Abstract:
A method for producing a protective-layer-covered gas separation membrane includes forming a gas separation membrane having a resin layer containing a compound having a siloxane bond and satisfying a particular condition by surface oxidation treatment of a resin layer precursor containing a siloxane bond; and providing a protective layer on the resin layer before winding. A protective-layer-covered gas separation membrane is produced by the method for producing a protective-layer-covered gas separation membrane. A gas separation membrane module and a gas separation apparatus are produced by the method for producing a protective-layer-covered gas separation membrane.
Abstract:
A protective-layer-covered gas separation membrane has a gas separation membrane that satisfies specific conditions such as having a resin layer containing a compound having a siloxane bond, a protective layer located on the resin layer containing a compound having a siloxane bond of the gas separation membrane, and a porous layer on the protective layer. The protective-layer-covered gas separation membrane is produced. A gas separation membrane module and a gas separation apparatus have the protective-layer-covered gas separation membrane.
Abstract:
Provided is a gas separation membrane including a support, a separation layer, and a protective layer in this order, in which the separation layer contains inorganic particles, the protective layer contains a resin and inorganic particles having an average particle diameter of 10 nm or greater which is less than 0.34 times the film thickness of the protective layer, and the content of the inorganic particles contained in the protective layer is 40% by mass or less with respect to the content of the resin contained in the protective layer, the gas separation membrane being capable of being made into a spiral type gas separation membrane module while maintaining high permeability; and a gas separation membrane module which uses the gas separation membrane.
Abstract:
An acidic gas separation module including: a perforated hollow central tube; and a layered body that is wound on the perforated hollow central tube and has, in the following order on a porous support: an acidic gas separation layer containing a water-absorbing polymer, a carrier, and water; and a flow channel material with a network structure having a thread intersection portion and an arithmetical surface roughness for a surface contacting the acidic gas separation layer in the thread intersection portion of 35 μm or less. The acidic gas separation module suppresses generation of flocculated water by maintaining the generation of turbulent flow in the flow channel material, effectively suppresses damage to the surface of the acidic gas separation layer by the flow channel material in the winding-on process during manufacture, and exhibits excellent acidic gas separation efficiency.
Abstract:
Provided are a method for producing a protein food material, including a step of pressurizing and heating a protein-containing mixture containing a vegetable protein and water in a biaxial extruder to knead the protein-containing mixture, and extruding the kneaded protein-containing mixture from a jetting die provided in the biaxial extruder, in which a temperature of the jetting die is 95° C. or higher and 120° C. or lower, and a length of the jetting die in an extrusion direction is 150 mm or more; and a protein food material.
Abstract:
The present disclosure provides a freeze-drying container which includes a container body storing liquid to be freeze-dried and a first heat transfer body being in contact with the liquid to be freeze-dried and a cold source and in which the container body is a non-heat transfer body or a second heat transfer body of which at least a part is in contact with a liquid surface of the liquid to be freeze-dried and the cold source and at least one of a first shortest distance between an arbitrary point on the liquid surface of the liquid to be freeze-dried and the first heat transfer body or a second shortest distance in the liquid surface between the arbitrary point on the liquid surface of the liquid to be freeze-dried and the second heat transfer body is 20 mm or less.
Abstract:
A gas separation membrane, the gas separation membrane module, and the gas separation device each have a support, a resin layer, a separation layer, and a protective layer in this order, in which the resin layer includes a compound having a siloxane bond, the protective layer is in direct contact with the separation layer, a composition of the protective layer is different from a composition of the resin layer, the composition of the protective layer is different from a composition of the separation layer, and the separation layer has a maximum value of a silicon atom content of 2 atomic % or less in a composition of a half area on a side of the protective layer in a thickness direction.
Abstract:
The gas separation membrane includes a separation layer containing a silsesquioxane compound, and a protective layer, in which a composition of the separation layer in a thickness direction is uniform.