PROCESSING OF GASIFICATION TARS TO HIGH YIELDS OF BTX

    公开(公告)号:US20170355911A1

    公开(公告)日:2017-12-14

    申请号:US15621596

    申请日:2017-06-13

    Abstract: Embodiments relate generally to systems and method for processing tars to produce benzene, toluene, and xylene (BTX). A method for processing tars may comprise distilling the tars to separate creosotes and pitch; and processing the pitch via hydropyrolysis, including both hydrogenation and hydrocracking functions, to remove heteroatoms and break down polyaromatics in the pitch and produce monoaromatics, such as BTX. A system for processing tars may comprise one or more of the following: an input stream comprising tars feeding into a column; the column configured to separate the tars into one or more creosote streams and a pitch stream; and a reactor (or a series of reactors, or beds within a single reactor), wherein the pitch stream is fed to the reactor along with a stream of hydrogen, wherein the reactor is configured to break down the pitch to produce BTX.

    FSW TOOL WITH GRADUATED COMPOSITION CHANGE
    127.
    发明申请
    FSW TOOL WITH GRADUATED COMPOSITION CHANGE 审中-公开
    FSW工具与研究组合变化

    公开(公告)号:US20160332252A1

    公开(公告)日:2016-11-17

    申请号:US15218828

    申请日:2016-07-25

    Abstract: A friction stir welding (FSW) tool tip is described. The tool tip comprises a pin portion and a body portion that meet to form a shoulder. The tool tip has a graduated change in composition along its length. In some embodiments, the alloy composition near the end of the pin differs from the alloy composition of the body by at least 0.5% by wt of at least one element. A method of manufacturing a FSW tool tip having a gradual compositional change is also described.

    Abstract translation: 描述了摩擦搅拌焊接(FSW)工具尖端。 工具尖端包括一个销部分和一个主体部分,该部分相互相交以形成一个肩部。 工具尖端沿其长度具有渐变的组成变化。 在一些实施方案中,靠近销的端部的合金组成不同于本体的合金组成至少0.5重量%的至少一个元素。 还描述了具有逐渐组成变化的FSW工具尖端的制造方法。

    Flexible NGL recovery methods and configurations
    129.
    发明授权
    Flexible NGL recovery methods and configurations 有权
    灵活的NGL恢复方法和配置

    公开(公告)号:US09423175B2

    公开(公告)日:2016-08-23

    申请号:US14210061

    申请日:2014-03-13

    Inventor: John Mak

    Abstract: A natural gas liquids plant uses a demethanizer and a deethanizer in a two-column or single column configuration that can be used for ethane recovery and ethane rejection. During ethane recovery, 95% ethane recovery and 99% propane recovery are achieved, while during ethane rejection the sales gas Wobbe Index requirement is maintained while maintaining 95% propane recovery. A residue gas recycle exchanger is most preferably configured to use the demethanizer overhead product to either cool a portion of the residue gas and a portion of the feed gas during ethane recovery, or to cool a portion of the feed gas using two distinct heat transfer areas to produce a feed gas reflux at significantly lower temperature.

    Abstract translation: 天然气液化设备采用双塔或单柱配置的脱甲烷塔和脱乙烷塔,可用于乙烷回收和乙烷排放。 在乙烷回收期间,实现了95%的乙烷回收率和99%的丙烷回收率,而乙烷排放期间维持销售瓦斯指数的要求,同时维持95%的丙烷回收率。 残余气体循环交换器最优选构造成使用脱甲烷塔顶产物在乙烷回收过程中冷却一部分残余气体和一部分进料气体,或者使用两个不同的传热区域冷却一部分进料气体 以在显着较低的温度下产生进料气体回流。

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