公开(公告)号：US20040020758A1

公开(公告)日：2004-02-05

申请号：US10314537

申请日：2002-12-09

申请人： CATALYTIC DISTILLATION TECHNOLOGIES

发明人： Jianhua Wang ,  Nishit Sahay ,  Mitchell E. Loescher ,  Montri Vichailak

IPC分类号： B01D003/00 ,  B01D003/10 ,  C07C007/00 ,  C07C027/26 ,  C07C029/74

CPC分类号： C07C7/06 ,  B01D3/146 ,  C07C29/80 ,  Y10S203/20 ,  C07C11/02 ,  C07C31/12

摘要： A process for the separation of diisobutylene from tertiary butyl alcohol utilizing pressure swing azeotropic distillation to achieve the desired separation. The pressure swing azeotropic distillation takes advantage of the fact that different azeotropes are formed at different pressures. Isobutylene in C4 streams is oligomerized in the presence of tertiary butyl alcohol to produce the diisobutylene. Tertiary butyl alcohol is present in the dimerization because it improves the selectivity to the dimer (diisobutylene) by suppressing further reaction to the trimer or higher. The diisobutylene is separated from the tertiary butyl alcohol utilizing two distillation columns. The first distillation is operated at a higher pressure than the second such that the minimum boiling azeotropes of tertiary butyl alcohol and diisobutylene have different concentrations of tertiary butyl alcohol. Diisobutylene is removed as bottoms from the first distillation column and unreacted C4's are removed as overheads at 60-130 psig . A side draw containing the minimum boiling azeotrope is fed to the second distillation column, operated at 0-45 psig where a second minimum boiling azeotrope is formed having a lower tertiary butyl alcohol concentration. The tertiary butyl alcohol is recovered as bottoms and recycled to the reactor. The second minimum boiling azeotrope is removed as overheads and recycled to the first distillation column.

摘要翻译： 利用逆转共沸蒸馏法从叔丁醇中分离二异丁烯以达到理想分离的方法。 变压共沸蒸馏利用了在不同压力下形成不同的共沸物的事实。 C4流中的异丁烯在叔丁醇的存在下被低聚，产生二异丁烯。 通过抑制进一步反应三聚物或更高的三聚体，二元醇存在叔丁醇，因为它提高了对二聚体（二异丁烯）的选择性。 使用两个蒸馏塔将二异丁烯与叔丁醇分离。 第一蒸馏在比第二蒸馏更高的压力下操作，使得叔丁醇和二异丁烯的最低沸点共沸物具有不同浓度的叔丁醇。 二异丁烯作为塔顶馏出物从第一蒸馏塔中除去，未反应的C4作为塔顶馏出物在60-130psig下除去。 将含有最小沸点共沸物的侧馏分进料到第二蒸馏塔，在0-45psig下操作，其中形成具有较低叔丁醇浓度的第二最小沸腾共沸物。 将叔丁醇作为底部物质回收并再循环至反应器。 将第二最小沸腾共沸物作为塔顶馏出物除去并循环至第一蒸馏塔。

公开(公告)号：US20040000471A1

公开(公告)日：2004-01-01

申请号：US10456655

申请日：2003-06-06

申请人： Huntsman Petrochemical Corporation

发明人： Wei-Yang Su ,  Mark L. Posey ,  Maarten P. ter Weeme

IPC分类号： B01D003/00 ,  C07C209/00

CPC分类号： C07C213/10 ,  C07C209/84 ,  C07C209/90 ,  C07C211/05 ,  C07C211/14 ,  C07C215/08 ,  C07C217/08

摘要： The present invention concerns a process for providing tertiary amine products which are color-stable, and have a greatly reduced tendency to take on color during their storage. According to the invention, an ethyleneamine derivative is added to the distillation pot prior to or during the distillation of the tertiary amine product. Preferably, the ethyleneamine derivative has a higher boiling point than the desired tertiary amine product so as to preclude the ethyleneamine from distilling over with the tertiary amine.

