Patents Assigned to Toyo Engineering Corporation
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Patent number: 8663995Abstract: There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same.Type: GrantFiled: May 12, 2010Date of Patent: March 4, 2014Assignee: Toyo Engineering CorporationInventors: Eiji Sakata, Kenji Yoshimoto, Shuhei Nakamura
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Patent number: 8622438Abstract: A piping system comprising: a main pipe; a first pipe member connecting an equipment nozzle and the main pipe via a first bellows; a second pipe member connected to a side part of the main pipe; a third pipe member connected to the other end of the second pipe member via a second bellows; first and second tie rod support members fixed to the first and third pipe members; tie rods that interconnect the tie rod support members; and an anchor that sets a portion of the main pipe as a fixed point. Lengths of the pipe members between the tie rod support members are determined so that the first bellows contracts by thermal expansion of the equipment nozzle, the first pipe member, and the pipe member of the main pipe below the anchor, and the second bellows contracts by an amount equally to that of the first bellows.Type: GrantFiled: October 25, 2011Date of Patent: January 7, 2014Assignee: Toyo Engineering CorporationInventor: Kensuke Noda
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Publication number: 20130256115Abstract: A distillation apparatus of the present invention includes high-pressure column 1 corresponding to a region above a heat exchanging section located at a lowermost part of a region including a trayed section or a packed bed section, which is used as a rectifying section; and low-pressure column 2 that is located above as seen from high-pressure column 1, which integrates a region including a trayed section or a packed bed section which is used as a stripping section, with rectifying section corresponding portion 2g that corresponds to a region locating below the heat exchanging section located at the lowermost part in the rectifying section. Rectifying section corresponding portion 2g is located on top 2c of the stripping section in low-pressure column 2 so that rectifying section corresponding portion 2g continues to the stripping section.Type: ApplicationFiled: March 7, 2013Publication date: October 3, 2013Applicant: TOYO ENGINEERING CORPORATIONInventors: Toshihiro Wakabayashi, Takato Nakao
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Publication number: 20130251610Abstract: The present invention relates to a method for producing lithium carbonate, which is important as a raw material of a lithium ion battery and the like, from brine resources. More specifically, the invention relates to a method for producing lithium carbonate, in which carbon dioxide gas obtained by calcining limestone is introduced, in the presence of ammonia, into a concentrated brine, which is prepared from a lithium-containing brine as a raw material through an evaporative concentrating step, a desulfurizing step and an electrodialysis step, thereby depositing lithium carbonate crystals, and the crystals thus deposited are recovered through solid-liquid separation.Type: ApplicationFiled: November 29, 2012Publication date: September 26, 2013Applicants: NITTETSU MINING CO., LTD., SUMITOMO CORPORATION, TOYO ENGINEERING CORPORATIONInventors: Masanobu KAWATA, Hirohumi TANAKA, Kohei MITSUHASHI, Ryo KAWARABUKI, Youichi YAMAMOTO, Keita KAMIYAMA, Atsushi MORIYA, Norifumi SAKAI
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Publication number: 20130220791Abstract: A distillation apparatus includes a rectifying column, a stripping column located above seen from the rectifying column, a liquid sump unit located at a predetermined stage of the stripping column and configured to hold liquid that has flowed downward, a heat exchanger located in the liquid sump unit, a second pipe for introducing vapor in the rectifying column to the heat exchanger of the stripping column, and a third pipe for introducing fluids flowing out from the heat exchanger of the stripping column to the rectifying column. Further, a flare line having lower pressure than pressure in the rectifying column is connected to a downstream side of the third pipe. The distillation apparatus can switch a first flow toward an inside of the rectifying column through the third pipe to a second flow branching from the third pipe toward a pipe at a lower pressure side.Type: ApplicationFiled: February 22, 2013Publication date: August 29, 2013Applicant: TOYO ENGINEERING CORPORATIONInventor: TOYO ENGINEERING CORPORATION
