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    Low capital implementation of distributed distillation in ethylene recovery
    6.
    发明授权
    Low capital implementation of distributed distillation in ethylene recovery 有权
    低资本实施乙烯回收分配蒸馏

    公开(公告)号：US07129387B2

    公开(公告)日：2006-10-31

    申请号：US10393029

    申请日：2003-03-20

    申请人： Rian Reyneke ,  Michael J. Foral ,  Guang-Chung Lee

    发明人： Rian Reyneke ,  Michael J. Foral ,  Guang-Chung Lee

    IPC分类号： C07C7/04 ,  B01D3/14

    CPC分类号： B01D3/322 ,  B01D3/14 ,  B01D3/141 ,  C07C7/04 ,  C07C11/04

    摘要： An apparatus for recovering ethylene from a hydrocarbon feed stream, where the apparatus is a single distillation column pressure shell encasing an upper region and a lower region. The upper region houses an ethylene distributor rectifying section and the lower region houses a C2 distributor section and an ethylene distributor stripping section. Vapor passes from the lower region into the upper region, and liquid passes from the upper region to the lower region. The process for recovering the ethylene is also disclosed. The hydrocarbon feed stream is introduced into the C2 distributor section, and after a series of stripping and refluxing steps, distinct hydrocarbon products are recovered from the C2 distributor section, the ethylene distributor stripping section, and the ethylene distributor rectifying section, respectively.

    摘要翻译： 一种用于从烃进料流中回收乙烯的装置，其中装置是包围上部区域和下部区域的单个蒸馏塔压力壳。 上部区域容纳乙烯分配器整流部分，下部区域容纳C2分配器部分和乙烯分配器剥离部分。 蒸气从下部区域进入上部区域，液体从上部区域流到下部区域。 还公开了回收乙烯的方法。 烃进料流被引入到C2分配器部分中，并且在一系列汽提和回流步骤之后，分别从C2分配器段，乙烯分配器汽提段和乙烯分配器整流段回收不同的烃产物。

    Method for modifying electrocatalyst material, electrochemical cells and electrodes containing this modified material, and synthesis methods utilizing the cells
    10.
    发明授权
    Method for modifying electrocatalyst material, electrochemical cells and electrodes containing this modified material, and synthesis methods utilizing the cells 失效
    用于改变电催化剂材料，电化学电池和含有该改性材料的电极的方法，以及利用该电池的合成方法

    公开(公告)号：US4818353A

    公开(公告)日：1989-04-04

    申请号：US70426

    申请日：1987-07-07

    申请人： Stanley H. Langer ,  Michael J. Foral ,  John C. Card

    发明人： Stanley H. Langer ,  Michael J. Foral ,  John C. Card

    IPC分类号： C25B3/02 ,  C25B5/00 ,  C25B11/04 ,  H01M4/90 ,  H01M8/00 ,  C25B3/00

    CPC分类号： C25B5/00 ,  C25B11/0442 ,  C25B3/02 ,  H01M4/90 ,  H01M8/00 ,  Y10S204/04

    摘要： A transition metal electrocatalyst surface (e.g. a porous surface of finely divided Group VIII or Group I-B metal with an attached current collector) is modified by a sulfur treatment, using an oxidized sulfur species of average sulfur oxidation state of about 4 or less, e.g. SO.sub.2 dissolved in aqueous acid. Treatment of the transition metal with SO.sub.2 or the like typically provides up to 100% coverage of the surface electrocatalyst sites with chemisorbed sulfur-containing species and perhaps subsurface effects as well, but washing or other non-electrochemical techniques can remove 5-90% (e.g. 25-70%) of the chemisorbed SO.sub.2 or the like from the surface, leaving substantially only a very strongly bound form of the sulfur-containing species. The strongly bound sulfur-containing species can then be reduced to form a highly beneficial, selectively-improving pattern of sites containing reduced -S (e.g. sulfur or sulfide) on the electrocatalyst surface. Electrochemical synthesis cells can be constructed from a cathode and/or anode made form the S-treated electrocatalystThis invention was made with United States Government support awarded by the National Sciences Foundation (NSF), grant nos. CHE-8115022 and AGR-DTD-07-11-85. The United States Government has certain rights in this invention.

    摘要翻译： 过渡金属电催化剂表面（例如具有附着的集流体的细分第VIII族或第I-B族金属的多孔表面）通过硫处理，使用平均硫氧化态约4或更小的氧化硫物质，例如 SO2溶解在酸性水溶液中。 用SO2等处理过渡金属通常可以使化学吸附的含硫物质表面电催化剂位置达到100％的覆盖率，也可能产生次表面效应，但洗涤或其他非电化学技术可以除去5-90％（ 例如25-70％）的化学吸附的SO2等，基本上只留下非常强的结合形式的含硫物质。 然后可以将强结合的含硫物质还原以形成在电催化剂表面上含有还原的-S（例如硫或硫化物）的高度有利的，选择性改善的位点图案。 电化学合成电池可以由由S处理的电极催化剂制成的阴极和/或阳极构成，并用于高选择性地合成来自各种原料的有用的有机和无机化合物，例如， 通过将O 2还原成H 2 O 2，将NO还原成NH 2 OH，将RCH 2 OH氧化成RCOOCH 2 R（R =低级烷基等），将RR'CHOH氧化成RCOR'（R和R'=低级烷基等）或 喜欢。