摘要翻译： 本发明涉及提供颜色稳定的叔胺产物的方法，并且在其储存期间具有大大降低的颜色倾向。 根据本发明，在蒸馏叔胺产物之前或期间，将乙烯胺衍生物加入到蒸馏罐中。 优选地，亚乙基胺衍生物的沸点高于所需的叔胺产物，以排除乙胺与叔胺蒸馏。

公开(公告)号：US20030209419A1

公开(公告)日：2003-11-13

申请号：US10459827

申请日：2003-06-10

发明人： Mark Christopher Tonkin ,  Mark Andrew Young ,  Neil David Eckert

IPC分类号： B01D003/00 ,  B01D003/12 ,  B01D003/02 ,  C02F001/04

CPC分类号： B01D61/362 ,  C02F1/14 ,  C02F1/448 ,  C02F2103/08 ,  Y02A20/128 ,  Y02A20/129 ,  Y02A20/131 ,  Y02A20/142 ,  Y02A20/212 ,  Y02W10/37 ,  Y10S159/27 ,  Y10S159/28 ,  Y10S203/11

摘要： A mechanical water still (10) includes an impervious dome-like upper surface (12) and a membrane base (14) that is coupled (26) to the impervious dome-like structure (12) to form, when inflated, a chamber (20). The membrane base (14) supports a water pervaporation process therethrough. A water collection well (16) has an opening into which water droplets condensed from the water pervaporation process collect. The water collection well (16) is sited within the membrane base (14) and generally extends outwardly and downwardly from the membrane base (14), as shown in FIG. 1. In use, a contaminated water source (24) is brought into, ideally, complete contact with the membrane base (14), with the water collection well (16) arranged both to act as a heat sink into the water source (24) and to provide stability to the water still (10) when floating and immersed in the water source (24).

公开(公告)号：US20030155226A9

公开(公告)日：2003-08-21

申请号：US10011715

申请日：2001-12-11

发明人： Freeman Wilks

IPC分类号： C10B047/00 ,  B01D003/00 ,  C10B001/00

CPC分类号： B01D1/0017 ,  B01D3/42 ,  B01D5/0006 ,  B01D5/009 ,  C02F1/04 ,  F24H1/186 ,  Y10S203/08 ,  Y10T137/0374 ,  Y10T137/0826

摘要： A method and an apparatus for heating fluid with a gas heater and distilling fluid with the pilot light of the gas heater are disclosed. The apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a heater, adapted to have a pilot light, for heating the fluid in said main tank and an evaporator tank for vaporizing fluid received therein with heat from the pilot light. The method of heating fluid and distilling fluid includes heating a first volume of fluid with a heater having a pilot light and heating a second volume of fluid with the pilot light. A second apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a condensing tank adapted to pass fluid to said main tank, an evaporator tank for vaporizing fluid received therein, a condensing coil, disposed in said condensing tank, for exchanging heat between fluid vaporized by said evaporator tank and fluid in said condensing tank, a distillate tank adapted to receive condensed fluid from said condensing coil and an electric filament for heating fluid in said evaporator tank when a level in said distillate tank equals or exceeds a predetermined level.

公开(公告)号：US20030019737A1

公开(公告)日：2003-01-30

申请号：US10198433

申请日：2002-07-17

发明人： Yukihiro Matsumoto ,  Kazuhiko Sakamoto ,  Kenji Sanada

IPC分类号： B01D003/00 ,  B01D003/14

CPC分类号： B01D3/225 ,  B01D3/22 ,  B01D3/324 ,  Y10S203/11 ,  Y10S203/22

摘要： A perforated tray without downcomer having only a small deviation between the opening ratio based on the diameter of a column and the actual opening ratio and a perforated tray column without downcomer formed by disposing such perforated trays without downcomer are provided. The perforated trays without downcomer are characterized by having a ratio of (A)/(B) in the range of 1.1-1.5, wherein A denotes the opening ratio found from the standard pitch between centers of holes and (B) denotes the opening ratio based on the diameter of a column.

