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    • 47. 发明授权
    • Method of producing high purity steam
    • 生产高纯度蒸汽的方法
    • US08282708B2
    • 2012-10-09
    • US12066254
    • 2006-09-12
    • Jeffrey J. SpiegelmanRichard D. Blethen
    • Jeffrey J. SpiegelmanRichard D. Blethen
    • B01D53/22B01D61/00B01D3/02
    • B01D71/32B01D53/22B01D63/06B01D69/141B01D2258/0216B01D2313/18B01D2313/22Y02C20/30
    • Methods for the purification of steam, systems for purifying steam, methods for measuring and/or controlling steam flow rates, and uses for purified steam are provide. Also provided are substantially gas-impermeable membranes, such as perfluorinated ionomers (e.g., perfluoroethylene-sulfonic-acid/tetrafluoroethylene membranes), having a high ratio of water vapor permeation relative to gas permeation through the membrane. Also provided are methods of operation of such membranes at relatively high operating temperatures for the purification of steam and for operation of such membranes at relatively low temperature and sub-atmospheric pressures for the purification of steam. In a preferred embodiment, the system 400 for purifying steam comprises heater 404 for creating a source of a steam feed, and a purification device 416 for housing a substantially gas-impermeable membrane 424. In the operation of system 400, water, such as deionized water, is added to vessel 402 to provide a source of the steam feed.
    • 提供蒸汽净化方法,蒸汽净化系统,测量和/或控制蒸汽流量的方法以及净化蒸汽的用途。 还提供了基本上不透气的膜,例如全氟化离聚物(例如,全氟乙烯 - 磺酸/四氟乙烯膜),其具有相对于通过膜的气体渗透的高水蒸气渗透比。 还提供了在相对高的操作温度下操作这种膜的方法,用于纯化蒸汽和在相对较低的温度和低于大气压的压力下操作这些膜以净化蒸汽。 在优选实施例中,用于净化蒸汽的系统400包括用于产生蒸汽进料源的加热器404和用于容纳基本不透气的膜424的净化装置416.在系统400的操作中,例如去离子水 水添加到容器402中以提供蒸汽进料源。