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.

Abstract: Provided is a technology of searching for operation guidance for efficiently operating a liquefied natural gas plant. An operation guidance searching method for a liquefied natural gas plant includes: acquiring data sets of operation data of process variables for a plurality of target devices and disturbance data; generating, through machine learning, a plant model indicating correspondences of output values of process variables with respect to manipulated variables and input values of disturbances; and searching, through reinforcement learning, for input values of the manipulated variables operation variables for with which a compression power per unit production amount is minimized under a condition in which an outlet temperature of a liquefied natural gas is a preset restriction temperature or lower.

Abstract: Provided is a technique for continuously performing poor solvent crystallization or reactive crystallization. A porous membrane in which multiple pores through which a liquid passes are formed internally partitions the treatment container into a first flow space and a second flow space. A raw material liquid supply unit continuously supplies a raw material liquid to the first flow space. A treatment liquid supply unit continuously supplies a treatment liquid to the second flow space at a pressure at which the treatment liquid passes through the porous membrane and enters the first flow space. An extraction unit continuously extracts a mixed liquid of the raw material liquid and the treatment liquid from the first flow space. An aging unit precipitates and grows crystals of a target substance from a mixed liquid.

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.

Abstract: Provided is a project management apparatus including: a first acquisition unit configured to acquire an on-site image obtained by photographing a construction site in which an installation object is to be constructed; a second acquisition unit configured to acquire engineering model data on each of a plurality of components forming the installation object; a display control unit configured to display, on a display apparatus, a composite image obtained by superimposing the engineering model data on the on-site image; and a reception unit configured to receive an operation of a user, wherein the display control unit is configured to display, based on the operation performed on the composite image by the user, a display screen for causing the user to input information relating to progress of a work unit containing a work of a component corresponding to the engineering model data selected by the user, on the display apparatus.

Abstract: Carbon dioxide gas in a high-pressure gas to be treated is stably separated using a separation membrane. Upon separating carbon dioxide gas in a high-pressure gas to be treated using a separation membrane module including a separation membrane, a preliminary boosted gas is supplied to the separation membrane module before the supply of natural gas is started to boost a pressure on a primary side of the separation membrane to a preliminary pressure between a stand-by pressure and an operating pressure. Thus, when the supply of a high-pressure gas to be treated is started to increase the pressure of the separation membrane module to an operating pressure, an abrupt decrease in temperature of the gas to be treated can be suppressed.

Abstract: The alignment method includes: an acquisition step of acquiring a first two-dimensional image data group on a acquired first target object, and acquiring a second two-dimensional image data group on a acquired second target object; a conversion step of converting the first two-dimensional image data group into first three-dimensional image data, and converting the second two-dimensional image data group into second three-dimensional image data; a designation step of designating the target serving as an origin in each of images based on the first three-dimensional image data and the second three-dimensional image data; a setting step of setting three-dimensional coordinates with respect to the origin in the first and second three-dimensional image data through use of information on the origin designated in the designation step; and a position examination step of examining positions of the corresponding targets in the first three-dimensional image data and the second three-dimensional image data.

Abstract: To regenerate, by a simple method, an inorganic separation membrane separating non-hydrocarbon gas contained in treatment target gas. Provided in separating the non-hydrocarbon gas contained in the treatment target gas is a regeneration gas supply path supplying moisture-containing regeneration gas to a primary side of the inorganic separation membrane in a separation membrane module. As a result, it is possible to regenerate the inorganic separation membrane by supplying moisture-containing CO2 gas to the inorganic separation membrane and then supplying dry natural gas. Accordingly, there is no need to use dry regeneration gas and the CO2 gas supplied via, for example, a pipeline can be used as it is.

Abstract: To provide a plant construction module that is easily manufactured and easily transported. Provided is a plant construction module (10) for a plant configured to process fluid, the plant construction module including: a plant structural part (3, 12) including a pipe structural part (3) serving as a piping through which the fluid flows, a processing-unit structural part (21) serving as a processing unit configured to process the fluid to be transferred into/from the processing unit through the piping; and a frame unit (11), which has a contour enabling the frame unit to be arranged in a horizontal direction, or to be stacked in an up-and-down direction, wherein the plant structural part (3, 12) and the frame unit (11) have an integrated structure.

