Toray Industries, Inc.

Takaaki Mihara

Tomoyuki Horiguchi

Kosaku Takeuchi

Kentaro Tanaka

Dai Kondo

Takashi Ochi

Shuichi Nonaka

Akira Kishiro

Norio Suzuki

Yuki Yamashita

Shunsuke Horiuchi

Yuhei Maeda

Katsuhiko Mochizuki

Yoshitsugu Funatsu

Daisuke Yamamoto

Hiroo Katsuta

So Kakiyama

Masahiro Kitabata

Toshiaki Kimura

Katsuhiko Mochiduki

Nahoko Yahagi

A gas separation membrane including a separation functional layer in at least part thereof, the gas separation membrane having a fibrous shape or film-like shape, the separation functional layer including a matrix and particles. Provided are a gas separation membrane and a gas separation membrane module capable of preventing breakage of the gas separation membrane during the operation, and allowing long-term stable production of excellent permeation and separation properties.

Gas separation membrane and gas separation membrane module

A gas separation membrane includes a composite membrane, the composite membrane including: a gas separation functional layer; and a compound having a composition different from a compound constituting the gas separation functional layer, wherein the presence ratio of the gas separation functional layer at at least one surface of the gas separation membrane is not less than 90% and less than 100%. Provided is a gas separation membrane capable of suppressing damage of the gas separation functional layer during the preparation process of a gas separation membrane module or during the use of a gas separation membrane module even when the gas separation functional layer includes a site having low strength.

Gas separation membrane, gas separation membrane module, and production method for gas separation membrane

An object of the present invention is to suppress a defect in a carbon membrane for fluid separation use with a dense carbon layer formed on a porous carbon support. The present invention is a carbon membrane for fluid separation use, including a dense carbon layer formed on a porous carbon support, wherein X<Y when the ratio of the content of silicon atoms to the total content of carbon atoms and silicon atoms at the center position in the membrane thickness direction of the porous carbon support is X (atomic %), and the ratio of the content of silicon atoms to the total content of carbon atoms and silicon atoms at the position of 3 μm from the interface between the porous carbon support and the dense carbon layer to the porous carbon support side is Y (atomic %).

Carbon membrane for fluid separation use

Stable maintenance of high separation performance of a separation membrane having a separation layer comprising a compact carbon layer is described in addition to a separation membrane having a separation layer comprising a compact carbon layer, wherein particles are attached to the compact carbon layer, recesses are present in the compact carbon layer, and the particles are at least partially stuck in the recesses.

Separation membrane

The present invention provides a porous carbon fiber which has an excellent permeation amount and excellent pressure resistance, which is prevented from the occurrence of detachment or cracking at an interface, and which can exhibit excellent properties needed for use as a support for a fluid separation membrane. The present invention is a porous carbon fiber having a bicontinuous porous structure, wherein the average value Rof the R value of the outer surface and the R value of the inside is 1.0 or more and 1.8 or less, the absolute value &#x394;R of the difference between the R value of the outer surface and the R value of the inside is 0.05 or less, and R value is a carbonization progression degree calculated from a Raman spectrum in accordance with the following formula:value=(intensity of scattering spectrum at 1360 cm)/(intensity of scattering spectrum at 1600 cm).

Porous carbon fiber and fluid separation membrane

The present invention provides a carbon membrane for fluid separation that can suppress the breakage of a carbon membrane installed in a separation module during a vacuum desorption step before permeation of a fluid or during permeation of a fluid. The present invention provides a carbon membrane for fluid separation including a porous carbon support and a dense carbon layer provided on the porous carbon support, wherein the porous carbon support has an Rvalue of 1.0 or less, where the Rvalue is an R value (peak intensity of D-band (1360 cm)/peak intensity of G-band (1580 cm)) calculated from a Raman spectrum.

Carbon membrane for fluid separation and method for manufacturing the same

A carbon membrane for fluid separation, i.e., a fiber-form carbon membrane for fluid separation, has protrusions having a height difference of at least 1 &#x3bc;m formed on the fiber surface. In the carbon membrane for fluid separation, adhesion between membranes is inhibited and clogging tends not to occur when a gas mixture containing water vapor is separated. A carbon membrane module for fluid separation that includes the fibrous carbon membrane for fluid separation is also disclosed.

