公开(公告)号：US5154802A

公开(公告)日：1992-10-13

申请号：US731584

申请日：1991-07-17

Applicant: Fu-Ming Lee ,  Ronald E. Brown

Inventor： Fu-Ming Lee ,  Ronald E. Brown

IPC: B01D3/40 ,  C07C7/08

CPC classification number: B01D3/40 ,  C07C7/08

Abstract: The separation of alkadienes from close-boiling alkenes by extractive distillation employs as solvent either N-(.beta.-mercaptoethyl)-2-pyrrolidone alone, or a mixture of N-(.beta.-mercaptoethyl)-2-pyrrolidone and either N-methyl-2-pyrrolidone or cyclohexanol, or a mixture of cyclohexanol and tetraethylene glycol. The separation of cycloalkadines from close-boiling alkadienes by extractive distillation employs N-(.beta.-mercaptoethyl)-2-pyrrolidone as solvent.

Abstract translation: 通过萃取蒸馏将烯二烯与近沸点烯烃的分离采用单独的N-（β-巯基乙基）-2-吡咯烷酮或N-（β-巯基乙基）-2-吡咯烷酮和N-甲基-2-吡咯烷酮的混合物作为溶剂， 2-吡咯烷酮或环己醇，或环己醇与四甘醇的混合物。 通过萃取蒸馏分离环烷烃与近沸点二烯烃采用N-（β-巯基乙基）-2-吡咯烷酮作为溶剂。

公开(公告)号：US5085741A

公开(公告)日：1992-02-04

申请号：US644782

申请日：1991-01-23

Applicant: Ronald E. Brown ,  Anthony L. Rouse ,  Fu-Ming Lee

Inventor： Ronald E. Brown ,  Anthony L. Rouse ,  Fu-Ming Lee

IPC: B01D3/40 ,  C07C7/08

CPC classification number: C07C7/08 ,  B01D3/40

Abstract: An extractive distillation process for separating at least one C.sub.2 -C.sub.4 alkene (preferably propylene) from at least one close-boiling alkane (preferably propane) employs propylene carbonate as solvent, optionally in admixture with a minor amount of water.

Abstract translation: 用于从至少一个接近沸点烷烃（优选丙烷）分离至少一种C 2 -C 4烯烃（优选丙烯）的萃取蒸馏方法使用碳酸亚丙酯作为溶剂，任选地与少量的水混合。

公开(公告)号：US5068011A

公开(公告)日：1991-11-26

申请号：US604719

申请日：1990-10-26

Applicant: Fu-Ming Lee ,  Ronald E. Brown

Inventor： Fu-Ming Lee ,  Ronald E. Brown

IPC: C07C7/08

CPC classification number: C07C7/08

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 employs solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(.beta.-mercaptoethyl)-2-pyrrolidone, optionally in admixture with at least one N-alkyl-2-pyrrolidone, preferably N-methyl-2-pyrrolidone.

Abstract translation: 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）的萃取蒸馏方法使用溶剂至少一种N-巯基烷基-2-吡咯烷酮，优选N-（β-巯基乙基）-2-吡咯烷酮， 任选地与至少一种N-烷基-2-吡咯烷酮，优选N-甲基-2-吡咯烷酮混合。

公开(公告)号：US08864981B2

公开(公告)日：2014-10-21

申请号：US13007581

申请日：2011-01-14

Applicant: Chih-Cheng Chang ,  Jung-Huang Wu ,  Cheng-Tsung Hong ,  Jin-Shang Liou ,  Kuo-Min Wei ,  Hung-Chung Shen ,  Fu-Ming Lee

Inventor： Chih-Cheng Chang ,  Jung-Huang Wu ,  Cheng-Tsung Hong ,  Jin-Shang Liou ,  Kuo-Min Wei ,  Hung-Chung Shen ,  Fu-Ming Lee

IPC: C10G17/04 ,  C10G53/00 ,  C10G21/00 ,  C10G21/27 ,  C10G21/22 ,  C10G21/16 ,  C10G21/20

CPC classification number: C10G21/16 ,  C10G21/003 ,  C10G21/20 ,  C10G21/22 ,  C10G21/27 ,  C10G53/00 ,  C10G2300/1062 ,  C10G2300/1074 ,  C10G2300/30 ,  C10G2300/302 ,  C10G2300/44 ,  C10G2400/30

