Butadiene purification with simultaneous prefractionation and
vinylacetylene rejection
    1.
    发明授权
    Butadiene purification with simultaneous prefractionation and vinylacetylene rejection 失效
    丁二烯净化与同时初步分离和乙炔乙炔排斥

    公开(公告)号:US4090923A

    公开(公告)日:1978-05-23

    申请号:US785157

    申请日:1977-04-06

    CPC classification number: C07C7/005 C07C7/08

    Abstract: A C.sub.4 -hydrocarbon feedstream containing butenes, butadiene, and vinylacetylene is subjected to a first extractive distillation with a selective solvent to remove butenes and a first portion of vinylacetylene as the extract; by the extraction with a minor quantity of methylethyl ketone in the selective solvent in this step, it has been found that a major portion of the vinylacetylene can be rejected, together with the butenes in the rich extract and that simultaneously the quantity of butadiene extracted could be considerably reduced; in a second extractive distillation the butadiene-rich raffinate of the first extractive distillation is further purified by extractive distillation using a mixture of sulfolane and methylethyl ketone as the solvent; after solvent stripping, the butadiene stream is finally purified in a fractionation step, wherein further vinylacetylene is removed.

    Abstract translation: 将含有丁烯,丁二烯和乙烯基乙炔的C 4烃进料流用选择性溶剂进行第一次萃取蒸馏以除去丁烯,将第一部分乙烯基乙炔作为提取物; 通过在该步骤中通过在选择性溶剂中用少量的甲基乙基酮萃取,已经发现乙烯基乙炔的主要部分与富提取物中的丁烯一起被排除,并且同时提取的丁二烯的量可以 大大减少 在第二萃取蒸馏中,第一萃取蒸馏的富含丁二烯的萃余液通过萃取蒸馏进一步纯化,使用环丁砜和甲基乙基酮作为溶剂的混合物; 溶剂汽提后,在分馏步骤中最后纯化丁二烯流,其中除去进一步的乙烯基乙炔。

    Catalyst preparation
    2.
    发明授权
    Catalyst preparation 失效
    催化剂制备

    公开(公告)号:US4176086A

    公开(公告)日:1979-11-27

    申请号:US827519

    申请日:1977-08-25

    Inventor: Cecil O. Carter

    CPC classification number: B01J31/24 B01J31/143 B01J2531/847

    Abstract: Preparation of a hydrocarbon-soluble nickel complex substantially free of moisture comprising reacting a nickel compound with an organic complexing agent in a hydrocarbon solvent to form a complex, allowing the complex to settle and separate into a water phase and a hydrocarbon solution of the complex, then drying the hydrocarbon solution of complex by azeotropic distillation. The substantially anhydrous nickel complex obtained can be mixed with an alkylaluminum halide to form a catalyst system useful for the dimerization of olefins.

    Abstract translation: 基本上不含水分的烃溶性镍络合物的制备包括在烃溶剂中使镍化合物与有机络合剂反应形成络合物,使络合物沉降并分离成复合物的水相和烃溶液, 然后通过共沸蒸馏干燥复合物的烃溶液。 获得的基本上无水的镍络合物可以与烷基铝卤化物混合以形成可用于烯烃二聚的催化剂体系。

    HF recovery with alkyl fluoride formation and utility in alkylation
    3.
    发明授权
    HF recovery with alkyl fluoride formation and utility in alkylation 失效
    HF回收与烷基氟化物形成和在碱性中的应用

    公开(公告)号:US4009221A

    公开(公告)日:1977-02-22

    申请号:US588558

    申请日:1975-06-19

    Inventor: Cecil O. Carter

    CPC classification number: C07C2/62 C07C2527/1206

    Abstract: A process and apparatus for HF alkylation wherein the vapor from the fractionation zone in which the effluent of the reaction zone is fractionated is contacted with water, the mixture formed is reacted with an olefin to form an alkyl fluoride, the alkyl fluoride is recovered and reintroduced into the alkylation reaction zone.

    Olefin dimerization
    4.
    发明授权
    Olefin dimerization 失效
    烯烃二聚

    公开(公告)号:US4242531A

    公开(公告)日:1980-12-30

    申请号:US933345

    申请日:1978-08-14

    Inventor: Cecil O. Carter

    CPC classification number: C07C2/30 C07C2/08 C07C2531/14 Y02P20/582

    Abstract: Olefins are dimerized in a loop reactor with flashing of the reactor effluent in a flashing zone within the loop. A subsequent flash in a second flashing zone can also be used for the removal of product as flash vapor. In another embodiment, separated product dimers or product heavies are used as absorbents for unreacted ethylene. The use of a vapor-liquid contacting device incorporated in the loop reactor is especially helpful in the dimerization of an olefin when the olefin is available in low-concentration gas streams. A thermosiphon loop reactor can also be used for low-concentration olefin streams to minimize the power requirements as the energy of the feed gas is used to induce the reactor circulation.

