Catalytic reforming process
    22.
    发明授权
    Catalytic reforming process 失效
    催化重整过程

    公开(公告)号:US4415435A

    公开(公告)日:1983-11-15

    申请号:US422675

    申请日:1982-09-24

    Inventor: William E. Lewis

    CPC classification number: C10G35/09 C10G69/08

    Abstract: A process for the optomization of the amount of sulfur introduced into a cyclic, or semi-cyclic reforming unit consistant with the dual objective of sulfiding a sulfur-sensitive polymetallic platinum catalyst, and minimizing the average sulfur present in the unit during an operating cycle. In accordance with such process, a sulfur-containing naphtha feed between reactor swings is first hydrofined to reduce the sulfur content of the feed, the product therefrom is then passed through a guard bed or reactor and contacted with a sulfur adsorbent essentially completely remove the feed sulfur to maximize catalyst activity, catalyst stability and C.sub.5.sup.+ liquid yield. At the time of, or just prior to, swinging on-stream a reactor which contains an unsulfided fresh, or unsulfided regenerated, reactivated sulfur-sensitive polymetallic platinum catalyst, the series of reactors is by-passed around the hydrofiner and guard chamber and the product from the hydrofiner fed directly into the series of reactors to sulfide the catalyst.

    Abstract translation: 用于将引入到环状或半循环重整单元中的硫的量的光学化的方法与硫敏感多金属铂催化剂的双重目标相一致,并且在操作循环期间使存在于该单元中的平均硫最小化。 根据这种方法,首先将反应器摆动之间的含硫石脑油进料加热,以减少进料的硫含量,然后使其产物通过保护床或反应器并与硫吸附剂接触,基本上完全除去进料 硫以最大化催化剂活性,催化剂稳定性和C5 +液体产率。 在或者在之前或之前摆放包含未硫化的新鲜或未硫化的再生的再生的硫敏感多金属铂催化剂的反应器的时候,该系列反应器绕过氢化提炼机和保护室,并且 来自加氢精制剂的产物直接进料到反应器系列中以硫化催化剂。

    CoMo and NiMo catalyst stacking for renewable diesel
    23.
    发明授权
    CoMo and NiMo catalyst stacking for renewable diesel 有权
    CoMo和NiMo可再生柴油催化剂堆叠

    公开(公告)号:US09523046B2

    公开(公告)日:2016-12-20

    申请号:US14097582

    申请日:2013-12-05

    Abstract: Methods are provided herein for co-processing of biocomponent feeds as well processing of mineral feeds in a reaction system at hydrogen partial pressures of about 500 psig (3.4 MPag) or less. The methods include using stacked beds of both CoMo and NiMo catalysts. The stacked catalyst beds provided unexpectedly high catalyst activity as the input feed to a reaction system was switched between a mineral feed and a feed containing both mineral and biocomponent portions. Additionally, use of stacked catalyst beds can allow for maintenance of the activity for the catalyst system in a reaction system while still achieving a desired activity for both types of feeds.

    Abstract translation: 本文提供了用于共生处理生物组分进料的方法以及在约500psig(3.4Mag)或更低的氢分压下在反应体系中处理矿物进料。 这些方法包括使用CoMo和NiMo催化剂的堆叠床。 堆叠的催化剂床提供意想不到的高催化剂活性,因为反应体系的输入进料在矿物进料和含有矿物和生物组分部分的进料之间切换。 此外,使用堆叠的催化剂床可以维持反应体系中的催化剂体系的活性,同时仍然实现两种类型的进料所需的活性。

    Regulating memory bandwidth via CPU scheduling
    26.
    发明授权
    Regulating memory bandwidth via CPU scheduling 有权
    通过CPU调度来调节内存带宽

    公开(公告)号:US08826270B1

    公开(公告)日:2014-09-02

    申请号:US12725006

    申请日:2010-03-16

    Abstract: Technologies are described herein for regulating memory bandwidth usage in virtual machines via CPU scheduling. A virtual machine monitor (“VMM”) executing on a host computer detects excessive memory bandwidth usage by programs executing in a virtual machine on a processor of the host computer. The VMM may detect excessive memory bandwidth usage by monitoring cache-misses occurring in the processor, for example. Upon detecting excessive memory bandwidth usage, the VMM penalizes the virtual machine currently executing on the processor through the CPU-scheduling algorithm utilized to allocate processor time among the virtual machines.

    Abstract translation: 这里描述了用于通过CPU调度来调节虚拟机中的存储器带宽使用的技术。 在主计算机上执行的虚拟机监视器(“VMM”)通过在主计算机的处理器上的虚拟机中执行的程序检测到过多的存储器带宽使用。 例如,VMM可以通过监视处理器中发生的高速缓存未命中来检测过多的存储器带宽使用。 在检测到过多的存储器带宽使用时,VMM通过用于在虚拟机中分配处理器时间的CPU调度算法来惩罚当前在处理器上执行的虚拟机。

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