摘要:
A separation membrane according to the present invention is characterized by having a porous tube containing an alumina as a main component and an attachment member disposed in a connection position of the porous tube, wherein the porous tube and the attachment member are bonded by a ceramic oxide-based bonding agent containing 17 to 48 wt % of SiO2, 2 to 8 wt % of Al2O3, 24 to 60 wt % of BaO, and 0.5 to 5 wt % of ZnO as essential components and containing at least one of La2O3, CaO, and SrO, and a thin zeolite layer is formed on a surface of the porous tube. The attachment member is bonded to the porous tube before the formation of the zeolite layer. Therefore, the bonding agent can have a melting temperature higher than 600° C., which is the upper heatproof temperature limit of the zeolite. Thus, the ceramic oxide material for the bonding agent can be selected from a wider range of compositions such as glass compositions (without limitations on the glass softening temperature).
摘要翻译:根据本发明的分离膜的特征在于具有以氧化铝为主要成分的多孔管和设置在多孔管的连接位置的附着构件,其中多孔管和附着构件通过陶瓷氧化物 的基于粘合剂,其包含17至48重量%的SiO 2,2至8重量%的Al 2 O 3,24至60重量%的BaO和0.5至5重量%的ZnO作为必要组分,并且包含至少一种La 2 O 3,CaO, 和SrO,并且在多孔管的表面上形成薄的沸石层。 在形成沸石层之前,将附着构件结合到多孔管。 因此,粘合剂的熔融温度可以高于沸点的上限耐热温度高于600℃。 因此,用于粘合剂的陶瓷氧化物材料可以从更宽范围的组合物中选择,例如玻璃组合物(对玻璃软化温度没有限制)。
摘要:
To reduce an influence of concentration polarization in a simple structure without an outer membrane element 32 and baffles, reduce a manufacturing cost of a module, and reduce a risk of damaging a membrane surface during manufacture. A plurality of horizontal cylindrical membrane elements 32 are disposed to form a row in a vertical direction in a module main body 11. An inside of each of the membrane elements is depressurized. A treatment liquid is sprayed from above the uppermost membrane element 32 so as to form a falling liquid membrane on outer faces of the respective membrane elements 32.
摘要:
The present invention is to provide a VP dewatering method being applicable over a wide range, having good handling properties, and being economically efficient and highly energy-saving, which comprises compression-pressuring a dewatered vapor product to elevate a condensation temperature thereof and then re-using the same as a heat source for vaporizing a supply liquid. In dewatering a water-containing organic substance which is a liquid starting material according to a vapor permeation membrane separation method, a dewatered organic substance vapor discharged from a membrane module is pressurized with a compressor to elevate the condensation temperature of the vapor and then the vapor is fed to a vaporizer of said method to collect and use the latent heat of condensation thereof.
摘要:
A separation membrane module is provided with a module main body 11, an upper horizontal partition plate 21 which is positioned in an upper portion within the module main body 11 so as to form an upper fluid channel 22, a lower horizontal partition plate 23 which is positioned in a lower portion within the module main body 11 so as to form a lower fluid channel 24, a plurality of vertical outer tubes 13 which are fixed between the upper horizontal partition plate 21 and the lower horizontal partition plate 23, and vertical tubular membrane elements 21 which are put through the respective outer tubes 13 with a gap. An upper end of the gap between each of the outer tubes 13 and the membrane elements 12 put there through is joined with the upper fluid channel 22, and a lower end of the gap is joined with the lower fluid channel 24. An upper end opening of each of the membrane elements 12 is open to an outer side of the module main body 11, and a lower end opening each of the membrane elements 12 is closed. A vertical partition plate 28 is provided in any one of the upper fluid channel 22 and the lower fluid channel 24 so as to form an inlet chamber 22A and an outlet chamber 22B.
摘要:
The present invention is to provide a VP dewatering method being applicable over a wide range, having good handling properties, and being economically efficient and highly energy-saving, which comprises compression-pressuring a dewatered vapor product to elevate a condensation temperature thereof and then re-using the same as a heat source for vaporizing a supply liquid. In dewatering a water-containing organic substance which is a liquid starting material according to a vapor permeation membrane separation method, a dewatered organic substance vapor discharged from a membrane module is pressurized with a compressor to elevate the condensation temperature of the vapor and then the vapor is fed to a vaporizer of said method to collect and use the latent heat of condensation thereof.
摘要:
A separation membrane according to the present invention is characterized by having a porous tube containing an alumina as a main component and an attachment member disposed in a connection position of the porous tube, wherein the porous tube and the attachment member are bonded by a ceramic oxide-based bonding agent containing 17 to 48 wt % of SiO2, 2 to 8 wt % of Al2O3, 24 to 60 wt % of BaO, and 0.5 to 5 wt % of ZnO as essential components and containing at least one of La2O3, CaO, and SrO, and a thin zeolite layer is formed on a surface of the porous tube. The attachment member is bonded to the porous tube before the formation of the zeolite layer. Therefore, the bonding agent can have a melting temperature higher than 600° C., which is the upper heatproof temperature limit of the zeolite. Thus, the ceramic oxide material for the bonding agent can be selected from a wider range of compositions such as glass compositions (without limitations on the glass softening temperature).
摘要翻译:根据本发明的分离膜的特征在于具有以氧化铝为主要成分的多孔管和设置在多孔管的连接位置的附着构件,其中多孔管和附着构件通过陶瓷氧化物 的基于粘合剂,其包含17至48重量%的SiO 2,2至8重量%的Al 2 O 3,24至60重量%的BaO和0.5至5重量%的ZnO作为必要组分,并且包含至少一种La 2 O 3,CaO, 和SrO,并且在多孔管的表面上形成薄的沸石层。 在形成沸石层之前,将附着构件结合到多孔管。 因此,粘合剂的熔融温度可以高于沸点的上限耐热温度高于600℃。 因此,用于粘合剂的陶瓷氧化物材料可以从更宽范围的组合物中选择,例如玻璃组合物(对玻璃软化温度没有限制)。
摘要:
In the carbon dioxide separation system, a mixed gas having a carbon dioxide concentration of 3 to 75% is introduced into a primary carbon dioxide separation device equipped with a zeolite membrane for carbon dioxide separation to produce a primary permeated gas having a carbon dioxide concentration of 80% or more on the permeate side of the zeolite membrane and also reduce the carbon dioxide concentration of a primary gas on the non-permeate side of the zeolite membrane to 3 to 15%. Next, the primary gas on the non-permeate side is introduced into a secondary carbon dioxide separation device that employs an amine absorption method or a pressure swing adsorption (PSA) method to produce a secondary separated gas having a carbon dioxide concentration of 80% or more separated by the separation device and also produce a carbon-dioxide-removed gas having a carbon dioxide concentration of 2% or less.
摘要:
In a separation membrane module in a module main body, an upper horizontal partition plate forms an upper fluid channel, a lower horizontal partition plate forms a lower fluid channel, a plurality of vertical outer tubes are fixed between the upper horizontal partition plate and the lower horizontal partition plate, and vertical tubular membrane elements extend through the respective outer tubes with a gap. An upper end of the gap is in communication with the upper fluid channel and a lower end of the gap is in communication with the lower fluid channel. An upper end opening of each of the membrane elements is open to outside of the module main body and a lower end opening each of the membrane elements is closed. A vertical partition plate is provided in either the upper fluid channel or the lower fluid channel to form an inlet chamber and an outlet chamber.