Crude oil pre-heat train with improved heat transfer and method of improving heat transfer
    4.
    发明申请
    Crude oil pre-heat train with improved heat transfer and method of improving heat transfer 失效
    具有改善传热的原油预热列车和改善传热的方法

    公开(公告)号:US20090090613A1

    公开(公告)日:2009-04-09

    申请号:US12232946

    申请日:2008-09-26

    IPC分类号: C10B43/14 F28G7/00

    CPC分类号: C10G75/04 C10G9/16

    摘要: Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train that experience the highest rates of fouling and heat loss. In application, bundles of corrosion resistant smoothed tubes are deployed in the late pre-heat train to significantly reduce the formation of harder deposits. Vibration can be used as an adjunct approach in conjunction with the corrosion resistant, smooth tubes, or deployed alone on existing bundles. The use of high performing, more durable exchangers in select locations justifies the increased cost of these components.

    摘要翻译: 防污机构在热交换系统中的目标应用产生更高的能量回收率。 具有高缓解率的防污机制只能部署在经受最高污染和热损失率的预热列车的最热部分。 在应用中,在后期预热火车中部署了耐腐蚀平滑管束,以显着减少较硬沉积物的形成。 振动可以作为辅助方法与耐腐蚀,光滑的管一起使用,或单独部署在现有的束上。 在选择的位置使用高性能,更耐用的交换器证明了这些部件的成本增加。

    Chromiun-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components
    10.
    发明授权
    Chromiun-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components 失效
    富含氧化铬的氧化物材料和预氧化方法,以减少与传热组分相关的腐蚀和结垢

    公开(公告)号:US08465599B2

    公开(公告)日:2013-06-18

    申请号:US13193223

    申请日:2011-07-28

    IPC分类号: C23C8/14

    摘要: A method of providing sulfidation corrosion resistance and corrosion induced fouling resistance for a heat transfer component is disclosed. The heat transfer component includes a heat exchange surface formed from a chromium-enriched oxide containing material formed from the composition δ, ε, and ζ, wherein ζ is a steel containing at least about 5 to about 40 wt. % chromium, ε is a chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) formed on the surface of the steel ζ, wherein M is a metal containing at least 5 wt. % Cr based on the total weight of the metal M, and δ is a top layer formed on the surface of the chromium-enriched oxide ε, comprising sulfide, oxide, oxysulfide, and mixtures thereof. The top layer δ comprises iron sulfide (Fe1-xS), iron oxide (Fe3O4), iron oxysulfide, iron-chromium sulfide, iron-chromium oxide, iron-chromium oxysulfide, and mixtures thereof. The metal M of the chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) may comprise Fe, Cr, and constituting elements of the steel ζ. The steel ζ may be selected from low chromium steels, ferritic stainless steels, martensitic stainless steels, austenitic stainless steels, duplex stainless steels and precipitation-hardenable alloys.

    摘要翻译: 公开了一种提供耐热性和耐腐蚀性的传热部件的耐污性的方法。 传热组件包括由组合物δ,ε和zeta形成的含铬富含氧化物材料形成的热交换表面,其中ζ是含有至少约5至约40wt。 %铬,ε是形成在钢ζ表面上的富铬氧化物(M3O4或M2O3或其混合物),其中M是含有至少5wt。 %Cr,基于金属M的总重量,δ是在富含铬的氧化物ε的表面上形成的顶层,其包含硫化物,氧化物,氧硫化物及其混合物。 顶层delta包括硫化铁(Fe1-xS),氧化铁(Fe3O4),硫氧化铁,铁 - 硫化铬,铁 - 氧化铬,铁 - 硫氧化铬及其混合物。 富含铬的氧化物(M3O4或M2O3或其混合物)的金属M可以包含Fe,Cr和钢ζ的构成元素。 钢ζ可选自低铬钢,铁素体不锈钢,马氏体不锈钢,奥氏体不锈钢,双相不锈钢和沉淀硬化合金。