Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

The Kansai Electric Power Co., Inc.

Astellas Pharma Gmbh

Primetals Technologies Japan, Ltd.

Mitsubishi Hitachi Power Systems Environmental Solutions, Ltd.

Other

Yamanouchi Pharmaceutical Company Ltd.

Cytokinetics, Inc.

Hokuto Corporation

Kabushiki Kaisha Meiji Gomu Kasei

Takuya Hirata

Hiroshi Tanaka

Tatsuya Tsujiuchi

Hiromitsu Nagayasu

Takashi Kamijo

Tsuyoshi Oishi

Yasuyuki Yagi

Atsuhiro Yukumoto

Masayuki Inui

Masahiko Tatsumi

Masaru Chiyomaru

Susumu Okino

Naoyuki Kamiyama

Tatsuto Nagayasu

Shinya Kishimoto

Keiji Fujikawa

Koji Nakayama

Tomio Mimura

Shinichi Okamoto

Takahito Yonekawa

Kouji Horizoe

Masaki Iijima

Masashi Yoshikawa

Kazuo Ishida

Masato Watanabe

Takao Tanaka

Hiroshi Nakashoji

Yasutoshi Ueda

Tetsuya Imai

Masaya Kato

Akihiro Kojima

Toru Takashina

Hiroaki Ito

Tatsuo Ishiguro

Shinji Nakamura

Hideyuki Uechi

Kaori Yoshida

Toyoaki Yasui

Haruaki Hirayama

Ryuji Yoshiyama

Masakazu Sakaguchi

Kouki Ogura

Yasutaka Aoki

Yoshiki Sorimachi

Hidehiko Tajima

Kazuhiko Kaibara

Seiji Yoshihara

Takahiko Endo

Tomoki Noborisato

Daisuke Shimada

Shimpei Kawasaki

Ryusuke Nakatsuka

Kosei Tsuji

Yuichiro Sato

Masami Kondo

Jun-ichi Kazami

Yoshinori Kajiya

Takashi Nojo

Shinsuke Nakatani

Toyoshi Nakagawa

Tomohiro Murai

Norihisa Matake

Yusuke Kajihara

Shigenori Suemori

Akiyori Hagimoto

Takahiro Yagi

Yoshihiro Keto

Koji Kadono

Hideaki Takatani

Takuya Sugiura

Shinobu Mori

Hiroko Inamura

Motomichi Ochiai

Kei Shioya

Shunji Ichikawa

Toshiyuki Funatsu

A COrecovery unit includes a COabsorber that brings a gas having a low COconcentration into countercurrent contact with a COabsorbent to remove COfrom the gas. The COrecovery unit further includes a first absorbent circulation line that supplies a COabsorbent from a first COabsorption section as a first circulation solution to an upper side of a first COabsorption section; a second absorbent circulation line that supplies a COabsorbent from a second COabsorption section as a second circulation solution to an upper side of a second COabsorption section; and an absorbent discharge line that discharges a part of the first circulation solution from the first absorbent circulation line and supply the part of the first circulation solution as a discharged solution to the second absorbent circulation section.

COrecovery unit and COrecovery method

An acid solution preparation device is an acid solution preparation device for preparing an acid solution used for pickling of a steel plate, the device including a sealed tank for storing the acid solution, a gas supply part for supplying an oxygen-containing gas from outside of the sealed tank to the sealed tank, and a purge part for discharging a gas in the sealed tank to the outside.

Acid solution preparation device, acid solution supply apparatus, and pickling facility

A composite amine absorbent to absorb at least one of COand HS in a gas includes: a chain monoamine; a diamine; a cyclic compound represented by the following chemical formula: where R: any one of hydrogen, a hydrocarbon group having a carbon number of 1 to 4, and a hydroxyalkyl group, R: oxygen or N—R, and R: any one of hydrogen, a hydrocarbon group having a carbon number of 1 to 4, and a hydroxyalkyl group; and water.

