公开(公告)号：US20050218038A1

公开(公告)日：2005-10-06

申请号：US10814214

申请日：2004-03-31

Applicant: Vincent Nero ,  Alkis Rappas ,  Fu-Ming Lee

Inventor： Vincent Nero ,  Alkis Rappas ,  Fu-Ming Lee

IPC: C10G17/00 ,  C10G17/06 ,  C10G27/12 ,  C10G53/14

CPC classification number: C10G27/12 ,  C10G17/06 ,  C10G2400/02

Abstract: Embodiments of the invention provide a process for selectively removing polyene compounds from a hydrocarbon stream. The process comprises the steps of contacting the polyene compounds with sulfuric acid at ambient temperature and sufficient time to form two phases. The phases consist of a hydrocarbon phase with substantially no loss in octane number and a spent acid phase. The hydrocarbon phase can then be sent to an optimized desulfurization process.

Abstract translation: 本发明的实施方案提供了从烃流中选择性除去多烯化合物的方法。 该方法包括在环境温度和足够的时间下使多烯化合物与硫酸接触以形成两相的步骤。 这些相由基本上没有辛烷值损失的烃相和废酸相组成。 然后将烃相送入优化的脱硫方法。

公开(公告)号：US06565742B1

公开(公告)日：2003-05-20

申请号：US09000579

申请日：1997-12-30

Applicant: Joseph C. Gentry ,  Fu-Ming Lee

Inventor： Joseph C. Gentry ,  Fu-Ming Lee

IPC: C10G2100

CPC classification number: C10G21/00 ,  C10G53/00 ,  C10G53/06 ,  C10G53/16

Abstract: 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 aromatic recovery process are also disclosed.

Abstract translation: 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族回收方法的现有回收工艺设备的方法。

公开(公告)号：US6013835A

公开(公告)日：2000-01-11

申请号：US760890

申请日：1996-12-06

Applicant: Fu-Ming Lee ,  Wiston Lamshing

Inventor： Fu-Ming Lee ,  Wiston Lamshing

IPC: C07C51/42 ,  C07C51/43 ,  C07C63/26 ,  C07C51/487

CPC classification number: C07C51/43

Abstract: A method and apparatus for purifying crude terephthalic acid from a liquid dispersion thereof also containing impurities selected from unreacted starting materials, solvents, products of side reactions and/or other undesired materials is provided. The method comprises the steps of filtering the dispersion to form a crude terephthalic acid filter cake, dissolving the filter cake in a selective crystallization solvent at an elevated temperature to form a solution, crystallizing purified terephthalic acid from the solution in the crystallization solvent by reducing the pressure and temperature of the solution, and separating the crystallized purified terephthalic acid from the solution. According to the invention, the selective crystallization solvent is non-aqueous, non-corrosive and essentially non-reactive with terephthalic acid. Preferably, the selective crystallization solvent is N-methyl pyrrolidone. The method and apparatus produces purified terephthalic acid having a purity desired for use in forming polyester resin and other products at an economically attractive rate and at operating conditions of reduced severity which require a lower capital investment and simplified processing.

Abstract translation: 提供了一种从其液体分散体中纯化粗对苯二甲酸的方法和装置，其还含有选自未反应的起始原料，溶剂，副反应产物和/或其它不需要的物质的杂质。 该方法包括以下步骤：过滤分散体以形成粗对苯二甲酸滤饼，在高温下将滤饼溶解在选择性结晶溶剂中以形成溶液，从结晶溶剂中的溶液中将纯化的对苯二甲酸结晶， 溶液的压力和温度，并从溶液中分离结晶的纯化对苯二甲酸。 根据本发明，选择性结晶溶剂是非水性的，非腐蚀性的并且与对苯二甲酸基本上不反应。 优选地，选择性结晶溶剂是N-甲基吡咯烷酮。 该方法和设备产生纯化的对苯二甲酸，其具有希望用于形成聚酯树脂和其它产品的纯度的经纯化的对苯二甲酸酯以经济上有吸引力的速率和苛刻的操作条件，其需要较低的资本投资和简化的加工。

公开(公告)号：US5767311A

公开(公告)日：1998-06-16

申请号：US477898

申请日：1995-06-07

Applicant: Fu-Ming Lee ,  Wei-Teh Wade Shang

Inventor： Fu-Ming Lee ,  Wei-Teh Wade Shang

IPC: C07C51/42 ,  C07C51/43 ,  C07C63/26 ,  C07C51/487

CPC classification number: C07C51/43

Abstract: A method and apparatus for purifying crude terephthalic acid from a liquid dispersion thereof also containing impurities selected from unreacted starting materials, solvents, products of side reactions and/or other undesired materials is provided. The method comprises the steps of filtering the dispersion to form a crude terephthalic acid filter cake, dissolving the filter cake in a selective crystallization solvent at an elevated temperature to form a solution, crystallizing purified terephthalic acid from the solution in the crystallization solvent by reducing the temperature of the solution, and separating the crystallized purified terephthalic acid from the solution. According to the invention, the selective crystallization solvent is non-aqueous, non-corrosive and essentially non-reactive with terephthalic acid. Preferably, the selective crystallization solvent is N-methyl pyrrolidone. The method and apparatus produces purified terephthalic acid having a purity desired for use in forming polyester resin and other products at an economically attractive rate and at operating conditions of reduced severity which require a lower capital investment and simplified processing.