摘要翻译： 提供了一种没有降液管的多孔板，其具有基于塔的直径的开口率和实际开口率之间仅有小的偏差，以及没有降液管的多孔塔板塔，通过设置不具有降液管的多孔板而形成。 不含降液管的多孔塔板的特征在于（A）/（B）的比例在1.1-1.5的范围内，其中A表示从孔中心的标准间距所得的开口率，（B）表示开口率 基于柱的直径。

公开(公告)号：US20020195329A1

公开(公告)日：2002-12-26

申请号：US10083977

申请日：2002-02-27

发明人： Stuart Corr ,  Paul A. Dowdle ,  Robert E. Low ,  Frederick Thomas Murphy ,  James David Morrison

IPC分类号： B01D003/00 ,  C02F001/02

CPC分类号： B01D3/40 ,  B01D1/2846 ,  B01D11/028

摘要： An apparatus (10null) for extracting biomass includes an extractor (11), evaporator (12), compressor (13) and condenser (14) connected in series by pipework (17) to define a closed loop extraction circuit. A transfer line (18) selectively supplies hot solvent vapor from the outlet side of the compressor (13) to the interior of the extractor (11), where the solvent vapor heats the biomass. This causes stripping of solvent from the biomass. The transfer line (18) includes control elements (19,20) for controlling the flow of solvent vapor.

摘要翻译： 用于提取生物质的装置（10'）包括通过管道（17）串联连接的抽出器（11），蒸发器（12），压缩机（13）和冷凝器（14），以限定闭环提取电路。 输送管线（18）选择性地将热溶剂蒸汽从压缩机（13）的出口侧提供到提取器（11）的内部，其中溶剂蒸气加热生物质。 这导致从生物质中汽提溶剂。 输送管线（18）包括用于控制溶剂蒸汽流动的控制元件（19,20）。

公开(公告)号：US20020112993A1

公开(公告)日：2002-08-22

申请号：US09951987

申请日：2001-09-13

发明人： Frank Paul Puglisi

IPC分类号： B01D003/00

CPC分类号： B01D3/14 ,  C10G2400/02

摘要： A method of reducing the amount of energy required to fractionate a liquid hydrocarbon fraction is disclosed. Rather than use a single liquid feed point for a distillation column, the liquid feed is split into an upper feed portion and a lower feed portion. The lower feed portion is preheated to produce a vapor rich feed to a lower feed portion of the column, while charging, as a liquid, the remaining feed to an upper feed location at least one theoretical stage above the normal, single feed point location. Splitting the feed in this way reduces the total amount of heat required to reboil the column.

摘要翻译： 公开了减少分馏液体烃馏分所需能量的方法。 不是将单个液体进料点用于蒸馏塔，而是将液体进料分成上进料部分和下进料部分。 将下进料部分预热以产生富蒸气进料到塔的下进料部分，同时以正常的单进料点位置将至少一个理论塔作为液体将剩余进料充入上进料位置。 以这种方式分割进料减少了重新沸腾柱所需的总热量。

公开(公告)号：US20020110514A1

公开(公告)日：2002-08-15

申请号：US09994899

申请日：2001-11-28

申请人： MITSUI CHEMICALS, INC.

发明人： Takumi Kitahara ,  Tetsuya Nakano

IPC分类号： B01D003/00

CPC分类号： B01J31/143 ,  B01J27/10 ,  B01J31/0212 ,  B01J31/38 ,  B01J31/4015 ,  B01J38/48 ,  C01G23/02 ,  C08F10/00 ,  C22B34/1245 ,  C22B34/1259 ,  Y02P10/212 ,  Y02P20/584 ,  Y10S203/90 ,  C08F4/6555 ,  C08F4/654

摘要： The method for recovering a titanium compound according to the invention comprises bringing a waste solution containing a titanium alkoxide into contact with a halogenating agent to convert at least apart of the titanium alkoxide to a titanium halide and then distilling the solution containing the titanium halide to recover the titanium halide from the solution, or comprises distilling a waste solution containing a titanium alkoxide and a titanium halide to recover at least a part of the titanium halide from the waste solution, bringing a residue in distiller given after the distillation into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and distilling the solution containing the titanium halide to recover the titanium halide from the solution. According to the method of the invention, a larger amount of a titanium compound can be recovered from a waste solution containing a titanium alkoxide.

