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    • 2. 发明授权
    • Catalytically active mass for the exchange of hydrogen isotopes between
streams of gaseous hydrogen and liquid water
    • 催化活性物质用于在气态氢气和液态水流之间交换氢同位素
    • US4228034A
    • 1980-10-14
    • US959712
    • 1978-11-13
    • John P. ButlerJohn H. RolstonJames den HartogFred W. R. MolsonJohn W. Goodale
    • John P. ButlerJohn H. RolstonJames den HartogFred W. R. MolsonJohn W. Goodale
    • B01D59/32B01J23/00B01J23/42B01J33/00C01B4/00C01B5/02B01J31/02
    • B01J23/42B01D59/32C01B5/02
    • For the exchange of hydrogen isotopes between streams of gaseous hydrogen and liquid water, wherein the streams are at a temperature in the range 273 to 573K are brought into contact with one another and a catalytically active mass, an improved catalytically active mass is provided comprising an inherently hydrophotic, porous, polytetrafluoroethylene matrix and partially platinized carbon particles dispersed throughout the whole of the porous polytetrafluoroethylene matrix in the weight ratio of 1:1 to 3:1 of polytetrafluoroethylene to partially platinized high surface area carbon particles. The inherently hydrophobic, porous, polytetrafluoroethylene matrix allows the catalytically active metal to catalyze the hydrogen isotope exchange reaction between hydrogen gas and water vapor in the presence of liquid water while retarding loss of activity of the catalytically active metal by contact of the metal catalyst with liquid water. This catalyzed chemical isotope exchange proceeds simultaneously with isotope exchange from water vapor to liquid water by a non-catalyzed, physical evaporation and condensation exchange reaction. The efficient coupling of these two isotopic transfer steps which results in a rapid overall isotopic exchange between hydrogen and liquid water without a pronounced loss of activity of the catalytically active mass is dependent upon the weight ratio of the catalytically active platinized carbon to the polytetrafluoroethylene matrix being in the above mentioned range of 1:1 to 3:1.
    • 为了在气态氢和液态水流之间交换氢同位素,其中流在273至573K的温度下彼此接触并具有催化活性物质,提供改进的催化活性物质,其包含 固有的疏水性,多孔,聚四氟乙烯基体和部分镀铂的碳颗粒分散在整个多孔聚四氟乙烯基体中,聚四氟乙烯的重量比为1:1至3:1,同时部分镀铂的高表面积碳颗粒。 固有的疏水性,多孔的聚四氟乙烯基体允许催化活性金属在液态水的存在下催化氢气和水蒸气之间的氢同位素交换反应,同时通过金属催化剂与液体的接触延缓催化活性金属的活性损失 水。 这种催化的化学同位素交换同时进行,通过非催化的物理蒸发和冷凝交换反应从水蒸汽到液态水的同位素交换。 这两个同位素转移步骤的有效耦合导致氢和液态水之间的快速总体同位素交换而没有显着的催化活性物质的活性损失取决于催化活性铂化碳与聚四氟乙烯基体的重量比为 在上述范围为1:1至3:1。
    • 3. 发明授权
    • Process for the exchange of hydrogen isotopes using a catalyst packed
bed assembly
    • 使用催化剂包装床组件进行氢同位素交换的方法
    • US4126667A
    • 1978-11-21
    • US733417
    • 1976-10-18
    • John P. ButlerJames DEN HartogFred W. R. Molson
    • John P. ButlerJames DEN HartogFred W. R. Molson
    • B01D59/32B01J23/00B01J23/40B01J33/00C01B4/00C01B5/00
    • C01B4/00B01D59/32B01J23/40
    • A process for the exchange of hydrogen isotopes between streams of gaseous hydrogen and liquid water is described, wherein the streams of liquid water and gaseous hydrogen are simultaneously brought into contact with one another and a catalyst packed bed assembly while at a temperature in the range 273.degree. to 573.degree. K. The catalyst packed bed assembly may be composed of discrete carrier bodies of e.g. ceramics, metals, fibrous materials or synthetic plastics with catalytically active metal crystallites selected from Group VIII of the Periodic Table, partially enclosed in and bonded to the carrier bodies by a water repellent, water vapor and hydrogen gas permeable, porous, polymeric material, and discrete packing bodies having an exterior surface which is substantially hydrophilic and relatively non-catalytically active with regard to hydrogen isotope exchange between hydrogen gas and water vapor to that of the catalyst bodies. The catalytically active metal crystallites catalyze the hydrogen isotope exchange reaction between hydrogen gas and water vapor in the presence of liquid water while the polymeric material retards the loss of activity of the catalytically active metal crystallites caused by contact thereof by the liquid water. This catalyzed chemical isotope exchange proceeds simultaneously with isotope exchange from water vapor to liquid water by a non-catalyzed, physical evaporation and condensation exchange reaction and the addition of the discrete hydrophilic packing serves to increase this rate of isotope exchange between the water vapor and the liquid water. In other embodiments the catalyst structure and hydrophilic packing structure comprise a mixture of corrugated and flat metal sheet or gauze or a mixture of corrugated metal sheets or gauze packed or rolled such that fluid flow passage interstices are provided between the sheets and with the catalytically active metal crystallites deposited on some of the metal sheets or gauze.
