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12 条记录 (耗时 0.026 秒)

    Passivation of steel surface to reduce coke formation
    2.
    发明授权
    Passivation of steel surface to reduce coke formation 有权
    钝化钢表面以减少焦炭的形成

    公开(公告)号：US07056399B2

    公开(公告)日：2006-06-06

    申请号：US10425544

    申请日：2003-04-29

    申请人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Leslie Wilfred Benum

    发明人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Leslie Wilfred Benum

    IPC分类号： C21D1/74

    CPC分类号： C10G75/00 ,  C10G2300/705 ,  C10G2300/708 ,  C23C8/02 ,  C23C8/18 ,  C23C8/80

    摘要： The present invention provides a process to treat steels, preferably carbon steel to reduce the tendency of the steel to form coke when in contact with hydrocarbons at elevated temperatures. The steel may be first reduced then treated with a mixture of compounds which further modify the reduced surface and finally the treated steel surface is cured. The treated steel has a reduced propensity to form coke when in contact with hydrocarbons particularly at higher temperatures.

    摘要翻译： 本发明提供了一种处理钢，优选碳钢的方法，以降低在高温下与烃接触时钢形成焦炭的倾向。 可以先将钢还原，然后用进一步改性还原表面的化合物混合物处理，最后处理的钢表面固化。 当与烃接触时，经处理的钢具有降低的焦炭形成倾向，特别是在较高温度下。

    Decoke enhancers for transfer line exchangers
    4.
    发明授权
    Decoke enhancers for transfer line exchangers 失效
    对传输线路交换机进行增强

    公开(公告)号：US06772771B2

    公开(公告)日：2004-08-10

    申请号：US10108519

    申请日：2002-03-28

    申请人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Ted Magtanong ,  Les Benum

    发明人： Haiyong Cai ,  Michael C. Oballa ,  Andrzej Krzywicki ,  Ted Magtanong ,  Les Benum

    IPC分类号： B08B308

    CPC分类号： C10G9/16

    摘要： In a steam cracking operation the formation of coke is a problem which needs to be overcome. While significant work has been done on decoking of furnaces little work has been done regarding transfer line exchangers. Coking of transfer line exchangers (TLE) may be reduced by injection of a solution containing at least one group 1 or 2 metal dichromate or dichromate and one or more of a group 1, 2 or 7 metal carbonate into the TLE.

    摘要翻译： 在蒸汽裂解操作中，焦炭的形成是需要克服的问题。 虽然在窑炉取样方面做了大量工作，但是对转换线路交换机的工作很少。 转移线交换器（TLE）的焦化可以通过将包含至少一种1或2族金属重铬酸盐或重铬酸盐和一种或多种第1,2或7种金属碳酸盐的溶液注入到TLE中来降低。

    Process of treating a stainless steel matrix
    7.
    发明授权
    Process of treating a stainless steel matrix 有权
    处理不锈钢基体的工艺

    公开(公告)号：US06436202B1

    公开(公告)日：2002-08-20

    申请号：US09660084

    申请日：2000-09-12

    申请人： Leslie Wilfred Benum ,  Michael C. Oballa

    发明人： Leslie Wilfred Benum ,  Michael C. Oballa

    IPC分类号： C23C2800

    CPC分类号： C23C8/18 ,  C21D1/72 ,  C22C38/38 ,  C22C38/58 ,  C23C8/02

    摘要： Heat resistant stainless steel may be treated in a low oxidizing atmosphere in a heat/soak-heat/soak sequence to deplete its surface of Ni and Cr which tend to catalyze coking of hydrocarbons in contact with the surface of the stainless steel, and enrich it with elements which are inert to coke formation. Parts made of stainless steel, such as furnace tubes or coils, treated in accordance with the present invention when used have a significantly reduced rate of catalytic coking.

    摘要翻译： 耐热不锈钢可以在低氧化性气氛中进行加热/浸泡加热/浸泡顺序处理，以消除Ni和Cr的表面，Ni和Cr倾向于催化与不锈钢表面接触的烃的焦化，并使其富集 具有对焦炭形成惰性的元素。 使用时按照本发明处理的不锈钢制成的零件（如炉管或线圈）具有显着降低的催化焦化速率。

    Aromatic saturation and ring opening process
    8.
    发明授权
    Aromatic saturation and ring opening process 有权
    芳香饱和度和开环过程

    公开(公告)号：US07513988B2

    公开(公告)日：2009-04-07

    申请号：US11515018

    申请日：2006-09-01

    申请人： Michael C. Oballa ,  Vasily Simanzhenkov ,  Jens Weitkamp ,  Roger Gläser ,  Yvonne Traa ,  Fehime Demir

    发明人： Michael C. Oballa ,  Vasily Simanzhenkov ,  Jens Weitkamp ,  Roger Gläser ,  Yvonne Traa ,  Fehime Demir

    IPC分类号： C10G45/44

    CPC分类号： C10G45/44 ,  C10G45/48 ,  C10G45/50 ,  C10G45/58 ,  C10G65/12 ,  C10G2300/1096 ,  Y10S585/94

    摘要： Less conventional sources of hydrocarbon feedstocks such as oil sands, tar sands and shale oils are being exploited. These feedstocks generate a larger amount of heavy oil, gas oil, asphaltene products and the like containing multiple fused aromatic ring compounds. These multiple fused aromatic ring compounds can be converted into feed for a hydrocarbon cracker by first hydrogenating at least one ring in the compounds and subjecting the resulting compound to a ring opening and cleavage reaction. The resulting product comprises lower paraffins suitable for feed to a cracker, higher paraffins suitable for example as a gasoline fraction and mono aromatic ring compounds (e.g. BTX) that may be further treated.

    摘要翻译： 正在开发较少常规的烃原料来源，如油砂，焦油砂和页岩油。 这些原料产生更多量的含有多个稠合芳环化合物的重油，瓦斯油，沥青质产物等。 这些多重稠合芳族环化合物可以通过首先氢化化合物中的至少一个环并使所得化合物进行开环和裂解反应而转化为烃裂化器的进料。 所得产物包含适于进料到裂化器的较低链烷烃，适合于例如汽油馏分的较高链烷烃和可进一步处理的单芳族环化合物（例如BTX）。