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公开(公告)号：EP2794067B1
公开(公告)日：2020-03-25
申请号：EP12860299.2
申请日：2012-10-29
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2.发明公开STABILIZATION OF POROUS MORPHOLOGIES FOR HIGH PERFORMANCE CARBON MOLECULAR SIEVE HOLLOW FIBER MEMBRANES 审中-公开多孔形态的一个强大的碳分子筛的中空纤维膜的稳定化
公开(公告)号：EP2794067A1
公开(公告)日：2014-10-29
申请号：EP12860299.2
申请日：2012-10-29
CPC分类号： B01D67/0076 , B01D53/228 , B01D67/0067 , B01D69/08 , B01D71/021 , B01D2325/022 , B01D2325/20 , Y02C10/10
摘要： Carbon molecular sieves (CMS) membranes having improved thermal and/or mechanical properties are disclosed herein. In one embodiment, a carbon molecular sieve membrane for separating a first and one or more second gases from a feed mixture of the first gas and one or more second gases comprises a hollow filamentary carbon core and a thermally stabilized polymer precursor disposed on at least an outer portion of the core. In some embodiments, the thermally stabilized polymer precursor is created by the process of placing in a reaction vessel the carbon molecular sieve membrane comprising an unmodified aromatic imide polymer, filling the reaction vessel with a modifying agent, and changing the temperature of the reaction vessel at a temperature ramp up rate and ramp down rate for a period of time so that the modifying agent alters the unmodified aromatic imide polymer to form a thermally stabilized polymer precursor.
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3.发明公开
公开(公告)号：EP3862073A1
公开(公告)日：2021-08-11
申请号：EP21165676.4
申请日：2014-09-30
摘要： The present invention provides an asymmetric modified CMS hollow fiber membrane having improved gas separation performance properties and a process for preparing an asymmetric modified CMS hollow fiber membrane having improved gas separation performance properties. The process comprises treating a polymeric precursor fiber with a solution containing a modifying agent prior to pyrolysis. The concentration of the modifying agent in the solution may be selected in order to obtain an asymmetric modified CMS hollow fiber membrane having a desired combination of gas permeance and selectivity properties. The treated precursor fiber is then pyrolyzed to form an asymmetric modified CMS hollow fiber membrane having improved gas permeance.
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公开(公告)号：EP2911769A1
公开(公告)日：2015-09-02
申请号：EP13852158.8
申请日：2013-10-29
发明人： KOROS, William John , NING, Xue
IPC分类号： B01D59/12
CPC分类号： B01D71/64 , B01D53/228 , B01D67/0002 , B01D67/0067 , B01D69/02 , B01D71/021 , B01D2053/221 , B01D2256/245 , B01D2257/102 , B01D2325/20 , B29C71/02 , B29K2079/08 , B29L2031/755 , C10L3/105
摘要： The various embodiments of the disclosure relate generally to carbon molecular sieve membranes (CMSM) and their associated fabrication processes for the separation of nitrogenmethane gas mixtures, and more particularly to CMSM that maintain high nitrogen-methane selectivity and high gas permeabilities. Methods for removing nitrogen from a nitrogen methane mixture gas via the use of the CMS membranes and gas enrichment devices using the same are also disclosed.
摘要翻译： 本公开的各种实施方案通常涉及碳分子筛膜（CMSM）及其相关的用于分离氮气/甲烷气体混合物的制造工艺，并且更具体地涉及保持高氮 - 甲烷选择性和高气体渗透率的CMSM。方法 还公开了通过使用CMS膜和使用其的气体浓缩装置从氮气甲烷混合气体中除去氮气。
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5.发明公开
公开(公告)号：EP3302762A1
公开(公告)日：2018-04-11
申请号：EP16804307.3
申请日：2016-06-01
发明人： KOROS, William John , ZHANG, Chen
CPC分类号： B01D71/021 , B01D53/22 , B01D53/228 , B01D67/0067 , B01D69/02 , B01D2053/224 , B01D2253/102 , B01D2256/10 , B01D2256/12 , B01D2256/16 , B01D2256/245 , B01D2257/504 , B01D2323/08 , B01D2325/022 , B01D2325/20 , Y02C10/10
摘要： Embodiments of the present disclosure are directed to a process for making a carbon molecular sieve membrane having a desired permselectivity between a first gas species and a second gas species, in which the second gas species has a larger kinetic diameter than the first gas species. The process comprises providing a polymer precursor and pyrolyzing the polymer precursor at a pyrolysis temperature that is effective to selectively reduce the sorption coefficient of the second gas species, thereby increasing the permselectivity of the resulting carbon molecular sieve membrane.
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6.发明公开HIGH MOLECULAR WEIGHT, MONOESTERIFIED POLYIMIDE POLYMER CONTAINING A SMALL AMOUNT OF BULKY DIAMINE 审中-公开高分子量，含少量大块二胺的单酯聚酰亚胺聚合物
公开(公告)号：EP3237492A1
公开(公告)日：2017-11-01
申请号：EP15828405.9
申请日：2015-12-23
CPC分类号： C08G73/1028 , B01D53/228 , B01D67/0006 , B01D71/64 , B01D71/82 , B01D2256/245 , B01D2257/504 , B01D2323/30 , C08G73/101 , C08G73/1039 , C08G73/1042 , C08G73/1067 , Y02C10/10 , Y02P20/152
摘要： One method as described herein relates to making a high molecular weight, monoesterified polyimide polymer using a small amount of bulky diamine. These high molecular weight, monoesterified polyimide polymers are useful in forming crosslinked polymer membranes with high permeance that are useful for the separation of fluid mixtures. Another method as described herein relates to making the crosslinked membranes from the high molecular weight, monoesterified polyimide polymer containing a small amount of bulky diamine. The small amount of bulky diamine allows for formation of both the high molecular weight polyimide polymer and for covalent ester crosslinks via reaction of the carboxylic acid groups with a diol crosslinking agent. This small amount of bulky diamines reduces chain mobility or segmental motion during crosslinking and reduces large loss of permeance. As such, this method provides a crosslinked membrane with good permeance and selectivity.
摘要翻译： 本文所述的一种方法涉及使用少量庞大的二胺制备高分子量单酯化聚酰亚胺聚合物。 这些高分子量的单酯化聚酰亚胺聚合物可用于形成具有高渗透性的交联聚合物膜，其用于分离流体混合物。 如本文所述的另一种方法涉及由含有少量庞大二胺的高分子量单酯化聚酰亚胺聚合物制造交联膜。 少量庞大的二胺允许形成高分子量聚酰亚胺聚合物和用于通过羧酸基团与二醇交联剂反应的共价酯交联。 这种少量庞大的二胺在交联过程中降低链的活动性或节段运动，并减少大量渗透损失。 如此，该方法提供了具有良好渗透性和选择性的交联膜。
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