Multiple fixed-fluidized beds for contaminant removal
    1.
    发明授权
    Multiple fixed-fluidized beds for contaminant removal 有权
    用于污染物去除的多个固定流化床

    公开(公告)号:US08500851B2

    公开(公告)日:2013-08-06

    申请号:US12551190

    申请日:2009-08-31

    IPC分类号: B01D53/02

    摘要: The present disclosure relates generally to contaminant removal from gas streams. In certain embodiments, the present disclosure relates to a process for removing one or more contaminants from a gas stream via contact with a regenerable sorbent at high temperature and pressure, utilizing a unique arrangement of reactors operating in parallel.

    摘要翻译: 本公开一般涉及从气流中除去污染物。 在某些实施方案中,本公开内容涉及通过使用并行操作的反应器的独特布置,在高温和高压下通过与可再生吸附剂接触从气流中除去一种或多种污染物的方法。

    Antifoulant control process
    5.
    发明授权
    Antifoulant control process 失效
    防污染控制过程

    公开(公告)号:US06113774A

    公开(公告)日:2000-09-05

    申请号:US83720

    申请日:1998-05-22

    IPC分类号: C10G75/04 C10G9/16

    CPC分类号: C10G75/04

    摘要: A process is provided by the invention which comprises: (a) providing a tubular reactor having an inlet and an outlet, a furnace for heating the reactor, and a cooler having an inlet in communication with the reactor outlet and also having an outlet; (b) introducing a substantially constant flow of feed gas comprising steam to the reactor inlet while the reactor is heated by the furnace to produce a predetermined and substantially constant reactor outlet temperature; and (c) controlling, during at least a portion of (b), the concentration of an antifoulant in the feed gas based on cooler outlet temperature.

    摘要翻译: 本发明提供了一种方法,其包括:(a)提供具有入口和出口的管式反应器,用于加热反应器的炉子和具有与反应器出口连通并具有出口的入口的冷却器; (b)当反应器被炉加热以产生预定且基本上恒定的反应器出口温度时,将包含蒸汽的基本恒定的进料气流引入反应器入口; 和(c)在(b)的至少一部分期间基于较冷的出口温度来控制进料气体中防污剂的浓度。

    Injection of antifoulants into thermal cracking process streams
    6.
    发明授权
    Injection of antifoulants into thermal cracking process streams 失效
    将防污剂注入热裂解工艺流中

    公开(公告)号:US5435904A

    公开(公告)日:1995-07-25

    申请号:US300672

    申请日:1994-09-01

    IPC分类号: C10G9/16

    CPC分类号: C10G9/16

    摘要: A method of injecting a liquid tin-containing antifoulant into a saturated hydrocarbon feed stream for a thermal cracking reactor comprises providing a first open-ended tube, a second open-ended tube which concentrically surrounds the first tube, and a third tube which concentrically surrounds the first and second tubes; passing a liquid antifoulant stream through the first tube, a dispersing gas stream through the second tube, and a hydrocarbon gas stream (preferably containing ethane and steam) through the third tube; injecting the liquid antifoulant through the open end of the first tube and the dispersing gas through the open end of the second tube into the hydrocarbon gas stream; and passing the mixture of dispersed antifoulant, dispersing gas and hydrocarbon gas into a thermal cracking reactor.

    摘要翻译: 将含液体锡的防污剂注入到用于热裂解反应器的饱和烃进料流中的方法包括提供第一开口管,同心地围绕第一管的第二开口管,以及同心围绕的第三管 第一和第二管; 使液体防污剂流通过第一管,通过第二管的分散气流和通过第三管的烃气流(优选含有乙烷和蒸汽); 将液体防污剂通过第一管的开口端和分散气体通过第二管的开口端注入烃气流中; 并将分散的防污剂,分散气体和烃气体的混合物通入热裂解反应器中。

    Method of micromachining an integrated sensor on the surface of a
silicon wafer
    7.
    发明授权
    Method of micromachining an integrated sensor on the surface of a silicon wafer 失效
    在硅晶片的表面上微加工集成传感器的方法

    公开(公告)号:US5427975A

    公开(公告)日:1995-06-27

    申请号:US59222

    申请日:1993-05-10

    摘要: A method for micromachining the surface of a silicon substrate which encompasses a minimal number of processing steps. The method involves a preferential etching process in which a chlorine plasma etch is capable of laterally etching an N+ buried layer beneath the surface of the bulk substrate. Such a method is particularly suitable for forming sensing devices which include a small micromachined element, such as a bridge, cantilevered beam, membrane, suspended mass or capacitive element, which is supported over a cavity formed in a bulk silicon substrate. The method also permits the formation of such sensing devices on the same substrate as their controlling integrated circuits. This invention also provides novel methods by which such structures can be improved, such as through optimizing the dimensional characteristics of the micromachined element or by encapsulating the micromachined element.

