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1. 发明专利

MX9501398A UN PROCEDIMIENTO MEJORADO PARA LA PURIFICACION DE ACIDOS METACRILICOS. 未知
公开(公告)号：MX9501398A
公开(公告)日：1998-10-31
申请号：MX9501398
申请日：1995-03-16
申请人： ROHM & HAAS
发明人： BAUER WILLIAM JR , MASON ROBERT MICHAEL , UPMACIS RITA KARINA
IPC分类号： C07C51/00 , C07C51/347 , C07C51/377 , C07C51/43 , C07C51/44 , C07C57/03 , C07C57/04 , C07C57/07 , C07C07/04
摘要： Un proceso para la preparacion de un ácido carboxílico C3-C6 a, beta-insaturado con mayor del 98% de pureza, el cual combina los procedimientos de destilacion fraccionada y de cristalizacion de la masa fundida.

2. 发明公开

EP0233609A3 Improved nitrogen rejection fractionation system for variable nitrogen content natural gas 失效
$Improved nitrogen rejection fractionation system for variable nitrogen content natural gas$
标题翻译：改进硝态氮分解系统，适用于天然气变化的天然气
公开(公告)号：EP0233609A3
公开(公告)日：1987-12-02
申请号：EP87102068
申请日：1987-02-13
申请人： AIR PRODUCTS AND CHEMICALS, INC.
发明人： Davis, Ruth Ann
IPC分类号： F25J03/08 , F25J03/02 , C07C07/04
CPC分类号： F25J3/0257 , C07C7/09 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/04 , F25J2200/40 , F25J2200/50 , F25J2200/72 , F25J2205/04 , F25J2210/06 , F25J2240/02 , F25J2240/12 , F25J2260/42 , F25J2270/04 , F25J2270/12 , F25J2270/60 , Y10S62/927 , C07C9/04
摘要： The present invention is directed to a gas separation system for separating or rejecting nitrogen from a natural gas feed (1) containing nitrogen, over a wide range of nitrogen concentrations, under elevated pressure using a single distillation column (19) with two intermediate side condensers (21, 37) and a closed loop heat pump which reboils and partially refluxes the column. The lower (37) of the intermediate condensers is cooled by heat exchange with the heat pump fluid and the overhead nitrogen fraction of the column. The upper (21) of the intermediate condensers is cooled by heat exchange with the overhead nitrogen fraction of the column. The process can handle feeds with increasing nitrogen composition and more than 100 vppm carbon dioxide. The process provides a high methane recovery over the entire feed range, and provides a nitrogen product having an elevated pressure suitable for recycling and reinjection into an oil or gas well to maintain well head pressure.

3. 发明申请

WO1992008682A1 SEQUENCE FOR SEPARATING PROPYLENE FROM CRACKED GASES 审中-公开
标题翻译：从裂缝气体中分离丙烯的顺序
公开(公告)号：WO1992008682A1
公开(公告)日：1992-05-29
申请号：PCT/US1991007641
申请日：1991-10-18
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , STRACK, Robert, David , VEBELIUNAS, Rimas, Virgilijus , BAMFORD, David, Alan , HALLE, Roy, Thomas
IPC分类号： C07C07/04
CPC分类号： F25J3/0242 , C10G70/02 , C10G70/041 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0252 , F25J2210/12 , F25J2215/62 , F25J2215/64
摘要： A process sequence for treating cracked gases of heavy feedstocks which preferentially produces propylene to the exclusion of propane, butanes and butenes. The process eliminates the need for a depropanizer with the attendant savings in capital and operating costs. In lieu of a conventional C3 splitter, the process features a depropylenizer, i.e. a distillation tower designed to separate propylene from propane, butanes and butenes. A hydrogenation unit to eliminate contaminants can be placed upstream of the depropylenizer or the depropylenizer can be split into two sections with the hydrogenation unit located between the two sections.

4. 发明申请

WO1995006019A1 ISOLATION OF HIGH PURITY DIAMONDOID, FRACTIONS AND COMPONENTS 审中-公开
标题翻译：分离高纯度金刚石，分子和组分
公开(公告)号：WO1995006019A1
公开(公告)日：1995-03-02
申请号：PCT/US1994009435
申请日：1994-08-22
申请人： MOBIL OIL CORPORATION
发明人： MOBIL OIL CORPORATION , CHEN, Catherine, S., H. , WENTWEK, Steven, E.
IPC分类号： C07C07/04
CPC分类号： C07C7/04
摘要： A method of separating high purity diamondoid fractions from a mixture of diamondoid compounds comprising the steps of: (a) providing a feed containing at least 25 weight percent diamondoid compounds and at least 40 total weight percent substituted and unsubstituted adamantane, at least 30 total weight percent substituted and unsubstituted diamantane, and at least about 5 total weight percent substituted and unsubstituted triamantane; (b) distilling an overhead fraction in the absence of a reflux; (c) cooling said overhead to a temperature above the freeze point of the feed mixture; (d) recovering unsubstituted diamondoid solids from said overhead fraction at a purity of at least 90 weight percent, and (e) distilling said overhead fraction with reflux to recover substituted diamondoids.
摘要翻译：从金刚石化合物的混合物中分离高纯度金刚石级分的方法，包括以下步骤：（a）提供含有至少25重量％的金刚石化合物和至少40个总重量百分比的取代和未取代的金刚烷，至少30个总重量百分比的取代和未取代的二金刚烷，和至少约5重量百分比的取代和未取代的三金刚烷; （b）在不存在回流的情况下蒸馏塔顶馏分; （c）将所述塔顶馏出物冷却至高于进料混合物冷冻点的温度; （d）以至少90重量％的纯度从所述塔顶馏分中回收未取代的金刚石固体，和（e）用回流蒸馏所述塔顶馏分以回收取代的金刚石。

