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    Bimodal and multimodal dense boride cermets with low melting point binder
    51.
    发明申请
    Bimodal and multimodal dense boride cermets with low melting point binder 有权
    具有低熔点粘合剂的双峰和多峰致密硼化物金属陶瓷

    公开(公告)号：US20090186211A1

    公开(公告)日：2009-07-23

    申请号：US12291899

    申请日：2008-11-14

    申请人： ChangMin Chun ,  Narasimha-Rao Venkata Bangaru

    发明人： ChangMin Chun ,  Narasimha-Rao Venkata Bangaru

    IPC分类号： B32B18/00 ,  C04B35/58 ,  C04B35/56

    CPC分类号： C22C29/14 ,  B22F1/0014 ,  C22C29/005 ,  Y10T428/252

    摘要： Multimodal cermet compositions having lower melting point metal binders and methods of making are provided. The multimodal cermet compositions having a low melting point metal binder include: a) a ceramic phase, and b) a low melting point metal binder phase, wherein the ceramic phase is a metal boride with a multimodal distribution of particles, wherein the metal of the metal boride is chosen from Group IV, Group V, Group VI elements of the Long Form of the Periodic Table of Elements, and mixtures thereof, and wherein the low melting metal binder phase is represented by the formula (DEF), wherein D is a base metal chosen from Fe, Ni, Co, Mn and mixtures thereof, E is an alloying metal comprising Cr, Si, and B, and F is an alloying element chosen from C, N, P, Al, Ga, Ge, As, In, Sn, Sb, Pb, Sc, La, Y, Ce, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Re, Ru, Rh, Ir, Pd, Pt, Cu, Ag, Au and mixtures thereof, and wherein said low melting metal binder phase has a melting point less than 1250° C. The multimodal cermet compositions having a low melting point metal binder may be formed by a powder metallurgy process or an infiltration process. One or more advantages of the multimodal cermets with low melting point binder are high packing density of the ceramic phase, high fracture toughness, and improved erosion resistance at high temperatures up to 1000° C. The multimodal cermets with low melting point binder are suitable in high temperature erosion/corrosion applications in various chemical and petroleum environments.

    摘要翻译： 提供了具有较低熔点金属粘合剂和制备方法的多模金属陶瓷组合物。 具有低熔点金属粘合剂的多峰金属陶瓷组合物包括：a）陶瓷相，和b）低熔点金属粘结相，其中所述陶瓷相是具有多峰分布的颗粒的金属硼化物，其中所述金属 金属硼化物选自元素周期表的长形式的IV族，V族，VI族元素及其混合物，其中低熔点金属粘结相由式（DEF）表示，其中D为 选自Fe，Ni，Co，Mn及其混合物的贱金属，E是包含Cr，Si和B的合金金属，F是选自C，N，P，Al，Ga，Ge，As， In，Sn，Sb，Pb，Sc，La，Y，Ce，Ti，Zr，Hf，V，Nb，Ta，Mo，W，Re，Ru，Rh，Ir，Pd，Pt，Cu，Ag，Au和 其混合物，其中所述低熔点金属粘结相的熔点低于1250℃。具有低熔点金属粘合剂的多峰金属陶瓷组合物可以通过粉末冶金法 ess或渗透过程。 具有低熔点粘合剂的多峰金属陶瓷的一个或多个优点是陶瓷相的高填充密度，高断裂韧性和在高达1000℃的高温下改善的耐冲蚀性。具有低熔点粘合剂的多峰金属陶瓷适合于 各种化学和石油环境中的高温侵蚀/腐蚀应用。

    Large particle size and bimodal advanced erosion resistant oxide cermets
    53.
    发明申请
    Large particle size and bimodal advanced erosion resistant oxide cermets 有权
    大颗粒尺寸和双峰高级耐腐蚀氧化物金属陶瓷

    公开(公告)号：US20070151415A1

    公开(公告)日：2007-07-05

    申请号：US11639692

    申请日：2006-12-15

    申请人： ChangMin Chun ,  Narasimha-Rao Bangaru ,  John Peterson ,  Robert Antram ,  Christopher Fowler

    发明人： ChangMin Chun ,  Narasimha-Rao Bangaru ,  John Peterson ,  Robert Antram ,  Christopher Fowler

    IPC分类号： C22C29/12

    CPC分类号： C22C29/12 ,  C22C32/0015 ,  C22C32/0026 ,  C23C30/00 ,  Y10T428/12007

    摘要： One form of the disclosure includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Al, Si, Mg, Ca, Y, Fe, Mn, Group IV, Group V, Group VI elements, and mixtures thereof, Q is oxide, R is a base metal selected from the group consisting of Fe, Ni Co, Mn and mixtures thereof, S consists essentially of at least one element selected from Cr, Al and Si and at least one reactive wetting element selected from the group consisting of Ti, Zr, Hf, Ta, Sc, Y, La, and Ce, wherein the ceramic phase (PQ) ranges from about 55 to 95 vol % based on the volume of the cermet and is dispersed in the binder phase (RS) as particles with a diameter of 100 microns or greater. Another form of the disclosure relates to a bimodal size distribution of the metal oxide ceramic phase within the metal matrix phase. The metal oxide cermet compositions disclosed are suitable for high temperature applications requiring superior erosion and corrosion resistance.

