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1. 发明授权

US08506766B2 Method for recovery of acetic acid from an aqueous solution thereof 有权
标题翻译：从其水溶液中回收乙酸的方法
公开(公告)号：US08506766B2
公开(公告)日：2013-08-13
申请号：US13573416
申请日：2012-09-14
申请人： Kuang-Yeu Wu , Ji-Young Jang , Karl Tze-Tang Chuang
发明人： Kuang-Yeu Wu , Ji-Young Jang , Karl Tze-Tang Chuang
IPC分类号： B01D3/36 , B01D3/34 , B01D3/06 , C07C51/46 , C07C51/48 , C07C51/50 , C07C53/08
CPC分类号： C07C51/46 , B01D3/143 , B01D3/36 , B01D11/0426 , B01D11/0488 , B01D11/0492 , C07C51/48 , C07C53/08
摘要： A method for recovering acetic acid from an aqueous feed stream containing acetic acid and, in particular, a stream generated during terephthalic acid production includes feeding a water-rich feed stream to a liquid-liquid extraction column, which includes a guard bed near the top thereof for conversion of alcohol within the feed stream by reaction with acetic acid to the corresponding ester, and removing residual water from acetic acid in an azeotropic distillation column by feeding water-poor feed streams from the extraction column to the distillation column at a height at which the mixture has a similar water concentration. The liquid-liquid extraction column produces an extract of an extraction solvent and acetic acid which is sent to the azeotropic distillation column to separate residual water and acetic acid.
摘要翻译：从含有乙酸的水性进料流中回收乙酸的方法，特别是在对苯二甲酸生产过程中产生的流中的方法包括将富含水的进料流进料到液 - 液萃取塔，液柱萃取塔包括靠近顶部的保护床其用于通过与乙酸反应转化为进料流中的醇至相应的酯，并且通过将来自萃取塔的不含水的进料流进料到蒸馏塔中，在共沸蒸馏塔中从乙酸中除去残留的水，该混合物具有相似的水浓度。液 - 液萃取柱产生萃取溶剂和乙酸的萃取液，将其送入共沸蒸馏塔分离出残留的水和乙酸。

2. 发明授权

US09193660B2 Process for recovery of a carboxylic acid from a feed stream containing the corresponding ester 有权
标题翻译：从含有相应酯的进料流中回收羧酸的方法
公开(公告)号：US09193660B2
公开(公告)日：2015-11-24
申请号：US13986969
申请日：2013-06-20
申请人： Kuang-Yeu Wu , Pai-Yu Polly Chiang , Ji-Young Jang , Karl Tze-Tang Chuang
发明人： Kuang-Yeu Wu , Pai-Yu Polly Chiang , Ji-Young Jang , Karl Tze-Tang Chuang
IPC分类号： C07C51/42 , B01D3/00 , C07C51/09 , C07C51/44
CPC分类号： C07C51/42 , B01D3/009 , C07C51/09 , C07C51/44 , Y02P20/127 , C07C53/08
摘要： A carboxylic acid e.g. acetic acid, is recovered from an aqueous feed stream containing the corresponding ester, an alcohol and a small amount of water by catalytically dehydrating the alcohol to the corresponding ether and water, and reacting the water with the ester to generate a liquid carboxylic acid rich product stream. The acid is recovered by distillation. In a second embodiment, additional alcohol and/or water are co-fed with the feed or fed directly to a catalytic distillation column, resulting in a liquid bottom product stream of substantially pure acetic acid and a top distillate stream of substantially pure ether.
摘要翻译：羧酸例如乙酸通过将醇催化脱水至相应的醚和水从含有相应的酯，醇和少量水的含水进料流中回收，并使水与酯反应以产生液体富含羧酸的产物流。酸通过蒸馏回收。在第二个实施方案中，额外的醇和/或水与进料共同进料或直接进料到催化蒸馏塔，导致基本上纯的乙酸的液体底部产物流和基本上纯的乙醚的顶部馏出物流。