5. 发明申请

WO1988000936A1 PROCESS FOR SEPARATING A GAS MIXTURE OF C2+ OR C3+ or C4 HYDROCARBONS 审中-公开
标题翻译：分离C2 +或C3 +或C4烃类气体混合物的方法
公开(公告)号：WO1988000936A1
公开(公告)日：1988-02-11
申请号：PCT/EP1987000427
申请日：1987-08-04
申请人： LINDE AKTIENGESELLSCHAFT , BAUER, Heinz
发明人： LINDE AKTIENGESELLSCHAFT
IPC分类号： C07C07/04
CPC分类号： C07C7/04 , F25J3/0219 , F25J3/0238 , F25J3/0242 , F25J3/0247 , F25J3/0252 , F25J2200/74 , F25J2200/90 , F25J2205/02 , F25J2210/12 , F25J2215/66 , F25J2235/60 , F25J2270/02 , F25J2270/04 , F25J2270/06 , F25J2270/12
摘要： The aim is to separate, by cooling and partial condensation of C2+, C3+ or C4 hydrocarbons contained in a gas mixture comprising, in addition to these components, even lighter constituents. For this purpose, the gas mixture is at first cooled until condensation of a smaller part of the hydrocarbons to be separated, after which the mixture is fed into the lower region of a fractionating column. A gaseous fraction is removed from the upper region of said column and is then again cooled and partly condensed in a heat exchanger, after which this partly condensed fraction is conveyed to the top of the fractionating column in the form of a return flow. In the case of C4 separation, the C4 hydrocarbons must represent more than 50% of the hydrocarbons contained in the gas.
摘要翻译：目的是通过冷却和部分冷凝包含在气体混合物中的C2 +，C3 +或C4烃来分离，除了这些组分外，还包含更轻的成分。为此，气体混合物首先被冷却直到较小部分待分离的烃的冷凝，之后将混合物进料到分馏塔的下部区域。从所述塔的上部区域除去气体馏分，然后在热交换器中再次冷却并部分冷凝，之后将部分冷凝馏分以回流的形式输送到分馏塔的顶部。在C4分离的情况下，C4烃必须代表气体中所含的烃的50％以上。

6. 发明公开

EP0137744A3 Separation of hydrocarbon mixtures 有权转让
标题翻译：油气混合物的分离
公开(公告)号：EP0137744A3
公开(公告)日：1986-05-28
申请号：EP84306243
申请日：1984-09-12
申请人： COSTAIN PETROCARBON LIMITED , DUT Pty Limited
发明人： Tomlinson, Terence Ronald , Cummings, Donald Ray
IPC分类号： F25J03/02 , F25J03/08 , C07C07/04
CPC分类号： F25J3/0252 , C07C7/09 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/04 , F25J2200/80 , F25J2210/04 , F25J2230/60 , F25J2235/60 , F25J2245/02 , F25J2270/04 , F25J2270/12 , F25J2270/60 , F25J2270/66 , F25J2270/902
摘要： In the process for the recovery of e.g. LPG or NGL and sales gas from a gaseous hydrocarbon feed 11 by partially condensing the feed in heat exchanger 1 at superatmospheric pressure, separating the condensate from the uncondensed gas in gas/liquid separator 2, rectifying the uncondensed gas to produce the sales gas and stripping the condensate to produce the LPG or NGL, subtstantially power savings are obtained if the rectification is effected in a reflux exchanger 103 and the stripping is effected in a separate distillation column 203.

