Renaissance Energy Research Corporation

Sumitomo Chemical Company, Limited

Arkray, Inc.

Japan Aerospace Exploration Agency

Masaaki Teramoto

Osamu Okada

Nobuaki Hanai

Hideto Matsuyama

Yasato Kiyohara

Reza Yegani

Keiko Shimada

Kaori Morimoto

Kenji Nagakawa

Takehiro Nakasuji

Eiji Kamio

Susumu Nishino

Tomomichi Tsujimoto

Yoshiyuki Kawase

Masato Sakurai

Junya Miyata

Yudai Ota

Hisaaki Miyamoto

Nobutaka Kodama

Takenori Kitaura

Shinichi Furukawa

Tamotsu Nonouchi

A gas separation apparatus includes a separation membrane module including at least one gas separation membrane element in a housing, a casing for blocking external air, and a heat source unit for adjusting a temperature of a heat medium with which the casing is filled. The casing holds greater than or equal to two separation membrane modules.

Gas separation apparatus and gas separation method

Provided is a method for removing COcomprising: supplying a gas to be processed containing CO, Nand Oto a feed side of a CO/Oselective permeation membrane within a temperature range of 15&#xb0; C. to 50&#xb0; C.; generating water vapor and supplying the water vapor to the CO/Oselective permeation membrane; selectively removing COfrom the gas to be processed by permeating COin the gas to be processed from the feed side to a permeate side of the COselective permeation membrane selectively to Oand Nin the gas to be processed; and using a COfacilitated transport membrane having CO/Oselectivity and CO/Nselectivity within the temperature range as the COselective permeation membrane, the COfacilitated transport membrane being configured with a hydrophilic polymer containing an amino acid and a deprotonating agent for preventing protonation of an amino group of the amino acid supported by a porous membrane, wherein a COconcentration in the gas to be processed is 3 mol % or less on a dry basis.

Method and apparatus for removing CO2

Provided is a method for separating, from a raw gas containing a specific gas, the specific gas using a gas separation membrane module. The gas separation membrane module includes a housing and a gas separation membrane element enclosed in the housing. The gas separation membrane element includes a gas separation membrane including a hydrophilic resin composition layer for selectively allowing for permeation of the specific gas. The method includes the steps of: increasing pressure in an interior of the gas separation membrane module; increasing a temperature in the interior of the gas separation membrane module; and feeding a raw gas to the interior of the gas separation membrane module in that order.

Gas separation method

In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing at least carbon dioxide, nitrogen and water vapor, the energy utilization efficiency thereof is improved. The gas separation apparatus is constructed to include a first separation membraneand a second separation membranethat are made of different materials. When the first mixture gas is supplied, the first separation membraneseparates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membraneseparates water vapor that permeates through the second separation membraneby allowing water vapor to permeate selectively.

Gas separation apparatus, membrane reactor, and hydrogen production apparatus

In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing a predetermined major component gas, carbon dioxide, and water vapor, the energy utilization efficiency thereof is improved. Also, by utilizing the function of this gas separation apparatus, a membrane reactor and a hydrogen production apparatus exhibiting high energy utilization efficiency are provided. The gas separation apparatus is constructed to include a first separation membraneand a second separation membranethat are made of different materials. When the first mixture gas is supplied at a temperature of 100&#xb0; C. or higher, the first separation membraneseparates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membraneseparates water vapor that permeates through the second separation membraneby allowing water vapor to permeate selectively.

A CO-facilitated transport membrane of excellent carbon dioxide permeability and CO/Hselectivity, which can be applied to a COpermeable membrane reactor, is stably provided. The CO-facilitated transport membrane is formed such that a gel layerobtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane. More preferably, a gel layer supported by a hydrophilic porous membraneis coated with hydrophilic porous membranesand

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The present invention provides a colorimetric method that can perform a simple and reliable analysis in a short time. The method includes transferring an electron from an analyte to a coloring reagent that produces color by reduction via a mediator by using an oxidoreductase; and performing qualitative or quantitative analysis of the analyte by measuring color produced in the coloring reagent. The enzyme reaction of this method is a single stage reaction, and the color production reaction occurs via the mediator. Therefore, the measurement can be performed in a short time. Since this reaction requires neither hydrogen peroxide nor oxygen, the measured values are highly reliable.

Colorimetric method and reagent used for the same

The present invention provides a calorimetric method that can perform a simple and reliable analysis in a short time. The method includes transferring an electron from an analyte to a coloring reagent that produces color by reduction via a mediator by using an oxidoreductase; and performing qualitative or quantitative analysis of the analyte by measuring color produced in the coloring reagent. The enzyme reaction of this method is a single stage reaction, and the color production reaction occurs via the mediator. Therefore, the measurement can be performed in a short time. Since this reaction requires neither hydrogen peroxide nor oxygen, the measured values are highly reliable.

Growing community of inventors

Kyoto, Japan

Masaaki Teramoto