Process for regenerating alkali metal hydroxides by electrochemical means
    84.
    发明申请
    Process for regenerating alkali metal hydroxides by electrochemical means 有权
    通过电化学方法再生碱金属氢氧化物的方法

    公开(公告)号:US20100187124A1

    公开(公告)日:2010-07-29

    申请号:US12460832

    申请日:2009-07-24

    Abstract: This invention relates to the desulfurization of a hydrocarbon feedstock by contacting said feedstock with an aqueous metal hydroxide solution, thus resulting in a desulfurized feedstock and an aqueous metal sulfide stream. In the present invention, the aqueous metal sulfide stream is split into at least three fractions and each fraction is passed to a different electrochemical cell, connected in series to regenerate the metal hydroxide required in the desulfurization process and recover sulfur, metal hydroxide, and hydrogen. In a preferred embodiment, at least a portion of the metal hydroxide that is produced in the electrochemical metal hydroxide regeneration process of the present invention is recycled for use in the process for desulfurizing the sulfur-containing hydrocarbon feedstock.

    Abstract translation: 本发明涉及通过使所述原料与金属氢氧化物水溶液接触使烃原料脱硫,从而得到脱硫原料和金属硫化物水流。 在本发明中,将金属硫化物流分成至少三个部分,并将每个部分通入不同的电化学电池,串联连接以再生脱硫过程中所需的金属氢氧化物并回收硫,金属氢氧化物和氢 。 在优选的实施方案中,在本发明的电化学金属氢氧化物再生方法中生产的至少一部分金属氢氧化物被再循环用于硫含烃原料的脱硫方法。

    Method of removal of carbonyl compounds along with acid gases from cracked gas in ethylene process
    85.
    发明授权
    Method of removal of carbonyl compounds along with acid gases from cracked gas in ethylene process 有权
    在乙烯工艺中从裂解气中除去羰基化合物与酸性气体的方法

    公开(公告)号:US07575669B2

    公开(公告)日:2009-08-18

    申请号:US11021389

    申请日:2004-12-23

    Abstract: A method for mitigating fouling in a wash unit used in a hydrocarbon cracking process wherein the fouling is due to the presence of polymers and deposits thereof formed by condensation of carbonyl compounds contained within a feed stream of the wash unit. In one embodiment, the invention provides a method of mitigating fouling in a wash unit by introducing into the feed stream an effective amount of an additive including: an inorganic salt of dithionite; and an epsilon caprolactam or a 6-amino caproic acid derivable therefrom. The additive scavenges the carbonyl compounds contained within the feed stream and dissolves deposits of the polymers to thereby mitigate fouling in the wash unit.

    Abstract translation: 用于缓解在烃裂解过程中使用的洗涤单元中的结垢的方法,其中结垢是由于聚合物的存在以及由洗涤单元的进料流中包含的羰基化合物的缩合形成的沉积物。 在一个实施方案中,本发明提供了一种通过向进料流中引入有效量的添加剂来减轻洗涤单元中的结垢的方法,所述添加剂包括:连二亚硫酸盐的无机盐; 以及可从其衍生的ε-己内酰胺或6-氨基己酸。 添加剂清除进料流中包含的羰基化合物,并溶解聚合物的沉积物,从而减轻洗涤单元中的结垢。

    METHOD OF SCAVENGING MERCAPTANS FROM HYDROCARBONS
    86.
    发明申请
    METHOD OF SCAVENGING MERCAPTANS FROM HYDROCARBONS 审中-公开
    从碳氢化合物中萃取麦芽糖的方法

    公开(公告)号:US20080230445A1

    公开(公告)日:2008-09-25

    申请号:US12042536

    申请日:2008-03-05

    Abstract: Hydrogen sulfide and mercaptans in hydrocarbons, gas mixtures of hydrocarbons and the like may be scavenged therefrom by being brought into intimate contact with a mercaptan scavenger formulation of quaternary ammonium alkoxide or hydroxide in the presence of a high oxidative state metal such as cobalt, iron, chromium and/or nickel. The high oxidative state metal, being an oxidizer, acts as a catalyst when combined with the quaternary ethoxide or hydroxide for improved mercaptan scavenging performance.