7. 发明公开

EP0204518A3 Process for separating methane and nitrogen 失效
标题翻译：分离甲烷和硝酸的方法
公开(公告)号：EP0204518A3
公开(公告)日：1987-08-05
申请号：EP86304095
申请日：1986-05-29
申请人： UNION CARBIDE CORPORATION
发明人： Pahade, Ravindra Fulchand , Saunders, John Bernard , Maloney, James Joseph
IPC分类号： F25J03/02 , C07C07/04 , C07C09/04
CPC分类号： F25J3/0257 , F25J3/0209 , F25J3/0233 , F25J2200/02 , F25J2200/50 , F25J2200/74 , F25J2205/02 , F25J2270/12 , F25J2270/66 , Y10S62/927
摘要： A process for the separation of methane and nitrogen characterized by
(a) introducing a feed comprising methane and nitrogen into a rectification column operating at a pressure in the range of from 200 to 450 psia; (b) separating the feed in the rectification column into a nitrogen-enriched vapor and a methane-enriched liquid; (c) partially condensing nitrogen-enriched vapor by indirect heat exchange with heat pump fluid to warm the heat pump fluid; (d) employing at least some of the resulting liquid of step (c) as reflux liquid for the column; (e) partially vaporizing methane-enriched liquid by indirect heat exchange with warm heat pump fluid; (f) employing at least some of the resulting vapor of step (e) as refluxed vapor for the column; (g) warming remaining methane-enriched liquid of step (e) by indirect heat exchange with warm heat pump fluid wherein not more than 75 percent of the remaining methane-enriched liquid is vaporized; (h) further warming the warmed methane-enriched fluid of step (g) by indirect heat exchange with feed prior to the introduction of the feed into the column; and (i) recovering resulting methane-enriched fluid as product-methane, thereby providing refrigeration to the column at or below column temperature levels.

8. 发明公开

EP0185253A3 Process for recovering C2+ or C3+ hydrocarbons 有权
标题翻译：回收C2 +或C3 +碳氢化合物的方法
公开(公告)号：EP0185253A3
公开(公告)日：1986-07-30
申请号：EP85115408
申请日：1985-12-04
申请人： Linde Aktiengesellschaft
发明人： Bauer, Heinz, Dr. rer. nat.
IPC分类号： C07C07/04 , F25J03/08
CPC分类号： C07C7/005 , C07C7/04 , C07C7/09 , F25J3/0209 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/04 , F25J2200/70 , F25J2200/74 , F25J2200/78 , F25J2205/04 , F25J2210/12 , F25J2235/60 , F25J2270/02 , F25J2270/04 , F25J2270/06 , F25J2270/90

9. 发明公开

EP0170182A3 Process for obtaining butene-2 from hydrocarbon mixtures containing butene-1 and possibly butene-2 有权
标题翻译：从含有BUTENE-1和可能的BUTENE-2的油气混合物中获得BUTENE-2的方法
公开(公告)号：EP0170182A3
公开(公告)日：1986-05-21
申请号：EP85109124
申请日：1985-07-22
申请人： BASF Aktiengesellschaft
发明人： Lindner, Alfred, Dr. , Mross, Wolf Dieter, Dr. , Strohmeyer, Max, Dr. , Volkamer, Klaus, Dr.
IPC分类号： C07C11/08 , C07C05/25 , C07C07/04
CPC分类号： C07C11/08 , C07C5/2518 , C07C5/2537 , C07C5/2556 , C07C7/04

10. 发明申请

WO1998029366A1 RECOVERY OF A SECONDARY ETHYLENE STREAM FROM AN ETHYLENE PURIFICATION PROCESS 审中-公开
标题翻译：从乙烯净化过程中恢复二次乙烯流
公开(公告)号：WO1998029366A1
公开(公告)日：1998-07-09
申请号：PCT/US1997023878
申请日：1997-12-31
申请人： EXXON CHEMICAL PATENTS INC.
发明人： EXXON CHEMICAL PATENTS INC. , KUECHLER, Keith, H. , LUMGAIR, David, R., Jr.
IPC分类号： C07C07/04
CPC分类号： C07C7/04 , C07C7/005 , C07C11/02 , C07C15/073 , C07C29/16 , C07C45/50 , C10G70/041 , F25J3/0219 , F25J3/0238 , F25J3/0242 , F25J2200/38 , F25J2205/40 , F25J2205/80 , F25J2210/12 , F25J2215/62 , Y10S62/925 , C07C31/08 , C07C47/02
摘要： The invention relates to a process for the production of a secondary ethylene stream (10) from a pressurised mixed olefin bearing charge gas (4) as the overhead of one fractional distillation tower (2) contained in an overall olefin recovery and separation facility, wherein said tower is operated under conditions to produce a bottom stream (15) from which a primary ethylene rich product stream (20) can be recovered. This may eliminate the need for cryogenic fractional distillation and/or the need for a circulating lean oil absorbant material.
摘要翻译：本发明涉及一种用于从包含在整个烯烃回收和分离设备中的一个分馏塔（2）的塔顶产生来自加压混合烯烃的加料气体（4）的次级乙烯物流（10）的方法，其中所述塔在条件下运行以产生可回收初级富乙烯产物流（20）的塔底物流（15）。这可以消除对低温分馏的需要和/或对循环的贫油吸收材料的需要。

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