C4 rejection for etherification and isomerization process
    1.
    发明授权
    C4 rejection for etherification and isomerization process 失效
    C4排除醚化和异构化过程

    公开(公告)号:US5300696A

    公开(公告)日:1994-04-05

    申请号:US998177

    申请日:1992-12-29

    IPC分类号: C07C41/06 C07C5/22

    CPC分类号: C07C41/06

    摘要: A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses an adsorptive separation zone that receives an effluent fraction from the etherification reaction zone and separates the fraction at low efficiency to produce an isomerization feed stream comprising normal butenes and butanes, and a butane stream that is rejected from the process. The rejection of butanes at low efficiency reduces or eliminates the loss of butenes with the rejection of butane. A low efficiency adsorptive separation to reject butanes also benefits the isomerization process by inhibiting coking.

    摘要翻译: 醚化方法和将线性烯烃异构化为异烯烃的方法的组合使用吸附分离区,其接收来自醚化反应区的流出物部分并以低效率分离馏分以产生包含正丁烯和丁烷的异构化进料流 ,以及从流程中拒绝的丁烷流。 以低效率排斥丁烷可以降低或消除丁烷的排斥与丁烷的排斥。 抑制焦炭的低效吸附分离也有利于异构化过程。

    Production of reformulated gasoline
    2.
    发明授权
    Production of reformulated gasoline 失效
    生产重整汽油

    公开(公告)号:US5135639A

    公开(公告)日:1992-08-04

    申请号:US528403

    申请日:1990-05-24

    IPC分类号: C10G59/02 C10L1/06

    CPC分类号: C10L1/06 C10G59/02

    摘要: A process combination is disclosed to reduce the aromatics content of a key component of gasoline blends. Paraffins contained in catalytic reformates are conserved and upgraded by separation and isomerization, reducing the reforming severity required to achieve a given product octane with concomitant reduction in paraffin aromatization and cracking. Light reformate may be separated and isomerized, and heavier paraffins are separated from the reformate by solvent extraction or adsorption and isomerized. A gasoline component having a reduced aromatics content relative to reformate of the same octane number is blended from the net products of the separation and isomerization steps.

    摘要翻译: 公开了一种方法组合以降低汽油混合物的关键组分的芳族化合物含量。 包含在催化重整产物中的石蜡通过分离和异构化被保存和升级,降低了获得给定产物辛烷值同时降低链烷烃芳构化和开裂所需的重整严重性。 轻质重整物可以分离和异构化,并且较重的链烷烃通过溶剂萃取或吸附与重整产物分离并异构化。 从分离和异构化步骤的净产物中混合相对于相同辛烷值的重整产物具有降低的芳族化合物含量的汽油组分。

    Static mixing reactor for uniform reactant temperatures and concentrations
    4.
    发明授权
    Static mixing reactor for uniform reactant temperatures and concentrations 失效
    静态混合反应器,用于均匀的反应物温度和浓度

    公开(公告)号:US06334985B1

    公开(公告)日:2002-01-01

    申请号:US09135682

    申请日:1998-08-18

    IPC分类号: F28D300

    摘要: A tubular reactor passes a flowing stream of reactants through a plurality of mixing devices that simultaneously provide indirect heat exchange of the reactants to improve the uniformity of reactant temperatures and concentrations. The mixing devices provide intimate mixing by passing the reactants through a plurality of narrow channels defined by parallel plate elements that channel a heat exchange fluid on their opposite side to provide the simultaneous indirect heat exchange. The heat exchange channels can have any desired degree of mixing intensity by providing irregularities in the channel walls or flow path that supply the desired degree of fluid shear. Preferably the mixing reactor provides a series of mixing devices with heat exchange along the length of the conduit flow path with space between the devices for remixing of the fluid reactants.

    摘要翻译: 管式反应器通过多个混合装置使反应物流动流同时提供反应物的间接热交换以提高反应物温度和浓度的均匀性。 混合装置通过使反应物通过由平行板元件限定的多个窄通道提供紧密混合,所述窄通道在其相对侧上引导热交换流体以提供同时的间接热交换。 通过在通道壁或提供期望程度的流体剪切的流动路径上提供不规则性,热交换通道可以具有任何期望的混合强度。 优选地,混合反应器提供一系列混合装置,沿着管道流动路径的长度进行热交换,在装置之间具有空间,用于再混合流体反应物。

    Production of reformulated gasoline
    5.
    发明授权
    Production of reformulated gasoline 失效
    生产重整汽油

