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    • 6. 发明授权
    • Gas-phase polymerization of alpha-olefin
    • α-烯烃的气相聚合
    • US08058368B1
    • 2011-11-15
    • US13090973
    • 2011-04-20
    • Sung Woo KangNam Kyu KimYoung Jae JunMan Jung KimKil Su Kim
    • Sung Woo KangNam Kyu KimYoung Jae JunMan Jung KimKil Su Kim
    • C08F2/00C08F210/00C08G85/00B01J8/18
    • B01J8/44B01J8/1827B01J8/1854B01J8/1863B01J2208/00274B01J2208/0092B01J2208/00929C08F210/16C08F2/34C08F210/14C08F2500/07C08F2500/18C08F2500/08
    • A method for preparing polyolefin from alpha-olefin with high productivity using an internal circulating fluidized bed polymerization reactor is disclosed. The method for gas-phase polymerization of alpha-olefin comprising the steps of: supplying circulation gas including one or more alpha-olefins and inert gas into a polymerization reactor; polymerizing the alpha-olefin to polyolefin in two separated polymerization areas in the polymerization reactor; and discharging produced polyolefin from the polymerization reactor. The polymerization reactor is divided into the two polymerization areas by a draft tube, and an inside of the draft tube forms a riser where growing polyolefin polymers move up in fast fluidization, and an outside of the draft tube forms an annulus where the polyolefin polymers passing the riser move down by gravity, and the polyolefin polymers passing the annulus are introduced to a lower part of the riser again, so that the polyolefin polymers are polymerized during circulating between the riser and the annulus.
    • 公开了一种使用内部循环流化床聚合反应器以高生产率从α-烯烃制备聚烯烃的方法。 包括以下步骤的α-烯烃气相聚合方法:将包括一种或多种α-烯烃和惰性气体的循环气体供应到聚合反应器中; 在聚合反应器中的两个分离的聚合区域中将α-烯烃聚合成聚烯烃; 并从聚合反应器中排出生产的聚烯烃。 聚合反应器通过引流管分成两个聚合区域,引流管的内部形成提升管,其中生长的聚烯烃聚合物在快速流化中向上移动,并且引流管的外部形成环状物,其中聚烯烃聚合物通过 立管通过重力向下移动,并且通过环的聚烯烃聚合物再次被引入提升管的下部,使得聚烯烃聚合物在提升管和环之间循环期间聚合。
    • 8. 发明申请
    • Reactor cooler
    • 反应堆冷却器
    • US20090163756A1
    • 2009-06-25
    • US12002814
    • 2007-12-19
    • Peter R. Pujado
    • Peter R. Pujado
    • C07C1/00B01J19/00F28D15/00
    • B01J8/1854B01J8/1836B01J2208/00132C07C1/20C10G2400/20F28D7/06F28D13/00C07C11/02
    • A reactor for converting a feedstream having one or more oxygenated compounds to a product containing olefins is provided. The reactor comprises a fluidized reaction zone defined by a reactor wall and a feedstream inlet located adjacent the reaction zone. The feedstream inlet is operative to feed the reaction zone with said feedstream. A riser extends from said reaction zone and carries a vaporized combination of said feedstream and said catalyst from said reaction zone to a disengaging zone fed by the riser. At least one cooling tube is disposed within the reactor and extends substantially vertically and substantially parallel to the reactor wall. The cooling tube is located adjacent the reactor wall and extends from an upper portion of the reaction zone towards a lower portion of the reaction zone. Also provided is a cooling system for a methanol to olefin reactor. Finally, a method of producing olefins from a feedstream having an oxygenate is provided. The method includes cooling the reaction which produces olefins from the oxygenate feedstream.
    • 提供了一种用于将具有一种或多种含氧化合物的进料流转化为含有烯烃的产物的反应器。 反应器包括由反应器壁和邻近反应区定位的进料流入口限定的流化反应区。 进料流入口可操作以与所述原料流一起进料反应区。 提升管从所述反应区延伸并将所述进料流和所述催化剂的蒸发组合从所述反应区运送到由提升管供给的分离区。 至少一个冷却管设置在反应器内并基本上垂直且基本平行于反应器壁延伸。 冷却管位于反应器壁附近并且从反应区的上部朝向反应区的下部延伸。 还提供了用于甲醇至烯烃反应器的冷却系统。 最后,提供了从具有含氧化合物的原料流生产烯烃的方法。 该方法包括冷却从含氧物进料流产生烯烃的反应。