公开(公告)号：EP1102734A4

公开(公告)日：2001-11-07

申请号：EP99937376

申请日：1999-07-22

申请人： EXXONMOBIL OIL CORP ,  GRACE W R & CO

发明人： CHIN ARTHUR A ,  KNICKERBOCKER BRYAN M ,  WALDRON TERRY R ,  TREWELLA JEFFREY C ,  WHITE LLOYD S

IPC分类号： B01D61/02 ,  B01D67/00 ,  B01D71/64 ,  C07C7/144 ,  C07C15/02 ,  C10G31/09 ,  C10G31/11 ,  C10G57/00 ,  C10G67/02

CPC分类号： B01D67/0088 ,  B01D61/02 ,  B01D71/64 ,  C07C7/144 ,  C10G31/11 ,  C10G57/00 ,  C10G67/02

摘要： Selectively permeable separation of aromatic hydrocarbons from non-aromatic hydrocarbons in a feed stream is accomplished using improved asymmetric membranes. The preferred membranes are fashioned from a polyimide and conditioned with a lubricating oil. Feed streams containing a mixture of aromatic and non-aromatic hydrocarbons are contacted with the dense active layer side of the polyimide membrane under a pressure and temperature sufficient to selectively permeate the desired aromatic hydrocarbon.

摘要翻译： 使用改进的不对称膜完成芳香烃与进料流中非芳香烃的选择性渗透分离。 优选的膜由聚酰亚胺制成并用润滑油调节。 含有芳族烃和非芳族烃混合物的进料物流在足以选择性渗透所需芳烃的压力和温度下与聚酰亚胺膜的致密活性层侧接触。