Abstract: An ultrasonic treatment apparatus according to the present invention includes: a treatment tank capable of containing a treatment object and a treatment liquid for immersing the treatment object; and an ultrasonic application mechanism that applies ultrasonic waves to the treatment liquid, wherein the treatment tank has a long axis where cross-sectional shapes are substantially identical to each other, and a wall surface to a scheduled liquid level height line of the treatment liquid is formed by a concave surface, and the ultrasonic application mechanism is installed at a position where an angle ? formed by a normal line of an oscillation surface of ultrasonic waves and the scheduled liquid level line of the treatment liquid is 5° to 80°.

Abstract: To realize excellent durability of an apparatus, realize a dissolved gas amount suitable for propagation of ultrasonic waves, and stably generate fine bubbles that further comply with a treatment using ultrasonic waves. An ultrasonic treatment apparatus according to the present invention includes: a treatment part capable of accommodating a treatment liquid and an object to be treated; an ultrasonic generator that is provided in the treatment part and applies ultrasonic waves to the object to be treated; and a circulation path for circulating the treatment liquid in the treatment part, in which a fine bubble generator which performs deaeration on an extracted treatment liquid and generates fine bubbles in the treatment liquid, is provided to the circulation path, in series with a treatment liquid extraction pipe.

Abstract: A sliding seismic isolation device includes a structure fixation plate having a first sliding surface and a metallic slider having a second sliding surface contacting the first sliding surface. A friction member composed of a single-layer fabric is attached to the first sliding surface, the second sliding surface, or both of the first sliding surface and the second sliding surface. One of a warp and a weft is formed of multiple plied yarns into which high-strength fibers and PTFE fibers are twisted together and the other of the warp and the weft is formed of multiple high-strength fibers in the single-layer fabric. The single-layer fabric has a twill weave and is woven such that the plied yarns of the one forming the single-layer fabric are exposed at a surface opposite from the attachment side of the friction member more than the high-strength fibers of the other forming the single-layer fabric.

Abstract: To improve propagation performance and uniformity of ultrasonic waves more easily, even when treating multiple treatment objects. An ultrasonic treatment apparatus according to the present invention includes: a treatment tank capable of containing a treatment object and a treatment liquid for immersing the treatment object; and an ultrasonic application mechanism that applies ultrasonic waves to the treatment liquid, wherein the treatment tank has a long axis where cross-sectional shapes are substantially identical to each other, and a wall surface to a scheduled liquid level height line of the treatment liquid is formed by a concave surface, and the ultrasonic application mechanism is installed at a position where an angle ? formed by a normal line of an oscillation surface of ultrasonic waves and the scheduled liquid level line of the treatment liquid is 5° to 80°.

Abstract: According to a certain viewpoint of the present invention, there is provided a blast furnace operation method comprising blowing a high-concentration hydrogen-containing gas containing 80 mol % or more of hydrogen gas from a tuyere under: a condition in which a blowing temperature of the high-concentration hydrogen-containing gas is room temperature or higher and 300° C. or lower and a gas volume of the hydrogen gas in the high-concentration hydrogen-containing gas is 200 Nm3/t or more and 500 Nm3/t or less; a condition in which the blowing temperature of the high-concentration hydrogen-containing gas is higher than 300° C. and 600° C. or lower and the gas volume of the hydrogen gas in the high-concentration hydrogen-containing gas is 145 Nm3/t or more; a condition in which the blowing temperature of the high-concentration hydrogen-containing gas is higher than 600° C. and 900° C. or lower and the gas volume of the high-concentration hydrogen-containing gas is 125 Nm3/t or more, or the like.

Abstract: A blast furnace operation method according to one aspect of the present invention includes: a process of acquiring a correlation between a carbon consumption in reducing gas and a reduction Input?C in specific carbon consumption caused by blowing the reducing gas into the blast furnace per molar ratio C/H of carbon atoms to hydrogen atoms in the reducing gas; a process of determining a carbon consumption in the reducing gas where the reduction Input?C in specific carbon consumption is a predetermined target value or higher on the basis of the correlation acquired per C/H; and a process of adjusting the amount of the reducing gas blown into the blast furnace on the basis of the determined carbon consumption in the reducing gas and the carbon proportion in the reducing gas.

