Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

The Kansai Electric Power Co., Inc.

Nissan Motor Company Limited

Kyb Corporation

Takashi Kamijo

Tatsuya Tsujiuchi

Hiroshi Tanaka

Takuya Hirata

Hiromitsu Nagayasu

Tsuyoshi Oishi

Yasuyuki Yagi

Takahito Yonekawa

Osamu Miyamoto

Masaki Iijima

Masayuki Inui

Shinya Kishimoto

Tatsuto Nagayasu

Naoyuki Kamiyama

Susumu Okino

Tomio Mimura

Seiji Yoshihara

Koji Nakayama

Masahiko Tatsumi

Kazuhiko Kaibara

Naoyuki Nagafuchi

Atsushi Tsutsumi

Masaru Chiyomaru

Shimpei Kawasaki

Kouki Ogura

Yoshiki Sorimachi

Tetsuya Tanaka

Yuichiro Sato

Shintaro Honjo

Hiromi Ishii

Toyoshi Nakagawa

Tomoki Noborisato

Masami Kondo

Katsufumi Inoue

Tetsuya Maruoka

Naoyuki Yoshizumi

Takuya Okamoto

Akihiko Tanigaki

Tsuyoshi Ishikawa

Naohiko Ukawa

Satoru Sugita

Yoshiyuki Kondo

Azusa Kobayashi

Kouji Horizoe

Shinsuke Higuchi

Hidekatsu Akiyama

Motofumi Ito

Daisuke Shimada

Keisuke Kawai

Hiroaki Shigeta

Yoshinori Kajiya

Hiroshi Tsubone

Takahiro Araya

Kazunori Tsujii

Takuya Sugiura

Daijirou Ogino

Yasuyuki The Kansai Electric Power Co Inc Yagi

Tomio The Kansai Electric Power Co Inc Mimura

Hirata Takuya

Tiffany Wu

This exhaust gas processing equipment is provided with an exhaust line through which exhaust gas discharged from a boiler circulates, a carbon dioxide recovering device for recovering carbon dioxide included in the exhaust gas, and an exhaust gas heating device provided downstream of the carbon dioxide recovering device to heat the exhaust gas. The carbon dioxide recovering device includes a first medium line through which a first medium circulates, and a second medium line through which a second medium higher in temperature than the first medium circulates. The exhaust gas heating device includes a first heating unit for heating the exhaust gas by means of heat exchange with the first medium, and a second heating unit for heating the exhaust gas passing through the first heating unit even more by heat exchange with the second medium.

Exhaust gas processing equipment and gas turbine plant

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

A carbon dioxide recovery system includes: a plurality of absorption towers each disposed for each of a plurality of combustion equipments for absorbing carbon dioxide in an exhaust gas discharged from each of the plurality of combustion equipments into an absorption liquid by bringing the exhaust gas into contact with the absorption liquid; and at least one regeneration tower communicating with each of the plurality of absorption towers, for recovering carbon dioxide from a COrich absorption liquid which is the absorption liquid flowing out of each of the plurality of absorption towers. The regeneration tower is smaller in number than the absorption towers.

Carbon dioxide recovery system and carbon dioxide recovery method

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 absorption solvent regeneration device includes: a regenerator for regenerating an absorption solvent by separating COfrom the absorption solvent which has absorbed CO; a main rich solvent line for supplying the absorption solvent which has absorbed COto the regenerator; a first heating part for heating the absorption solvent flowing through the main rich solvent line, the first heating part being disposed on the main rich solvent line; and a branch rich solvent line for supplying a part of the absorption solvent flowing through the main rich solvent line to the regenerator, the branch rich solvent line branching from the main rich solvent line. The absorption solvent regeneration device further includes a regulating part for regulating a ratio between a first flow rate of the absorption solvent flowing through the first branch portion and a second flow rate of the absorption solvent flowing through the second branch portion.

Absorption solvent regeneration device, COrecovery device, and absorption solvent regeneration method

An absorption solvent regeneration device includes: a regenerator for regenerating an absorption solvent by separating COfrom the absorption solvent which has absorbed CO; a main rich solvent line for supplying the absorption solvent which has absorbed COto the regenerator; a regeneration reboiler for heating an absorption solvent extracted from the regenerator; a reboiler line configured to extract the absorption solvent stored in the regenerator and return the absorption solvent to the regenerator via the regeneration reboiler; a branch rich solvent line branching from the main rich solvent line and connected to a portion of the reboiler line downstream of the regeneration reboiler; and a heating part for heating the absorption solvent flowing through the branch rich solvent line, the heating part being disposed on the branch rich solvent line.