    摘要翻译: 一种微加工硅衬底表面的方法,其包含最少数量的处理步骤。 该方法包括优先蚀刻工艺,其中氯等离子体蚀刻能够横向蚀刻在本体衬底的表面下面的N +掩埋层。 这种方法特别适用于形成感测装置,其包括小型微加工元件,例如桥,悬臂梁,膜,悬挂质量或电容元件,其被支撑在形成于体硅衬底中的空腔上。 该方法还允许在与它们的控制集成电路相同的衬底上形成这样的感测装置。 本发明还提供了通过优化微加工元件的尺寸特性或通过封装微加工元件来改善这种结构的新方法。

    Separation of alkenes from close-boiling alkanes
    8.
    发明授权
    Separation of alkenes from close-boiling alkanes 失效
    从近沸点烷烃中分离烯烃

    公开(公告)号:US5100515A

    公开(公告)日:1992-03-31

    申请号:US604737

    申请日:1990-10-26

    IPC分类号: B01D3/40 C07C7/08

    CPC分类号: B01D3/40 C07C7/08

    摘要: An extractive distillation process for separatin at least one C.sub.4 -C.sub.10 alkene (monoolefin) from at least one close-boiling alkane employs a solvent mixture of (a) at least one saturated alcohol (preferably cyclohexanol) and either (b1) at least one sulfolane (preferably cyclotetramethylene sulfone) or (b2) at least one glycol compound (preferably tetraethylene glycol) or (b1)+(b2).

    摘要翻译: 用于从至少一个接近沸点烷烃分离至少一种C 4 -C 10烯烃(单烯烃)的萃取蒸馏方法采用(a)至少一种饱和醇(优选环己醇)和(b1)至少一种环丁砜的溶剂混合物 (优选环四亚甲基砜)或(b2)至少一种二醇化合物(优选四甘醇)或(b1)+(b2)。

    Extractive distillation of cycloalkane/alkane feeds
    9.
    发明授权
    Extractive distillation of cycloalkane/alkane feeds 失效
    环烷烃/烷烃进料的萃取蒸馏

    公开(公告)号:US5055162A

    公开(公告)日:1991-10-08

    申请号:US526364

    申请日:1990-05-21

    IPC分类号: C07C7/08

    CPC分类号: C07C7/08

    摘要: Cycloalkanes, preferably cyclohexane and/or cyclopentane, are separated from close-boiling alkanes by extractive distillation employing as solvent a mixture of (a) at least one N-hydroxyalkyl-2-pyrrolidone, preferably N-(.beta.-hydroxyethyl)-2-pyrrolidone, and (b) at least one saturated C.sub.5 -C.sub.9 alcohol, preferably cyclohexanol.

    摘要翻译: 使用(a)至少一种N-羟基烷基-2-吡咯烷酮,优选N-(β-羟基乙基)-2-吡咯烷酮的混合物作为溶剂,通过萃取蒸馏将环烷烃,优选环己烷和/或环戊烷与近沸点烷烃分离, 吡咯烷酮,和(b)至少一种饱和C 5 -C 9醇,优选环己醇。

    Extractive distillation of hydrocarbon mixtures
    10.
    发明授权
    Extractive distillation of hydrocarbon mixtures 失效
    烃混合物的萃取蒸馏

    公开(公告)号:US5032232A

    公开(公告)日:1991-07-16

    申请号:US606690

    申请日:1990-10-31

    IPC分类号: B01D3/40 C07C7/08

    CPC分类号: B01D3/40 C07C7/08

    摘要: Extractive distillation processes for separating aromatic hydrocarbon(s) or cycloalkane(s) or alkene(s) from close-boiling alkane(s) are carried out with a solvent including at least one N-alkyl-2-thiopyrrolidone compound, preferably N-methyl-2-thiopyrrolidone. Optionally, the solvent additionally contains a cosolvent, preferably tetraethylene glycol or N-(.beta.-mercaptoethyl)-2-pyrrolidone or unsubstituted sulfolane.

    摘要翻译: 用于从近沸点烷烃分离芳族烃或环烷烃或烯烃的萃取蒸馏方法用包括至少一种N-烷基-2-硫代吡咯烷酮化合物的溶剂进行,优选N- 甲基-2-硫代吡咯烷酮。 任选地,溶剂另外含有共溶剂,优选四甘醇或N-(β-巯基乙基)-2-吡咯烷酮或未取代的环丁砜。