Tailored Fischer-Tropsch synthesis product distribution
    9.
    发明申请
    Tailored Fischer-Tropsch synthesis product distribution 审中-公开
    定制费托合成产品分销

    公开(公告)号:US20050203195A1

    公开(公告)日:2005-09-15

    申请号:US10911976

    申请日:2004-08-04

    IPC分类号: C07C27/06 C07C27/26

    摘要: Novel methods of Fischer-Tropsch synthesis are described. It has been discovered that conducting the Fischer-Tropsch synthesis over a catalyst with a catalytically active surface layer of 35 microns or less results in a liquid hydrocarbon product with a high ratio of C5-C20:C20+. Descriptions of novel Fischer-Tropsch catalysts and reactors are also provided. Novel hydrocarbon compositions with a high ratio of C5-C20:C20+ are also described.

    摘要翻译: 描述了费 - 托合成的新方法。 已经发现,在具有35微米或更小的催化活性表面层的催化剂上进行费 - 托合成导致具有高比率C 5 -C 3 - 20 :C 20 + +。 还提供了新型费 - 托催化剂和反应器的描述。 还描述了具有高比例的C 5 -C 20 -C 20 O +的新型烃组合物。

    Low-power digital-to-analog converter
    10.
    发明授权
    Low-power digital-to-analog converter 有权
    低功耗数模转换器

    公开(公告)号:US08384573B2

    公开(公告)日:2013-02-26

    申请号:US12122368

    申请日:2008-05-16

    IPC分类号: H03M3/00

    CPC分类号: H03M3/504 H03F3/2175

    摘要: A digital-to-analog converter (DAC) with a digital segment having a digital data input and an analog segment coupled to the digital segment and having an analog output to output an analog signal corresponding to the digital data. The analog segment includes one or more gain stages and a feedback structure to couple the analog output to the one or more gain stages to attenuate signal distortion at the analog output. A combined gain of the one or more gain stages determines a signal distortion attenuation characteristic of the analog segment.

    摘要翻译: 具有数字分段的数模转换器(DAC)具有数字数据输入和耦合到数字段的模拟分段并且具有模拟输出以输出对应于数字数据的模拟信号。 模拟段包括一个或多个增益级和用于将模拟输出耦合到一个或多个增益级的反馈结构,以衰减模拟输出处的信号失真。 一个或多个增益级的组合增益确定模拟段的信号失真衰减特性。