Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

The Kansai Electric Power Co., Inc.

Atsuhiro Yukumoto

Yoshio Seiki

Tsuyoshi Oishi

Haruaki Hirayama

Hiroshi Tanaka

Takuya Hirata

Hiroyuki Osora

Hiromitsu Nagayasu

Takahiko Endo

Yukio Tanaka

Tatsuya Tsujiuchi

Wataru Matsubara

Kouji Horizoe

Shinya Tachibana

Yasumichi Aoki

Akira Noma

Akiyori Hagimoto

Susumu Okino

Nobuyuki Ukai

Masaki Yushima

Tsutomu Hamada

Kazuhiro Kawai

Jun Satou

Katsuhiko Shinoda

Takeshi Amari

Shinsuke Nakatani

Toshiya Akiba

Kazuto Kobayashi

Noriaki Senba

Kazuo Ishida

Shinji Ogino

Takeo Shinoda

Hiroyuki Furuichi

Yudai Kato

Shimpei Kawasaki

Hiroshi Shiomi

Yoshinori Kajiya

Katsufumi Inoue

Akira Oguchi

Hideo Kashiwagi

Shuichi Kashima

Nobuyuki Nishioka

Koichiro Yoshitoku

Kazuhiro Takanabe

Yoshi Seiki

A waste treatment systemfor performing a hydrothermal treatment of wastes includes a hydrothermal treatment devicefor performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facilityfor storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generatorfor generating the steam to be supplied to the hydrothermal treatment device. The heat recovery steam generatoris configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility

Waste treatment system and waste treatment method

A reforming devicefor producing a reformed gas from a methane-containing gas containing methane and carbon dioxide includes a reforming reaction tubecontaining a catalyst layerfilled with a reforming catalystfor reforming the methane-containing gas, and a multilayer pipefor spraying a cooling fluid to an outer peripheral surface of the reforming reaction tubeat a position corresponding to a gas inlet of the catalyst layerin a length direction of the catalyst layer

Reforming device and reforming system

A reclaiming method is disclosed including conducting evaporation by introducing a part of the absorbent to recover COor HS in a gas in a closed system recovery unit and separating a degraded substance contained in the absorbent from the absorbent to be introduced into an evaporator and obtain recovery steam containing an absorbent and COor HS by a heating section that is provided on a circulation line that circulates in the evaporator; and removing ionic degraded substance by cooling the concentrate obtained in the evaporation and removing an ionic degraded substance in the concentrate after the cooling, wherein a purified concentrate from which the ionic degraded substance has been removed is reused as a purified absorbent.

Reclaiming method

An absorption column is equipped with: a COabsorption section absorbing COfrom CO-containing exhaust gas using a lean solution; a main rinse section recovering an entrained COabsorbent using rinse water; a rinse water circulation line circulating a rinse water containing the COabsorbent recovered in a liquid storage section of the main rinse section; a pre-rinse section provided between the COabsorption section and the main rinse section; a rinse section extraction liquid supply line extracting a portion of the rinse water containing the COabsorbent from the rinse water circulation line, and introducing the same into a reflux section of an absorption liquid regeneration tower; and a refluxed water supply line extracting a portion of refluxed water, introducing the same as pre-rinse water for the pre-rinse section, and connected on the pre-rinse section side.

COrecovery device and COrecovery method

A biomass fuel manufacturing plant includes: a separating section that separates oil and water from oil-containing wastewater discharged from an essential oil plant that refines essential oil from fruits containing fats and oils, and separates the oil and water into POME oil and treated water; a discharged oil supply line that supplies at least one of the POME oil, discharged oil at compressing discharged when compressing empty fruit bunches, and discharged oil at crushing discharged when crushing the empty fruit bunches, to at least one or more locations of a carbonization section that generates carbide by performing heat treatment with respect to the empty fruit bunches discharged from the essential oil plant and a fuel generation section that generates a fuel from the carbide.

Biomass fuel manufacturing plant, manufacturing plant system, and biomass fuel manufacturing method

A gas liquefaction apparatus includes at least a source-gas supply line that supplies source gas; a room-temperature heat exchanger, a preliminary-cooling heat exchanger, and a liquefaction/supercooling heat exchanger that are provided in series sequentially in the source-gas supply line and that cool the source gas; a separation drum that separates the source gas containing a condensate, which has been cooled by heat exchange up to a liquefaction temperature of the source gas or below, into a gas component and a liquefied component; and a refrigerant-gas supply line that uses a gas component separated by the separation drum as refrigerant gas to supply the refrigerant gas in a direction opposite to a supply direction of the source gas, in order of the liquefaction/supercooling heat exchanger, the preliminary-cooling heat exchanger, and the room-temperature heat exchanger.