Abstract translation: 提供了一种从其液体分散体中纯化粗对苯二甲酸的方法和装置，其还含有选自未反应的起始原料，溶剂，副反应产物和/或其它不需要的物质的杂质。 该方法包括以下步骤：过滤分散体以形成粗对苯二甲酸滤饼，在高温下将滤饼溶解在选择性结晶溶剂中以形成溶液，通过将结晶溶剂中的溶液从纯化的对苯二甲酸中结晶， 溶液的温度，和从溶液中分离出结晶的纯对苯二甲酸。 根据本发明，选择性结晶溶剂是非水性的，非腐蚀性的并且与对苯二甲酸基本上不反应。 优选地，选择性结晶溶剂是N-甲基吡咯烷酮。 该方法和设备产生纯化的对苯二甲酸，其具有希望用于形成聚酯树脂和其它产品的纯度的经纯化的对苯二甲酸酯以经济上有吸引力的速率和苛刻的操作条件，其需要较低的资本投资和简化的加工。

公开(公告)号：US5085740A

公开(公告)日：1992-02-04

申请号：US604720

申请日：1990-10-26

Applicant: Fu-Ming Lee ,  Ronald E. Brown

Inventor： Fu-Ming Lee ,  Ronald E. Brown

IPC: B01D3/40 ,  C07C7/08

CPC classification number: C07C7/08 ,  B01D3/40

Abstract: An extractive distillation process for separating at least one C.sub.4 -C.sub.10 alkene (monoolefin) from at least one close-boiling alkane (paraffin) employs as solvent a mixture of (a) at least one N-alkyl-2-pyrrolidone, preferably N-methyl-2-pyrrolidone and either (b1) at least one sulfolane compound (preferably cyclotetramethylene sulfone) or (b2) at least one glycol compound (preferably tetraethylene glycol) or both (b1) and (b2).

Abstract translation: 用于从至少一个接近沸点烷烃（石蜡）中分离至少一种C 4 -C 10烯烃（单烯烃）的萃取蒸馏方法使用（a）至少一种N-烷基-2-吡咯烷酮，优选N- 甲基-2-吡咯烷酮和（b1）至少一种环丁砜化合物（优选环四亚甲基砜）或（b2）至少一种二醇化合物（优选四甘醇）或二者（b1）和（b2）。

公开(公告)号：US4083931A

公开(公告)日：1978-04-11

申请号：US716555

申请日：1976-08-23

Applicant: Fu-Ming Lee

Inventor： Fu-Ming Lee

IPC: C07C29/88 ,  C07C29/24 ,  C01D15/06 ,  C07C53/08

CPC classification number: C07C29/88

Abstract: A process for treating and recovering components from aldol-condensation polyol waste liquor containing sodium formate, water, polyol, and organic by-products comprising A. vacuum crystallizing and removing sodium formate; B. introducing methanol and sulfuric acid; C. distilling to remove and recover methyl formate; D. increasing the pH to about 6.5 to 7.0; E. cooling to precipitate Glauber's salt, polyol and organics; and F. adding water to dissolve and separate the Glauber's salt and recover substantially pure polyol and organics.

Abstract translation: 一种从含有甲酸钠，水，多元醇和有机副产物的醛醇缩合多元醇废液中处理和回收组分的方法，包括A.真空结晶和除去甲酸钠; B.引入甲醇和硫酸; 蒸馏除去并回收甲酸甲酯; D.将pH值提高至约6.5-7.0; E.冷却以沉淀芒硝，多元醇和有机物; 和F.加水以溶解并分离芒硝的盐并回收基本上纯的多元醇和有机物。

公开(公告)号：US09005405B2

公开(公告)日：2015-04-14

申请号：US13410286

申请日：2012-03-01

Applicant: Kuang-Yeu Wu ,  Tzong-Bin Lin ,  Fu-Ming Lee ,  Tsung-Min Chiu ,  Jeng-Cheng Lee

Inventor： Kuang-Yeu Wu ,  Tzong-Bin Lin ,  Fu-Ming Lee ,  Tsung-Min Chiu ,  Jeng-Cheng Lee

