Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

Toshiba Tec Kabushiki Kaisha

Fujikura Kasei Co., Ltd.

Kenji Sano

Satoshi Takayama

Toshihiro Imada

Takeshi Gotanda

Shigeru Machida

Akiko Suzuki

Yumiko Sekiguchi

Taeko I Urano

Reiko Yoshimura

Yoshihiko Nakano

Mitsuru Udatsu

Katsuyuki Naito

Takashi Kuboki

Tomokazu Domon

Tetsuo Okuyama

Sawako Fujioka

Hideo Nagai

Hironori Fukuda

Shinji Murai

Hitomi Saito

Hideyuki Nishizawa

Kenji Todori

Hirohisa Miyamoto

Koji Asakawa

Hiroshi Yoshida

Shinya Sakurada

Toshiro Hiraoka

Toru Ushirogouchi

Yasushi Shinjo

Mitsunaga Saito

Shuji Hayase

Hideyuki Tsuji

Kazuyuki Sunohara

Shuitsu Sato

Yasunari Maekawa

Masayuki Sekimura

Yasushi Mori

Asato Kondo

Akinori Hongu

Yutaka Majima

Arisa Yamada

Yukishige Maezawa

Atsushi Kamata

Yusuke Handa

Akihiro Matsui

Koichi Tsunemi

Tatsuro Beppu

Yumiko Oyasato

Hikoji Ueda

Shin Hasegawa

Koichiro Shirota

Akira Otsu

Masanori Ogiue

Katuyuki Takano

Shinichi Sawada

According to one embodiment, a carbon dioxide adsorption-desorption device including an electrode that includes a porous composite is provided. The porous composite includes an electro-conductive component and a porous material on the electro-conductive component. The porous material has pores of an angstrom size or a nanometer size, and includes a moiety exhibiting redox activity according to electrical response.

Carbon dioxide adsorption-desorption device

A carbon dioxide fixation method includes: immersing a magnesium alloy in an aqueous solvent; blowing carbon dioxide-containing gas into the aqueous solvent; and electrically energizing and thereby subjecting the aqueous solvent to electrolysis treatment so as to produce precipitates containing magnesium carbonate. The method can be carried out in a system having: a treating bath for storing a magnesium alloy and an aqueous solvent to treat a magnesium alloy in which the magnesium alloy is treated, a gas-introducing unit for blowing carbon dioxide-containing gas into the aqueous solvent, a pair of electrodes for applying voltage to the aqueous solvent so as to conduct electrolysis treatment, and a power control unit connected to the electrodes.

Carbon dioxide fixation method and carbon dioxide fixation system

The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method employing the acidic gas absorbent, and also an acidic gas removal apparatus employing the absorbent. The acidic gas absorbent according to the embodiment comprises: a particular tertiary amine compound, such as, an alkyl dialkanol amine or a hydroxyalkyl piperazine; a halogen-free ionic surfactant; and an aqueous solvent. The embodiments provide not only the acidic gas absorbent but also an acidic gas removal method and apparatus employing the acidic gas absorbent.

Acidic gas absorbent, acidic gas removal method and acidic gas removal apparatus

According to one embodiment, an amine-containing water concentration system includes an osmotic pressure generator and a carbon dioxide introducing unit. The osmotic pressure generator includes a treatment vessel, a first chamber to which the water to be treated is supplied, a second chamber capable of storing a working medium, and a semipermeable membrane that partitions the first chamber and the second chamber, which are located in the treatment vessel. The carbon dioxide introducing unit is capable of introducing carbon dioxide into the water to be treated.

Amine-containing water concentration system and apparatus, and carbon dioxide recovery system

The embodiments provide an acidic gas absorbent kept from deterioration, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the same. The acidic gas absorbent contains an amine compound and water, and further contains superfine bubble containing inert gas wherein an average diameter of said superfine bubble is 150 nm or less. The acidic gas removal method provided here employs that absorbent. The acidic gas removal apparatus is equipped with a unit for introducing the superfine bubbles into the absorbent.

