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    ALUMINA FORMING BIMETALLIC TUBE FOR REFINERY PROCESS FURNACES AND METHOD OF MAKING AND USING
    2.
    发明申请
    ALUMINA FORMING BIMETALLIC TUBE FOR REFINERY PROCESS FURNACES AND METHOD OF MAKING AND USING 审中-公开
    用于精炼工艺的二元乙烯管的成型和制造方法

    公开(公告)号：WO2012054377A1

    公开(公告)日：2012-04-26

    申请号：PCT/US2011/056528

    申请日：2011-10-17

    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY ,  CHUN, ChangMin ,  DEUTSCH, David, Samuel ,  MCCRAY, Vance, A. ,  FEATHER, James, E.

    Inventor： CHUN, ChangMin ,  DEUTSCH, David, Samuel ,  MCCRAY, Vance, A. ,  FEATHER, James, E.

    IPC: B21D39/00

    CPC classification number: F16L9/02 ,  B23K10/027 ,  B23K2203/20 ,  C10G9/203 ,  C10G75/00

    Abstract: 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 carbon steels or low chromium steels comprising less than 15.0 wt.% Cr based on the total weight of the 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.

    Abstract translation: 本发明提供一种用于在炼油工艺炉中更特别地在炉辐射线圈中输送烃原料的双金属管，其包括：i）由碳钢或低铬钢形成的外管层，其包含小于15.0重量％的Cr，基于 钢的总重量; ii）内管层，其由包含5.0至10.0重量％的Al，20.0重量％至25.0重量％的Cr，小于0.4重量％的Si和至少35.0重量％的氧化铝形成的大块合金形成。 ％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。

    ALUMINA FORMING BIMETALLIC TUBE FOR REFINERY PROCESS FURNACES AND METHOD OF MAKING AND USING
    3.
    发明申请
    ALUMINA FORMING BIMETALLIC TUBE FOR REFINERY PROCESS FURNACES AND METHOD OF MAKING AND USING 审中-公开
    用于精炼工艺的二元乙烯管的成型和制造方法

    公开(公告)号：WO2013155367A1

    公开(公告)日：2013-10-17

    申请号：PCT/US2013/036290

    申请日：2013-04-12

    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

    Inventor： CHUN, Changmin ,  DEUTSCH, David, Samuel ,  FEATHER, James, E. ,  MCCRAY, Vance, A. ,  RAICH, Brenda, Anne

    IPC: C10G75/00 ,  B23K10/02 ,  C10G9/16 ,  C10G9/20 ,  F16L9/02 ,  C23C28/02

    CPC classification number: C10G9/16 ,  C10G9/203 ,  C10G75/00 ,  F16L9/02

    Abstract: 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. Also provided are methods of making and using the bimetallic tube.

    Abstract translation: 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盘中输送烃原料的双金属管，包括：i）由不锈钢形成的外管层，其中铬含量范围为15.0至26.0重量％，基于 不锈钢的总重量; ii）内管层，其由包含5.0至10.0重量％的Al，20.0重量％至25.0重量％的Cr，小于0.4重量％的Si和至少35.0重量％的由氧化铝形成的大块合金形成， Fe的余量为Ni，其中，内管层形成在外管层的内表面上焊接氧化铝形成体合金的等离子体粉末; 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。 还提供了制造和使用双金属管的方法。

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