    公开(公告)号:US5294328A

    公开(公告)日:1994-03-15

    申请号:US922935

    申请日:1992-07-31

    IPC分类号: C10G59/02 C10L1/06 C10G37/10

    CPC分类号: C10G59/02 C10L1/06

    摘要: A process combination is disclosed to reduce the aromatics content of a key component of gasoline blends. Paraffins contained in catalytic reformates are conserved and upgraded by separation and isomerization, reducing the reforming severity required to achieve a given product octane with concomitant reduction in paraffin aromatization and cracking. Light reformate may be separated and isomerized, and heavier paraffins are separated from the reformate by solvent extraction or adsorption; the recovered heavy paraffins are isomerized, optionally at a substoichiometric hydrogen ratio. A gasoline component having a reduced aromatics content relative to reformate of the same octane number is blended from the net products of the separation and isomerization steps.

    摘要翻译: 公开了一种方法组合以降低汽油混合物的关键组分的芳族化合物含量。 包含在催化重整产物中的石蜡通过分离和异构化被保存和升级,降低了获得给定产物辛烷值同时降低链烷烃芳构化和开裂所需的重整严重性。 轻质重整油可以分离和异构化,并且较重的链烷烃通过溶剂萃取或吸附与重整油分离; 回收的重链烷烃异构化,任选地以亚化学计量比的氢气比。 从分离和异构化步骤的净产物中混合相对于相同辛烷值的重整产物具有降低的芳族化合物含量的汽油组分。

    N-paraffin purification process with removal of aromatics
    7.
    发明授权
    N-paraffin purification process with removal of aromatics 失效
    N-烷烃纯化工艺除去芳烃

    公开(公告)号:US5510564A

    公开(公告)日:1996-04-23

    申请号:US354192

    申请日:1994-12-12

    IPC分类号: C10G53/08 C07C7/12 C07C7/00

    CPC分类号: C10G53/08

    摘要: An integrated process for the production of normal paraffins from a feed mixture of normal paraffins, iso-paraffins and aromatics is disclosed. The process integrates a normal paraffin sorption process and an aromatics sorption process. The normal paraffin product of the process of our invention meets the commercial requirements for production of detergents, including sufficiently-low concentrations of both iso-paraffins and aromatics. The process achieves these results without the need for two additional factionation columns that are necessary to prior unintegrated processes.

    摘要翻译: 公开了从正链烷烃,异链烷烃和芳族化合物的进料混合物生产正链烷烃的综合方法。 该方法整合了正常的石蜡吸附过程和芳烃吸附过程。 我们发明方法的正常石蜡产品符合生产洗涤剂的商业要求,包括足够低浓度的异链烷烃和芳族化合物。 该过程实现了这些结果,而不需要对先前未整合过程所必需的两个附加派系列。

    Process for paraffin isomerization with liquid phase adsorptive product
separation
    8.
    发明授权
    Process for paraffin isomerization with liquid phase adsorptive product separation 失效
    用液相吸附产物分离石蜡异构化方法

    公开(公告)号:US5026951A

    公开(公告)日:1991-06-25

    申请号:US462262

    申请日:1990-01-09

    IPC分类号: C07C5/27 C07C9/00

    CPC分类号: C07C9/00 C07C5/2791

    摘要: A combination isomerization and liquid phase adsorptive separation process is given increased efficiency and cost effectiveness by the elimination of a column for the separation of desorbent material from selectively retained components. By decreasing the ratio of normal paraffin desorbent to the selective pore volume circulation rate, the extract column can be eliminated without providing other means for the rejection or recovery of desorbent material. This reduction in the ratio of normal paraffin desorbent to selective pore volume circulation rate has been found not to decrease the recovery from the adsorption section. The elimination of the column provides a substantial decrease in the cost of the equipment to operate a combination isomerization zone and liquid phase adsorption section. In an alternate arrangement, the extract column is replaced with a deisohexanizer column. The deisohexanizer column can be used to produce a C.sub.5 -C.sub.6 product stream having research octane numbers of 93 or greater.

    摘要翻译: 组合异构化和液相吸附分离方法通过消除用于将解吸剂材料与选择性保留的组分分离的柱来提高效率和成本效益。 通过降低正常石蜡脱附剂与选择孔体积循环速率的比例,可以消除萃取柱而不提供用于排除或回收解吸材料的其它方法。 发现正常石蜡脱附剂与选择性孔体积循环速率之比的这种降低不会降低吸附段的回收率。 柱的消除大大降低了操作组合异构化区和液相吸附段的设备的成本。 在替代布置中,萃取柱用脱乙酸酯柱代替。 脱甲基塔可用于生产具有研究辛烷值为93或更高的C5-C6产物流。