A working medium includes a first amine compound and a second amine compound. The first amine compound is a heterocyclic tertiary amine compound including a carbon atom, a nitrogen atom and a hydrogen atom, and in which a ratio (C/N ratio) of a carbon atom number to a nitrogen atom number included in one molecule is from 7 to 9. The second amine compound is a heterocyclic tertiary amine compound including a carbon atom, a nitrogen atom and a hydrogen atom. and in which a ratio (C/N ratio) of a carbon atom number to a nitrogen atom number included in one molecule is in a range of 5 or more to less than 7.

Working medium and water treatment system

The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method, and an acidic gas removal apparatus. The acidic gas absorbent according to the embodiment comprises: an amine compound having a vapor pressure of 0.001 to 10 Pa at 20&#xb0; C.; a water-soluble polymer compound having a mass-average molecular weight of 900 to 200000 and not containing a functional group having a pKa value greater than 7 except for hydroxy; and water.

The embodiment provides a composite that allows the release of acid gas, even the continuous release of acid gas, at low temperature and with a high acid-gas release rate in a regeneration tower of an acid gas removal apparatus, and a regenerator and an acid gas removal apparatus, in both of which the composite is used, and a method of acid gas removal. The composite according to the embodiment is capable of separating an acid gas from an acid gas absorbent, which has absorbed the acid gas, to regenerate the acid gas absorbent, wherein the composite contains an inorganic layered compound and an aluminum-containing oxide. Also provided are a regenerator using the composite to regenerate an acid gas absorbent that has absorbed an acid gas by allowing the acid gas absorbent to release the acid gas, and an acid gas removal apparatus equipped with the regenerator.

Acid gas removal apparatus and method

The embodiments provide an acidic gas absorbent, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the absorbent. The absorbent absorbs an acidic gas in a large amount and is hardly diffused. The acidic gas absorbent according to the embodiment comprises an amine compound represented by the following formula (1): 

The embodiments provide an acidic gas absorbent, an acidic gas removal method, and an acidic gas removal apparatus. The absorbent absorbs an acidic gas in a large amount and hardly diffuses in air. The acidic gas absorbent according to the embodiment comprises an amine compound having a sulfonyl group and two or more amino groups.

An embodiment provides a working medium to be used in a circular osmotic pressure electric power generation system. The working medium comprises water and an inducing-liquid. The working medium, under conditions of a temperature of 5&#xb0; C. to 35&#xb0; C. and a pressure of 1 atmosphere, is in (1) a state of a liquid-liquid mutually dissolved two-component mixed solution when a concentration of the water or the inducing-liquid in the total amount of the water and the inducing-liquid is 10% by weight or lower, and (2) a state of being separated into the water phase and the inducing-liquid phase when the concentration of the water or the inducing-liquid in the total amount of the water and the inducing-liquid is higher than 10% by weight.

Circulatory osmotic pressure electric power generation system and method, phase control method for working medium, and working medium for circulatory osmotic pressure electric power generation

According to one embodiment, a desalination treatment membrane includes a desalting membrane and a base material which is disposed in close contact with the desalting membrane, wherein a solid salt is fixed to the base material by a graft-polymerization.

Desalination treatment membrane

There is provided an emulsion coloring material which can be used on ordinary paper, has good color developability, and can be used for conventional erasable pens or printing inks of black or blue color, having sufficiently high densities. When use is made of an erasable emulsion coloring material capable of controlling color development and decolorization by the presence or absence of the interaction between a chromatic material and a color developer, the colored emulsion comprising a copolymer resin of at least one unit selected from styrene and styrene derivatives and at least one unit selected from an acrylic acid ester and a methacrylic acid ester having a substituent which comprises a carbon chain having 4 or more carbon atoms, coloring ability can be enhanced.

Emulsion coloring materials for ink jet printers and methods of producing the same

According to one embodiment, decolorizable color developing particle includes 41 to 50% by mass of a color material relative to the total amount, while the rest being a binder. The color material contains an amount mof a color developing compound and an amount m(m&#x3c;m) of a developer. Island portions rich in the color material are distributed within sea portion rich in the binder.

Decolorizable color developing particle comprising color components present in concentration gradient

According to one embodiment, a liquid ink includes a leuco dye, a developer, and a solvent. The developer is selected from 

Erasable liquid ink

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Tokyo, Japan

Kenji Sano