    Abstract translation: 烯烃在环管反应器中二聚化,反应器流出物在循环内的闪蒸区域闪烁。 第二闪光区域中的后续闪光也可用于将产物作为闪蒸蒸汽去除。 在另一个实施方案中,分离的产物二聚体或产物重质物用作未反应的乙烯的吸收剂。 使用结合在环管反应器中的气液接触装置特别有助于烯烃在低浓度气流中可用时二烯化。 热源环管反应器也可用于低浓度烯烃流,以使进料气体的能量用于诱导反应器循环而使功率要求最小化。

    Process and apparatus for removing H.sub.2 S from gas streams
    5.
    发明授权
    Process and apparatus for removing H.sub.2 S from gas streams 失效
    从气流中除去H 2 S的工艺和设备

    公开(公告)号:US4741884A

    公开(公告)日:1988-05-03

    申请号:US431443

    申请日:1982-09-30

    CPC classification number: B01D53/1406 B01D53/1462 C07C7/11 Y02P20/152

    Abstract: A gas stream containing CO.sub.2 and H.sub.2 S is contacted with an alkanolamine in a contacting zone. The rich solution is then selectively stripped in a stripping zone to produce a gas stream containing a higher CO.sub.2 :H.sub.2 S mole ratio than the initial stream. This stream can be recycled to the alkanolamine contacting zone. The partially stripped solution can be introduced into another stripping zone to provide a third gas stream which is rich in H.sub.2 S and lean in CO.sub.2 suitable as feed for a Claus Unit and a lean alkanolamine solution which can be recycled to the contacting zone.

    Abstract translation: 含有CO 2和H 2 S的气流与接触区中的链烷醇胺接触。 然后将富溶液在汽提区中选择性汽提,产生含有比起始物流更高的CO 2 :H 2 S摩尔比的气流。 该物流可以再循环到链烷醇胺接触区。 部分汽提的溶液可以被引入到另一个汽提区,以提供富含H 2 S和贫二氧化碳的第三气流,适合作为克劳斯单元和贫链烷醇胺溶液的进料,其可以再循环到接触区。

    Liquid-liquid extraction of low boiling olefin contained in
olefin-paraffin mixture using sulfolane-ketone solvent system
    6.
    发明授权
    Liquid-liquid extraction of low boiling olefin contained in olefin-paraffin mixture using sulfolane-ketone solvent system 失效
    使用环丁砜 - 酮溶剂系统液相萃取烯烃 - 石蜡混合物中所含的低沸点烯烃

    公开(公告)号:US4385196A

    公开(公告)日:1983-05-24

    申请号:US264310

    申请日:1981-05-18

    Inventor: Cecil O. Carter

    CPC classification number: C07C7/10

    Abstract: A solvent system composed essentially of sulfolane and a ketone, e.g., sulfolane and methyl ethyl ketone is employed in a liquid-liquid extraction operation to separate a low boiling olefin, e.g., pentene-2, hexene-1, octene-1, etc., from a corresponding close boiling paraffin, e.g., n-pentane, n-hexane, and n-octane, respectively, and wherein solvent is recovered by employing a portion thereof in a drying or stripping column.

    Abstract translation: 在液 - 液萃取操作中使用基本上由环丁砜和酮组成的溶剂体系,例如环丁砜和甲基乙基酮来分离低沸点烯烃,例如戊烯-2,己烯-1,辛烯-1等。 ,分别来自相应的接近沸腾的石蜡,例如正戊烷,正己烷和正辛烷,并且其中通过在干燥或汽提塔中使用其一部分回收溶剂。

    Bulk CO.sub.2 recovery process
    8.
    发明授权
    Bulk CO.sub.2 recovery process 失效
    大量二氧化碳回收过程

    公开(公告)号:US5061465A

    公开(公告)日:1991-10-29

    申请号:US397947

    申请日:1989-08-24

    Inventor: Cecil O. Carter

    CPC classification number: B01D53/1456 B01D53/1418 B01D53/1425 B01D53/1493

    Abstract: A high temperature absorption process for bulk recovery of CO.sub.2 comprises contacting a gaseous mixture containing CO.sub.2, H.sub.2 S, and natural gas with C.sub.3 and heavier components and having a high and variable CO.sub.2 loading, with an amine absorbent solution at a temperature above 220.degree. F. The amine absorbent solution is continuously regenerated in a multiple section flashing so as to reduce the energy requirements for regeneration and thereby making the process more suitable for bulk recovery of CO.sub.2 from gas streams associated with enhanced oil recovery projects employing CO.sub.2 for miscible flood of oil reservoirs.

    Abstract translation: 用于大量回收CO 2的高温吸收方法包括使含有CO 2,H 2 S和天然气的气体混合物与C3和较重组分接触,并且具有高且可变的CO 2负载量,在高于220°F的温度下与胺吸收剂溶液接触。 胺吸收剂溶液以多部分闪蒸连续再生,从而降低再生能量的需求,从而使该方法更适合于与利用二氧化碳混合的油藏的强化采油项目相关的气流的大量回收CO2 。

    Process to separate ethyl fluoride and HF
    10.
    发明授权
    Process to separate ethyl fluoride and HF 失效
    分离氟化乙烯和HF的方法

    公开(公告)号:US4021312A

    公开(公告)日:1977-05-03

    申请号:US699549

    申请日:1976-06-24

    Inventor: Cecil O. Carter

    CPC classification number: C07C17/38 C07C2/62 C07C7/04 C07C2527/1206

    Abstract: The overhead stream of a deisobutanizer in an HF-alkylation plant is extracted with HF to produce a stream containing isobutane, HF and ethyl fluoride, which in turn is fractionated under a pressure of about 150 to 300 psig. The bottoms stream of this fractionation, then, is fractionated under a pressure of 50 to 145 psig to produce a relatively pure ethyl fluoride overhead stream and a relatively pure HF bottoms stream.

    Abstract translation: HF-烷基化装置中脱异丁烷的顶部物流用HF萃取以产生含有异丁烷,HF和氟化乙烯的物流,其又在约150至300psig的压力下分馏。 然后,在50至145psig的压力下将该分馏的塔底物流分馏,以产生相对纯的氟乙烷塔顶馏出物流和相对纯的HF塔底物流。

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