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Publication number: 20130213792Abstract: A distillation apparatus includes a rectifying column, a stripping column, a first pipe that communicates a column top of the stripping column with a column bottom of the rectifying column, and a compressor configured to compress vapor from the stripping column and then to feed the compressed vapor to the rectifying column. The distillation apparatus further includes a heat exchanger located at a predetermined stage of the rectifying column, a liquid withdrawal unit located at a predetermined stage of the stripping column and configured to withdraw a part of liquid from the predetermined stage to an outside of the column, a second pipe that introduces the liquid from the liquid withdrawal unit to the heat exchanger, and a third pipe that introduces fluids introduced through the second pipe to the heat exchanger and then discharged out of the heat exchanger to a stage directly below the liquid withdrawal unit.Type: ApplicationFiled: February 20, 2013Publication date: August 22, 2013Applicant: TOYO ENGINEERING CORPORATIONInventor: TOYO ENGINEERING CORPORATION
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Patent number: 8492490Abstract: An apparatus for manufacturing a polymer resin comprises a polymerization vessel, a bearing part, a protection part, a circulating cooling means, a raw material-injecting nozzle and a flow path-constituting part. The protection part forms a first flow path between the protection part and the side face of the agitation axis. The circulating cooling means includes a circulating inlet nozzle provided on a side face of the protruding part so as to be opposite to the protection part. The flow path-constituting part is provided between the bearing part and the protection part so as to cover the side face of the agitation axis, to fix the bearing part and the protection part. This flow path-constituting part forms a second flow path between the side face of the agitation axis and the flow path-constituting part and a third flow path for coupling the second flow path with the raw material-injecting nozzle.Type: GrantFiled: September 18, 2008Date of Patent: July 23, 2013Assignee: Toyo Engineering CorporationInventors: Kenichirou Matsuba, Kazushige Kimura
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Patent number: 8465710Abstract: There is provided a radial flow reactor having a multi-pass structure in which loading and unloading of granular packing are easy and which does not impair the reaction performance. The reactor includes, in an upright tubular reactor vessel: a packing region for housing a continuous packed bed of granular packing; and an outer and an inner passages disposed outside and inside the packing region, respectively, allowing a fluid to flow in the axial direction. The reactor is configured so that the fluid can pass between the packing region and the outer passage and between the packing region and the inner passage.Type: GrantFiled: March 29, 2011Date of Patent: June 18, 2013Assignee: Toyo Engineering CorporationInventor: Kenji Sakai
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Patent number: 8431018Abstract: A supported carbon having high surface area, high pore volume containing (i) molybdenum (ii) a metal of non noble Group VIII, (iii) phosphorous, is used for hydrometallization of heavy crude oil and residue. The catalyst contains about 6 to 15 wt % molybdenum as MoO3, about 1 to 6 wt % cobalt or nickel as CoO or NiO and phosphorus as phosphorous oxide. One characteristic of the catalyst is the portion of pores having pore diameter in the range of 200 to 2000 Angstrom of 20 percent or more. The catalyst prepared by chelating agent has higher hydrodesulfurization activity assuming that more dispersed active metals are present on this catalyst. Long run activity studies show that catalyst having only molybdenum supported on activated carbon has good stability with time-on-stream and very high metal retention capacity.Type: GrantFiled: March 3, 2010Date of Patent: April 30, 2013Assignees: Instituto Mexicano del Petroleo, Toyo Engineering CorporationInventors: Samir Kumar Maity, Jorge Ancheyta Juárez, Fernando Alonso Martínez, Hidetsugu Fukuyama, Satoshi Terai, Masayuki Uchida
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Patent number: 8247463Abstract: The present invention provides a process of coproducing methanol and ammonia by using natural gas, LPG, butane, or naphtha as a raw material, having a methanol production process (A) composed of specific steps and an ammonia production process (B) also composed of specific steps.Type: GrantFiled: December 9, 2009Date of Patent: August 21, 2012Assignee: Toyo Engineering CorporationInventors: Nobuhiro Yoshida, Kunio Hirotani
