Methods of reducing and loading a metal-based catalyst into a reactor
    82.
    发明申请
    Methods of reducing and loading a metal-based catalyst into a reactor 审中-公开
    将金属基催化剂还原和负载到反应器中的方法

    公开(公告)号:US20050182145A1

    公开(公告)日:2005-08-18

    申请号:US10780049

    申请日:2004-02-17

    摘要: The present methods feature an overall decrease in transportation costs and catalyst preparation/protection measures. A catalyst comprising a catalytic metal in an oxide form is safely transported in an oxidizing environment to a synthesis site, without any special precautions being taken before and during transport. The catalyst is then reduced with a reducing gas at the synthesis plant. The reduced catalyst is mixed with a stripped hydrocarbon liquid to form a catalyst slurry, wherein the stripped hydrocarbon liquid is substantially free of dissolved oxygen after being contacted with a stripping gas. The mixing can take place in a pre-operational hydrocarbon synthesis reactor, or at least a portion of the slurry can be transferred to at least one synthesis reactor either during operation or at the reactor start-up. A lessening of costs is realized as a coating step to minimize oxidative degradation of the catalyst is not required.

    摘要翻译: 本方法运输成本和催化剂制备/保护措施总体下降。 包含氧化物形式的催化金属的催化剂在氧化环境中被安全地运输到合成部位,而在运输之前和期间都不采取任何特别的预防措施。 然后在合成工厂用催化剂还原气体。 将还原的催化剂与汽提的烃液体混合以形成催化剂浆料,其中汽提的烃液体在与汽提气体接触后基本上不含溶解的氧气。 混合可以在预操作的烃合成反应器中进行,或者在操作期间或在反应器启动时,至少一部分浆料可以转移到至少一个合成反应器。 实现成本的降低是不需要最小化催化剂的氧化降解的涂布步骤而实现的。

    Purification of titania
    84.
    发明申请
    Purification of titania 失效
    二氧化钛的净化

    公开(公告)号:US20040179995A1

    公开(公告)日:2004-09-16

    申请号:US10487385

    申请日:2004-02-20

    IPC分类号: C01G023/047

    摘要: The invention relates to a process for the purification of titania by treating the titania with an aqueous solution comprising one or more ammonium compounds at elevated temperatures, separating the titania from the aqueous solution, drying the titania and, optionally, calcination of the dried titania. More especially the invention relates to the removal of sulphur (mainly present in the form of sulphate compounds) from the titania. The titania purified according to the above process is especially suitable for the use as catalyst carrier.

    摘要翻译: 本发明涉及通过在升高的温度下用包含一种或多种铵化合物的水溶液处理二氧化钛来纯化二氧化钛的方法,将二氧化钛与水溶液分离,干燥二氧化钛,以及任选地煅烧干燥的二氧化钛。 更具体地,本发明涉及从二氧化钛中去除硫(主要以硫酸盐化合物的形式存在)。 根据上述方法纯化的二氧化钛特别适合用作催化剂载体。

    Density controlled carbon nanotube array electrodes
    85.
    发明申请
    Density controlled carbon nanotube array electrodes 失效
    密度可控碳纳米管阵列电极

    公开(公告)号:US20040058153A1

    公开(公告)日:2004-03-25

    申请号:US10424295

    申请日:2003-04-28

    申请人: Boston College

    发明人: Zhifeng F. Ren Yi Tu

    IPC分类号: C23C016/00 B32B009/00

    摘要: CNT materials comprising aligned carbon nanotubes (CNTs) with pre-determined site densities, catalyst substrate materials for obtaining them and methods for forming aligned CNTs with controllable densities on such catalyst substrate materials are described. The fabrication of films comprising site-density controlled vertically aligned CNT arrays of the invention with variable field emission characteristics, whereby the field emission properties of the films are controlled by independently varying the length of CNTs in the aligned array within the film or by independently varying inter-tubule spacing of the CNTs within the array (site density) are disclosed. The fabrcation of microelectrode arrays (MEAs) formed utilizing the carbon nanotube material of the invention is also described.

    摘要翻译: 描述了包含具有预定位点密度的对准的碳纳米管(CNT)的CNT材料,用于获得它们的催化剂底物材料以及在这种催化剂衬底材料上形成具有可控密度的对准的CNT的方法。 制造包含具有可变场发射特性的本发明的位置密度受控垂直排列的CNT阵列的膜,由此通过独立地改变膜内对齐的阵列中的CNT的长度或通过独立地改变来控制膜的场发射性质 公开了阵列内CNTs的管间距(位置密度)。 还描述了利用本发明的碳纳米管材料形成的微电极阵列(MEA)的制造。

    Metal oxide materials
    86.
    发明申请
    Metal oxide materials 审中-公开
    金属氧化物材料

    公开(公告)号:US20030227009A1

    公开(公告)日:2003-12-11

    申请号:US10460720

    申请日:2003-06-12

    IPC分类号: H01B001/00 H01C001/00

    摘要: The invention provides certain novel metal oxide materials which exhibit superconductivity at elevated temperatures and/or which are useful in electrode, electrolyte, cell and sensor applications, or as electrochemical catalysts. The metal oxide materials are generally within the formula Rnnull1-u-sAuMmnulleCunOwnullnull(1)where nnull0 and n is an integer or a non-integer, 1nullmnull2, 0nullsnull0.4, 0null3null4, and 2nnull(1/2) 0 and distorted or undistorted substantially square sheets of R for n>1.

    摘要翻译: 本发明提供某些新颖的金属氧化物材料,其在升高的温度下表现出超导性和/或可用于电极,电解质,电池和传感器应用,或用作电化学催化剂。 金属氧化物材料通常在公式Rn + 1-u-sAuMm + eCunOw(1)中,其中n> = 0,n是整数或非整数,1 <= m <= 2,0 <= s < = 0.4,0 <= 3 <= 4和2n +(1/2) = 1,u为2,对于0,u为n + 1 其中R和A分别是Y,La,Ce,Pr,Nd,Sm,Eu,Gd,Dy,Ho,Er,Tm,Yb,Lu,Ca,Sr, Ba,Li,Na,K,Rb或Cs; M是Cu,Bi,Sb,Pb,Tl或任何其它过渡金属中的任何一种或任何组合; Cu是由Bi,Sb,Pb,Tl或任何其它过渡金属中的任何一种或任何组合部分取代的Cu或Cu; 0为0或0,部分被N,P,S,Se或F中的任一个取代; 并且其中当n> 0时,材料的结构的特征在于变形或未失真的基本上正方形的CuO 2片状片,并且对于n> 1,失真或未失真的大致正方形的R片。