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    Fractionation of effluent from HF catalyzed alkylation
    4.
    发明授权
    Fractionation of effluent from HF catalyzed alkylation 失效
    从HF催化烷基化中分出流出物

    公开(公告)号：US3929924A

    公开(公告)日：1975-12-30

    申请号：US47822674

    申请日：1974-06-11

    Applicant: PHILLIPS PETROLEUM CO

    Inventor： CHAPMAN CHARLES C

    IPC: C07C2/62 ,  C07C7/00 ,  C07C3/54

    CPC classification number: C07C2/62 ,  C07C7/005 ,  C07C2527/1206 ,  C07C9/00

    Abstract: A depropanizer overhead from fractionation of an HF catalyzed isoparaffin-olefin alkylation is partially condensed to form a stream relatively poor in ethane and vapors relatively rich in ethane. The stream relatively poor in ethane is used as reflux and is pumped by a pump to a depropanizer-fractionator. Vapors rich in ethane are condensed, contacted with liquid HF and are used as feed to an HF stripping zone. Bottoms from the stripping zone consisting essentially of ethane and propane to be yielded from the operation are flashed to form overhead ethane and propane yield and a bottoms propane stream poor in ethane and lean in HF and said stream poor in ethane and lean in HF is used as flush for said pump. HF stripper overhead is at least in part condensed, two liquid phases are formed, the acid phase is removed and the hydrocarbon phase is returned as reflux to the stripper and/or the overhead is at least in part condensed and the condensate thus obtained intermingled with the condensate obtained when condensing the vapors rich in ethane; phases are formed, and acid phase formed is separated and hydrocarbon phase is used as feed to the stripping zone. A pump is provided to draw from an extractor-settler HF acid settled therein and to admix therewith either or both the condensates obtained upon condensing the ethane rich vapor and that obtained upon condensing HF stripper overhead, thus intermingled liquids are passed to said extractor-settler from which an acid phase formed is separated and hydrocarbon phase formed is passed to the stripping operation. Flush for the pump is provided by the propane lean in ethane and lean in HF.

    Abstract translation: 来自HF催化的异链烷烃 - 烷基化烷基化的分馏的脱丙烷塔塔顶馏分部分冷凝以形成相对较差的乙烷和相对富含乙烷的蒸汽。 乙烷中相对较差的物流用作回流，并通过泵泵送至脱丙烷分馏器。 富含乙烷的蒸气冷凝，与液体HF接触，用作HF汽提区的进料。 来自操作产生的基本上由乙烷和丙烷组成的汽提区的底部被闪蒸以形成塔顶乙烷和丙烷产率，并且使用在乙烷和贫HF中的不良乙烷的塔底丙烷流，并且使用所述不良的乙烷和HF中的贫水。 与所述泵齐平。 HF汽提塔顶部至少部分冷凝，形成两个液相，除去酸相，并将烃相作为回流返回至汽提塔和/或塔顶馏出物至少部分冷凝，并将由此获得的冷凝物与 当冷凝富含乙烷的蒸气时获得的冷凝物; 形成相，形成酸相并分离烃相作为汽提区的进料。 提供泵以从沉降在其中的提取器 - 沉降器HF酸吸取并与其中冷凝富乙烷蒸气获得的冷凝物和在冷凝HF汽提塔顶部获得的冷凝物之一或两者混合，由此将混合的液体通入所述萃取 - 沉降器 从中形成的酸相被分离并且形成烃相以进行剥离操作。 泵的冲洗由丙烷贫乙烷和HF中的稀释提供。

    Production of ethyl fluoride for hf alkylation
    6.
    发明授权
    Production of ethyl fluoride for hf alkylation 失效
    氟化氢氟化物的生产

    公开(公告)号：US3872181A

    公开(公告)日：1975-03-18

    申请号：US28893772

    申请日：1972-09-14

    Applicant: PHILLIPS PETROLEUM CO

    Inventor： CHAPMAN CHARLES C

    IPC: C07C2/62 ,  C07C9/16 ,  C07C17/08 ,  C07C3/54

    CPC classification number: C07C9/16 ,  C07C2/62 ,  C07C17/08 ,  C07C2527/1206 ,  Y10S585/935 ,  C07C19/08

    Abstract: An improved HF alkylation process is described which comprises alkylating an isoparaffin with an olefin, separating a stream containing HF and ethane from the reaction effluent, contacting this separated stream with ethylene to convert the HF content of the stream to ethyl fluoride, thereafter separating ethane free of HF from the ethyl fluoride. A preferred embodiment comprises passing the separated ethyl fluoride to the alkylation zone to provide at least a portion of the ethyl fluoride requirements for an improved ethyl fluoride promoted HF alkylation process.

    Abstract translation: 描述了一种改进的HF烷基化方法，其包括用烯烃烷基化异链烷烃，从反应流出物中分离含有HF和乙烷的物流，使该分离的物流与乙烯接触，将该流的HF含量转化成乙基氟，然后分离出无乙烷 的氟化乙烯。 一个优选的实施方案包括将分离出的氟化乙烯通过烷基化区以提供氟乙烯促进的HF烷基化方法中至少一部分氟化乙烯的要求。

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