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Patent number: 8197729Abstract: A granulator, having a granulation unit having a bottom floor with a perforated plate as its bottom part; an upper air-supplying pipe for supplying a fluidizing air to the bottom floor of the granulation unit; a lower air-supplying pipe; air-spouting pipes, each of which is branched from the lower air-supplying pipe, and has an opening in the bottom floor of the perforated plate, for jetting the air into the granulation unit; and spray nozzles for spraying a granulation raw material liquid, which each are provided in the center of an air outlet of the air-spouting pipe, or a granulator, having: the bottom floor; the air-supplying pipe; and spray nozzles for spraying a granulation raw material liquid each of which are provided in an opening in the bottom floor of the perforated plate, and use a high-pressure atomizing air as an auxiliary gas, wherein, in each granulator, the spray nozzles are provided in a triangular arrangement.Type: GrantFiled: October 30, 2008Date of Patent: June 12, 2012Assignee: Toyo Engineering CorporationInventors: Yasuhiko Kojima, Takahiro Yanagawa
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Publication number: 20120125761Abstract: Provided is a heat integrated distillation apparatus in which energy efficiency and a degree of freedom in design is higher than a normal distillation column, and in which maintenance of the apparatus is simple. The heat integrated distillation apparatus includes: rectifying column (1); stripping column (2) located higher than rectifying column (1); first pipe (23) for connecting top part (2c) of the stripping column with bottom part (1a) of the rectifying column; and compressor (4) that compresses vapor from top part (2c) of the stripping column to feed the compressed vapor to bottom part to (1a) of the rectifying column.Type: ApplicationFiled: September 24, 2010Publication date: May 24, 2012Applicant: TOYO ENGINEERING CORPORATIONInventors: Masaru Nakaiwa, Toshihiro Wakabayashi, Akihiko Tamakoshi
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Publication number: 20120098252Abstract: A piping system comprising: a main pipe; a first pipe member connecting an equipment nozzle and the main pipe via a first bellows; a second pipe member connected to a side part of the main pipe; a third pipe member connected to the other end of the second pipe member via a second bellows; first and second tie rod support members fixed to the first and third pipe members; tie rods that interconnect the tie rod support members; and an anchor that sets a portion of the main pipe as a fixed point. Lengths of the pipe members between the tie rod support members are determined so that the first bellows contracts by thermal expansion of the equipment nozzle, the first pipe member, and the pipe member of the main pipe below the anchor, and the second bellows contracts by an amount equally to that of the first bellows.Type: ApplicationFiled: October 25, 2011Publication date: April 26, 2012Applicant: TOYO ENGINEERING CORPORATIONInventor: Kensuke Noda
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Patent number: 8153007Abstract: A method of treating a wastewater, containing the steps of: filtering a wastewater supplied into an activated sludge tank and biologically-treated therein, in a membrane module installed outside the activated sludge tank; chemical-cleaning the membrane module with a membrane-cleaning agent while the membrane module is disconnected from the activated sludge tank with a valve; and water-flushing off the substances contained in the wastewater that react with the membrane-cleaning agent and form hazardous substances and/or operation-inhibiting substances, or the membrane-cleaning agent remaining in the membrane module with water while the membrane module and the activated sludge tank are disconnected from each other by the valve, wherein the membrane-cleaning agent is prevented from contacting the substances contained in the wastewater that react with the membrane-cleaning agent and form hazardous substances and/or operation-inhibiting substances.Type: GrantFiled: March 4, 2009Date of Patent: April 10, 2012Assignee: Toyo Engineering CorporationInventor: Hiroaki Ikebe
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Publication number: 20120060931Abstract: There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same.Type: ApplicationFiled: May 12, 2010Publication date: March 15, 2012Applicant: TOYO ENGINEERING CORPORATIONInventors: Eiji Sakata, Kenji Yoshimoto, Shuhei Nakamura
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Publication number: 20110250102Abstract: There is provided a radial flow reactor having a multi-pass structure in which loading and unloading of granular packing are easy and which does not impair the reaction performance. The reactor includes, in an upright tubular reactor vessel: a packing region for housing a continuous packed bed of granular packing; and an outer and an inner passages disposed outside and inside the packing region, respectively, allowing a fluid to flow in the axial direction. The reactor is configured so that the fluid can pass between the packing region and the outer passage and between the packing region and the inner passage. The reactor further includes at least one of an outer partition structure and an inner partition structure.Type: ApplicationFiled: March 29, 2011Publication date: October 13, 2011Applicant: TOYO ENGINEERING CORPORATIONInventor: Kenji Sakai