Abstract: To reduce work at an installation site when a plant facility is manufactured, modules are conveyed in order from a fabrication yard to the installation site, and expansion and contraction amounts of pipe spools are calculated based on a temperature difference between a temperature at the fabrication yard when the modules are manufactured and a temperature at the installation site when the modules are installed at the installation site. Further, an installation position of a foundation is adjusted toward a direction to cancel out the expansion and contraction amounts of the plurality of pipe spools, and the pipe spool is moved toward the direction to cancel out the expansion and contraction amounts of the plurality of pipe spools. The modules are installed with the positions of the end portions of the pipe spools being adjusted.

Abstract: A method of recovering a sugar by separating a fermentation inhibitor and the sugar from a sugar solution containing the fermentation inhibitor, the method including: bringing the sugar solution containing the fermentation inhibitor into contact with a basic anion exchange resin filled into a column, followed by separation of the fermentation inhibitor and the sugar by a difference in retention time therebetween through use of water as an eluent, and separate recovery of a fraction containing the fermentation inhibitor and a fraction containing the sugar, wherein the basic anion exchange resin is previously treated with a solution containing the fermentation inhibitor.

Abstract: A clustering method includes the steps of: creating a plant model in which connection relationships between a plurality of devices (31) forming a processing plant (1) and pipes (4) are represented by a graph showing a linking relationship between a node (51) and an edge (52); setting, regarding the plant model, a cluster division condition; and performing, by a computer, the cluster division of the plant model by searching for an edge between the clusters in which modularity is further increased while the cluster division condition is satisfied.

Abstract: For device groups (3) each including devices (31) included in a processing plant (1) processing fluid and each having an occupied area (30) set therefor, connection information representing two specific device groups (3) are connected and paired via a pipe (4) and pipe information required for calculating use amount of a pipe material are set. Then, a first step, including arranging the device groups (3) in an installation area (10) of the processing plant (1) so that an outer edge of the occupied area (30) and a long side of a pipe-rack arrangement area (20) contact with each other, and a second step, including calculating a total use amount of the pipe material of the pipe (4) supported by a pipe rack (21, 22, 23), are repeated. From results obtained by changing the arrangement of the device groups (3), arrangements having small total use amounts of pipe materials are selected.

Abstract: The plant control method includes the following. Calculating a first reference amount to be supplied for an amount of hydrogen to be supplied to a second production device (40). Making a decision on whether or not the amount of remaining hydrogen in a storage device (20) at the beginning of a subject term falls within a reference range.

Abstract: A structure for an offshore plant has a plurality of module portions mounted on a structure body in which a storage tank for storing liquefied natural gas is installed. A pump opening serving as the inlet/outlet of a pump for pumping up the liquefied natural gas from the storage tank is formed in the structure body, and the pump opening is disposed between the module portions adjacent to each other.

Abstract: Provided is a technology of preventing an increase in size of a treatment plant, which may be caused when a safety clearance for the prevention of spread of a fire is set, and restraining an increase in designed fire-extinguishing water usage. A treatment plant for handling a flammable liquid includes: an equipment placement region in which a plurality of equipments configured to handle the flammable fluid are placed, the equipment placement region being divided into four or more firewater supply sections. A plurality of fire-extinguishing water supply facilities are provided to the firewater supply sections, respectively, the fire-extinguishing water supply facilities each being capable of, when a fire occurs in the firewater supply sections, simultaneously supplying fire-extinguishing water to a fire-occurrence section and an adjacent section.

Abstract: To reduce work at an installation site when a plant facility is manufactured, modules are conveyed in order from a fabrication yard to the installation site, and expansion and contraction amounts of pipe spools are calculated based on a temperature difference between a temperature at the fabrication yard when the modules are manufactured and a temperature at the installation site when the modules are installed at the installation site. Further, an installation position of a foundation is adjusted toward a direction to cancel out the expansion and contraction amounts of the plurality of pipe spools, and the pipe spool is moved toward the direction to cancel out the expansion and contraction amounts of the plurality of pipe spools. The modules are installed with the positions of the end portions of the pipe spools being adjusted.

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: Provided is a work management apparatus including: a display control unit configured to display on a display apparatus a permit to work for a work package, which is a work unit for constructing a construction object; a registration unit configured to register one or more workers in the work package; a first acquisition unit configured to acquire work duration information indicating a work duration that has been required to complete the work package; a generation unit configured to generate work record information including identification information on the work package and the work duration information; and an output unit configured to output the work record information.

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.