Abstract: Deasphalted residual oil (DAO) and the aromatics-rich extract that is derived from DAO have low polycyclic aromatics contents, relatively low aniline points, and high flash points. They form blending stocks that improve properties of mixed feedstocks to consistently produce environmentally qualified rubber processing oil (RPO) by extraction under low solvent-to-oil ratios and moderate extraction temperatures. Distilling a petroleum crude oil under atmospheric pressure generates a bottom residual oil which is then subject to vacuum distillation to yield a bottom residual oil. DAO is produced by removing the asphalt from the vacuum bottom residual oil through extraction with light paraffinic solvent. The extract of DAO is a co-product in the production of the bright stock of the lubricating oil through extraction. The feedstock is mixed with the extract from a petroleum fraction boiling in lube oil range. Liquid-liquid counter-current extraction yields a raffinate stream; removal of solvent therefrom produces the RPO.

Abstract translation: 脱气残油（DAO）和来自DAO的富含芳烃的提取物具有低多环芳烃含量，苯胺点相对较低，闪点高。 它们形成混合原料，以改善混合原料的性能，以通过在低溶剂/油比和中等萃取温度下萃取来一致地生产环保合格的橡胶加工油（RPO）。 在大气压下蒸馏石油原油产生底部残余油，然后进行真空蒸馏以产生底部残余油。 DAO是通过用轻链烷烃溶剂萃取从真空底渣中除去沥青而制得的。 DAO的提取物是通过萃取生产润滑油的亮油的共同产品。 原料与在润滑油范围沸腾的石油馏分的提取物混合。 液 - 液逆流萃取产生萃余液流; 除去溶剂产生RPO。

公开(公告)号：US20130228447A1

公开(公告)日：2013-09-05

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

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，而不考虑苯损失到塔顶残液 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：US08246815B2

公开(公告)日：2012-08-21

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: C10G51/02

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：US07879225B2

公开(公告)日：2011-02-01

申请号：US12217676

申请日：2008-07-08

Applicant: Fu-Ming Lee ,  Kuang-Yeu Wu ,  Tsung-Min Chiu ,  Zong-Ying Chen ,  Jyh-Haur Hwang ,  Tzong-Bin Lin ,  Hung-Chung Shen ,  Tung-Hsiung Kuo ,  Yu-Ming Wu

Inventor： Fu-Ming Lee ,  Kuang-Yeu Wu ,  Tsung-Min Chiu ,  Zong-Ying Chen ,  Jyh-Haur Hwang ,  Tzong-Bin Lin ,  Hung-Chung Shen ,  Tung-Hsiung Kuo ,  Yu-Ming Wu

IPC: C10G21/28

CPC classification number: C10G21/06 ,  C10G21/28 ,  C10G2300/4056

Abstract: An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible.

Abstract translation: 通过改进现有的环丁砜溶剂萃取设备或构建新的环丁砜溶剂萃取设备，可以容易地实现能量效率高的芳烃回收方法，从而引入独特的工艺操作，包括液 - 液萃取和萃取蒸馏。 当前工业环丁砜溶剂型液 - 液萃取方法采用液 - 液萃取柱，萃取汽提塔，溶剂回收塔，萃余液洗涤塔和溶剂再生器。 从芳烃和非芳烃的混合物中回收芳烃的改进方法需要将萃取汽提塔转化为改进的萃取蒸馏塔。 改造将液 - 液萃取和萃取蒸馏的独特优势融入到一个过程中，以显着降低能耗并提高生产能力。 改造只需要对原液 - 液萃取设备进行管道更换和小型设备调整，因此是可逆的。

公开(公告)号：US07666297B2

公开(公告)日：2010-02-23

申请号：US11643078

申请日：2006-12-21

Applicant: Fu-Ming Lee ,  Tzong-Bin Lin ,  Hsun-Yi Huang ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Karl Tze-Tang Chuang

Inventor： Fu-Ming Lee ,  Tzong-Bin Lin ,  Hsun-Yi Huang ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Karl Tze-Tang Chuang

IPC: C10G45/00 ,  C10G17/00

CPC classification number: C10G27/12

Abstract: An improved oxidative process that employ a robust, non-aqueous, and oil-soluble organic peroxide oxidant for effective desulfurization and denitrogenation of hydrocarbons including petroleum fuels, hydrotreated vacuum gas oil (VGO), non-hydrotreated VGO, petroleum crude oil, synthetic crude oil from oil sand, and residual oil. Even at low concentrations and without the assistance of catalysts, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks. Furthermore, the process generates a valuable organic acid by-product that is also used internally as the extractive solvent for effective removal of the oxidized sulfur and nitrogen from the hydrocarbons without the need of a final adsorption step. Novel process steps are also disclosed to substantially prevent yield loss in the oxidative process.