3. 发明申请

US20140378703A1 Process for recovery of a carboxylic acid from a feed stream containing the corresponding ester 有权
标题翻译：从含有相应酯的进料流中回收羧酸的方法
公开(公告)号：US20140378703A1
公开(公告)日：2014-12-25
申请号：US13986969
申请日：2013-06-20
申请人： Kuang-Yeu WU , Pai-Yu Polly Chiang , Ji-Young Jang , Karl Tze-Tang Chuang
发明人： Kuang-Yeu WU , Pai-Yu Polly Chiang , Ji-Young Jang , Karl Tze-Tang Chuang
IPC分类号： C07C51/42
CPC分类号： C07C51/42 , B01D3/009 , C07C51/09 , C07C51/44 , Y02P20/127 , C07C53/08
摘要： A carboxylic acid e.g. acetic acid, is recovered from an aqueous feed stream containing the corresponding ester, an alcohol and a small amount of water by catalytically dehydrating the alcohol to the corresponding ether and water, and reacting the water with the ester to generate a liquid carboxylic acid rich product stream. The acid is recovered by distillation. In a second embodiment, additional alcohol and/or water are co-fed with the feed or fed directly to a catalytic distillation column, resulting in a liquid bottom product stream of substantially pure acetic acid and a top distillate stream of substantially pure ether.
摘要翻译：羧酸例如乙酸通过将醇催化脱水至相应的醚和水从含有相应的酯，醇和少量水的含水进料流中回收，并使水与酯反应以产生液体富含羧酸的产物流。酸通过蒸馏回收。在第二个实施方案中，额外的醇和/或水与进料共同进料或直接进料到催化蒸馏塔，导致基本上纯的乙酸的液体底部产物流和基本上纯的乙醚的顶部馏出物流。

4. 发明申请

US20130012738A1 Method for recovery of acetic acid from an aqueous solution thereof 有权
标题翻译：从其水溶液中回收乙酸的方法
公开(公告)号：US20130012738A1
公开(公告)日：2013-01-10
申请号：US13573416
申请日：2012-09-14
申请人： Kuang-Yeu Wu , Ji-Young Jang , Karl Tze-Tang Chuang
发明人： Kuang-Yeu Wu , Ji-Young Jang , Karl Tze-Tang Chuang
IPC分类号： C07C51/48
CPC分类号： C07C51/46 , B01D3/143 , B01D3/36 , B01D11/0426 , B01D11/0488 , B01D11/0492 , C07C51/48 , C07C53/08
摘要： A method for recovering acetic acid from an aqueous feed stream containing acetic acid and, in particular, a stream generated during terephthalic acid production includes feeding a water-rich feed stream to a liquid-liquid extraction column, which includes a guard bed near the top thereof for conversion of alcohol within the feed stream by reaction with acetic acid to the corresponding ester; and removing residual water from acetic acid in an azeotropic distillation column by feeding water-poor feed streams from the extraction column to the distillation column at a height at which the mixture has a similar water concentration. The liquid-liquid extraction column produces an extract comprising an extraction solvent and acetic acid which is sent to the azeotropic distillation column to separate residual water and acetic acid.
摘要翻译：从含有乙酸的水性进料流中回收乙酸的方法，特别是在对苯二甲酸生产过程中产生的流中的方法包括将富含水的进料流进料到液 - 液萃取塔，液柱萃取塔包括靠近顶部的保护床其用于通过与乙酸与相应的酯反应在进料流内转化醇; 并通过在混合物具有相似的水浓度的高度将来自萃取塔的贫水进料流送入蒸馏塔，在共沸蒸馏塔中从乙酸中除去残留的水。液 - 液萃取柱产生包含萃取溶剂和乙酸的提取物，其被送入共沸蒸馏塔以分离残留的水和乙酸。

