Abstract: Specific embodiments of the present invention provide a hydrocracking process for converting low value-added heavy hydrocarbon distillates into high value-added hydrocarbon distillates using a supercritical solvent as a medium.

Abstract: The present invention relates to a method of preparing a hollow carbon structure. The method includes a step of calcining a solid component separated after a cracking reaction of a heavy hydrocarbon fraction; and a step of performing an acid treatment or base treatment on the solid component calcined in the above-described step. The present invention provides a method of preparing a hollow carbon structure which may be used to separate carbon dioxide, to remove a sulfur compound, and as a carrier of various substances by performing various pre-processes on carbon generated on a surface of a spent catalyst which is used in a cracking reaction of a heavy hydrocarbon fraction.

Abstract: A fuel cell compound valve that opens and closes an inflow line and an exhaust line of a fuel cell stack for a hydrogen fuel cell vehicle includes a support frame having a first bore to which the exhaust line is connected and a second bore to which the inflow line is connected. A first rotation valve is configured to receive a driving torque of a motor installed in the support frame, rotate, and open and close the first bore. A second rotation valve is connected to the first rotation valve and is configured to open and close the second bore. A first coupler protrusion protrudes from a first shaft in a longitudinal direction and has at least one first flat surface perpendicular to the longitudinal direction. A second coupler protrusion protrudes from a second shaft in the longitudinal direction of the first shaft.

Abstract: A structure of a fuel cell system and a controlling method thereof are provided. The structure of the fuel cell system includes a flow sensor that is configured to detect a flow of air introduced into the fuel cell system and an air compressor that is configured to compress the introduced air and has an air foil bearing to maintain minimum driving revolutions per minute or greater. Additionally, the system includes a flow adjuster that is connected to the fuel cell system. Accordingly, since an amount of air corresponding to a required amount of air of the fuel cell system is supplied by limiting or recirculating an excessive air supply while securing durability and durability of abrasion of the air compressor to which the air foil bearing is applied, a dry phenomenon of the fuel cell system including a stack due to the excessive supply of air is prevented.

Abstract: An air processing system of a fuel cell vehicle mounted with an integrated valve includes: the integrated valve attached to an air inlet and an air outlet formed integrally with a fuel cell stack and adjusting amounts of air introduced into and discharged from the fuel cell stack. The integrated valve is positioned at the shortest distance from the fuel cell stack, such that an amount of remaining oxygen that is to be consumed at the time of stopping start of a fuel cell vehicle is minimized. Therefore, corrosion of cathode carbon is decreased as compared with the related art, such that durability of the fuel cell vehicle is improved.

Abstract: The present invention relates to an apparatus and a method for treating ballast water, and an exemplary embodiment of the present invention provides a ballast water treatment apparatus including: a tank; a spray nozzle which supplies ballast water in the form of droplets into the tank; and a gas circulation unit which supplies inert gas to the spray nozzle, and sucks inert gas that is not dissolved in the ballast water in the tank.

Abstract: A method, a server, and a system includes a central server configured to compare an authorization result of a fare payment means upon boarding a transportation means with an authorization result of the fare payment means upon leaving the transportation means, determine whether to update at least one of a boarding terminal and a departure terminal based on the comparison result, and transmit update information to at least one of the boarding terminal and the departure terminal based on the determination result. The boarding terminal performs an authorization process of the fare payment means upon boarding if a network connection between the central server and the boarding terminal is unstable, and the departure terminal performs an authorization process of the fare payment means upon leaving if a network connection between the central server and the departure terminal is unstable.

Abstract: The present invention relates to a method of preparing a carbon dioxide adsorbent and a carbon dioxide capture module including the adsorbent prepared thereby.

Abstract: Provided are air humidification device and method for a fuel cell. The air humidification device and method for the fuel cell may cool an air compressor and air compressed by the air compressor and easily humidify air supplied to the fuel cell by mixing water with air and injecting the mixture into an inlet of the air compressor. In particular, the air humidification device and method may easily humidify air supplied to a cathode of the fuel cell by bypassing a portion of the compressed air from an outlet of an air compressor supplying air to the cathode of the fuel cell and simultaneously by injecting condensed water discharged from a fuel cell system into an inlet of the air compressor using the bypassed compressed air.

Abstract: A fuel cell compound valve that opens and closes an inflow line and an exhaust line of a fuel cell stack for a hydrogen fuel cell vehicle includes a support frame having a first bore to which the exhaust line is connected and a second bore to which the inflow line is connected. A first rotation valve is configured to receive a driving torque of a motor installed in the support frame, rotate, and open and close the first bore. A second rotation valve is connected to the first rotation valve and is configured to open and close the second bore. A first coupler protrusion protrudes from a first shaft in a longitudinal direction and has at least one first flat surface perpendicular to the longitudinal direction. A second coupler protrusion protrudes from a second shaft in the longitudinal direction of the first shaft.

Abstract: The present invention relates to a diaromatic amino acid substrate for cathepsin detection. When the substrate used for cathepsin detection is a polymer resulting from the binding of a protease-preferred amino acid and quencher to a diaromatic amino acid, cathepsin can be detected sensitively and accurately by fluorescence because cathepsin causes the protease-preferred amino acid and quencher to dissociate from the diaromatic amino acid, and fluorescence is recovered during this time.