Abstract translation: 一种改进的氧化方法，其采用坚固的非水和油溶性有机过氧化物氧化剂，用于有效脱硫和脱氮烃类，包括石油燃料，加氢处理的减压瓦斯油（VGO），非加氢处理的VGO，石油原油，合成原油 油砂油和残油。 即使在低浓度且没有催化剂的帮助下，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方面是非常活跃和快速的。 此外，该方法产生有价值的有机酸副产物，其也在内部用作萃取溶剂，以有效地从烃中除去氧化的硫和氮，而不需要最终的吸附步骤。 还公开了新的方法步骤以基本上防止氧化过程中的产量损失。

公开(公告)号：US20090255853A1

公开(公告)日：2009-10-15

申请号：US12217676

申请日：2008-07-08

Applicant: Fu-Ming Lee ,  Kuang-Yeu Wu ,  Tsung-Min Chiu ,  Zong-Ying Chen ,  Jyh-Haur Hwang ,  Tzong-Bin Lin ,  Hung-Chung Shen ,  Tung-Hsiung Kuo ,  Yu-Ming Wu

Inventor： Fu-Ming Lee ,  Kuang-Yeu Wu ,  Tsung-Min Chiu ,  Zong-Ying Chen ,  Jyh-Haur Hwang ,  Tzong-Bin Lin ,  Hung-Chung Shen ,  Tung-Hsiung Kuo ,  Yu-Ming Wu

IPC: C10G21/28

CPC classification number: C10G21/06 ,  C10G21/28 ,  C10G2300/4056

Abstract: An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible.

Abstract translation: 通过改进现有的环丁砜溶剂萃取设备或构建新的环丁砜溶剂萃取设备，可以容易地实现能量效率高的芳烃回收方法，从而引入独特的工艺操作，包括液 - 液萃取和萃取蒸馏。 当前工业环丁砜溶剂型液 - 液萃取方法采用液 - 液萃取柱，萃取汽提塔，溶剂回收塔，萃余液洗涤塔和溶剂再生器。 从芳烃和非芳烃的混合物中回收芳烃的改进方法需要将萃取汽提塔转化为改进的萃取蒸馏塔。 改造将液 - 液萃取和萃取蒸馏的独特优势融入到一个过程中，以显着降低能耗并提高生产能力。 改造只需要对原液 - 液萃取设备进行管道更换和小型设备调整，因此是可逆的。

公开(公告)号：US20090105514A1

公开(公告)日：2009-04-23

申请号：US12316405

申请日：2008-12-12

Applicant: Fu-Ming Lee ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Kuang-Yeu Wu ,  Tsung-Min Chiu ,  Zong-Ying Chen ,  Tung-Hsiung Kuo ,  Yu-Ming Wu

Inventor： Fu-Ming Lee ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Kuang-Yeu Wu ,  Tsung-Min Chiu ,  Zong-Ying Chen ,  Tung-Hsiung Kuo ,  Yu-Ming Wu

IPC: C07C7/00

CPC classification number: B01D3/40 ,  C10G7/08 ,  C10G2400/30

Abstract: Extractive distillation processes whereby water-soluble extractive distillation (ED) solvents are regenerated and recovered employ improved operations of the extractive distillation column (EDC) so that polar hydrocarbons are recovered and purified from mixtures containing polar and less polar hydrocarbons and measurable amounts of hydrocarbons that are heavier than intended feedstock and/or polymers that are generated in the ED process. The improved process can effectively remove and recover the heavy hydrocarbons and/or remove polymer contaminants from the solvent in a closed solvent circulating loop through mild operating conditions with no additional process energy being expended. With the improved process, the overhead reflux of the EDC may be eliminated to further reduce energy consumption and to enhance the loading and performance within the upper portion of the EDC, especially when two liquid phases exists therein.

Abstract translation: 萃取蒸馏方法，其中水溶性萃取蒸馏（ED）溶剂被再生和回收利用萃取蒸馏塔（EDC）的改进操作，使极性烃从含有极性和极性较小的烃的混合物中回收和纯化， 比在ED过程中产生的预期原料和/或聚合物重。 改进的方法可以在封闭的溶剂循环回路中通过温和的操作条件有效地除去和回收重质烃和/或从溶剂中除去聚合物污染物，而不需要额外的工艺能量消耗。 通过改进的方法，可以消除EDC的顶部回流以进一步降低能量消耗并增强EDC上部的负载和性能，特别是当存在两个液相时。