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    • 23. 发明授权
    • Etherification with intermediate skeletal olefin isomerization
    • 醚化与中间骨架烯烃异构化
    • US5276212A
    • 1994-01-04
    • US998174
    • 1992-12-29
    • Charles P. LuebkeJoseph E. Zimmermann
    • Charles P. LuebkeJoseph E. Zimmermann
    • C07C41/06C07C5/22
    • C07C41/06C07C41/42Y02P20/127Y02P20/582
    • A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses a first etherification zone that passes an etherification effluent and an etherification recycle stream through a skeletal isomerization separation zone to prepare an etherification feed for an additional etherification reactor. Etherification of additional isoalkane reactants in a separate etherification zone permits the production of additional ether products through isomerization without requiring additional etherification capacity upstream of the isomerization zone. Therefore additional etherification capacity can be added without significant changes to existing etherification capacity. The additional etherification zone may be in the form of a reactive distillation reactor that provides a high boiling ether product stream, a low boiling isoalkane vent stream and an intermediate boiling normal butene sidecut stream.
    • 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第一醚化区,其使醚化流出物和醚化循环流通过骨架异构化分离区,以制备另外的醚化反应器的醚化进料。 另外的异烷烃反应物在单独的醚化区中的醚化允许通过异构化产生另外的醚产物,而不需要在异构化区上游额外的醚化能力。 因此,可以添加额外的醚化能力,而不会对现有的醚化能力产生显着变化。 附加的醚化区可以是反应蒸馏反应器的形式,其提供高沸点醚产物流,低沸点异烷烃排放流和中间沸腾正丁烯顺流。
    • 24. 发明授权
    • Etherification with skeletal olefin isomerization
    • 醚化与骨架烯烃异构化
    • US5210327A
    • 1993-05-11
    • US883636
    • 1992-05-15
    • Charles P. LuebkeBipin V. VoraDavid A. WegererJoseph E. ZimmermannKevin C. Buck
    • Charles P. LuebkeBipin V. VoraDavid A. WegererJoseph E. ZimmermannKevin C. Buck
    • B01D3/00C07C41/06C07C41/42
    • 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 normally has an arrangement of a distillation column. The distillation column can provide a distillation function only, or can also provide a reactive distillation zone. The intermediate boiling stream typically leaves the column 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.
    • 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。 分离区通常具有蒸馏塔的排列。 蒸馏塔只能提供蒸馏功能,也可以提供反应蒸馏区。 中间沸腾流通常作为旁路离开塔,在反应蒸馏的情况下取自塔内催化剂床上方的点。 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。