5. 发明授权

US07445200B2 Gas-liquid contactor baffle 有权
标题翻译：气液接触器挡板
公开(公告)号：US07445200B2
公开(公告)日：2008-11-04
申请号：US11318189
申请日：2005-12-23
申请人： Adam T. Lee , Kuang-Yeu Wu , Larry W. Burton , Karl Tze-Tang Chuang
发明人： Adam T. Lee , Kuang-Yeu Wu , Larry W. Burton , Karl Tze-Tang Chuang
IPC分类号： B01F3/04
CPC分类号： B01D3/324 , B01D45/08 , B01J19/32 , B01J19/325 , B01J2219/3221 , B01J2219/32227 , B01J2219/32237 , B01J2219/32258 , B01J2219/32268
摘要： A gas-liquid contactor baffle includes a body having a first portion, a second portion and a middle portion, the middle portion being positioned between the first portion and the second portion. The middle portion is a corrugated sheet having a first face and a second face. The corrugated sheet has alternating ridges and open ended channels extending across each of the first face and the second face between the first portion and the second portion. The first portion has a first collection channel adapted to collect liquids from the open ended channels of the middle portion when flow is along the first face in a first direction. The second portion having a second collection channel adapted to collect liquids from the open ended channels of the middle portion when flow is along the second face in a second direction.
摘要翻译：气液接触器挡板包括具有第一部分，第二部分和中间部分的主体，中间部分位于第一部分和第二部分之间。中间部分是具有第一面和第二面的波纹片。波纹片具有交替的脊和敞开的通道，其延伸穿过第一部分和第二部分之间的第一面和第二面中的每一个。第一部分具有第一收集通道，其适于当沿着第一方向沿着第一面流动时从中部的开口通道收集液体。第二部分具有第二收集通道，适于当沿着第二方向沿第二面沿着中间部分的开口通道收集液体时。

6. 发明授权

US09067846B2 Process for producing styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blends 有权
标题翻译：生产苯乙烯，甲基苯乙烯和乙基苯的C6-C9芳族烃共混物的方法
公开(公告)号：US09067846B2
公开(公告)日：2015-06-30
申请号：US13986804
申请日：2013-06-07
申请人： Karl Tze-Tang Chuang , Tzong-Bin Lin , Cheng-Tsung Hong , Yung-Sheng Ho , Kuang-Yeu Wu
发明人： Karl Tze-Tang Chuang , Tzong-Bin Lin , Cheng-Tsung Hong , Yung-Sheng Ho , Kuang-Yeu Wu
IPC分类号： C07C5/03 , C07C5/05
CPC分类号： C07C5/03 , C07C7/04 , C07C7/14891 , C07C7/163 , C07C41/06 , C07C15/02 , C07C15/067 , C07C43/164
摘要： Various substantially styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blends are produced from a hydrocarbon feed stream containing C5-C9 aromatic hydrocarbons including styrene, methylstyrene and sulphur compounds by first separating the stream into a distillate containing C5-C7 hydrocarbons, and a bottoms fraction containing C8 and C9 hydrocarbons; and converting the styrene and methylstyrene to their corresponding ethers by reacting with a C1-C3 lower alcohol in the presence of a selective acidic etherification catalyst. The effluent may be sent to a gasoline pool for blending or the effluent is separated by distillation into an ether stream and either a C8 or a C8-C9 aromatic hydrocarbon rich stream. The C5-C7 distillate is hydrogenated.
摘要翻译：各种基本上苯乙烯，甲基苯乙烯和乙基苯的C 6 -C 9芳族烃共混物是由包含苯乙烯，甲基苯乙烯和硫化合物的C 5 -C 9芳烃的烃进料流产生的，首先将料流分离成含有C5-C7烃的馏出物和含有C8和C9烃的塔底馏分; 并通过在选择性酸性醚化催化剂存在下与C1-C3低级醇反应，将苯乙烯和甲基苯乙烯转化为相应的醚。流出物可以被送到用于混合的汽油池中，或者通过蒸馏将流出物分离成醚流和C8或C8-C9富含芳烃的料流。 C5-C7馏出物被氢化。

