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    • 114. 发明申请
    • SELECTIVE HYDROGENATION OF HIGHLY UNSATURATED COMPOUNDS IN HYDROCARBON STREAMS
    • 烃类化合物中高度不饱和化合物的选择性加氢
    • WO1995015934A1
    • 1995-06-15
    • PCT/US1994007758
    • 1994-07-21
    • CHEMICAL RESEARCH & LICENSING COMPANY
    • CHEMICAL RESEARCH & LICENSING COMPANYHEARN, DennisARGANBRIGHT, Robert, P.JONES, Edward, M., Jr.SMITH, Lawrence, A., Jr.GILDERT, Gary, R.
    • C07C05/05
    • C10G70/02C10G45/32
    • A process for the selective hydrogenation of the diolefins and acetylenic compounds in an olefin-rich aliphatic hydrocarbon stream (1) comprises contacting the feed stream (1) at 40-300 DEG F under low hydrogen partial pressure of 0.1-70 psia at a total pressure of 0-350 psig in a distillation column reactor (10) containing a hydrogenation catalyst bed (12) which serves as a component of a distillation structure (10), such as supported PdO encased in a tubular wire mesh. Essentially no hydrogenation of the olefins occur. The feed stream (1) enters below or at the lower end of the catalyst bed (12), and is contacted with hydrogen fed through line (2) in the catalyst bed (12). The overhead (3) is obtained at the overhead, condensed in a condenser (20) and separated in a settler (30), and partially recycled back to catalyst bed (12) as a reflux stream (6). The bottom stream (11) is obtained at the lower end of the distillation reactor, and is partially recycled back as stream (4) after being heated in a heat exchanger (40) as recycle stream (13). Net hydrogenation effluent is obtained as stream (9), and light gases as stream (7).
    • 在富烯烃脂肪族烃流(1)中选择性氢化二烯烃和炔属化合物的方法包括在40-300°F的低氢分压0.1-70psia下将进料流(1)在总共 在含有用作蒸馏结构(10)的成分的氢化催化剂床(12)的蒸馏塔反应器(10)中的压力为0-350psig,例如包裹在管状丝网中的负载PdO。 基本上没有发生烯烃的氢化。 进料流(1)在催化剂床(12)的下端或下端进入,并与在催化剂床(12)中通过管线(2)进料的氢气接触。 塔顶馏出物(3)在顶部获得,在冷凝器(20)中冷凝并在沉降器(30)中分离,并作为回流(6)部分地再循环回催化剂床(12)。 底部物流(11)在蒸馏反应器的下端获得,并且在作为再循环物流(13)的热交换器(40)中加热后,以物流(4)的形式部分地再循环回来。 净氢化流出物作为流(9)获得,轻质气体如流(7)获得。