IPC: B01D3/40 ,  C07C7/08 ,  C07C15/04

CPC classification number: B01D3/40 ,  C07C7/08 ,  C07C15/04

Abstract: Recovering high purity benzene from hydrocarbon feedstock containing aromatics and non-aromatics is implemented by simple and low-cost modifications to conventional extractive distillation columns (EDCs). Methyl cyclohexane (MCH) that is generated through non-selective hydrogenation of toluene in hydrodesulfurization (HDS) units is a major contaminant in benzene production. To meet MCH specifications, often times the extractive distillation (ED) process for recovering purified benzene is operated with excessive benzene loss to the overhead raffinate stream, producing a lower quality non-aromatic product. Novel techniques (1) remove operational constrictions of the HDS unit on MCH production, thus lengthening the catalyst life and (2) allow the EDC to drive essentially any amount of MCH away from the bottom benzene product without concerns with benzene loss to the overhead raffinate stream and (3) recover benzene from the overhead raffinate stream to upgrade the quality of non-aromatic product and increase the benzene product recovery.

Abstract translation: 通过对常规萃取蒸馏塔（EDC）的简单且低成本的改进来实现从芳族化合物和非芳族化合物的烃原料中回收高纯度苯。 通过在加氢脱硫（HDS）单位中甲苯的非选择性氢化产生的甲基环己烷（MCH）是苯生产中的主要污染物。 为了满足MCH规范，通常多次用于回收纯化苯的萃取蒸馏（ED）方法对顶部萃余液流具有过量的苯损失，产生较低质量的非芳族产物。 新技术（1）消除了HDS单元在MCH生产中的操作限制，从而延长了催化剂寿命，（2）允许EDC将基本上任意数量的MCH从底部苯产品中驱出，而不考虑苯残留到塔顶残液 流和（3）从塔顶残液流回收苯，提高非芳香族产品的质量，提高苯产品回收率。

公开(公告)号：US08172987B2

公开(公告)日：2012-05-08

申请号：US13184540

申请日：2011-07-17

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

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

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

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

Abstract: 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.

Abstract translation: 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，也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。

公开(公告)号：US20120037542A1

公开(公告)日：2012-02-16

申请号：US12854150

申请日：2010-08-10

Applicant: Kuang-Yeu Wu ,  Tzong-Bin Lin ,  Fu-Ming Lee ,  Tsung-Min Chiu ,  Jyh-Haur Hwang ,  Hung-Chung Shen

Inventor： Kuang-Yeu Wu ,  Tzong-Bin Lin ,  Fu-Ming Lee ,  Tsung-Min Chiu ,  Jyh-Haur Hwang ,  Hung-Chung Shen

IPC: C10G21/28

CPC classification number: C07C7/08 ,  C07D333/48 ,  C10G21/28 ,  C10G2300/1081 ,  C10G2300/1088 ,  C10G2300/1096 ,  C10G2300/44 ,  C10G2300/805 ,  C07C15/04 ,  C07C15/06

Abstract: An improved solvent regeneration system for extractive distillation and liquid-liquid extraction processes capable of effectively removing heavy hydrocarbons and polymeric materials that otherwise develop in a closed solvent loop. The improved process employs a light hydrocarbon displacement agent, which is at least partially soluble in the solvent to squeeze the heavy hydrocarbons and polymeric materials out of the solvent, with virtually no additional energy requirement. It has been demonstrated that the light non-aromatic hydrocarbons in the raffinate stream generated from the extractive distillation or the liquid-liquid extractive process for aromatic hydrocarbons recovery can displace not only the heavy non-aromatic hydrocarbons but also the heavy aromatic hydrocarbons from the extractive solvent, especially when the aromatic hydrocarbons in the solvent are in the C10+ molecular weight range.

Abstract translation: 用于萃取蒸馏和液 - 液萃取方法的改进的溶剂再生系统，其能够有效地除去否则在密闭的溶剂回路中发展的重质烃和聚合材料。 改进的方法采用轻质烃置换剂，其至少部分可溶于溶剂以将重质烃和聚合物材料挤出溶剂，实际上无需额外的能量需求。 已经证明，从萃取蒸馏或用于芳族烃回收的液 - 液萃取过程产生的萃余液流中的轻非芳族烃不仅可以取代重非芳族烃，而且可以取代萃取物中的重芳香烃 溶剂，特别是当溶剂中的芳烃为C10 +分子量范围时。

公开(公告)号：US20110266134A1

公开(公告)日：2011-11-03

申请号：US13184540

申请日：2011-07-17

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

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

IPC: C07C29/84

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

Abstract: 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.

Abstract translation: 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，也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。