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    • 2. 发明授权
    • Apparatuses and methods for separating butene-1 from a mixed C4 feed
    • 从混合C4进料中分离丁烯-1的装置和方法
    • US07528290B2
    • 2009-05-05
    • US11617069
    • 2006-12-28
    • Joseph E. ZimmermannDennis E. O'Brien
    • Joseph E. ZimmermannDennis E. O'Brien
    • C07C7/00B01D3/14
    • B01D3/32B01D1/007B01D3/14B01D3/141C07C7/04C07C11/08
    • A process is disclosed for recovering 1-butene from a feed steam comprising n-butane, isobutane and butene isomers using a single, divided wall distillation column. The disclosed process includes introducing the feed steam into an inlet of a first side of a distillation column, wherein the distillation column comprises a top, a bottom and a center dividing wall extending between the bottom and the top of the column and dividing the column into the first side and a second side. The process includes taking off an isobutane stream from the top of the second side of column, taking off a 1-butene stream as a bottoms stream from the second side of the column, and taking off a combination 2-butene and n-butane stream as a bottom stream from the first side of column.
    • 公开了一种用于使用单分隔壁蒸馏塔从包含正丁烷,异丁烷和丁烯异构体的进料蒸汽中回收1-丁烯的方法。 所公开的方法包括将进料蒸汽引入蒸馏塔的第一侧的入口,其中蒸馏塔包括在塔的底部和顶部之间延伸的顶部,底部和中心分隔壁,并将塔分成 第一面和第二面。 该方法包括从塔的第二侧的顶部除去异丁烷料流,从塔的第二侧排出作为塔底物流的1-丁烯物流,并取出2-丁烯和正丁烷流的组合 作为从塔的第一侧的底部流。
    • 6. 发明授权
    • Process for increasing the yield and selectivity of a dehydrogenation process using side-by-side reaction zones
    • 使用并排反应区提高脱氢工艺的产率和选择性的方法
    • US06472577B1
    • 2002-10-29
    • US09458854
    • 1999-12-10
    • Joseph E. ZimmermannPaul R. CottrellMichael J. Vetter
    • Joseph E. ZimmermannPaul R. CottrellMichael J. Vetter
    • C07C5333
    • C07C5/321
    • A method increases the feed throughput for a process of dehydrogenating light hydrocarbons without loss of conversion or selectivity by increasing the catalyst volume in only the final reactor of at least three reaction zones. The catalyst volume of the final reactor may be increased relative to the other reactors by extending the inner and outer screens that define a radial flow bed therein. Maintaining a low LHSV by increasing the catalyst volume in only the final reactor greatly reduces the expense of improving the capacity and yield of such a process. This method provides the most benefit to moving bed reactor systems since modifications are limited to the last reactor. A further benefit is derived from the simplified method of raising only a section of the last reactor to increase the catalyst volume.
    • 一种方法通过仅在至少三个反应区的最终反应器中增加催化剂体积来增加轻烃脱氢过程而不损失转化率或选择性的进料通量。 最终反应器的催化剂体积可以相对于其它反应器通过在其中限定径向流动床的内部和外部筛网延伸来增加。 通过仅在最终反应器中增加催化剂体积来维持低的LHSV大大降低了提高这种方法的能力和产率的费用。 这种方法为移动床反应器系统提供了最大的益处,因为修改限于最后一个反应器。 进一步的益处来自于仅提高最后一个反应器的一部分以增加催化剂体积的简化方法。
    • 8. 发明授权
    • Etherification with skeletal olefin isomerization
    • 醚化与骨架烯烃异构化
    • US5283373A
    • 1994-02-01
    • US997461
    • 1992-12-28
    • Charles P. LuebkeBipin V. VoraDavid A. WegererJoseph E. Zimmermann
    • Charles P. LuebkeBipin V. VoraDavid A. WegererJoseph E. Zimmermann
    • B01D3/00C07C41/06C07C41/42C07C5/22
    • B01D3/009C07C41/06C07C41/42Y02P20/127
    • A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses a separation zone that receives an effluent stream from the etherification reaction zone and separates it into a high boiling stream, a low boiling stream and an intermediate boiling stream in order to reduce the mass flow of reactants through the isomerization and etherification reaction zones. The separation zone includes at least one distillation column. The distillation column can provide a distillation function only, or can also provide a reactive distillation zone. The intermediate boiling stream leaves a two column separation zone as a bottoms stream from a second column or in a single column separation zone as a sidecut which in the case of reactive distillation is taken from the point above a bed of catalyst within the column. Taking the sidecut stream substantially eliminates the circulation of isoalkane hydrocarbons through the etherification and isomerization zone and maintains normal alkanes at an acceptable equilibrium level. The effluent from the isomerization zone may enter the first in a series of etherification zones or may enter a second etherification zone having higher capacity.
    • 醚化方法和将线性烯烃异构化成异烯烃的方法的组合使用分离区,其接收来自醚化反应区的流出物流,并将其分离成高沸点流,低沸点流和中间沸腾流 以减少反应物通过异构化和醚化反应区的质量流动。 分离区包括至少一个蒸馏塔。 蒸馏塔只能提供蒸馏功能,也可以提供反应蒸馏区。 中间沸腾物流作为来自第二塔或单塔分离区的塔底物流离开两塔分离区,作为反应蒸馏的情况,其从塔内的催化剂床上方取出。 采取旁路基本上消除了通过醚化和异构化区域的异烷烃的循环,并将正常烷烃保持在可接受的平衡水平。 来自异构化区的流出物可以在一系列醚化区中进入第一个或者可以进入具有较高容量的第二醚化区。