    • 4. 发明授权
    • Ordered bed packing module
    • 有序床包装模块
    • US4471014A
    • 1984-09-11
    • US363304
    • 1982-03-29
    • James den HartogJohn P. ButlerFred W. R. Molson
    • James den HartogJohn P. ButlerFred W. R. Molson
    • B01D59/32B01J10/00B01J19/32B01J35/04B32B3/28
    • B01J19/32B01D59/32B01J10/007B01J35/04B32B3/28B01J2219/32206B01J2219/3221B01J2219/32213B01J2219/32227B01J2219/32258B01J2219/32279B01J2219/32483Y10S261/72Y10S428/906Y10T428/24694Y10T428/24727Y10T428/24777
    • In one embodiment of the invention a catalyst packing module is provided which greatly enhances the vapour-liquid transfer rate in the overall hydrogen-liquid water isotopic exchange reaction between streams of gaseous hydrogen and liquid water. The catalyst packing module comprises alternate layers of plane sheet and corrugated sheet and is produced by rolling at least one plane sheet and at least one corrugated sheet together into a right cylinder in a jelly roll configuration. The plane sheet is a woven, knitted or felted cloth of a textile material which wicks water over its surface and the corrugated sheet is an open mesh of metal coated with a porous matrix of polytetrafluoroethylene with exposed, partially platinized carbon particles therein. This catalyst packing module maximizes the hydrophilic surface area per unit volume of packing for the vapour-liquid transfer reaction and also the surface area of the support material (carrier) for the hydrophobic catalyst. Although the packing is tight, high gas and liquid flow can be used without flooding the bed because the hydrophilic surfaces are separated by hydrophobic spacers and because the hydrophilic surface have a wicking action. In other embodiments of the invention the packing module is used to advantage for any gas-liquid transfer reaction but in this application the corrugated mesh is a metal cloth, does not support a catalyst and is made hydrophobic with, or of, some suitable polymeric material such as polytetrafluoroethylene, polyethylene, polystyrene, polymethacrylate, polypropylene etc.
    • 在本发明的一个实施方案中,提供催化剂填充模块,其极大地提高气态氢气和液态水流之间的整个氢 - 液体水同位素交换反应中的气液传递速率。 催化剂包装组件包括平面片和波纹片的交替层,并且通过将至少一个平面片和至少一个波纹片一起滚压成一个具有果冻卷构型的右圆柱体而制成。 平面片是纺织材料的织造,针织或毡制布,其在其表面上吸水,波纹片是涂覆有聚四氟乙烯多孔基体的金属开放网,其中暴露的部分镀铂的碳颗粒。 该催化剂填充模块使用于气 - 液转移反应的每单位体积填料的亲水表面积以及用于疏水催化剂的载体材料(载体)的表面积最大化。 虽然包装紧密,但是可以使用高气体和液体流动而不会淹没床,因为亲水表面被疏水间隔物分离,并且因为亲水表面具有芯吸作用。 在本发明的其它实施方案中,包装模块用于任何气液转移反应,但是在该应用中,波纹网是金属布,不支持催化剂,并且与一些合适的聚合材料制成疏水性 如聚四氟乙烯,聚乙烯,聚苯乙烯,聚甲基丙烯酸酯,聚丙烯等。