    Abstract translation: 烃类中的硫化氢和硫醇,碳氢化合物的气体混合物等可以通过在高氧化态金属如钴,铁等的存在下与硫醇季铵盐或氢氧化物的硫醇清除剂配方紧密接触而被清除, 铬和/或镍。 作为氧化剂的高氧化态金属与季戊四醇或氢氧化物结合时用作催化剂,以改善硫醇清除性能。

    Method for reducing the level of elemental sulfur and total sulfur in hydrocarbon streams
    88.
    发明申请
    Method for reducing the level of elemental sulfur and total sulfur in hydrocarbon streams 有权
    降低烃流中元素硫和总硫含量的方法

    公开(公告)号:US20060011517A1

    公开(公告)日:2006-01-19

    申请号:US11123516

    申请日:2005-05-06

    Applicant: Joseph Feimer

    Inventor: Joseph Feimer

    Abstract: A method for reducing the level of elemental sulfur from sulfur-containing hydrocarbon streams as well as reducing the level of total sulfur in such streams. Preferred hydrocarbon streams include fuel streams such as naphtha streams that are transported through a pipeline. The sulfur-containing hydrocarbon stream is contacted with a mixture of water, a caustic, a surfactant, at least one metal sulfide, and optionally an aromatic mercaptan. This results in an aqueous phase and a hydrocarbon phase containing reduced levels of both elemental sulfur and total sulfur.

    Abstract translation: 一种降低含硫烃流中元素硫含量的方法以及降低这些物流中总硫的含量。 优选的烃流包括燃料流,例如通过管道输送的石脑油流。 含硫烃物流与水,苛性碱,表面活性剂,至少一种金属硫化物和任选的芳族硫醇的混合物接触。 这导致水相和烃相含有元素硫和总硫的水平降低。

    Method of removal of carbonyl compounds along with acid gases from cracked gas in ethylene process
    89.
    发明申请
    Method of removal of carbonyl compounds along with acid gases from cracked gas in ethylene process 有权
    在乙烯工艺中从裂解气中除去羰基化合物与酸性气体的方法

    公开(公告)号:US20050224394A1

    公开(公告)日:2005-10-13

    申请号:US11021389

    申请日:2004-12-23

    Abstract: A method for mitigating fouling in a wash unit used in a hydrocarbon cracking process wherein the fouling is due to the presence of polymers and deposits thereof formed by condensation of carbonyl compounds contained within a feed stream of the wash unit. In one embodiment, the invention provides a method of mitigating fouling in a wash unit by introducing into the feed stream an effective amount of an additive including: an inorganic salt of dithionite; and an epsilon caprolactam or a 6-amino caproic acid derivable therefrom. The additive scavenges the carbonyl compounds contained within the feed stream and dissolves deposits of the polymers to thereby mitigate fouling in the wash unit.

    Abstract translation: 用于缓解在烃裂解过程中使用的洗涤单元中的结垢的方法,其中结垢是由于聚合物的存在以及由洗涤单元的进料流中包含的羰基化合物的缩合形成的沉积物。 在一个实施方案中,本发明提供了一种通过向进料流中引入有效量的添加剂来减轻洗涤单元中的结垢的方法,所述添加剂包括:连二亚硫酸盐的无机盐; 以及可从其衍生的ε-己内酰胺或6-氨基己酸。 添加剂清除进料流中包含的羰基化合物,并溶解聚合物的沉积物,从而减轻洗涤单元中的结垢。

    Vertical extending liquid/liquid contacting column
    90.
    发明授权
    Vertical extending liquid/liquid contacting column 失效
    垂直延伸液/液接触柱

    公开(公告)号:US06824750B2

    公开(公告)日:2004-11-30

    申请号:US09758899

    申请日:2001-01-11

    Inventor: Jose Luis Bravo

    CPC classification number: B01D11/043 B01D3/20 C10G19/02 C10G21/00

    Abstract: A vertical extending liquid/liquid contacting column is disclosed, which column will, when in use, contain a dispersed and a continuous liquid phase, the column having a first liquid feed inlet in the top, a first liquid outlet in the top, a second liquid feed inlet in the bottom, a second liquid outlet in the bottom and a plurality of internal trays axially spaced from each other in the column, each tray provided with a plurality of perforations for the passage of the dispersed phase and more than one downcomer or upcomer for the transport of the continuous phase, wherein the downcomer or upcomer extends respectively below or above the tray and wherein the walls of the downcomer or upcomer are inclined towards each other in the flow direction of the continuous phase. A method of use within the column is also disclosed.

    Abstract translation: 公开了一种垂直延伸的液/液接触塔,该柱在使用时将含有分散和连续的液相,该塔在顶部具有第一液体进料入口,顶部具有第一液体出口,第二液体出口在第二 底部的进料入口,底部的第二液体出口和在塔中彼此轴向间隔开的多个内部托盘,每个托盘设置有用于分散相通过的多个穿孔和多于一个降液管或 用于输送连续相的升降器,其中降液管或升液管分别延伸到托盘的下方或上方,并且其中降液管或升降管的壁在连续相的流动方向上彼此倾斜。 还公开了该柱内的使用方法。

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