Abstract: A natural gas pretreatment system includes: a carbon dioxide removal unit configured to remove carbon dioxide from the natural gas by bringing an absorption liquid and the natural gas into contact with each other; and a water removal unit configured to remove water by causing the natural gas to flow through a packed bed containing a water adsorbent. The packed bed contains a carbon dioxide adsorbent for adsorbing and removing the carbon dioxide that has not been completely removed in the carbon dioxide removal unit, and a concentration of the carbon dioxide contained in the natural gas is measured by an outlet-side carbon dioxide measurement unit on an outlet side of the water removal unit.

Abstract: A calculation unit acquires first to third prices that are sales unit prices of a first product, a second product, and power generated by a power generation device. Based on at least one of the first to third prices, the calculation unit determines a first supply amount of the first product to a sales means, a second supply amount of the first product to a second manufacturing device, and a third supply amount of the first product to the power generation device. A control signal output unit outputs a control signal such that the first product is supplied to the sales means at the determined first supply amount, the first product is supplied to the second manufacturing device at the determined second supply amount, and the first product is supplied to the power generation device at the determined third supply amount.

Abstract: Provided is a method of constructing a foundation for a structural body, the foundation including a footing and a pedestal, the method including: a formwork formation step of forming, from concrete or mortar, a formwork being an integrated formwork for the footing and the pedestal by using a 3D printer, and a supplying step of supplying concrete into the formwork. The formwork has such a shape that a horizontal sectional area decreases from the footing toward the pedestal.

Abstract: Provided is a technology for efficiently arranging equipment. A method of arranging equipment in a plant for processing a fluid includes: calculating a risk; obtained by multiplying a probability that flowing-out of a fluid requiring use of the equipment occurs by an impact degree of the flowing-out of the fluid; setting a distance of a range in which the equipment is arrangeable so that, when the calculated risks of a plurality of devices are compared with each other, the range in which the equipment is arrangeable is shorter for a device for which the risk is high, and the range is longer for a device for which the risk is low; and then determining a position to arrange the equipment based on positions at which the plurality of devices are arranged in the plant, and on the distance of the range in which the equipment is arrangeable.

Abstract: Provided is an operation analysis method for a production plant (1), including: acquiring, with use of a Doppler LIDAR (5), a distribution of three-dimensional wind condition data at positions of an upper space of the production plant (1) and a surrounding space thereof including an arrangement region for an air-cooled heat exchanger (2); acquiring environment data indicating a state of a natural environment that affects operation of the air-cooled heat exchanger (2); and learning, through a numerical analysis with use of a computer, based on a distribution of the three-dimensional wind condition data and on the environment data, a correspondence between a distribution pattern of the three-dimensional wind condition data and the environment data.

Abstract: In a nondestructive inspection of a defect of a welded portion of a pipe or a pipe member, work efficiency of a radiation transmission test is improved by reducing a burden on a worker, and an inspection accuracy is improved. Imaging data is acquired by transmitting radiation through a welded portion of the pipe to be inspected. Processing of associating determination data indicating a result of determining a defect of the welded portion of the pipe to be inspected based on a distribution of a transmission intensity of the radiation obtained from the imaging data with image data showing the distribution of the transmission intensity of the radiation is performed. As a result, through use of the imaging data, image data and determination data associated with the image data can be obtained, and the burden on the worker can be reduced.

Abstract: An operation analysis method for a natural gas plant includes: acquiring production amount data of a product per unit time and operation data of a plurality of controlled devices forming the natural gas plant in association with each other along a time series; determining whether or not a controlled device that violates the operation constraint is present at the time point of acquisition of the production amount data when the production amount data is less than the reference production amount, and performing data processing of associating an item subjected to the operation constraint to the production amount data; and determining, for each of the items subjected to the operation constraints, a length of a period with the production reduction in accordance with a magnitude of the production reduction amount.

Abstract: In a method of operating an adsorption apparatus including a plurality of adsorption beds each packed with a physical adsorbent, when an adsorption step is performed in a part of the adsorption beds and another adsorption bed is to be regenerated, after the adsorption target component adsorbed on the physical adsorbent is desorbed, a gas for cooling is caused to flow through the another adsorption bed so that the another adsorption bed is cooled until an outlet temperature of the another adsorption bed reaches a temperature set in advance. Further, the cooled adsorption bed stands by for switching to the adsorption step while a gas for standby for maintaining a cooled state is caused to flow through the cooled adsorption bed.

Abstract: A CO2 cycle power generation unit including a power generation turbine using a CO2 fluid as a drive fluid, a CO2 first compression device pressurizing the CO2 fluid after driving the power generation turbine, and a combustor combusting a light hydrocarbon gas containing methane as fuel using oxygen supplied from an air separation device in a state of mixing the pressurized and heated CO2 fluids, wherein a combustion gas obtained by the combustor is supplied to the power generation turbine as a drive fluid, and a CO2 recovery unit recovering CO2 from an exhaust gas emitted by fuel combustion in an external combustion unit. A part of the CO2 fluid emitted from the CO2 cycle power generation unit and CO2 recovered by the CO2 recovery unit are supplied to a CO2 reception unit. Energy obtained by the CO2 cycle power generation unit is supplied to the CO2 recovery unit.

Abstract: A natural gas liquefying apparatus is provided. At least a part of a cooling region, in which a precooling unit and a liquefaction unit are arranged, and at least a part of a compression region, in which first and second compressors compressing refrigerants to be used in the precooling unit and the liquefaction unit are arranged, are arranged to be opposed to each other across a long side of a second refrigerant cooler group arrangement region in which a liquefying refrigerant is cooled. A first refrigerant cooler group arrangement region, in which a precooling refrigerant is cooled, is arranged so that a long side of the first refrigerant cooler group arrangement region is opposed to one side of a rectangular region including the compression region, the one side being different from a side of the rectangular region opposed to a long side of the second refrigerant cooler group arrangement region.

