Process and bimetallic catalyst for C8 alkylaromatic isomerization
    3.
    发明申请
    Process and bimetallic catalyst for C8 alkylaromatic isomerization 审中-公开
    C8烷基芳族异构化的工艺和双金属催化剂

    公开(公告)号:US20050143615A1

    公开(公告)日:2005-06-30

    申请号:US10749179

    申请日:2003-12-30

    IPC分类号: C07C5/22 C07C5/27

    摘要: A process for isomerizing ethylbenzene into xylenes such as para-xylene using a bimetallic zeolitic catalyst system based on MTW-type zeolite is disclosed. Preferably the two metals are platinum and tin. The invention obtains a stable and improved yield of xylenes such as para-xylene without excess benzene production by dealkylation. The zeolitic silica-to-alumina ratio ranges from 20 to 45. Use of MTW substantially free of mordenite improves yields and integrated aromatics complex economics by reducing undesirable aromatic ring-loss reactions.

    摘要翻译: 公开了使用基于MTW型沸石的双金属沸石催化剂体系将乙苯异构化为二甲苯(如对二甲苯)的方法。 优选地,两种金属是铂和锡。 本发明通过脱烷基化获得稳定且提高的二甲苯产率,如对二甲苯,而不产生过量的苯。 沸石二氧化硅与氧化铝的比例范围为20至45.使用基本上不含丝光沸石的MTW通过减少不期望的芳族环损失反应来提高产率和综合芳族化合物复合经济性。

    Energy delivery apparatus and method
    10.
    发明授权
    Energy delivery apparatus and method 有权
    能量输送装置及方法

    公开(公告)号:US08301245B2

    公开(公告)日:2012-10-30

    申请号:US12692809

    申请日:2010-01-25

    IPC分类号: A61N1/00

    摘要: There is provided an energy delivery device comprising a storage device, a discharge circuit and a disarm circuit. The discharge circuit comprises a switch electrically connected to the storage device, and is selectively operable to deliver energy from the storage device to a load, e.g., a patient needing defibrillation, preferably in a multiphasic waveform. The disarm circuit comprises the switch. Preferably, the discharge circuit comprises an H-bridge circuit. There are also provided delivery devices: which comprise a shoot-through elimination circuit; which include housing elements which, when assembled, cause electrical connection between respective components; which include a housing having a small volume and an energy storage device having a large capacitance; which comprise a shunt circuit which, when activated, prevents switching of a switch. There are also provided methods of assembly and disassembly of an energy delivery unit and methods of delivering energy to a load.

    摘要翻译: 提供了一种包括存储装置,放电电路和撤防电路的能量输送装置。 放电电路包括电连接到存储装置的开关,并且可选择性地操作以将能量从存储装置传送到负载,例如需要除颤的患者,优选地在多相波形中。 撤防电路包括开关。 优选地,放电电路包括H桥电路。 还提供了传送设备:其包括直通消除电路; 其包括当组装时在相应部件之间引起电连接的壳体元件; 其包括具有小体积的壳体和具有大电容的能量存储装置; 其包括分流电路,其在被激活时防止开关的切换。 还提供了能量输送单元的组装和拆卸方法以及向能量传递能量的方法。