Absorption solvent regeneration device, CO2 recovery device, and method for modifying absorption solvent regeneration device

A cooling absorption tower for a COrecovery device, comprises: an outer shell; a cooling section for cooling a flue gas, the cooling section being disposed in the outer shell; and an absorbing section configured to cause COin the flue gas cooled by the cooling section to be absorbed in an absorption solvent, the absorbing section being disposed in the outer shell and above the cooling section.

Cooling absorption tower, CO2 recovery device including same, and CO2 recovery method

A boiler plant includes a carbon dioxide capture system. The carbon dioxide capture system has an absorbing-liquid regeneration device and an absorber. The absorbing-liquid regeneration device includes a regenerator, a first circulation line in which the absorbing liquid is taken out from the regenerator and is returned to the regenerator, and a second circulation line in which the absorbing liquid is taken out from the regenerator and is returned to the regenerator, a heat exchanger, a heater, and a switcher. The heat exchanger heats the absorbing liquid by exchanging heat between the absorbing liquid flowing through the first circulation line and steam from the boiler. The heater heats the absorbing liquid flowing in the second circulation line. The switcher switches between a first heating state, in which the absorbing liquid flows in the first circulation line, and a second heating state, in which the absorbing liquid flows in the second circulation line.

Boiler plant and carbon dioxide removal method

A gas turbine plant includes a gas turbine, an exhaust line, an exhaust heat recovery boiler that generates steam due to heat of exhaust gas and guides the exhaust gas to the exhaust line, a carbon dioxide recovery device that recovers carbon dioxide contained in the exhaust gas, a heat exchanger that cools the exhaust gas to a temperature set in advance, and a circulation line that branches from a position between the carbon dioxide recovery device and the heat exchanger and is connected to an inlet of the gas turbine. The carbon dioxide recovery device has an absorption tower that absorbs carbon dioxide contained in the exhaust gas by causing the exhaust gas at the set temperature and an absorption liquid to come into contact with each other. The heat exchanger is formed of a material having higher corrosion resistance than a material forming the exhaust heat recovery boiler.

Gas turbine plant

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 apparatus is disclosed including a flue gas cooling unit that brings flue gas cooling water into contact with a flue gas to cool the flue gas, a circulation channel through which the flue gas cooling water and condensed water are returned to the flue gas cooling unit, an absorption unit including a carbon dioxide absorbing section, and a flue gas washing section that brings the flue gas including carbon dioxide absorbed in the carbon dioxide absorbing section into contact with flue gas washing water and washes the flue gas, a regeneration unit that removes carbon dioxide from the absorbent including carbon dioxide absorbed in the absorption unit, a supply channel through which circulating water is guided, and a discharge channel through which the circulating water circulating through the flue gas cooling unit and the circulation channel is discharged to outside of a system.

Carbon dioxide recovery apparatus

A gas turbine plant includes an exhaust line, a carbon dioxide recovery device configured to recover carbon dioxide contained in an exhaust gas, a circulation line connected to a gas turbine, a first valve device, a bypass line bypassing the carbon dioxide recovery device, a second valve device provided on the bypass line, a third valve device provided at a position between the bypass line and the carbon dioxide recovery device, a densitometer configured to detect a carbon dioxide concentration in the exhaust gas, and a control device configured to adjust opening degrees of the first valve device, the second valve device, and the third valve device based on an operation state of the gas turbine and the carbon dioxide concentration.

Gas turbine plant and exhaust carbon dioxide recovery method therefor

A plant according to an embodiment includes a gas turbine; a heat recovery unit that includes a primary heat recovery steam generator in which a primary heat exchanging unit generates primary steam by exchanging heat that is the thermal energy of the flue gas from the gas turbine, and a secondary heat recovery steam generator that is installed independently from the primary heat exchanging unit, and in which a secondary heat exchanging unit generates secondary steam by exchanging heat that is the thermal energy of the flue gas partly having exchanged heat in the primary heat exchanging unit included in the primary heat recovery steam generator; a primary steam turbine; a COrecovery unit; and a first reboiler heat supply line.

Plant and air pollution control method

A catalyst warm-up control method for a hybrid vehicle supplies electric power to an electric motor by a battery, to charge the battery by a power generation engine, and to treat exhaust gas from the engine with a catalyst, the hybrid vehicle selecting a manner mode in which power generation using the engine is stopped. The catalyst warm-up control method performs catalyst warm-up control such that when the temperature of the catalyst becomes lower than a normal threshold temperature for activating the catalyst, the target rotation speed of the engine is controlled to a first warm-up required rotation speed at which the catalyst can be heated to a temperature that is higher than the normal threshold temperature. When the manner mode is selected, control is performed when temperature of the catalyst becomes lower than a manner mode threshold temperature that is equal to or less than the normal threshold temperature.

Catalyst warm-up control method for hybrid vehicle and catalyst warm-up control apparatus for hybrid vehicle

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Tokyo, Japan

Takashi Kamijo