Abstract: Provided are a method for producing carbonate esters, and a catalytic structure for producing carbonate esters, whereby solid catalyst powder formation and detachment are suppressed and superior carbonate ester reaction efficiency is yielded when a catalytic structure constituted by a sufficient quantity of a cerium-oxide-containing solid catalyst supported on a substrate is used. The method for producing carbonate esters includes reacting a monohydric alcohol and carbon dioxide in the presence of a catalytic structure and a hydrating agent. The catalytic structure includes a substrate and a catalytic layer that is formed on at least a portion of the surface of the substrate and contains a solid catalyst and an inorganic binder. The solid catalyst contains cerium oxide. The supported quantity of the solid catalyst is 15 g/m2 to 200 g/m2, inclusive. The inorganic binder contains silica and/or alumina.

Abstract: The present invention provides a novel method for supplying a reducing gas to the shaft part of a blast furnace with which a large amount of reducing gas containing hydrogen at a high concentration can be supplied to a deeper position in the blast furnace (location of the blast furnace closer to the center axis in the radial direction) and with which it is possible to reduce the total generated amount of CO2 of the CO2 amount that is reduced by conducting hydrogen smelting in the blast furnace and the CO2 amount that is generated during production of the reducing gas supplied to the blast furnace. The method for supplying a reducing gas to the shaft part of a blast furnace according to the present invention is characterized by reforming coke oven gas by increasing the temperature thereof to 1200 to 1800° C.

Abstract: Provided is a method for regenerating an aromatic amide compound into a corresponding aromatic nitrile compound, the method realizing a dehydration reaction of providing a target compound selectively at a high yield with generation of a by-product being suppressed. Also provided is a method for producing an aromatic nitrile compound that decreases the number of steps of dehydration reaction and significantly improves the reaction speed at a pressure close to normal pressure. Furthermore, the above-described production method is applied to a carbonate ester production method to provide a method for producing carbonate ester efficiently. The above-described objects are achieved by a method for producing an aromatic nitrile compound including a dehydration reaction of dehydrating an aromatic amide compound, in which the dehydration reaction uses diphenylether.

Abstract: In a method for manufacturing a cable, a filling step S5 of filling a tube hole of a socket main body which is formed in a tubular shape and in which first end portions of wire rods are disposed with a mixture obtained by mixing a thermosetting resin into a preliminary mixture obtained by mixing ceramic particles and fly ash in advance is carried out.

Abstract: There is provided a hydrocarbon distillation separation apparatus for fractionally distilling hydrocarbon compounds discharged from a Fisher-Tropsch synthesis reactor synthesizing hydrocarbon compounds, comprising a heavy hydrocarbon fractionator configured to fractionally distil liquid heavy components of the hydrocarbon compounds discharged from the reactor into a first middle distillate and a wax fraction, a light hydrocarbon fractionator configured to fractionally distil gaseous light components of the hydrocarbon compounds discharged from the reactor into a second middle distillate and a light gas fraction, a light hydrocarbon separator configured to separate hydrocarbon compounds equivalent to naphtha from the light gas fraction; and a mixing section configured to mix the first and second middle distillates, and the hydrocarbon compounds equivalent to naphtha separated from the light gas fraction by the light hydrocarbon separator.

Abstract: A liquid-fuel synthesizing method includes a synthesizing step of synthesizing liquid fuels by making a synthesis gas including a carbon monoxide gas and a hydrogen gas as the main components and a slurry having solid catalyst particles suspended in a liquid react with each other in a reactor, and a synthesis gas supply step of supplying the synthesis gas to the reactor from a plurality of supply devices provided in the reactor so as to have different heights.

Abstract: A startup method for a fractionator that is supplied with, and fractionally distills, a hydrocracked product obtained in a wax fraction hydrocracking step by hydrocracking a wax fraction contained within a Fischer-Tropsch synthetic oil, the method including a preheating step of preheating the fractionator using a hydrocarbon oil that includes at least a portion of the hydrocracked product and is liquid at a normal temperature and normal pressure.