Gas liquefaction apparatus and gas liquefaction method

An evaporator is provided that separates, from a degraded substance, an absorbent branched off and introduced, a heating section which is interposed on a circulation line Lthat circulates the absorbent introduced into this evaporator, heats the circulating absorbent to obtain gaseous recovery steam containing a vaporized absorbent and CO, a concentrate branch line Lthat branches off a part of the absorbent circulating through the circulation line Lat a bottom of the evaporator from the circulation line Las a concentrate, a cooler that is interposed on this concentrate branch line Land cools the concentrate, an ionic degraded substance removal section that removes an ionic degraded substance in the cooled concentrate, and a purified absorbent discharge line Lthat reuses the concentrate as a purified absorbent from which the ionic degraded substance is removed.

Reclaiming device, reclaiming method, and recovery unit for COor HS or both

An absorbing liquid which absorbs the COor HS or both contained in a gas, and which comprises 1) at least one tertiary-monoamine main agent selected from a tertiary-monoamine group and 2) at least one secondary-diamine first additive selected from a secondary-diamine group, the secondary-diamine concentration being within the range of 0.05 to 0.5 in terms of the additive concentration index represented by the following expression (I). (Additive concentration index)=[(secondary-diamine acid dissociation index) (pKa)/(tertiary-monoamine acid dissociation index) (pKa)] (index ratio)&#xd7;[(secondary-diamine molar concentration) (mol/L)/(tertiary-monoamine molar concentration) (mol/L)] (molar ratio) (I).

Absorbing liquid, method for preparing absorbing liquid, and device and method for removing CO2 or H2S or both

A COrecovery unit and a COrecovery method capable of having an excellent COabsorption rate and saving energy are provided. A COrecovery unit of the invention includes: a COabsorber which includes an upper COabsorption unit obtaining a COabsorbent by causing a flue gas containing COto contact a COabsorbent and a lower COabsorption unit obtaining a COabsorbent by causing the COabsorbent to contact a flue gas containing CO; a COabsorbent regenerator which obtains the COabsorbent by heating the COabsorbent a thermometer which measures a temperature of the COabsorbent supplied from the COabsorber to the COabsorbent regenerator; and a control device which controls a temperature of the COabsorbent supplied to the lower COabsorption unit based on the temperature of the COabsorbent measured by the thermometer.

COrecovery unit and COrecovery method

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Provided are a reclaimerthat introduces, through a branch line L, and stores a partof an absorbentregenerated in a regenerator of a recovery unit that recovers COor HS in a gas, a first alkaline agent supply sectionA that supplies an alkaline agentto the reclaimer, a heating sectionthat heats the absorbentstored in the reclaimerand to which the alkaline agenthas been mixed to obtain recovered vapor, a first vapor coolerA that cools the recovered vapordischarged from the reclaimerthrough a vapor line L, a first gas-liquid separatorA that separates a coexisting substanceentrained in the cooled recovered vaporinto a recovered absorption agent vapor (gas)and the liquid coexisting substanceby gas-liquid separation, and an introduction line Lthat introduces the recovered absorption agent vaporseparated in the first gas-liquid separatorA into a regenerator

A gas-liquid contactor is obtained by including a header pipe for supplying washing water, in a direction perpendicular to a vertical axis direction, the header pipe being disposed above a packed bed contacting section through which exhaust gas moves upward and passes; and spray nozzles for discharging spray water, the nozzles being disposed, in an upward orientation, with predetermined intervals on the header pipe. The spray water that has been discharged from the spray nozzles is supplied at a low liquid flow rate. The discharged spray water becomes a liquid film and falls downward along the surface of the header pipe, and then falls and spreads in the packed bed contacting section, so that the washing water is made to contact the exhaust gas moving upward through the packed bed contacting section. Accordingly, the washing water is used to clear and remove water-soluble substances contained in the exhaust gas.

A gas-liquid contactor includes: a plurality of packing material sections through which exhaust gas passes; and a plurality of liquid distributors provided upon each of the plurality of packing material sections, dispersing a COabsorption liquid caused to come in contact with the exhaust gas, and supplying the COabsorption liquid to the plurality of packing material sections. The plurality of packing material sections include a first packing material layer and a second packing material layer that have provided therein flow paths () for the COabsorption fluid that each extend in prescribed directions (D, D). The first packing material layer and the second packing material layer are characterized by being laminated such that the directions (D, D) of extension of the flow paths () in the flow direction (D) for the exhaust gas are different from each other.

Provided are a reclaimer that introduces a part of an absorbent that has absorbed COor HS in a flue gas through an introduction line and stores the absorbent, a heating section that heats the absorbent stored in the reclaimer to obtain recovered vapor, and a mixing tank disposed on the introduction line through which the absorbent is introduced into the reclaimer, and which introduces an absorbent (lean solution) and an alkaline agent for mixing thereof.

Growing community of inventors

Tokyo, Japan

Atsuhiro Yukumoto