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    • 2. 发明授权
    • Xylene process using perm-selective separations
    • 二甲苯工艺使用烫发选择性分离
    • US07381858B2
    • 2008-06-03
    • US10769539
    • 2004-01-30
    • George A. Huff, Jr.Bo ChenCraig W. CollingJeffrey T. Miller
    • George A. Huff, Jr.Bo ChenCraig W. CollingJeffrey T. Miller
    • C07C7/144
    • C07C7/144C07C15/08
    • Processes are disclosed for production of purified products from a fluid mixtures of C8 aromatics by means of integration of perm-selective separations with purified product recovery operations. The perm-selective separations of the invention comprise of one or more devices using polymeric perm-selective membrane devices to separate a meta-xylene enriched stream from fluid mixtures of C8 aromatics thereby producing a fluid comprising the remaining aromatic compounds which advantageously includes para-xylene. Processes of the invention are particularly useful for recovery of very pure meta-xylene and para-xylene co-products from liquid mixtures even containing ethylbenzene as well as the three xylene isomers.
    • 公开了通过将选择性分选与纯化的产物回收操作相结合从C 8芳烃的流体混合物生产纯化产物的方法。 本发明的烫发选择性分离包括使用聚合物选择性选择性膜装置的一种或多种装置,用于将富二甲苯富集流与C 8芳烃的流体混合物分离,从而产生包含剩余的 有利地包括对二甲苯的芳族化合物。 本发明的方法特别可用于从甚至含有乙苯的液体混合物以及三种二甲苯异构体中回收非常纯的间二甲苯和对二甲苯共产物。
    • 4. 发明申请
    • SEPARATION PROCESS USING AROMATIC-SELECTIVE POLYMERIC MEMBRANES
    • 使用芳族选择性聚合物膜的分离方法
    • US20080200696A1
    • 2008-08-21
    • US11428851
    • 2006-07-06
    • Jeffrey T. MillerBo ChenCraig W. CollingGeorge A. HuffBrian HenleyWilliam John KorosRaymond W. Chafin
    • Jeffrey T. MillerBo ChenCraig W. CollingGeorge A. HuffBrian HenleyWilliam John KorosRaymond W. Chafin
    • C07D209/38
    • C10G31/11B01D71/021
    • Processes are disclosed for production of value-added products from fluid admixtures of hydrocarbon compounds at least one of which is an aromatic hydrocarbon compound, by means of one or more devices using perm-selective polymeric membranes. More particularly, processes of the invention comprise separations using aromatic-selective polymeric materials comprising long-chain polymeric molecules in which recurring amide and imide linkages are part of the main polymer chain. Processes of the invention advantageously employ aromatic-selective membranes to separate an aromatic enriched stream from gaseous and/or liquid mixtures comprising one or more aromatic hydrocarbon compounds thereby producing a stream comprising the remaining compounds which may include alkenes and/or alkanes containing 3 or more carbon atoms, and/or alicyclic hydrocarbons. Processes of the invention are particularly useful for recovery of meta-xylene and para-xylene products from liquid mixtures even containing ethylbenzene as well as the three xylene isomers.
    • 公开了用于通过使用烫发选择性聚合物膜的一种或多种装置从其中至少一种为芳族烃化合物的烃化合物的流体混合物生产增值产品的方法。 更具体地,本发明的方法包括使用包含长链聚合物分子的芳族选择性聚合物材料的分离,其中重复酰胺和酰亚胺键是主要聚合物链的一部分。 本发明的方法有利地采用芳香族选择性膜从包含一种或多种芳族烃化合物的气体和/或液体混合物中分离富含芳烃的物流,从而产生包含剩余化合物的物流,其可包括含有3个或更多个的烯烃和/或烷烃 碳原子和/或脂环烃。 本发明的方法特别可用于从含有乙苯的液体混合物以及三种二甲苯异构体中回收间二甲苯和对二甲苯产物。