    摘要翻译： 一种形式的公开内容包括由式（PQ）（RS）表示的金属陶瓷组合物，其包含：陶瓷相（PQ）和粘结相（RS），其中P是选自Al，Si， Mg，Ca，Y，Fe，Mn，IV族，V族，VI族元素及其混合物，Q为氧化物，R为选自Fe，Ni Co，Mn的贱金属及其混合物，S 基本上由选自Cr，Al和Si中的至少一种元素和选自Ti，Zr，Hf，Ta，Sc，Y，La和Ce中的至少一种反应性润湿元素组成，其中陶瓷相（PQ ）基于金属陶瓷的体积为约55至95体积％，并作为直径为100微米或更大的颗粒分散在粘结相（RS）中。 本公开的另一种形式涉及金属氧化物陶瓷相在金属基质相内的双峰尺寸分布。 所公开的金属氧化物金属陶瓷组合物适合于需要优异的耐腐蚀和耐腐蚀性的高温应用。

    High performance alloys with improved metal dusting corrosion resistance
    57.
    发明申请
    High performance alloys with improved metal dusting corrosion resistance 有权
    具有改善金属除尘耐腐蚀性能的高性能合金

    公开(公告)号：US20060257675A1

    公开(公告)日：2006-11-16

    申请号：US11126007

    申请日：2005-05-10

    申请人： ChangMin Chun ,  Trikur Ramanarayanan

    发明人： ChangMin Chun ,  Trikur Ramanarayanan

    IPC分类号： B32B15/04 ,  B32B9/00

    CPC分类号： C23C4/02 ,  C23C28/042 ,  Y10T428/12618 ,  Y10T428/1266 ,  Y10T428/12931 ,  Y10T428/12944 ,  Y10T428/12951

    摘要： Alloy compositions which are resistant to metal dusting corrosion are provided by the present invention. Also provided are methods for preventing metal dusting on metal surfaces exposed to carbon supersaturated environments. The alloy compositions include an alloy (PQR), and a multi-layer oxide film on the surface of the alloy (PQR). The alloy (PQR) includes a metal (P) selected from the group consisting of Fe, Ni, Co, and mixtures thereof, an alloying metal (Q) comprising Cr, Mn, and either Al, Si, or Al/Si, and an alloying element (R). When the alloying metal (Q) includes Al, the multi-layer oxide film on the surface of the alloy includes at least three oxide layers. When the alloying metal (Q) includes Si, the multi-layer oxide film on the surface of the alloy (PQR) includes at least four oxide layers. When the alloying metal (Q) includes Al and Si, the multi-layer oxide film on the surface of the alloy (PQR) includes at least three oxide layers. The multi-layer oxide film is formed in situ during use of the alloy composition in a carbon supersaturated metal dusting environment. Advantages exhibited by the disclosed alloy compositions include improved metal dusting corrosion resistance at high temperatures in carbon-supersaturated environments having relatively low oxygen partial pressures. The disclosed alloy compositions are suitable for use as the inner surfaces in reactor systems and refinery apparatus.

    摘要翻译： 耐金属粉尘腐蚀的合金组合物由本发明提供。 还提供了防止金属表面暴露于碳过饱和环境的金属粉尘的方法。 合金组合物包括合金（PQR）和合金表面上的多层氧化膜（PQR）。 合金（PQR）包括选自Fe，Ni，Co及其混合物的金属（P），包含Cr，Mn以及Al，Si或Al / Si的合金金属（Q），以及 合金元素（R）。 当合金金属（Q）包括Al时，合金表面上的多层氧化物膜包括至少三个氧化物层。 当合金金属（Q）包含Si时，合金表面上的多层氧化物膜（PQR）包括至少四个氧化物层。 当合金金属（Q）包括Al和Si时，合金表面上的多层氧化物膜（PQR）包括至少三个氧化物层。 在碳过饱和金属粉尘环境中的合金组合物的使用期间，多层氧化物膜原位形成。 所公开的合金组合物显示的优点包括在具有相对低的氧分压的碳过饱和环境中的高温下改善的金属粉尘耐腐蚀性。 所公开的合金组合物适用于反应器系统和炼油设备中的内表面。