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Publication number: 20110178254Abstract: An apparatus for manufacturing a polymer resin comprises a polymerization vessel, a bearing part, a protection part, a circulating cooling means, a raw material-injecting nozzle and a flow path-constituting part. The protection part forms a first flow path between the protection part and the side face of the agitation axis. The circulating cooling means includes a circulating inlet nozzle provided on a side face of the protruding part so as to be opposite to the protection part. The flow path-constituting part is provided between the bearing part and the protection part so as to cover the side face of the agitation axis, to fix the bearing part and the protection part. This flow path-constituting part forms a second flow path between the side face of the agitation axis and the flow path-constituting part and a third flow path for coupling the second flow path with the raw material-injecting nozzle.Type: ApplicationFiled: September 18, 2008Publication date: July 21, 2011Applicant: TOYO ENGINEERING CORPORATIONInventors: Kenichirou Matsuba, Kazushige Kimura
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Patent number: 7815874Abstract: A reactor including a reactor vessel and heat exchange tubes provided in the reactor vessel. The reactor vessel includes a tubesheet and is configured to receive a reaction fluid. The tubesheet has a first plate member configured to contact the reaction fluid and a second plate member configured to not contact the reaction fluid. Heat exchange tubes are provided in the reactor vessel and fixed to the first plate member. The heat exchange tubes are configured to receive a heat exchange medium. At least a portion of the first plate member configured to contact the reaction fluid is made of a metal that has a high corrosion-resistance against the reaction liquid, and the second plate member is made of a metal that has a low corrosion-resistance against the reaction liquid. The second plate member is detachably fixed to a remainder of the reactor vessel.Type: GrantFiled: May 22, 2008Date of Patent: October 19, 2010Assignee: Toyo Engineering CorporationInventors: Kenji Sakai, Yasuhiko Kojima
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Publication number: 20100224535Abstract: A supported carbon having high surface area, high pore volume containing (i) molybdenum (ii) a metal of non noble Group VIII, (iii) phosphorous, is used for hydrometallization of heavy crude oil and residue. The catalyst contains about 6 to 15 wt % molybdenum as MoO3, about 1 to 6 wt % cobalt or nickel as CoO or NiO and phosphorus as phosphorous oxide. One characteristic of the catalyst is the portion of pores having pore diameter in the range of 200 to 2000 Angstrom of 20 percent or more. The catalyst prepared by chelating agent has higher hydrodesulfurization activity assuming that more dispersed active metals are present on this catalyst. Long run activity studies show that catalyst having only molybdenum supported on activated carbon has good stability with time-on-stream and very high metal retention capacity.Type: ApplicationFiled: March 3, 2010Publication date: September 9, 2010Applicants: INSTITUTO MEXICANO DEL PETROLEO, TOYO ENGINEERING CORPORATIONInventors: Samir Kumar Maity, Jorge Ancheyta Juárez, Fernando Alonso Martínez, Hidetsugu Fukuyama, Satoshi Terai, Masayuki Uchida
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Patent number: 7763215Abstract: A reactor including a reactor vessel and heat exchange tubes provided in the reactor vessel. The reactor vessel includes a tubesheet and is configured to receive a reaction fluid. The tubesheet has a first plate member configured to contact the reaction fluid and a second plate member configured to not contact the reaction fluid. Heat exchange tubes are provided in the reactor vessel and fixed to the first plate member. The heat exchange tubes are configured to receive a heat exchange medium. At least a portion of the first plate member configured to contact the reaction fluid is made of a metal that has a high corrosion-resistance against the reaction liquid, and the second plate member is made of a metal that has a low corrosion-resistance against the reaction liquid. The second plate member is detachably fixed to a remainder of the reactor vessel.Type: GrantFiled: October 3, 2005Date of Patent: July 27, 2010Assignee: Toyo Engineering CorporationInventors: Kenji Sakai, Yasuhiko Kojima