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    • 46. 发明授权
    • 공액 디엔의 분리정제방법 및 분리정제장치
    • 用于分离和纯化混合二烯的方法和装置
    • KR100845750B1
    • 2008-07-11
    • KR1020047005729
    • 2001-10-19
    • 제온 코포레이션
    • 가나우찌마사노부가지마사요시
    • C07C7/20
    • C07C7/05C07C7/005C07C7/20C07C11/12
    • A method of separating and purifying conjugated diene, including the steps of: obtaining a first bottom product by distilling a hydrocarbon mixture including 80% or more conjugated diene under an environment in the presence of a polymerization inhibitor in a lower boiling distillation column 14; obtaining a second bottom product and distillation portion by distilling said first bottom product under an environment in the presence of a polymerization inhibitor in a higher boiling distillation column 16; measuring concentration of a polymerization inhibitor included in said first bottom product and second bottom product respectively; controlling the concentration of the polymerization inhibitor included in said first bottom product and/or second bottom product by changing a supply amount of the polymerization inhibitor to said lower boiling distillation column 14 and/or higher boiling distillation column 16 in accordance with said measured concentration of the polymerization inhibitor included in said first bottom product and second bottom product respectively; measuring concentration of a polymerization inhibitor included in said distillation portion; and controlling the concentration of the polymerization inhibitor included in said distillation portion by changing a supplying stage of the polymerization inhibitor to said higher boiling distillation column 16 in accordance with said measured concentration of the polymerization inhibitor included in distillation portion. The method allows the suppression of generation of a popcorn polymer in the apparatus with good efficiency and stability.
    • 48. 发明公开
    • 통합 올레핀 회수 공정
    • 一体化烯烃回收方法
    • KR1020080056107A
    • 2008-06-20
    • KR1020070131391
    • 2007-12-14
    • 켈로그 브라운 앤드 루트 엘엘씨
    • 쿠마버마비젠더
    • C07C7/00B01D3/40
    • F25J3/0219C07C7/005F25J3/0233F25J3/0238F25J3/0242F25J2200/04F25J2200/30F25J2200/74F25J2200/76F25J2200/78F25J2200/94F25J2215/62F25J2230/08F25J2270/02F25J2270/88F25J2290/40Y02P20/125C07C11/02
    • An integrated process for recovering olefins is provided to avoid a need for a condenser, reflux drum and ethylene pump used in a conventional fraction process, thereby simplifying the overall process. An integrated process for recovering olefins by separating a light hydrocarbon stream(10) containing at least one alkane compound and at least one olefin compound comprises the steps of: supplying the light hydrocarbon stream to a fraction column(14) to obtain an overhead olefin vapor stream(20); supplying a plurality of olefin vapor streams to an olefin cooling compressor train(22), wherein one of the streams includes the overhead olefin vapor stream from the fraction column; cooling and condensing the olefin coolant from the olefin cooling compressor train to obtain a liquid olefin coolant; refluxing a first part of the liquid olefin coolant to the fraction column; supplying the olefin coolant compressor train by using a second part of the liquid olefin coolant forming at least one olefin coolant vapor stream; and recovering a third part of the liquid olefin coolant as an olefin product stream.
    • 提供了用于回收烯烃的综合方法,以避免需要在常规级分方法中使用的冷凝器,回流鼓和乙烯泵,从而简化了整个方法。 通过分离含有至少一种烷烃化合物和至少一种烯烃化合物的轻质烃物流(10)来回收烯烃的综合方法包括以下步骤:将轻烃物流供应到馏分塔(14)以获得顶部烯烃蒸气 流(20); 将多个烯烃蒸汽流供应到烯烃冷却压缩机组(22),其中一个流包括来自馏分塔的顶部烯烃蒸汽流; 冷却并冷凝来自烯烃冷却压缩机组的烯烃冷却剂以获得液态烯烃冷却剂; 将液体烯烃冷却剂的第一部分回流到馏分塔; 通过使用形成至少一种烯烃冷却剂蒸汽流的液态烯烃冷却剂的第二部分来供应烯烃冷却剂压缩机组; 并回收作为烯烃产物流的液体烯烃冷却剂的第三部分。