Carbon membrane for fluid separation and carbon membrane module for fluid separation

A fluid separation membrane has high compression strength in the fiber cross-section direction (direction orthogonal to the fiber axis). The fluid separation membrane is obtained by an organic polymer layer being formed on the surface of porous carbon fibers having a co-continuous porous structure. A fluid separation membrane module and porous carbon fibers having a fully co-continuous porous structure are also disclosed.

Fluid separation membrane, fluid separation membrane module, and porous carbon fiber

The present invention relates to a particulate porous carbon material having a continuous porous structure, the particulate porous carbon material satisfying the following A to C: A: branch portions forming the continuous porous structure have an aspect ratio of 3 or higher; B: the branch portions have aggregated through joints interposed therebetween, the number of the aggregated branch portions (N) being 3 or larger; C: a ratio of the number of the aggregated branch portions (N) to the number of the joints (n), N/n, is 1.2 or larger.

Particulate porous carbon material, particulate carbon material aggregate, and production method for particulate porous carbon material

Provided is an electrode material which has a co-continuous porous structure configured from a carbon skeleton and voids and which, by providing a large surface area, has excellent electrical conductivity, thermal conductivity, etc. This electrode material includes a porous carbon material having a co-continuous structure portion in which a carbon skeleton and voids form a continuous structure, and in the porous carbon material, the specific surface area measured by the BET method is 1 to 4500 m/g, and the pore volume measured by the BJH method is 0.01 to 2.0 cm/g.

Electrode material, and lithium-ion battery or lithium-ion capacitor using same

The present invention relates to a porous carbon material having a co-continuous structure forming portion in which carbon skeletons and voids form continuous structures, respectively and which has a structural period of 0.002 &#x3bc;m to 3 &#x3bc;m, having pores which have an average diameter of 0.01 to 10 nm on a surface thereof, and having a BET specific surface area of 100 m/g or more.

Porous carbon material and method for manufacturing porous carbon material

The present invention provides an electrode material for metal-air batteries which has a homogeneous co-continuous structure due to a carbon skeleton and voids and is excellent in terms of permeability to and diffusibility of ions, oxygen, electrolytes, and electrolytic solutions and which, due to the formation of the carbon network, can rapidly diffuse the heat generated by battery reactions and has satisfactory electrical conductivity. The electrode material for metal-air batteries includes a porous carbon material having a co-continuous structure portion in which a skeleton constituted of carbon and voids form a co-continuous structure and which has a structural period, as calculated by X-ray scattering method or X-ray CT method, of 0.002-10 &#x3bc;m.

Electrode material for metal-air battery

The present invention provides an electrode material for an electrochemical capacitor having high surface utilization efficiency, composed of a porous carbon material capable of further contributing to higher electrostatic capacitance of the electrochemical capacitor and to development of high rate characteristics; the porous carbon material having a co-continuous structural portion in which a carbon skeleton and voids form respective continuous structures, the co-continuous structural portion having a structural period of 0.002 &#x3bc;m to 20 &#x3bc;m.

Electrode material for electrochemical capacitor, electrode coating solution for electrochemical capacitor, electrode for electrochemical capacitor, and electrochemical capacitor

The present invention provides a carbon membrane for fluid separation with which a high-pressure fluid can be separated and purified and which has excellent pressure resistance and is less apt to be damaged. The present invention relates to a carbon membrane for fluid separation, including: a core layer which has a co-continuous porous structure; and a skin layer which has substantially no co-continuous porous structure and is formed around the core layer.

Carbon membrane for fluid separation, fluid separation membrane module, and method for producing carbon membrane for fluid separation

A poly(phenylene sulfide) fiber contains 1-10% by weight of a poly(phenylene sulfide) oligomer having a weight-average molecular weight of 5,000 or less, has a difference between a cold crystallization heat quantity (&#x394;Hc) and a crystal melting heat quantity (&#x394;Hm) during temperature rising in DSC, &#x394;Hm&#x2212;&#x394;Hc, of 25 J/g or larger, and has an elongation of less than 40% and a strength of 3.0 cN/dtex or higher. The poly(phenylene sulfide) fiber has high heat resistance and chemical resistance and high strength and, despite this, has excellent suitability for high-order processing, e.g., thermal shapability, because the amorphous parts thereof have high molecular movability.

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Otsu, Japan

Takaaki Mihara