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15 条记录 (耗时 0.016 秒)

    METHODS FOR IDENTIFYING HIGH FOULING HYDROCARBON AND FOR MITIGATING FOULING OF PROCESS EQUIPMENT
    2.
    发明申请
    METHODS FOR IDENTIFYING HIGH FOULING HYDROCARBON AND FOR MITIGATING FOULING OF PROCESS EQUIPMENT 有权
    识别高熔点碳水化合物和减少加工设备的方法

    公开(公告)号：US20120122230A1

    公开(公告)日：2012-05-17

    申请号：US13299178

    申请日：2011-11-17

    申请人： Teh C. HO ,  Glen B. BRONS ,  Limin SONG ,  Tahmid I. MIZAN

    发明人： Teh C. HO ,  Glen B. BRONS ,  Limin SONG ,  Tahmid I. MIZAN

    IPC分类号： G01N25/20

    CPC分类号： G01N17/008 ,  C10G75/00 ,  C10G2300/1033 ,  C10G2300/4075 ,  G01N25/18 ,  G01N33/2823

    摘要： Methods for determining the fouling propensity of a hydrocarbon stream and for reducing fouling are provided. In one method, the fouling propensity of a hydrocarbon stream is determined by obtaining a parameter value indicative of the fouling propensity at no less than two different temperatures, and an activation energy of fouling by the hydrocarbon stream is derived therefrom. In another method, the thus obtained parameter value at no less than two different temperatures and the activation energy are used to select proper heating fluids and operating temperature and to determine whether to add an antifoulant to the hydrocarbon stream to reduce fouling at a given temperature.

    摘要翻译： 提供了确定烃流的污染倾向和减少结垢的方法。 在一种方法中，通过在不少于两个不同的温度下获得指示结垢倾向的参数值来确定烃流的结垢倾向，并且由此导出烃流的结垢的活化能。 在另一种方法中，由此获得的不少于两个不同温度的参数值和活化能用于选择适当的加热流体和操作温度，并确定是否在烃流中加入防污剂以减少给定温度下的结垢。

    Mitigation of top of catalyst bed fouling
    4.
    发明申请
    Mitigation of top of catalyst bed fouling 审中-公开
    催化剂床顶部污垢减轻

    公开(公告)号：US20100170830A1

    公开(公告)日：2010-07-08

    申请号：US12661353

    申请日：2010-03-16

    申请人： Tahmid I. Mizan ,  Ramesh Gupta

    发明人： Tahmid I. Mizan ,  Ramesh Gupta

    IPC分类号： C10G75/04

    CPC分类号： B01J19/002 ,  B01J8/0085 ,  B01J8/025 ,  B01J8/0453 ,  B01J2208/00707

    摘要： This invention relates to reactors with mitigation of fouling-related pressure buildup, the reactors having a reactor bed containing at least one catalyst layer through which reactants flow. The mitigation of fouling which occurs at the top of the reactor bed is accomplished by using at least one blowback ring located near the top of the reactor bed.

    摘要翻译： 本发明涉及具有减轻结垢相关压力累积的反应器，该反应器具有反应器床，该反应器床含有至少一个催化剂层，反应物通过该催化剂层流动。 通过使用位于反应器床顶部附近的至少一个回吹环来实现在反应器床的顶部发生的减轻污染。

    Methods for identifying high fouling hydrocarbon and for mitigating fouling of process equipment
    6.
    发明授权
    Methods for identifying high fouling hydrocarbon and for mitigating fouling of process equipment 有权
    识别高结垢碳氢化合物和减轻工艺设备结垢的方法

    公开(公告)号：US08609429B2

    公开(公告)日：2013-12-17

    申请号：US13299178

    申请日：2011-11-17

    申请人： Teh C. Ho ,  Glen B. Brons ,  Limin Song ,  Tahmid I. Mizan

    发明人： Teh C. Ho ,  Glen B. Brons ,  Limin Song ,  Tahmid I. Mizan

    IPC分类号： G01N25/20

    CPC分类号： G01N17/008 ,  C10G75/00 ,  C10G2300/1033 ,  C10G2300/4075 ,  G01N25/18 ,  G01N33/2823

    摘要： Methods for determining the fouling propensity of a hydrocarbon stream and for reducing fouling are provided. In one method, the fouling propensity of a hydrocarbon stream is determined by obtaining a parameter value indicative of the fouling propensity at no less than two different temperatures, and an activation energy of fouling by the hydrocarbon stream is derived therefrom. In another method, the thus obtained parameter value at no less than two different temperatures and the activation energy are used to select proper heating fluids and operating temperature and to determine whether to add an antifoulant to the hydrocarbon stream to reduce fouling at a given temperature.

    摘要翻译： 提供了确定烃流的污染倾向和减少结垢的方法。 在一种方法中，通过在不少于两个不同的温度下获得指示结垢倾向的参数值来确定烃流的结垢倾向，并且由此导出烃流的结垢的活化能。 在另一种方法中，由此获得的不少于两个不同温度的参数值和活化能用于选择适当的加热流体和操作温度，并确定是否在烃流中加入防污剂以减少给定温度下的结垢。

    Methods of utilizing waste heat for creating a pressurized working fluid
    8.
    发明授权
    Methods of utilizing waste heat for creating a pressurized working fluid 有权
    利用废热产生加压工作流体的方法

    公开(公告)号：US08555642B2

    公开(公告)日：2013-10-15

    申请号：US13033673

    申请日：2011-02-24

    申请人： Bhupender S. Minhas ,  Sufang Zhao ,  Mohsen S. Yeganeh ,  Tahmid I. Mizan

    发明人： Bhupender S. Minhas ,  Sufang Zhao ,  Mohsen S. Yeganeh ,  Tahmid I. Mizan

    IPC分类号： F01K13/00 ,  F25B41/00

    CPC分类号： F01K13/00 ,  F01K25/10 ,  F01K25/103 ,  F25B17/00 ,  F25B27/02 ,  F25B29/006 ,  F25B2400/14 ,  Y02A30/274 ,  Y02A30/278 ,  Y02B30/64

    摘要： A method of utilizing waste heat to create a pressurized working fluid is disclosed. The method includes providing a vessel containing a sorbent system, introducing a feed of waste heat to a heat exchanger external to the vessel to heat a feed of working fluid, introducing the heated working fluid from the heat exchanger to the vessel to obtain pressurized working fluid, and directing the pressurized working fluid from the vessel to a work component. The method is particularly suited to make use of waste heat an industrial process, (e.g., a chemical processing or petrochemical refining operation) in which low grade heat source(s) are used to drive the sorption system.

    摘要翻译： 公开了一种利用废热产生加压工作流体的方法。 该方法包括提供包含吸附剂系统的容器，将废热源引入容器外部的热交换器以加热工作流体的进料，将加热的工作流体从热交换器引入容器以获得加压工作流体 并且将加压的工作流体从容器引导到工作部件。 该方法特别适用于使用低等级热源驱动吸附系统的工业过程（例如，化学处理或石油化学精炼操作）来利用废热。