Composite amine absorbent, removal unit, and removal method

An air pollution control unit is configured to bring particle-containing gas and washing liquid into contact with each other to collect particles in the particle-containing gas. The air pollution control unit includes a gas washing column having a gas cleaning section in which the particle-containing gas and the washing liquid are brought into co-current contact with each other, a gas cooling column disposed downstream of the gas washing column along the gas flow and having a gas cooling section in which the particle-containing gas that has been cleaned (cleaned gas) and cooling liquid are brought into countercurrent contact with each other, and a gas communication path.

Air pollution control unit and air pollution control method, and CO2 recovery unit and CO2 recovery method

A method for pickling a steel plate having a first steel plate portion and a second steel plate portion which is connected to a tail end of the first steel plate portion and which requires a longer time for pickling than the first steel plate portion when pickled under the same condition includes: a step of pickling the steel plate by immersing the steel plate in an acid solution in at least one pickling tank while conveying the steel plate; a step of circulating the acid solution, through a circulation line connected to any of the at least one pickling tank, between the pickling tank and an oxidizing device disposed in the circulation line; a step of oxidizing Fein the acid solution to Feby the oxidizing device using a gaseous oxidant; and a feeding start step of, upon switching from pickling of the first steel plate portion to pickling of the second steel plate portion, starting feeding of a liquid oxidant for oxidizing Fein the acid solution to Feto any of the at least one pickling tank or to the circulation line.

Method for pickling steel plate and pickling apparatus

A composite amine absorbent according to the present invention is an absorbent for absorbing COor HS, or both of COand HS in a gas. The absorbent is obtained by dissolving (1) a linear monoamine, (2) a diamine, and (3) propylene glycol alkyl ether, for example, represented by the following chemical formula (I) in water. In the composite amine absorbent, the components complexly interact, and the synergistic effect thereof provides good absorbability of COor HS, or both of COand HS and good releasability of COor HS absorbed during regeneration of the absorbent. Furthermore, the amount of water vapor in a reboilerused during regeneration of the absorbent in a COrecovery unitcan be reduced.R&#x2014;O&#x2014;(R&#x2014;O)&#x2014;R&#x2003;&#x2003;(I)

Composite amine absorbent, and device and method for removing CO2 or H2S, or both of CO2 and H2S

An absorbent liquid which absorbs at least one of COand HS from a gas, including a secondary linear monoamine; a tertiary linear monoamine or a sterically hindered primary monoamine; and a secondary cyclic diamine, wherein a concentration of each of the secondary linear monoamine, the tertiary linear monoamine or the sterically hindered primary monoamine; and the secondary cyclic diamine is less than 30% by weight.

Absorbent liquid for CO2 and/or H2S, and apparatus and method using same

A carbon dioxide recovery system for collecting carbon dioxide from an exhaust gas generated in a facility including a combustion device includes: a first exhaust gas passage through which the exhaust gas containing carbon dioxide flows; a fuel cell including an anode, a cathode disposed on the first exhaust gas passage so that the exhaust gas from the first exhaust gas passage is supplied to the cathode, and an electrolyte transferring, from the cathode to the anode, a carbonate ion derived from carbon dioxide contained in the exhaust gas from the first exhaust gas passage; and a second exhaust gas passage diverging from the first exhaust gas passage upstream of the cathode so as to bypass the cathode. A part of the exhaust gas is introduced to the second exhaust gas passage.

Carbon dioxide recovery system, thermal power generation facility, and carbon dioxide recovery method

A workpiece support system includes: a plurality of rods that are extendable and retractable in an axial direction; a holder rotatably placed in an upper end portion of each of the rods, to hold a workpiece; a first lock part that keeps an extended/retracted position of the rod in the axial direction; and a position adjustment device including a hand portion configured to hold the rod or the holder, to perform position control of the hand portion. The position adjustment device moves the hand portion, to extend and retract the rod, based on shape data of the workpiece that is recorded in advance, in a state where the rod or the holder is held by the hand portion, and the first lock part keeps the extended/retracted position of the rod extended and retracted by the position adjustment device.

