Chiyoda Corporation

[Problem] To selectively hydrocrack a cyclic compound having a five-membered ring structure included in an aromatic compound used as a hydrogen carrier. [Solution] A zeolite composite catalyst used for hydrocracking a cyclic compound having a five-membered ring structure, the five-membered ring structure being included in an aromatic compound used as a hydrogen carrier, wherein the zeolite composite catalyst comprises aluminum or gallium, and wherein the zeolite composite catalyst comprises a zeolite with an MFI structure, and silica as a binder.

[Problem] To provide a method for creating a machine learning model that allows for a quick and accurate estimation of a state of a fluid in a tank. [Solution] The method for creating a machine learning model for estimating a state of a fluid in a tank, wherein the fluid contains a plurality of substances, the method comprising: creating a plurality of parameter sets, each set comprising tank information including at least a shape and size of the tank, operating conditions of the tank, and substance information including at least an amount, and one or more physical properties of each of the plurality of substances, wherein the plurality of parameter sets are created by varying the parameters of the operating conditions and the substance information; performing a numerical fluid dynamics analysis based on the plurality of parameter sets to provide a plurality of calculation results based on fluid information including distributions of physical quantities related to the fluid and/or an amount of each of the plurality of substances; and creating the machine learning model by a machine learning operation which involves training the machine learning model with teaching data including the plurality of parameter sets and the corresponding plurality of calculation results.

The method is for producing para-xylene using, as a main raw material, a mixed gas of carbon dioxide or carbon monoxide or both thereof and hydrogen. The method including: a reaction step of bringing a raw material mixed gas including the mixed gas into contact with a reaction catalyst under high temperature and high pressure to cause a reaction, to thereby obtain a product gas mixture containing para-xylene; a separation step of cooling the product gas mixture obtained in the reaction step to condense a high boiling point component, to thereby separate the product gas mixture into a water phase containing a water-soluble component, an oil phase containing a xylene mixture, and a gas phase containing an unreacted gas; and a circulation step of mixing at least part of the gas phase having been separated in the separation step into the raw material mixed gas.

A method for supporting development of a model related to operation of a plant facility is executed by a processor and includes: acquiring facility identification information of the plant facility or process identification information of a process executed in the plant facility; acquiring target output information of the model; and outputting a processing element list including a processing element that is to constitute a development process of the model, based on the facility identification information or the process identification information and the target output information.

[Problem] To perform selective hydrogenolysis of a cyclic compound that has a five-membered ring structure and that is included in a saturated cyclic compound used as a hydrogen carrier. [Solution] A metal catalyst used in hydrogenolysis of a cyclic compound that has a five-membered ring structure and that is included in a saturated cyclic compound used as a hydrogen carrier, comprises: a silica-based carrier as a catalyst carrier, and iridium or rhodium as a metal supported on the catalyst carrier.

A management system for managing an operating condition for a pipeline that processes fluid, the management system including a processor configured to: obtain measurement values from sensors provided in devices that constitute the pipeline; and estimate a maximum processing amount of the fluid in the entire pipeline in operation by inputting the measurement values obtained from the sensors into a physical model that is built based on physical properties of the devices.

The present disclosure provides a cathode electrode that can stably sustain a catalytic reaction producing an olefinic hydrocarbon such as ethylene and an alcohol such as ethanol by a reduction reaction of carbon dioxide over a long term. A cathode electrode that electrically reduces carbon dioxide, including cuprous oxide, copper, and at least one additional metal element selected from the group consisting of silver, gold, zinc, and cadmium.

A hydrogenation catalyst is used in hydrogenation of an aromatic halonitro compound. The hydrogenation catalyst includes a carrier including at least one of titania and alumina and palladium supported on the carrier. The palladium has an average particle diameter of 9.7 nm or less.

A method for producing ethylene oxide includes an ethylene oxide generation step 1 in which a first mixture containing ethylene oxide is obtained by causing ethylene and oxygen to react in presence of a diluent gas; a gas-liquid separation step 2 in which the first mixture is gas-liquid separated into a second mixture containing ethylene, oxygen, and carbon dioxide and a third mixture containing ethylene oxide and water; a carbon dioxide separation step 3 in which carbon dioxide is separated from the second mixture; and an electrolytic reduction step 4 in which the carbon dioxide is electrolytically reduced to obtain a fourth mixture containing ethylene, methane, and carbon dioxide and to obtain oxygen. In the carbon dioxide separation step, carbon dioxide is separated from the fourth mixture. In the ethylene oxide generation step, the second mixture and the fourth mixture, from which carbon dioxide has been removed, and the oxygen obtained in the electrolytic reduction step are used as raw material and a diluent gas.

An information processing device, comprising: a first acquisition unit 127; a second acquisition unit 128; and an extraction unit 129, wherein the first acquisition unit 127 acquires a first data set including at least a first process data related to a first process and first system data related to a system where the first process is performed, the second acquisition unit 128 acquires a second data set including at least a second process data related to a second process and second system data related to a system where the second process is performed, and the extraction unit 129 extracts at least one of a pair of the first process data and the second process data whose contents are the same as or similar to each other and a pair of the first system data and the second system data whose contents are the same as or similar to each other from the first data set and the second data set, and stores at least one of the pairs extracted in a storage unit in a manner where their correspondence relationship is identifiable.