    Porous pyrolysis reactor materials and methods
    59.
    发明授权
    Porous pyrolysis reactor materials and methods 有权
    多孔热解反应器的材料及方法

    公开(公告)号：US08932534B2

    公开(公告)日：2015-01-13

    申请号：US12623046

    申请日：2009-11-20

    申请人： ChangMin Chun ,  Frank Hershkowitz ,  Paul F. Keusenkothen ,  Shiun Ling ,  Gary David Mohr

    发明人： ChangMin Chun ,  Frank Hershkowitz ,  Paul F. Keusenkothen ,  Shiun Ling ,  Gary David Mohr

    IPC分类号： B01J19/00 ,  C10G9/20 ,  C10G9/16 ,  B01J19/24 ,  C10G9/00 ,  C10G11/00

    CPC分类号： C10G9/203 ,  C10G9/16 ,  C10G2300/4075

    摘要： In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, said apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of no less than 2060° C. and which remains in oxide form when exposed to a gas having carbon partial pressure of 10−22 bar and oxygen partial pressure of 10−10 bar, at a temperature of 1200° C.; wherein said refractory material has no less than 4 vol % formed porosity, measured at 20° C., based upon the bulk volume of said refractory material. In another embodiment, the refractory material has total porosity in the range of from 4 to 60 vol %.

    摘要翻译： 在一个方面，本发明包括用于热解烃原料的反应器装置，所述装置包括：反应器组件，其包含氧化物形式的耐火材料，耐火材料的熔点不低于2060℃，并保持在 在1200℃的温度下暴露于碳分压为10-22巴，氧气分压为10-10巴的气体时，氧化物形式。 其中所述耐火材料具有基于所述耐火材料的体积体积在20℃下测量的不少于4体积％的孔隙率。 在另一个实施方案中，耐火材料具有4至60体积％的总孔隙率。

    Alumina forming bimetallic tube for refinery process furnaces and method of making and using
    60.
    发明授权
    Alumina forming bimetallic tube for refinery process furnaces and method of making and using 有权
    用于炼油工艺炉的氧化铝形成双金属管及其制造和使用方法

    公开(公告)号：US08877342B2

    公开(公告)日：2014-11-04

    申请号：US13446376

    申请日：2012-04-13

    申请人： ChangMin Chun ,  David Samuel Deutsch ,  Vance A. McCray ,  James Edward Feather ,  Brenda Anne Raich

    发明人： ChangMin Chun ,  David Samuel Deutsch ,  Vance A. McCray ,  James Edward Feather ,  Brenda Anne Raich

    IPC分类号： C10G75/02 ,  C10G75/04 ,  F16L9/02 ,  B23K10/02 ,  B01J19/18 ,  B01J19/02

    CPC分类号： F16L9/02 ,  B01J19/02 ,  B01J19/1812 ,  B01J2219/00247 ,  B01J2219/0236 ,  B01J2219/0286 ,  B23K10/027

    摘要： Provided is a bimetallic tube for transport of hydrocarbon feedstocks in refinery process furnaces, and more particularly in furnace radiant coils, including: i) an outer tube layer being formed from stainless steels including chromium in the range of 15.0 to 26.0 wt. % based on the total weight of the stainless steel; ii) an inner tube layer being formed from an alumina forming bulk alloy including 5.0 to 10.0 wt. % of Al, 20.0 wt. % to 25.0 wt. % Cr, less than 0.4 wt. % Si, and at least 35.0 wt. % Fe with the balance being Ni, wherein the inner tube layer is formed plasma powder welding the alumina forming bulk alloy on the inner surface of the outer tube layer; and iii) an oxide layer formed on the surface of the inner tube layer, wherein the oxide layer is substantially comprised of alumina, chromia, silica, mullite, spinels, or mixtures thereof.

    摘要翻译： 本发明提供一种用于在精炼加工炉中更加特别是在炉内辐射线圈中输送烃原料的双金属管，包括：i）由不锈钢形成的外管层，该不锈钢包括15.0至26.0wt。 基于不锈钢总重量％; ii）内管层，其由包含5.0至10.0重量％的氧化铝形成块状合金形成。 ％的Al，20.0wt。 ％至25.0wt。 ％Cr，小于0.4wt。 ％Si，和至少35.0wt。 ％Fe，余量为Ni，其中内管层形成等离子体粉末，将氧化铝形成体合金焊接在外管层的内表面上; 以及iii）形成在所述内管层的表面上的氧化物层，其中所述氧化物层基本上由氧化铝，氧化铬，二氧化硅，莫来石，尖晶石或其混合物组成。