Workpiece support system and workpiece support method

A method for recovering an acidic gas, includes: a step of bringing a gas to be treated that contains an acidic gas into gas-liquid into contact with an amine absorbing solution, allowing the amine absorbing solution to absorb the acidic gas, thereby removing the acidic gas from the gas to be treated; a step of allowing the amine absorbing solution that has absorbed the acidic gas to release the acidic gas, thereby regenerating the amine absorbing solution, and at the same time, recovering the released acidic gas; and an analysis step of calculating concentrations of iron ions and/or heavy metal ions in the amine absorbing solution.

Method and system for recovering acidic gas

An acid gas regenerator includes a regenerator condenser that condenses moisture from entraining gas entraining a corrosive substance and acid gas discharged from a column top portion of a regenerator that regenerates acid gas absorbent. The regenerator condenser includes: a gas discharge line that discharges the entraining gas from the column top portion of the regenerator, a cooler installed on the discharge line; a gas-liquid separator that separates COgas from regenerator condensed water obtained by condensing vapor using the cooler, a reflux line that refluxes the regenerator condensed water closer to the column top portion than the rich solution introducing unit; a condensed water receiver storing the condensed water introduced by the reflux line; and a first condensed water extraction line that extracts the condensed water from a condensed water extractor of the condensed water receiver and is connected to a lean solution supply line.

Acid gas removal device and acid gas removal method

An exhaust gas treatment device includes an exhaust gas line where a combustion exhaust gas discharged from a power generation facility flows through, an exhaust gas line where a second combustion exhaust gas discharged from a second power generation facility flows through, exhaust gas exhaust line disposed by branching off from exhaust gas line, discharging a part of combustion exhaust gases as exhaust combustion exhaust gases, a nitrogen oxide removing unit removing nitrogen oxide contained in an integrated combustion exhaust gas that integrates the combustion exhaust gases, an integrated waste heat recovery boiler recovering waste heat from the integrated combustion exhaust gas, and a COrecovery unit recovering COcontained in the integrated combustion exhaust gas by using COabsorbing liquid.

Exhaust gas treatment device and exhaust gas treatment method

An exhaust gas treatment device includes an exhaust gas line through which a combustion exhaust gas discharged from a power generation facility flows, a waste heat recovery boiler recovering waste heat of the combustion exhaust gas, a branch exhaust gas line provided to be connected between a front stage and a downstream stage of the waste heat recovery boiler on a main exhaust gas line, a nitrogen oxide removal unit removing nitrogen oxide in an integrated combustion exhaust gas into which a combustion exhaust gas flowing through the main exhaust gas line and a combustion exhaust gas flowing through the branch exhaust gas line are integrated, an integrated waste heat recovery boiler recovering waste heat of the integrated combustion exhaust gas from which nitrogen oxide has been removed, and a COrecovery unit recovering COin the integrated combustion exhaust gas.

A reclaiming apparatus includes: a reclaimer configured to extract a lean solution that is a part of an acid gas absorbing liquid regenerated in a regenerator in a recovery unit that recovers acid gas components in gas with the acid gas absorbing liquid, and introduce and receive an extracted lean liquid; an alkaline agent supply pipe configured to supply an alkaline agent to an inside of the reclaimer; a water supply pipe configured to supply supply water to the inside of the reclaimer; a recovered steam discharge pipe configured to introduce recovered steam discharged from the reclaimer into the regenerator; a thermometer that measures temperature in the reclaimer; a pressure guage configured to measure pressure in the reclaimer; and a reclaimer controller.

Reclaiming apparatus and method for reclaiming

A reduction device, an acid gas recovery device, a recovery device collector, and a first removed substance returning line are provided. The reduction device is configured to perform a reduction process to turn iron oxide to reduced iron by adding a reducing agent. The acid gas recovery device is configured to recover CObeing acid gas with COabsorbing liquid being acid gas absorbing liquid from exhaust gas containing at least powder-shaped iron-based solid substances and the acid gas, which are discharged from the reduction device. The recovery device collector is configured to collect the iron-based solid substance contained in the absorbing liquid with a filter. The iron-based solid substances collected by the recovery device collector are removed, and removed substances containing the removed iron-based solid substances are returned to the reduction device side through the first removed substance returning line.

Exhaust gas treatment system

Growing community of inventors

Tokyo, Japan

Takuya Hirata