Production of middle distillate range hydrocarbons by light olefin
upgrading
    2.
    发明授权
    Production of middle distillate range hydrocarbons by light olefin upgrading 失效
    通过轻烯烃升级生产中间馏分烃类

    公开(公告)号:US5073351A

    公开(公告)日:1991-12-17

    申请号:US322263

    申请日:1989-03-13

    IPC分类号: F02B3/06

    CPC分类号: F02B3/06 Y10S203/06

    摘要: An oligomerization system is provided for upgrading lower olefins to distillate hydrocarbons, especially useful as high quality jet or diesel fuels. The olefinic feedstock is reacted over a shape selective acid zeolite, such as ZSM-5, to oligomerize feedstock olefins and further convert recycled hydrocarbons. Reactor effluent is fractionated to recover a light-middle distillate range product stream and to obtain gasoline and heavy hydrocarbon streams for recycle.

    摘要翻译: 提供了一种低聚体系,用于将低级烯烃升级成馏分烃,特别适用于高质量的喷气或柴油燃料。 烯烃原料在诸如ZSM-5的形状选择性酸性沸石上反应以使原料烯烃低聚并进一步转化回收的烃。 将反应器流出物分馏以回收轻 - 中馏分范围的产物流并获得用于再循环的汽油和重烃流。

    Zeolite catalysis process for conversion of diene-containing olefins to
aromatic hydrocarbons
    4.
    发明授权
    Zeolite catalysis process for conversion of diene-containing olefins to aromatic hydrocarbons 失效
    用于将含二烯烃烯烃转化为芳族烃的沸石催化方法

    公开(公告)号:US4751339A

    公开(公告)日:1988-06-14

    申请号:US6089

    申请日:1987-01-23

    IPC分类号: C07C2/00 C07C15/00 C10G29/00

    摘要: A technique for continuous conversion of diene-containing aliphatic hydrocarbon feedstock to heavier hydrocarbon products wherein the feedstock is contacted at elevated temperature under endothermic high severity reaction conditions with a fluidized bed of acidic zeolite fine catalyst particles, comprising methods and means for:maintaining the fluidized catalyst bed in a vertical reactor having a turbulent reaction zone by passing vapor upwardly through the reaction zone at a velocity greater than dense bed transition velocity to a turbulent regime and less than transport velocity for the average catalyst particle;feeding a continuous stream of feedstock into the reaction zone, said feedstream comprising sufficient C.sub.3.sup.+ alkanes to require net endothermic reaction conditions;withdrawing a portion of coked catalyst from the reaction zone, oxidatively regenerating the withdrawn catalyst, heating the catalyst substantially above process temperature in the fluidized bed reactor, and returning hot regenerated catalyst to the reaction zone at a rate to control catalyst activity and reaction temperature under conditions of reaction severity to effect feedstock conversion to an aromatics-rich hydrocarbon effluent stream; andseparating an aromatics-rich product from the fluidized bed effluent stream.Aromatics yield is increased by recovering a recycle stream comprising C.sub.5.sup.+ aliphatic hydrocarbons from the fluidized bed effluent stream for further conversion in the fluidized bed to increase aromatics product yield.

    摘要翻译: 一种用于将含二烯烃的脂族烃原料连续转化为较重烃产物的技术,其中原料在吸热高度苛刻度的反应条件下在升高的温度下与酸性沸石细催化剂颗粒的流化床接触,包括以下步骤: 催化剂床在具有湍流反应区的立式反应器中,通过使蒸气向上通过反应区,速度大于致密床转变速度至湍流状态且小于平均催化剂颗粒的输送速度; 将连续的原料流送入反应区,所述进料流包含足够的C3 +烷烃以需要净吸热反应条件; 将一部分焦化催化剂从反应区中取出,氧化再生催化剂,在流化床反应器中将催化剂加热至高于工艺温度,并将热再生催化剂返回到反应区,以控制催化剂活性和反应温度 使原料转化成富含芳烃的烃流出物流的反应条件; 以及从流化床流出物流中分离富含芳烃的产物。 通过从流化床流出物流中回收包含C5 +脂族烃的再循环料流以在流化床中进一步转化以提高芳族化合物产物产率来提高芳族化合物产率。

    Treating oxygenate containing feedstreams in the conversion of oxygenates to olefins
    7.
    发明授权
    Treating oxygenate containing feedstreams in the conversion of oxygenates to olefins 有权
    在含氧化合物转化为烯烃的过程中,处理含氧化合物的进料流

    公开(公告)号:US07385100B2

    公开(公告)日:2008-06-10

    申请号:US11787337

    申请日:2007-04-16

    IPC分类号: C07C1/00 B63B25/08

    摘要: This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream and a liquid stream. The heating is conducted so that a majority of the metalloaluminophosphate molecular sieve catalyst contaminants is contained in the liquid stream. The vapor stream is separated from the liquid stream, and the separated vapor stream is contacted with the metalloaluminophosphate molecular sieve catalyst to form olefin product. The heating of the feedstream and the separation of the vapor stream can be carried out in one or more stages.

    摘要翻译: 本发明涉及从用于含氧化合物到烯烃反应体系的含氧化合物的进料流中除去污染物。 用于将含氧化合物转化为烯烃并且含有污染物的氧化物进料被加热以形成蒸汽流和液体流。 进行加热,使得大部分金属铝磷酸盐分子筛催化剂污染物被包含在液体流中。 将蒸汽流与液体流分离,并将分离的蒸汽流与金属铝磷酸盐分子筛催化剂接触以形成烯烃产物。 进料流的加热和蒸汽流的分离可以在一个或多个阶段中进行。

    Olefin conversion catalyst regeneration
    10.
    发明授权
    Olefin conversion catalyst regeneration 失效
    烯烃转化催化剂再生

    公开(公告)号:US5405814A

    公开(公告)日:1995-04-11

    申请号:US72379

    申请日:1993-06-07

    摘要: An olefin hydration catalyst is regenerated with a non-oxidizing light gas, such as hydrogen. Light olefins, especially propylene, are converted to a mixture of alcohol(s), such as isopropanol (IPA) and ether(s), such as diisopropylether (DIPE) by contacting a feed containing the olefin with water and/or alcohol with the olefin hydration catalyst. Regeneration conditions include temperatures of from about 150.degree. C. to about 550.degree. C., pressures below about 1000 psig (6900 kPa). Lower pressures of regeneration unexpectedly demonstrated more effective catalyst regeneration through greater coke removal.

    摘要翻译: 烯烃水合催化剂用非氧化性轻质气体如氢气再生。 通过使含有烯烃的进料与水和/或醇接触,将轻质烯烃,特别是丙烯转化成醇,如异丙醇(IPA)和醚,如二异丙基醚(DIPE))的混合物, 烯烃水合催化剂。 再生条件包括约150℃至约550℃的温度,低于约1000psig(6900kPa)的压力。 更低的再生压力意外地通过更大的焦炭去除表明更有效的催化剂再生。