Renaissance Energy Research Corporation

Sumitomo Chemical Company, Limited

Japan Aerospace Exploration Agency

Renaissance Energy Resarch Corporation

Yasato Kiyohara

Osamu Okada

Nobuaki Hanai

Peng Yan

Junya Miyata

Masaaki Teramoto

Sayaka Ishii

Megumi Nagano

Yudai Ota

Eiji Kamio

Yoshihito Okubo

Atsushi Yamamoto

Masato Sakurai

Shinichi Furukawa

Tamotsu Nonouchi

Pen Yan

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 facilitated COtransport membrane having an improved COpermeance and an improved CO/Hselectivity. The facilitated COtransport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a COcarrier and a COhydration catalyst. Further preferably, the COhydration catalyst at least has catalytic activity at a temperature of 100&#xb0; C. or higher, has a melting point of 200&#xb0; C. or higher, or is soluble in water.

Method for separating COusing facilitated COtransport membrane

Provided are a COgas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation membrane module including the same, the COgas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).

Carbon dioxide gas separation membrane, method for manufacturing same, and carbon dioxide gas separation membrane module

The present invention provides a composition for a COgas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.

Composition for COgas separation membrane, COgas separation membrane and method for producing same, and COgas separation membrane module

[object Object]

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.

Growing community of inventors

Kyoto, Japan

Yasato Kiyohara