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公开(公告)号:US06755975B2
公开(公告)日:2004-06-29
申请号:US10170333
申请日:2002-06-12
IPC分类号: C02E144
CPC分类号: B01D61/362 , B01D61/364 , C07C17/38 , C07C29/76 , C07C45/786 , C07C19/05 , C07C49/08 , C07C31/04 , C07C31/08 , C07C31/10
摘要: A process for treating liquids containing organic compounds and water. The process includes a pervaporation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporation step. The process yields a membrane residue stream, a stream enriched in the more volatile component (usually the organic) as the overhead stream from the dephlegmator and a condensate stream enriched in the less volatile component (usually the water) as a bottoms stream from the dephlegmator. Any of these may be the principal product of the process. The membrane separation step may also be performed in the vapor phase, or by membrane distillation.
摘要翻译: 一种处理含有机化合物和水的液体的方法。 该方法包括渗透蒸发步骤以及分馏步骤以从渗透蒸发步骤处理至少一部分渗透物蒸气。 该方法产生膜残留物流,富含较高挥发性成分(通常为有机物质)的物流作为来自分馏塔的塔顶物流和富集较不挥发性成分(通常为水)的冷凝物流,作为来自分馏塔的塔底物流 。 任何这些可能是该过程的主要产物。 膜分离步骤也可以在气相中进行,也可以通过膜蒸馏进行。