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    • 82. 发明授权
    • Process and apparatus for using steam cracked tar as steam cracker feed
    • 使用蒸汽裂解焦油作为蒸汽裂化器进料的方法和设备
    • US07815791B2
    • 2010-10-19
    • US12112704
    • 2008-04-30
    • Paul F. Keusenkothen
    • Paul F. Keusenkothen
    • C10C1/20
    • C10G69/06
    • A process and apparatus are provided for steam cracking heavy feeds, including steam cracked tars. The invention heats a steam cracked tar feed to provide a depolymerized steam cracked tar containing lower boiling molecules than the steam cracked tar feed, hydrogenates the depolymerized steam cracked tar using a hydrogenating catalyst, e.g., a downward flow fixed bed hydrotreater, to provide a hydrogenated steam cracked tar. At least a portion of the hydrogenated steam cracked tar is steam cracked in a steam cracking furnace comprising a convection zone and a radiant zone.
    • 提供了一种用于蒸汽破裂重料,包括蒸汽裂纹焦油的方法和装置。 本发明加热蒸汽裂解的焦油进料,以提供含有比蒸汽裂解的焦油进料更低沸点分子的解聚的蒸汽裂解焦油,使用氢化催化剂(例如向下流动的固定床加氢处理器)氢化解聚的蒸汽裂化焦油,以提供氢化 蒸汽裂解焦油。 氢化蒸汽裂解焦油的至少一部分在包括对流区和辐射区的蒸汽裂解炉中蒸汽裂解。