Abstract: A calculation unit acquires first to third prices that are sales unit prices of a first product, a second product, and power generated by a power generation device. Based on at least one of the first to third prices, the calculation unit determines a first supply amount of the first product to a sales means, a second supply amount of the first product to a second manufacturing device, and a third supply amount of the first product to the power generation device. A control signal output unit outputs a control signal such that the first product is supplied to the sales means at the determined first supply amount, the first product is supplied to the second manufacturing device at the determined second supply amount, and the first product is supplied to the power generation device at the determined third supply amount.

Abstract: Provided is a welding data processing device that enables effective use of findings derived from a welding execution record and a result of judgment of whether there is a weld defect. A welding data processing device includes a welding process registration module which registers, for each weld point, a welding condition and a welding execution record in a welding process performed under the welding condition in a welding process database, an inspection process registration module which registers, for each weld point, defect judgment data indicating a result of judgment of whether a weld defect exists at the weld point based on image data of the weld point acquired in a radiographic test process in an inspection process database, and an information processing module which performs predetermined processing based on information registered in the welding process database and the inspection process database.

Abstract: To provide a non-destructive inspection judgment data management device with which the workability of a judge is improved and a burden on a client of a judgment task is reduced, the device includes: a first database registration module which registers image data of a weld point in a first database; a second database registration module which registers judge information on a judge undertaking a judgment task of judging whether a weld defect is present at the weld point based on the image data, in a second database; and an access control module which allows, based on contract information indicating a contract for the judgment task has been established with the judge selected as a contractor of the judgment task among the judges registered in the second database, the contractor to access the image data related to the judgment task in the image data registered in the first database via Internet.

Abstract: Provided is a technology for executing information processing with respect to a risk calculated in order to grasp a frequency at which an accident occurs in equipment included in a plant, in a manner that facilitates utilization in safety management of operation of the plant. With regards to processing of maintenance management information of a plant for processing fluid, a plan view of the plant is displayed divided into a plurality of blocks, based on risks of a plurality of accidents assumed to have a possibility of occurring in a plurality of pieces of equipment included in the plant. The plan view is displayed on a monitor with assessment information indicating a result of assessing a risk level attached to each of the blocks. A three-dimensional image about equipment included in a block selected from the plurality of blocks is further displayed on the monitor.

Abstract: Provided is a plant for generating resources from soil on a lunar surface, including: a water extraction unit configured to extract water from a water-containing regolith in the soil; an electrolyzing unit configured to generate hydrogen and oxygen by electrolysis of water; and a reducing unit configured to reduce metal oxide contained in the soil with hydrogen.

Abstract: An ammonia manufacturing apparatus includes: an ammonia synthesis unit synthesizing ammonia under a chemical reaction using hydrogen and nitrogen as a raw material gas in a reactor; and a heat storage unit including a heating medium. The heat storage unit can supply heat from the heating medium to the ammonia synthesis unit when an amount of the raw material gas supplied to the ammonia synthesis unit increases.

Abstract: Liquid hydrogen is produced while reducing emission of carbon dioxide to the atmosphere. Provided is a liquid hydrogen production device including: a carbon dioxide cycle plant (2), which includes a turbine (23) using a carbon dioxide fluid as a driving fluid, and is configured to drive the turbine (23) to generate motive power with use of a carbon dioxide cycle in which the carbon dioxide fluid discharged from the turbine (23) is increased in pressure and heated and is then re-supplied to the turbine (23); and a liquefaction plant (4) configured to cool gaseous hydrogen by heat exchange with a refrigerant, to obtain liquid hydrogen. The motive power generated by driving of the turbine (23) is used as motive power to be consumed in the liquefaction plant (4).

Abstract: A natural gas liquefying apparatus includes: a precooling unit, which is a treatment unit configured to precool natural gas; a liquefying unit, which is a treatment unit configured to liquefy the natural gas; a refrigerant cooling unit, which is a treatment unit configured to cool a liquefying refrigerant; a compression unit configured to compress vaporized refrigerants; and a pipe rack including air-cooled coolers arrayed and arranged on an upper surface. The treatment units and the compression unit are separately arranged in a first arrangement region and a second arrangement region arranged opposed to each other across a long side of the pipe rack. The pipe rack interposed between the first and second arrangement regions has a region in which no air-cooled cooler is arranged in order to arrange a plurality of pipes, through which refrigerants are allowed to flow, in a direction of a short side of the pipe rack.

Abstract: The present zinc recovery method is characterized in including a dissolving process of treating a raw material containing zinc with an alkaline fluid at a temperature equal to or higher than 100° C. to dissolve zinc contained in the raw material, and a recovering process of recovering zinc extracted from the raw material by the dissolving process.

Abstract: Provided is a method of designing a heat exchanger group being installed in a processing plant and having multiple ACHEs. In a first step, at least one design variable relating to ACHE design and the number of installed ACHEs are set as variable parameters, and a variable range and a change unit of each of the variable parameters are set. In a second step, a design value of the ACHE, which includes a value of a design variable non-selected as the variable parameter, is set. In a third step, Pareto solutions for at least two objective functions selected from an objective function group consisting of an installation length of the heat exchanger group, a total heat transfer area of heat transfer tubes, and total power consumption of fans are calculated by using a computer while the variable parameter are changed.