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61 条记录 (耗时 0.022 秒)

    Low-energy extractive distillation process for dehydration of aqueous ethanol
    4.
    发明授权
    Low-energy extractive distillation process for dehydration of aqueous ethanol 有权
    用于乙醇水溶液脱水的低能萃取蒸馏方法

    公开(公告)号：US08002953B2

    公开(公告)日：2011-08-23

    申请号：US11827896

    申请日：2007-07-13

    申请人： Fu-Ming Lee ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Po-Sung Cheng ,  Tai-Ping Chang

    发明人： Fu-Ming Lee ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Po-Sung Cheng ,  Tai-Ping Chang

    IPC分类号： B01D3/40 ,  B01D3/42 ,  C07C29/84 ,  C07C29/94 ,  C12G3/12

    CPC分类号： C07C29/84 ,  B01D3/002 ,  B01D3/143 ,  B01D3/40 ,  Y02P20/125 ,  Y02P20/57 ,  Y10S203/14 ,  Y10S203/20 ,  C07C31/08

    摘要： An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

    摘要翻译： 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔（EDC）。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂，即使在没有液体回流条件下，没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收，可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中，保留在来自EDC的水流中的乙醇在后蒸馏塔中回收，或将水流循环至前端预蒸馏塔，其中乙醇容易回收，因为VLE曲线 对于乙醇/水非常有利于蒸馏。

    Aromatics separation process and method of retrofitting existing equipment for same
    6.
    发明授权
    Aromatics separation process and method of retrofitting existing equipment for same 有权
    芳烃分离过程及其改造方法相同

    公开(公告)号：US06616831B1

    公开(公告)日：2003-09-09

    申请号：US09562577

    申请日：2000-05-01

    申请人： Joseph C. Gentry ,  Fu-Ming Lee

    发明人： Joseph C. Gentry ,  Fu-Ming Lee

    IPC分类号： C10G708

    CPC分类号： C10G21/00 ,  C10G53/00 ,  C10G53/06 ,  C10G53/16

    摘要： An improved process for the recovery of aromatic compounds from a mixture containing aromatic and non-aromatic compounds and method for retrofitting existing equipment for the same is provided. The improved process comprises the steps of recovering aromatic compounds via parallel operation of a hybrid extractive distillation/liquid-liquid extractor operation and variations thereof. Methods of quickly and economically retrofitting existing recovery process equipment for use with the improved aromatics recovery process are also disclosed.

    摘要翻译： 提供了一种用于从含有芳族和非芳香族化合物的混合物中回收芳族化合物的改进方法以及用于改造现有设备的方法。 改进的方法包括通过混合萃取蒸馏/液 - 液萃取器操作及其变化的并行操作来回收芳族化合物的步骤。 还公开了快速和经济地改造用于改进的芳烃回收方法的现有回收工艺设备的方法。

    Process including extractive distillation and/or dehydrogenation to produce styrene from petroleum feedstock including ethyl-benzene/xylene mixtures
    7.
    发明授权
    Process including extractive distillation and/or dehydrogenation to produce styrene from petroleum feedstock including ethyl-benzene/xylene mixtures 失效
    包括萃取蒸馏和/或脱氢以从石油原料生产苯乙烯的方法，包括乙苯 - 二甲苯混合物

    公开(公告)号：US5877385A

    公开(公告)日：1999-03-02

    申请号：US719692

    申请日：1996-09-26

    申请人： Fu-Ming Lee ,  Stephen G. Norwood ,  Joseph C. Gentry

    发明人： Fu-Ming Lee ,  Stephen G. Norwood ,  Joseph C. Gentry

    IPC分类号： C07C5/367 ,  B01D3/32 ,  C07C7/00 ,  C07C7/08 ,  C07C7/10 ,  C07C15/40 ,  C07C15/46 ,  C10G7/08

    CPC分类号： C07C15/46 ,  B01D3/322 ,  B01D3/36 ,  B01D3/40 ,  C07C5/327 ,  C07C7/005 ,  C07C7/08 ,  C07C7/167 ,  C10G53/04 ,  C10G7/08

    摘要： Disclosed is a process for recovering styrene from a feedstock containing at least styrene, ethylbenzene, and one or more aromatic or non-aromatic hydrocarbon compounds which includes separating said feedstock into a first stream relatively more concentrated in styrene than said feedstock and a second stream relatively more concentrated in ethylbenzene than said feedstock, recovering styrene from said first stream to produce a styrene product stream, dehydrogenating the ethylbenzene of said second stream to produce additional styrene, and recovering said additional styrene. The feedstock may be separated into said first and second streams by a process selected from the class consisting of extractive distillation, azeotropic distillation, distillation, liquid-liquid extraction, chemical complex formation, membrane separation, and combinations thereof, and the additional styrene may be recovered by recycling it into said feedstock.

