PROCESS FOR THE SELECTIVE DESULFURIZATION OF A MID RANGE GASOLINE CUT
    1.
    发明申请
    PROCESS FOR THE SELECTIVE DESULFURIZATION OF A MID RANGE GASOLINE CUT 审中-公开
    中型汽油切割机的选择性脱硫方法

    公开(公告)号:WO2003076551A1

    公开(公告)日:2003-09-18

    申请号:PCT/US2003/003719

    申请日:2003-02-06

    CPC classification number: C10G65/02 C10G2300/4087 C10G2400/02

    Abstract: A full boiling range naphtha is concurrently fractionated and treated. The full boiling range naphtha streams is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and a heavy boiling range naphtha in a distillation column reactor (10). The intermediate boiling range naphtha containing thiophene and thiophene boiling range mercaptans is passed on to a polishing hydrodesulfurization reactor (40) where a low sulfur, low olefin gas oil is concurrently fed to the polishing reactor (40) to insure that a liquid phase is present.

    Abstract translation: 全沸点石脑油同时分馏和处理。 全沸点石脑油流首先在蒸馏塔式反应器(10)中同时进行硫代醚化和分解成轻沸点石脑油,中沸程石脑油和重沸点石脑油。 含有噻吩和噻吩沸点范围的硫醇的中沸程石脑油被传递到抛光加氢脱硫反应器(40),其中低硫低烯烃瓦斯油同时进料到抛光反应器(40)以确保存在液相 。

    PROCESS FOR THE PRODUCTION OF LOW BENZENE GASOLINE
    2.
    发明申请
    PROCESS FOR THE PRODUCTION OF LOW BENZENE GASOLINE 审中-公开
    生产低苯乙烯汽油的方法

    公开(公告)号:WO2004069775A2

    公开(公告)日:2004-08-19

    申请号:PCT/US2003/041473

    申请日:2003-12-30

    IPC: C07C

    CPC classification number: C10G49/002 C10G2400/02

    Abstract: A process for the production of low benzene content gasoline is disclosed wherein a full boiling range naphtha is fractionated to produce a light naphtha, a medium naphtha and a heavy naphtha. The benzene is contained in the medium naphtha and this stream is subjected to hydrogenation to convert the benzene to cyclohexane which may be isomerized to improve the octane. The valuable olefins are removed in the light naphtha and the valuable heavier aromatics (toluene and xylenes) are removed in the heavy naphtha. In a preferred embodiment all of the reactions are carried out in distillation column reactors.

    Abstract translation: 公开了一种生产低苯含量汽油的方法,其中将全沸程石脑油分馏以产生轻石脑油,中等石脑油和重石脑油。 苯被包含在中等石脑油中,该物流进行氢化,将苯转化为可被异构化以改善辛烷值的环己烷。 在轻石脑油中除去有价值的烯烃,并在重质石脑油中除去有价值的较重芳族化合物(甲苯和二甲苯)。 在优选的实施方案中,所有反应都在蒸馏塔反应器中进行。

    SELECTIVE HYDROGENATION OF ACETYLENES
    3.
    发明申请
    SELECTIVE HYDROGENATION OF ACETYLENES 审中-公开
    乙烯选择性氢化

    公开(公告)号:WO2004014824A1

    公开(公告)日:2004-02-19

    申请号:PCT/US2003/018583

    申请日:2003-06-12

    Abstract: A process for removing acetylenic compounds using unsulfided metallic nickel or unsulfided metallic nickel modified with metallic Mo, Re, Bi or mixtures in which the catalyst is used alone or is used in combination with other acetylenic selective catalysts. The unsulfided metallic nickel catalyst or modified catalyst is preferably the first catalyst to contact the hydrocarbon stream.