7. 发明申请

US20130116489A1 Separating styrene from C6 - C8 aromatic hydrocarbons 失效
标题翻译：将苯乙烯与C6-C8芳烃分离
公开(公告)号：US20130116489A1
公开(公告)日：2013-05-09
申请号：US13373094
申请日：2011-11-04
申请人： Kuang-Yeu Wu , Adam T. Lee , Karl Tze-Tang Chuang , Hung-Chung Shen , Tzong-Bin Lin
发明人： Kuang-Yeu Wu , Adam T. Lee , Karl Tze-Tang Chuang , Hung-Chung Shen , Tzong-Bin Lin
IPC分类号： C07C7/163
CPC分类号： C07C7/14891 , Y02P20/127 , C07C15/08
摘要： The invention disclosed relates to a process for refining a hydrocarbon feed to make substantially styrene-free C6-C8 aromatic hydrocarbons (BTX). The hydrocarbon feed, for example, unhydrotreated pyrolysis gasoline, is distilled to make a BTX rich stream containing styrene which is fractionated to separate C6 and C7 hydrocarbons from C8 hydrocarbons including styrene. Styrene in the C8 hydrocarbons reacts in the presence of a selective etherification catalyst with a C1-C3 lower alkyl alcohol to form the corresponding styrene ether, which is then separated by distillation into a styrene ether stream and a C8 hydrocarbons rich stream. The C8 hydrocarbons rich stream is then re-mixed with the C6 and C7 hydrocarbons, and sent to hydrogenation reactors to remove sulphur and olefinic hydrocarbons to form substantially styrene-free BTX.
摘要翻译：所公开的本发明涉及一种用于精炼烃进料以制备基本上无苯乙烯的C 6 -C 8芳族烃（BTX）的方法。将烃进料例如未加氢处理的裂解汽油蒸馏以制备含有苯乙烯的BTX富流，其分馏以从C 8烃（包括苯乙烯）分离C6和C7烃。 C8烃中的苯乙烯在选择性醚化催化剂存在下与C1-C3低级烷基醇反应形成相应的苯乙烯醚，然后通过蒸馏将其分离成苯乙烯醚流和富含C8烃的物流。然后将富含C8烃的物流与C6和C7烃重新混合，并送往氢化反应器以除去硫和烯烃，以形成基本上无苯乙烯的BTX。

8. 发明授权

US08766028B2 Separating styrene from C6-C8 aromatic hydrocarbons 失效
标题翻译：将苯乙烯与C6-C8芳烃分离
公开(公告)号：US08766028B2
公开(公告)日：2014-07-01
申请号：US13373094
申请日：2011-11-04
申请人： Kuang-Yeu Wu , Adam T. Lee , Karl Tze-Tang Chuang , Hung-Chung Shen , Tzong-Bin Lin
发明人： Kuang-Yeu Wu , Adam T. Lee , Karl Tze-Tang Chuang , Hung-Chung Shen , Tzong-Bin Lin
IPC分类号： C07C7/00 , C07C7/148 , C07C7/163
CPC分类号： C07C7/14891 , Y02P20/127 , C07C15/08
摘要： The invention disclosed relates to a process for refining a hydrocarbon feed to make substantially styrene-free C6-C8 aromatic hydrocarbons (BTX). The hydrocarbon feed, for example, unhydrotreated pyrolysis gasoline, is distilled to make a BTX rich stream containing styrene which is fractionated to separate C6 and C7 hydrocarbons from C8 hydrocarbons including styrene. Styrene in the C8 hydrocarbons reacts in the presence of a selective etherification catalyst with a C1-C3 lower alkyl alcohol to form the corresponding styrene ether, which is then separated by distillation into a styrene ether stream and a C8 hydrocarbons rich stream. The C8 hydrocarbons rich stream is then re-mixed with the C6 and C7 hydrocarbons, and sent to hydrogenation reactors to remove sulphur and olefinic hydrocarbons to form substantially styrene-free BTX.
摘要翻译：所公开的本发明涉及一种用于精炼烃进料以制备基本上无苯乙烯的C 6 -C 8芳族烃（BTX）的方法。将烃进料例如未加氢处理的裂解汽油蒸馏以制备含有苯乙烯的BTX富流，其分馏以从C 8烃（包括苯乙烯）分离C6和C7烃。 C8烃中的苯乙烯在选择性醚化催化剂存在下与C1-C3低级烷基醇反应形成相应的苯乙烯醚，然后通过蒸馏将其分离成苯乙烯醚流和富含C8烃的物流。然后将富含C8烃的物流与C6和C7烃重新混合，并送往氢化反应器以除去硫和烯烃，以形成基本上无苯乙烯的BTX。