    摘要翻译： 公开了一种从至少含有苯乙烯，乙苯和一种或多种芳族或非芳族烃化合物的原料中回收苯乙烯的方法，包括将所述原料分离成比所述原料相对更浓缩在苯乙烯中的第一流，相对 比所述原料更浓缩在乙苯中，从所述第一流回收苯乙烯以产生苯乙烯产物流，使所述第二物流的乙苯脱氢以产生另外的苯乙烯，并回收所述另外的苯乙烯。 原料可以通过选自萃取蒸馏，共沸蒸馏，蒸馏，液 - 液萃取，化学络合物形成，膜分离及其组合的方法分离成所述第一和第二料流，另外的苯乙烯可以是 通过将其回收到所述原料中而回收。

    Extractive distillation of mixtures containing aromatic and olefinic hydrocarbons
    8.
    发明授权
    Extractive distillation of mixtures containing aromatic and olefinic hydrocarbons 失效
    含芳烃和烯烃的混合物的萃取蒸馏

    公开(公告)号：US5145562A

    公开(公告)日：1992-09-08

    申请号：US724049

    申请日：1991-07-01

    申请人： Ronald E. Brown ,  Fu-Ming Lee

    发明人： Ronald E. Brown ,  Fu-Ming Lee

    IPC分类号： B01D3/40 ,  C07C7/08

    CPC分类号： C07C7/08 ,  B01D3/40

    摘要： Aromatic hydrocarbons containing 6-10 carbon atoms per molecule are separated from close-boiling olefinic hydrocarbons by extractive distillation employing as solvent either N-methyl-2-thiopyrrolidone alone, or a mixture of N-(.beta.-mercaptoethyl)-2-pyrrolidone and N-methyl-2-thiopyrrolidone, or a mixture of N-(.beta.-mercaptoethyl)-2-pyrrolidone and N-methyl-2-pyrrolidone.

    摘要翻译： 每分子含有6-10个碳原子的芳族烃通过萃取蒸馏从接近沸点的烯烃中分离，使用单独的N-甲基-2-硫代吡咯烷酮或N-（β-巯基乙基）-2-吡咯烷酮和 N-甲基-2-硫代吡咯烷酮或N-（β-巯基乙基）-2-吡咯烷酮和N-甲基-2-吡咯烷酮的混合物。

    Producing Cementitious Materials with Improved Hydrophobicity and Strength Using Reclaimed Waste Substances
    9.
    发明申请
    Producing Cementitious Materials with Improved Hydrophobicity and Strength Using Reclaimed Waste Substances 有权

    公开(公告)号：US20210002173A1

    公开(公告)日：2021-01-07

    申请号：US16708524

    申请日：2019-12-10

    申请人： Maw-Tien Lee ,  Zih-Yao Shen ,  Chi-Yao Chen ,  Fu-Ming Lee ,  John Lee

    发明人： Maw-Tien Lee ,  Zih-Yao Shen ,  Chi-Yao Chen ,  Fu-Ming Lee ,  John Lee

    IPC分类号： C04B14/02 ,  C04B18/04 ,  C04B18/14 ,  C04B18/22

    摘要： A hydrophobic admixture, for cementitious materials such as cement paste, mortar, and concrete, includes solid polymer particles with a coating of hydrophobic agent and surfactant. The solid polymer particles adhere to exterior surfaces of hydrated cement particles in the cement matrix. The solid polymer particles deliver the hydrophobic agent into the cement matrix which is hydrophilic. The hydrophobic agents are distributed uniformly throughout the cement matrix. The solid polymer particles can be crumb rubber particles derived from waste rubber tires, recycled plastics and similar solid materials. The hydrophobic liquid agent is derived from waste lubricant oil, spent motor oil, base oil, esters of fatty acids, vegetable oil and the like. Fine particles such as activated carbon, silica fume and spent catalyst can be employed to fill the large pores or cracks that develop in the cementitious matrix. The cured cementitious materials exhibit high contact angles and high compressive strengths.