METAL-BASED COATINGS FOR INHIBITING METAL CATALYZED COKE FORMATION IN HYDROCARBON CONVERSION PROCESSES
    5.
    发明申请
    METAL-BASED COATINGS FOR INHIBITING METAL CATALYZED COKE FORMATION IN HYDROCARBON CONVERSION PROCESSES 审中-公开
    用于抑制碳氢化合物转化过程中金属催化焦化的金属基涂料

    公开(公告)号:US20090166259A1

    公开(公告)日:2009-07-02

    申请号:US12101778

    申请日:2008-04-11

    IPC分类号: C10G75/04

    CPC分类号: C10G75/00 C10G9/203

    摘要: A coating applied to at least a portion of the surfaces of reactors, reactor internals, other reactor components, and/or heater tubes is provided in order to minimize the formation of metal catalyzed coke in hydrocarbon conversion processes operating at temperatures at about 350° C. (662° F.) or greater and in reducing environments. These coatings may comprise Nickel coatings or complexes thereof, such as Ni—Al, Ni—Cr/Cr carbide, as well as aluminum painted coatings that are applied in a reduction cure process (e.g., application temperatures of about 600° C. (1112° F.)). Additionally, where H2S is necessary for the process, such as to minimize thermal cracking, the coatings also reduce corrosion of base metal due to sulfidation attack and eliminate the requirement of continuous replacement of reactor internals and other components.

    摘要翻译: 提供了施加到反应器,反应器内部件,其他反应器部件和/或加热器管的表面的至少一部分的涂层,以便最小化在约350℃的温度下操作的烃转化过程中金属催化焦炭的形成 (662°F)或更大,并且在还原环境中。 这些涂层可以包括镍涂层或其复合物,例如Ni-Al,Ni-Cr / Cr碳化物,以及以还原固化过程(例如,约600℃的应用温度(1112) F。))。 另外,如果H2S对于该方法是必需的,例如最小化热裂解,则涂层还可以减少由于硫化作用引起的贱金属的腐蚀,并消除对反应器内部件和其它部件的连续更换的要求。