A HIGH ACTIVITY AND HIGH STABILITY IRON OXIDE BASED DEHYDROGENATION CATALYST HAVING A LOW CONCENTRATION OF TITANIUM AND THE MANUFACTURE AND USE THEREOF
    6.
    发明申请
    A HIGH ACTIVITY AND HIGH STABILITY IRON OXIDE BASED DEHYDROGENATION CATALYST HAVING A LOW CONCENTRATION OF TITANIUM AND THE MANUFACTURE AND USE THEREOF 审中-公开
    高活性和高稳定性氧化铁基脱氢催化剂,其具有低浓度的钛及其制造及其用途

    公开(公告)号:WO2006055712A1

    公开(公告)日:2006-05-26

    申请号:PCT/US2005/041685

    申请日:2005-11-16

    摘要: A high activity and high stability dehydrogenation catalyst, its manufacture and its use. The catalyst comprises an iron oxide component having a low titanium content, wherein the iron oxide component is made by the heat-treating of a yellow iron oxide precipitate made by precipitating from a solution of an iron salt the yellow iron oxide precipitate and, optionally, an additional dehydrogenation catalytic component, wherein the iron oxide based dehydrogenation catalyst composition has a low concentration of titanium. The low titanium containing iron oxide based dehydrogenation catalyst is used in the dehydrogenation of dehydrogenatable hydrocarbons.

    摘要翻译: 高活性和高稳定性的脱氢催化剂,其制造及其应用。 催化剂包含具有低钛含量的氧化铁组分,其中氧化铁组分通过热处理黄铁氧化物沉淀物而制成,所述沉淀物是由铁盐溶液沉淀出来的黄色氧化铁沉淀物,以及任选地, 另外的脱氢催化组分,其中氧化铁基脱氢催化剂组合物具有低浓度的钛。 低含钛的氧化铁基脱氢催化剂用于脱氢烃的脱氢。

    A METHOD OF OPERATING A DEHYDROGENATION REACTOR SYSTEM
    7.
    发明申请
    A METHOD OF OPERATING A DEHYDROGENATION REACTOR SYSTEM 审中-公开
    一种脱氢反应器系统的运行方法

    公开(公告)号:WO2005037738A1

    公开(公告)日:2005-04-28

    申请号:PCT/US2004/033614

    申请日:2004-10-12

    IPC分类号: C07C5/333

    摘要: Described is a method for operating and shutting down a dehydrogenation reactor that contains a volume of dehydrogenation catalyst. After termination of the introduction of a dehydrogenation feed into the dehydrogenation reactor that is operated under dehydrogenation reaction conditions, a first cooling fluid comprising steam is introduced into the reactor for a first time period sufficient to cool the dehydrogenation catalyst contained in the dehydrogenation reactor to a second temperature. The introduction of the first cooling fluid is terminated followed by the introduction of a second cooling fluid for a second time period sufficient to cool the dehydrogenation catalyst contained in the dehydrogenation reactor to a third temperature that allows for the handling and removal of the dehydrogenation catalyst from the dehydrogenation reactor.

    摘要翻译: 描述了一种用于操作和关闭含有一定体积的脱氢催化剂的脱氢反应器的方法。 在脱氢反应器引入脱氢反应器终止之后,在脱氢反应条件下运行的脱氢反应器中,将包含蒸汽的第一冷却流体引入反应器中第一次足以将脱氢反应器中所含的脱氢催化剂冷却至 第二温度。 第一冷却流体的引入被终止,然后引入第二冷却流体第二时间段,足以将脱氢反应器中所含的脱氢催化剂冷却至允许将脱氢催化剂从 脱氢反应器。

    AN OLEFIN EPOXIDATION PROCESS AND A CATALYST FOR USE IN THE PROCESS
    8.
    发明申请
    AN OLEFIN EPOXIDATION PROCESS AND A CATALYST FOR USE IN THE PROCESS 审中-公开
    一种烯烃环氧化方法和一种用于该方法的催化剂

    公开(公告)号:WO2004089537A2

    公开(公告)日:2004-10-21

    申请号:PCT/US2004/009883

    申请日:2004-03-30

    IPC分类号: B01J23/50

    摘要: A process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin, oxygen and an organic halide, in the presence of a catalyst comprising silver and rhenium deposited on a carrier, wherein the catalyst comprises rhenium in a quantity of at most 1.5 mmole/kg, relative to the weight of the catalyst, and at most 0.0015 mmole/m 2 , relative to the surface area of the carrier, and in which process the reaction temperature is increased to at least partly reduce the effect of loss of activity of the catalyst while the organic halide is present in a relative quantity Q which is maintained constant, which relative quantity Q is the ratio of an effective molar quantity of active halogen species present in the feed to an effective molar quantity of hydrocarbons present in the feed.

    摘要翻译: 一种烯烃环氧化方法,该方法包括使包含烯烃,氧和有机卤化物的进料在包含银和沉积在载体上的铼的催化剂存在下反应,其中所述 催化剂相对于载体的表面积包含相对于催化剂重量至多1.5mmol / kg和至多0.0015mmol / m 2的铼,并且其中 过程中,提高反应温度以至少部分降低催化剂活性损失的影响,同时有机卤化物以保持恒定的相对量Q存在,该相对量Q是活性有效摩尔量 在进料中存在的卤素物质达到进料中存在的有效摩尔量的烃。