9. 发明授权

US07276152B2 Oxidative desulfurization and denitrogenation of petroleum oils 失效
标题翻译：石油的氧化脱硫脱氮
公开(公告)号：US07276152B2
公开(公告)日：2007-10-02
申请号：US10996402
申请日：2004-11-23
申请人： Tzong-Bin Lin , Hsun-Yi Huang , Jyh-Haur Hwang , Hung-Chung Shen , Karl Tze-Tang Chuang
发明人： Tzong-Bin Lin , Hsun-Yi Huang , Jyh-Haur Hwang , Hung-Chung Shen , Karl Tze-Tang Chuang
IPC分类号： C10G17/02 , C10G17/10
CPC分类号： C10G27/12
摘要： A robust, non-aqueous, and oil-soluble organic peroxide oxidant is employed for oxidative desulfurization and denitrogenation of hydrocarbon feedstocks including petroleum fuels. Even at low concentrations, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks without catalyst. Consequently, the oxidation reactions that employ the non-aqueous organic peroxide oxidant take place at substantially lower temperatures and shorter residence times than reactions in other oxidative desulfurization and denitrogenation processes. As a result, a higher percentage of the valuable non-sulfur and non-nitrogen containing components in the hydrocarbon feedstock are more likely preserved with the inventive process. Desulfurization and denitrogenation occur in a single phase non-aqueous environment so that no phase transfer of the oxidant is required.
摘要翻译：采用坚固的非水和油溶性有机过氧化物氧化剂进行烃类原料（包括石油燃料）的氧化脱硫脱氮。即使在低浓度下，非水有机过氧化物氧化剂在氧化烃原料中的硫和氮化合物也没有催化剂时是非常活跃和快速的。因此，使用非水有机过氧化物氧化剂的氧化反应在与其它氧化脱硫和脱氮工艺中的反应相比基本上更低的温度和更短的停留时间下进行。结果是，通过本发明的方法更有可能保留烃原料中较高百分比的有价值的非硫和非含氮组分。在单相非水环境中发生脱硫和脱氮，因此不需要氧化剂的相转移。

10. 发明授权

US6045762A Apparatus for catalytic distillation 失效
标题翻译：催化蒸馏装置
公开(公告)号：US6045762A
公开(公告)日：2000-04-04
申请号：US787355
申请日：1997-01-22
申请人： Karl Tze-Tang Chuang , Zhanping Xu
发明人： Karl Tze-Tang Chuang , Zhanping Xu
IPC分类号： B01D3/16 , B01D3/00 , B01D3/20 , B01J8/04 , B01D47/16 , B01J10/00
CPC分类号： B01J8/0492 , B01D3/008 , B01D3/009 , B01D3/20 , B01J8/0484
摘要： An apparatus for catalytic distillation consists of alternatively a catalyst unit and an active liquid distributor tray. The catalyst unit is formed by series of troughs containing catalysts with spaces between adjacent troughs for vapor flow. The active liquid distributor tray is preferably a V-shaped tray formed with collectors that function as both a liquid distributor to deliver liquid at the appropriate locations to the underneath catalyst unit and a mass transfer device. Liquid flows down to the catalyst toughs from bottom of the sump of each collector and vapor flows up through the upper diverging walls of the collector. Packing materials may be placed on the tray or in the spaces between the troughs or both to enhance mass transfer. The catalyst troughs preferably are partitioned to cause the liquid to flow through the catalyst and to overflow the upper rim of the troughs to escape therefrom whereby the catalyst is maintained submerged.
摘要翻译：用于催化蒸馏的装置可选地包括催化剂单元和活性液体分配器托盘。催化剂单元由含有催化剂的一系列槽形成，在相邻的槽之间具有用于蒸汽流动的空间。活性液体分配器托盘优选地是形成有收集器的V形托盘，该收集器用作液体分配器以在适当位置处将液体输送到下面的催化剂单元和传质装置。液体向下流到催化剂，从每个收集器的贮槽的底部流出，蒸汽向上流过收集器的上部发散壁。包装材料可以放置在托盘上或槽之间或两者之间的空间中以增强传质。催化剂槽优选被分隔以使液体流过催化剂并溢出槽的上边缘以从其中逸出，从而使催化剂保持浸没。

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