Abstract: A catalyst for F-T synthesis which exhibits high activity, long life, and high water resistance without deteriorating strength and attrition resistance is disclosed. A method for producing such a catalyst, a method for regenerating such a catalyst, and a method for producing a hydrocarbon by using such as catalyst are also disclosed. Specifically, a catalyst for producing a hydrocarbon from a syngas, wherein cobalt metal, or cobalt metal and cobalt oxides; and zirconium oxides are supported by a catalyst support mainly composed of silica, is disclosed. This catalyst is characterized in that the content of impurities of the catalyst 0.01 mass % to 0.15 mass %. Specifically, a method for producing such a catalyst, a method for regenerating such a catalyst, and a method for producing a hydrocarbon by using such a catalyst are also disclosed.

Abstract: A synthesis reaction system is provided with: a reactor which synthesizes a hydrocarbon compound by a chemical reaction of a synthesis gas including hydrogen and carbon monoxide as main components, and a slurry having solid catalyst particles suspended in liquid; a separator which separates the hydrocarbon compound from the slurry; and a filtering device which filters the hydrocarbon compound extracted from the separator to trap powdered catalyst particles.

Abstract: A catalyst separation system which separates catalyst particles from liquid hydrocarbons synthesized by a chemical reaction of a synthesis gas including a hydrogen and a carbon monoxide as the main components, and a slurry having solid catalyst particles suspended in a liquid, the catalyst separation system is provided with: a reactor; a storage tank which stores the slurry drawn from the reactor; a plurality of filters which filters the slurry; and a filtrate recovery vessel which recovers a filtrate which has passed through the plurality of filters, wherein the plurality of filters is disposed in series in a flow line for the slurry from the storage tank to the filtrate recovery vessel.

Abstract: A hydrocarbon synthesis reaction apparatus synthesizes hydrocarbons by a Fischer-Tropsch synthesis reaction. The apparatus includes a reactor; a flowing line; a first cooling unit; a second cooling unit; a first separating unit which separates the liquid hydrocarbons condensed by the first cooling unit from the gaseous hydrocarbons; and a second separating unit which separates the liquid hydrocarbons condensed by the second cooling unit from the gaseous hydrocarbons. The first cooling unit cools the hydrocarbons which flow through the flowing line to a temperature range equal to or lower than a condensing point at which a wax fraction condenses, and higher than a freezing point at which the wax fraction solidifies. The second cooling unit cools the hydrocarbons which flow through the flowing line to a temperature range lower than the temperature to which the gaseous hydrocarbons are cooled by the first cooling unit, and higher than a freezing point at which a middle distillate solidifies.

Abstract: It is avoided that the sulfur compounds originating from the castable is mixed into produced synthesis gas, the mixed sulfur compounds are separated and collected with carbon dioxide, the collected carbon dioxide is recycled as raw material gas and then the sulfur compounds is directly supplied to the reformer to consequently degrade the reforming catalyst in the reformer by sulfur poisoning. The carbon dioxide separated and collected in the carbon dioxide removal step is introduced into the desulfurization apparatus of the desulfurization step or the sulfur compounds adsorption apparatus before being recycled to the reformer to remove the sulfur compounds.

Abstract: A process for hydrotreating a naphtha fraction that includes a step of estimating the difference between the naphtha fraction hydrotreating reactor outlet temperature and inlet temperature, based on the reaction temperature of the Fischer-Tropsch synthesis reaction and the ratio of the flow rate of the treated naphtha fraction returned to the naphtha fraction hydrotreating step relative to the flow rate of the treated naphtha fraction discharged from the naphtha fraction hydrotreating step, a step of measuring the difference between the naphtha fraction hydrotreating reactor outlet temperature and inlet temperature, and a step of adjusting the reaction temperature of the naphtha fraction hydrotreating step so that the measured difference between the naphtha fraction hydrotreating reactor outlet temperature and inlet temperature becomes substantially equal to the estimated difference between the naphtha fraction hydrotreating reactor outlet temperature and inlet temperature.

Abstract: 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.