摘要翻译： 根据本发明的钛化合物的回收方法包括将含有钛醇盐的废溶液与卤化剂接触以将至少一部分钛醇盐转化成卤化钛，然后蒸馏含有卤化钛的溶液以回收 来自溶液的卤化钛，或者包括蒸馏含有钛醇盐和卤化钛的废溶液以从废溶液中回收至少一部分卤化钛，使蒸馏后给出的蒸馏器中的残余物与卤化物接触 将烷氧基钛的至少一部分转化为卤化钛，并蒸馏含有卤化钛的溶液以从溶液中回收卤化钛。 根据本发明的方法，可以从含有钛醇盐的废溶液中回收更多量的钛化合物。

公开(公告)号：US20020092762A1

公开(公告)日：2002-07-18

申请号：US09765475

申请日：2001-01-18

发明人： William H. Zebuhr

IPC分类号： B01D001/20 ,  B01D003/00

CPC分类号： B01D5/0069 ,  B01D1/28 ,  B01D3/08 ,  B01D5/0072

摘要： A distillation unit (10) includes a filter (116) through which feed water passes before it is introduced into a rotary heat exchanger (32) for evaporation and subsequent condensation. During a normal mode of operation, liquid that has not evaporated as a result of passage through the rotary heat exchanger's evaporation chambers (56) is recirculated for reintroduction into those chambers, together with a minor amount of feed liquid from the filter to make up for evaporation. At the same time, some filtered feed water is fed into one side of a transfer pump (166), where it slowly accumulates. Periodically, though, during short flushing-mode periods, the erstwhile recirculating liquid is redirected at a relatively high flow rate through the filter (116) in the reverse direction, thereby flushing it. In flowing rapidly from the filter, it also rushes into the other side of the transfer pump (166), forcing the feed liquid that had accumulated in it to take the place of the recirculating liquid as the major constituent of the liquid sprayed into the evaporation chambers. This periodic flushing reduces particulate loading in the filter.

摘要翻译： 蒸馏单元（10）包括过滤器（116），在被引入到旋转式热交换器（32）中之前，给水通过该过滤器，用于蒸发和随后的冷凝。 在通常的操作模式中，由于通过旋转热交换器的蒸发室（56）而没有蒸发的液体被再循环以再次引入到这些室中，以及少量的来自过滤器的进料液体以弥补 蒸发。 同时，一些过滤的进料水被送入转移泵（166）的一侧，其中它缓慢地积聚。 然而，周期性地，在短时间冲洗模式期间，先前的再循环液体以相对较高的流速通过过滤器（116）反向重新定向，从而将其冲洗。 在过滤器中快速流动时，它还冲入输送泵166的另一侧，迫使积聚在其中的进料液体代替再循环液体，作为喷入蒸发器中的液体的主要成分 房间。 这种周期性冲洗减少了过滤器中的颗粒负载。

公开(公告)号：US20020092759A1

公开(公告)日：2002-07-18

申请号：US09765263

申请日：2001-01-18

发明人： William H. Zebuhr

IPC分类号： B01D001/26 ,  B01D003/00

CPC分类号： B01D5/0069 ,  B01D1/2887 ,  B01D3/08 ,  B01D5/0072 ,  Y10S203/08 ,  Y10S203/11

摘要： A distillation unit (10) employs a rotary heat exchanger (32) forming a multiplicity of evaporation chambers (56) into which a liquid to be purified is sprayed for evaporation. Spray arms (58) spray at a steady rate into all of the evaporation chambers (56) simultaneously but not at a rate that is adequate to maintain the wetting required for efficient transfer of heat to the liquid. A scanning sprayer (140) supplements this steady spray with spray from nozzles (142 and 144) into only a few of the evaporation chambers at a time, visiting all of them cyclically. The overall rate of spray from the two sources thus combined to spray the chamber cyclically maintains proper wetting even though on average it is lower than the rate that would be required of a constant-rate spray into all of the evaporation chambers.

摘要翻译： 蒸馏单元（10）使用形成多个蒸发室（56）的旋转热交换器（32），待蒸发的液体被喷射到该蒸发室中。 喷雾臂（58）以稳定的速率同时喷射到所有的蒸发室（56）中，但不以足以保持有效地将热量传递到液体所需的润湿的速率。 扫描喷雾器（140）通过喷嘴（142和144）的喷雾补充这种稳定的喷雾，一次只能进入几个蒸发室，循环访问它们。 因此，从两个来源组合的喷雾总速率循环地喷雾室保持适当的润湿，即使它平均低于恒定速率喷雾到所有蒸发室中所需的速率。