system and placed above the checker chamber 4.

Abstract: 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.

Abstract: Hydrocarbon oil obtained by Fischer-Tropsch (FT) synthesis reaction using a catalyst within a slurry bed reactor is fractionated into a distilled oil and a column bottom oil in a rectifying column, part of the column bottom oil is flowed into a first transfer line that connects a column bottom of the rectifying column to a hydrocracker, at least part of the column bottom oil is flowed into a second transfer line branched from the first transfer line and connected to the first transfer line downstream of the branching point, the amount of the catalyst fine powder to be captured is monitored while the catalyst fine powder in the column bottom oil that flows in the second transfer line are captured by a detachable filter provided in the second transfer line, and the column bottom oil is hydrocracked within the hydrocracker.

Abstract: A carbon dioxide gas recovery device is provided which includes an absorption tower causing an absorbent to absorb carbon dioxide gas to generate a rich absorbent and a regeneration tower regenerating a lean absorbent by heating the rich absorbent to separate carbon dioxide gas therefrom. The regeneration tower includes a reboiler system heating the absorbent led out from the regeneration tower and reintroducing the heated absorbent into the regeneration tower and a mixed gas cooling system cooling a mixed gas led out from the regeneration tower, condensing a vapor fraction of a solute and a solvent, reintroducing the condensed vapor fraction into the regeneration tower, and discharging carbon dioxide gas. The carbon dioxide gas recovery device further includes a heat pump as a heat source of an endothermic reaction in which carbon dioxide gas is separated from the rich absorbent in the regeneration tower.

Abstract: A method for operation of a blast furnace able to greatly reduce the CO2 emission and enabling stable production of pig iron over a long period of time in a commercial blast furnace, that is, a method for operation of a blast furnace in which iron ore and coke are charged from a furnace top and is blown in pulverized coal from a usual tuyere, comprising blowing in a gas containing at least one of hydrogen and hydrocarbon from the usual tuyere together with the pulverized coal and blowing a gas comprised of a top gas of the blast furnace from which carbon dioxide and steam is removed from a shaft tuyere into the blast furnace.

Abstract: The present invention provides a method for producing a hydrocarbon oil, including performing a hydrocracking by continuously feeding, to a hydrocracking reactor containing a hydrocracking catalyst, a wax to be processed including: a raw wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360° C; and an uncracked wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360° C, which uncracked wax is separated from a hydrocracking product discharged from the reactor, to thereby yield a hydrocarbon oil including hydrocarbons with a boiling point of 360° C or lower.

Abstract: The hydrotreating catalyst of the present invention is a hydrotreating catalyst including a catalyst support including an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the hydrotreating catalyst contains a carbonaceous substance including a carbon atom, and the content of the carbonaceous substance in the hydrotreating catalyst is 0.05 to 1% by mass in terms of the carbon atom.

Abstract: Provided is a multiplex pipe and a system for recovering steam from a geothermal well, which are capable of solving all of the various problems with a neutralization pipe prepared by painting or the like of an alkali-resistant coating on the inner face of an acid-resistant single pipe. A multiplex pipe 10 that is configured to recover steam from a geothermal well GT, includes: a casing pipe 1 located outside; and a duplex pipe 4 that is slidable relative to the casing pipe 1 in the casing pipe 1, and has a first gap 5 with an inner face of the casing pipe 1, the duplex pipe including an outer pipe 2 having acid-resistance and an inner pipe 3 having alkali-resistance, the outer pipe 2 and the inner pipe 3 defining a second gap 6 therebetween.

Abstract: Means for Solving the Problem According to an aspect of the present invention, there is provided a magnetic-separation filter device that removes contaminants of fine ferromagnetic particles from a fluid containing such contaminants, comprising: a substantially cylindrical housing; two partition plates that are disposed in an inside of the housing so as to extend in a vertical direction of the housing, dividing the inside of the housing by being disposed in parallel to each other; a filter medium that includes a fine amorphous-alloy wire bundle filled in a first region defined by the housing and the two partition plates; and plural permanent magnets that are provided on both sides of the first region outside the housing, wherein the contaminants of fine ferromagnetic particles are adsorbed on the filter media by flowing the fluid containing such contaminants through the first region in which the magnetic field has been formed by these plural permanent magnets.

Abstract: A Fischer-Tropsch synthesis reaction catalyst includes a catalyst support containing a silica and zirconium oxide in an amount of 0.5 to 14% by mass based on the mass of the catalyst support, and cobalt metal and a cobalt oxide supported on the catalyst support in an amount equivalent to 10 to 40% by mass of tricobalt tetroxide based on the mass of the catalyst, wherein the degree of reduction of the cobalt atoms is within a range from 75 to 93%, and the amount of hydrogen gas adsorption per unit mass of the catalyst at 100° C. is within a range from 0.40 to 1.0 ml/g.

Abstract: A synthesis gas production apparatus (reformer) to be used for a synthesis gas production step in a GTL (gas-to-liquid) process is prevented from being contaminated by metal components. A method of suppressing metal contamination of a synthesis gas production apparatus operating for a GTL process that includes a synthesis gas production step of producing synthesis gas by causing natural gas and gas containing steam and/or carbon dioxide to react with each other for reforming in a synthesis gas production apparatus in which, at the time of separating and collecting a carbon dioxide contained in the synthesis gas produced in the synthesis gas production step and recycling the separated and collected carbon dioxide as source gas for the reforming reaction in the synthesis gas production step, a nickel concentration in the recycled carbon dioxide is not higher than 0.05 ppmv.