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    Fischer-tropsch process
    2.
    发明授权
    Fischer-tropsch process 失效
    费 - 托过程

    公开(公告)号：US06642281B1

    公开(公告)日：2003-11-04

    申请号：US09653720

    申请日：2000-09-01

    Applicant: David Chester Long ,  Michel A. Daage ,  Russell John Koveal

    Inventor： David Chester Long ,  Michel A. Daage ,  Russell John Koveal

    IPC: C07C2700

    CPC classification number: C10G2/331 ,  B01J23/94 ,  B01J25/04 ,  C07C1/045 ,  C07C1/049 ,  C07C2523/75 ,  Y02P20/584

    Abstract: There is provided an improved system and process for the catalytic hydrogenation of carbon monoxide to form a mixture of hydrocarbons utilizing a plurality of reactors in series. Synthesis gas entering the system under pressure is partially converted in at least one initial stage reactor and the effluent therefrom introduced into a final stage reactor. In the at least one initial stage reactor, a portion of the catalyst is continuously or periodically removed with some hydrocarbons and treated to renew, or renew and enhance it, and returned. The treatment comprises reducing the hydrocarbon context of the withdrawn mixture, heating to a temperature above at least one of the metals in the catalyst thereby forming a melt, removing any slag forming on the melt, cooling the melt and reducing the particle size of the resulting solid to a fine powder of renewed catalyst. The renewed catalyst may be treated to further enhance its properties by slurry low temperature oxidation or passivated before being returned to the at least one initial stage reactor. The final stage reactor, which has a catalyst of the same type or differing from that in the at least one initial stage reactor, receives a feed therefrom having a substantially reduced level of impurities, thereby enhancing the efficiency and longevity of the catalyst contained therein. The system can further employ at least one intermediate stage reactor configured so that all stages are operably connected in series and all reactors with a given stage are operably connected in parallel.

    Abstract translation: 提供了一种用于一氧化碳的催化氢化以形成使用多个串联反应器的烃的混合物的改进的系统和方法。 在压力下进入系统的合成气体在至少一个初级反应器中部分转化，并将其流出物引入到最终级反应器中。 在至少一个初级反应器中，一部分催化剂用一些碳氢化合物连续地或周期性地除去并被处理以更新，或更新和增强催化剂并返回。 处理包括减少抽出的混合物的烃背景，加热到催化剂中的至少一种金属上的温度，从而形成熔体，去除在熔体上形成的任何熔渣，冷却熔体并降低所得到的 固体到更新催化剂的细粉末。 可以处理更新的催化剂以通过浆料低温氧化进一步增强其性能，或者在被返回到至少一个初级反应器之前被钝化。 具有相同类型或不同于至少一个初级反应器中的催化剂的最终级反应器从其中接收具有显着降低的杂质水平的进料，从而提高其中所含催化剂的效率和寿命。 该系统可以进一步采用至少一个中间级反应器，其构造成使得所有级可串联地可操作地连接，并且具有给定级的所有反应器可并联地可操作地连接。

    Method and system for handling slurries of varying liquid rates and solids content
    8.
    发明授权
    Method and system for handling slurries of varying liquid rates and solids content 有权
    处理不同液体速率和固体含量的浆料的方法和系统

    公开(公告)号：US08114915B2

    公开(公告)日：2012-02-14

    申请号：US12590581

    申请日：2009-11-10

    Applicant: David G. Hammond ,  Jorge L. Soto

    Inventor： David G. Hammond ,  Jorge L. Soto

    IPC: C07C27/00 ,  B01D21/26

    CPC classification number: C07C1/049 ,  C10G2/342 ,  C10G2/344

    Abstract: A method and system for collecting a plurality of slurries containing solid particles of varying particle size distribution and amount and performing a classification and separation on the slurries is provided whereby a fines-rich stream and a stream containing substantially coarse particles is obtained. The method and system includes separating the fines from the slurry liquid and thickening the separated coarse particles in a settling zone for subsequent use.

    Abstract translation: 提供一种用于收集含有不同粒度分布和数量的固体颗粒并且在浆料上进行分级和分离的多种浆料的方法和系统，由此获得富含细粉的料流和含有基本上粗颗粒的料流。 该方法和系统包括将细粒从浆液中分离出来，并将沉淀区中分离的粗颗粒加厚以供后续使用。

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