Abstract: The present invention relates to a method of preparing a hollow carbon structure. The method includes a step of calcining a solid component separated after a cracking reaction of a heavy hydrocarbon fraction; and a step of performing an acid treatment or base treatment on the solid component calcined in the above-described step. The present invention provides a method of preparing a hollow carbon structure which may be used to separate carbon dioxide, to remove a sulfur compound, and as a carrier of various substances by performing various pre-processes on carbon generated on a surface of a spent catalyst which is used in a cracking reaction of a heavy hydrocarbon fraction.

Abstract: A method of reforming a heavy hydrocarbon distillate, which includes treating a heavy hydrocarbon distillate and a lignocellulosic biomass with a solvent, is provided. The method can be useful in maximizing conversion of the heavy hydrocarbon distillate into higher value-added distillate, for example, naphtha and a middle distillate, and allowing a sulfur compound produced by the decomposition of a heavy hydrocarbon distillate to catalyze pretreatment of the lignocellulosic biomass. Also, oxygen, hydroxymethylfurfural (HMF), levulinic acid, formic acid, and sulfuric acid produced by decomposition of the lignocellulosic biomass can catalyze decomposition of a heavy hydrocarbon distillate and lignocellulosic biomass, thereby activating decomposition of a heavy hydrocarbon distillate.

Abstract: An air supply apparatus and method for a fuel cell, which supplies high-pressure air while avoiding a surge phenomenon of a turbo type compressor in a fuel cell system to which the turbo type compressor is applied is provided. In particular, a portion of air from an outlet of a compressor to an inlet of the compressor is recirculated to the supply of air supplied from the compressor to a stack. This recirculated air and external air introduced from the outside are mixed and supplied to the inlet of the compressor at a sufficiently high air pressure, allowing the compressor to avoid a surge region and enabling the supply of air with a high pressure and a low flow rate.

Abstract: A mounting unit of a driving device for a vehicle is provided that attaches a driving device having a rotary component to a vehicle body. The mounting unit includes a mounting bracket attached to the vehicle body and rubber bushes respectively disposed at both sides of the mounting bracket corresponding to a first side of the driving device and at a substantial center of the mounting bracket corresponding to a second side of the driving device, and the rubber bushes are configured to fix the mounting bracket to the driving device using a plurality of mounting bolts.

Abstract: A fuel cell system includes an enclosure having a fuel cell stack producing electricity via an electrochemical reaction between high temperature and high pressure compressed air generated by an air compressor and hydrogen used as fuel. A portion of the compressed air from the air compressor is introduced into the enclosure through a first pipe, and the compressed air flows towards the air compressor from the enclosure through a second pipe. The compressed air introduced into the enclosure via the first pipe removes moisture and hydrogen leaking out of the fuel cell stack and returns to the air compressor via the second pipe.

Abstract: The present invention provides a starting device for high-voltage components of a fuel cell vehicle and a method for controlling the same, which can improve starting performance during start-up of the fuel cell vehicle by eliminating a DC-DC converter for the operation of the high-voltage components (e.g., air blower, water pump, etc.) of the fuel cell vehicle, and mounting a separate starting means, which can be operated solely by the power of a 12 V battery, directly on a drive shaft of the high-voltage component.

Abstract: Disclosed herein is a breaking apparatus for glass substrates. The breaking apparatus includes a breaking bar connected to a linear driver, a plurality of linear bushes longitudinally mounted on the breaking bar and each including an outer barrel, a plurality of buffer cylinders longitudinally mounted on the breaking bar, and a breaking tip extending in one direction and having a bar shape with a predetermined width. Each of the buffer cylinders includes a hollow cylinder body generating pressure therein, a piston received in the cylinder body, and a piston rod connected to the piston. The breaking tip is disposed in a longitudinal direction of the breaking bar beneath the breaking bar and connected to the piston rods and the shafts to be brought into contact with a glass substrate.

Abstract: An air cell system provided with emergency air port and an emergency air port is provided. In particular, an emergency port plate is provided between a suction block valve and a blower along air suction line of a fuel cell system or between a humidifier along an air suction line and a discharge block valve along an air discharge line and a wire is connected to the emergency port plate accordingly. Additionally, an operating assembly which enables the air suction line or the air discharge line to be in fluid communication with an external environment by pulling a wire to brake the emergency port plate when the suction block valve or the discharge block valve is not operating properly is also provided to provide a failsafe system for valve failure.

Abstract: The present invention relates to a method for biologically treating carbon dioxide using the sulfur-oxidizing chemolithoautotroph Sulfurovum lithotrophicum 42BKT. The method of the present invention may enable carbon dioxide to be fixed or converted in high-concentration and high-pressure conditions which do not allow the biological photosynthetic conversion of microalgae or the like, and may exhibit high efficiency in the fixation of carbon dioxide as compared to existing methods for biologically treating carbon dioxide using microalgae. Further, the method of the present invention may use a gas mixture without a process of separating nitrogen and other gases, thus simplifying the process of the fixation or conversion of carbon diode.