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    • 2. 发明公开
    • NOVEL ENERGY EFFICIENT AND THROUGHPUT ENHANCING EXTRACTIVE PROCESS FOR AROMATICS RECOVERY
    • 新的节能和DURCHSATZERHÖHENDES采掘一种获得芳烃
    • EP2268772A4
    • 2015-09-09
    • EP08780037
    • 2008-07-08
    • CPC CORP TAIWANAMT INT INC
    • LEE FU-MINGHWANG JYH-HAURLIN TZONG-BINSHEN HUNG-CHUNGWU KUANG-YEUCHIU TSUNG-MINCHEN ZONG-YINGKUO TUNG-HSIUNGWU YU-MING
    • C10G21/28C07C7/10
    • C10G21/06C10G21/28C10G2300/4056
    • An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible.
    • 用于芳香族化合物回收的能量高效,高通量方法可以通过改造现有的环丁砜溶剂萃取设备,或构建新的被容易地实现,以便纳入独特工艺操作涉及液 - 液萃取和萃取蒸馏。 当前工业环丁砜溶剂的液 - 液萃取方法使用液 - 液萃取塔采掘汽提塔,溶剂回收塔,萃余液洗涤塔和溶剂再生器。 用于从芳族和非芳族烃的混合物的芳香族烃采收的改进的过程中需要所述萃取汽提塔的转化为经修饰的萃取蒸馏塔。 所述改造集成了液 - 液萃取和萃取蒸馏方面的独特优势成一个过程显着地降低能量消耗和提高工艺产量。 的改造需要基本上仅管变化和原始液液萃取设备的小型装备的调整,因此是,可逆的。