    Abstract translation: 使用用金属Mo,Re,Bi改性的未硫化金属镍或未硫化金属镍除去炔属化合物的方法或其中催化剂单独使用或与其它炔属选择性催化剂组合使用的混合物。 未硫化的金属镍催化剂或改性催化剂优选是与烃流接触的第一催化剂。

    PROCESS FOR THE TREATMENT OF LIGHT NAPHTHA HYDROCARBON STREAMS
    6.
    发明申请
    PROCESS FOR THE TREATMENT OF LIGHT NAPHTHA HYDROCARBON STREAMS 审中-公开
    用于处理轻质石墨烃流程的方法

    公开(公告)号:WO2004041971A1

    公开(公告)日:2004-05-21

    申请号:PCT/US2003/029107

    申请日:2003-09-16

    CPC classification number: C10G45/02 C10G2400/02

    Abstract: A light cracked naphtha is treated to convert mercaptans to sulfides and saturate dienes and then subjected to destructive hydrodesulfurization (HDS) to convert the organic sulfur compounds to hydrogen sulfide. The recombinant mercaptans formed by reaction of hydrogen sulfide and olefins at the outlet of the HDS are generally heavier than the light cracked naphtha is fractionated in admixture with a heavy cracked naphtha. A low sulfur content light cracked naphtha is produced as an overheads and the major portion of the mercaptans leave with heavy cracked naphtha as bottoms. It also advantageous to pass the heavy cracked naphtha through the HDS in admixture with the light cracked naphtha, since the recombinant mercaptans formed with the heavy cracked naphtha olefins (which displace some of the lower mercaptans which would form the light cracked naphtha olefins) will be even higher boiling and easier to separate by fractionation.

    Abstract translation: 处理轻质裂解石脑油,将硫醇转化为硫化物,饱和二烯,然后进行破坏性加氢脱硫(HDS),将有机硫化合物转化成硫化氢。 在HDS出口处通过硫化氢和烯烃的反应形成的重组硫醇通常比轻质裂化石脑油与重质裂解石脑油混合分馏更重。 产生低硫含量的轻质裂化石脑油作为塔顶馏出物,硫醇的主要部分以重的裂解石脑油为底部。 由于与重质裂解石脑油烯烃(其将形成轻质裂化石脑油烯烃的一部分低级硫醇取代)形成的重组硫醇将是重要的硫醇与轻质裂化石脑油混合,所以将重质裂解石脑油与HDS混合也是有利的 甚至更高沸点,更容易通过分馏分离。

    PROCESS FOR SULFUR REDUCTION IN NAPHTHA STREAMS
    7.
    发明申请
    PROCESS FOR SULFUR REDUCTION IN NAPHTHA STREAMS 审中-公开
    在硫酸盐流中减少硫的方法

    公开(公告)号:WO2003050207A1

    公开(公告)日:2003-06-19

    申请号:PCT/US2002/035294

    申请日:2002-12-02

    CPC classification number: C10G67/16 C10G19/02 C10G45/02 C10G65/04 C10G2400/02

    Abstract: A process for fractionating and treating of a full range naphtha stream. The full boiling range naphtha stream is first split into a light boiling range naphta, an intermediate boiling range naphtha and a heavy boiling range naphtha. The bottoms are subjected to hydrodesulfurization and the effluent combined with the intermediate boiling range naphtha containing thiophene and thiophene and thiophene mercaptans and subjected to a second hydrodesulfurization. The effluent from the polishing reactor may be combined with the light boiling range naphtha to produce a new full boiling range naphtha containing substantially less total sulfur than the original feed. The mercaptans in the light naphtha may be removed by thioetherification prior to splitting or by wet caustic wash afterwards. The object being to meet higher standards for sulfur removal, by treating the components of the naphta feed with the process that preserves the olefinic while most expediently removing the sulfur compounds.

    Abstract translation: 一种用于分馏和处理全程石脑油流的方法。 全沸点石脑油流首先分为轻沸点萘,中沸程石脑油和重沸石石脑油。 对塔底物进行加氢脱硫,并将流出物与含有噻吩和噻吩和噻吩硫醇的中沸程石脑油混合并进行第二次加氢脱硫。 来自抛光反应器的流出物可以与轻沸点石脑油组合以产生新的全沸点石脑油,其中含有比原始进料更少的总硫。 轻石脑油中的硫醇可以在分裂之前通过硫醚化除去,或者之后通过湿碱洗涤除去。 目的是为了达到更高的硫去除标准,通过用保留烯烃的方法处理含氮原料的组分,同时最方便地除去硫化合物。

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