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Patent Agency Ranking
公开(公告)号：US20230406789A1
公开(公告)日：2023-12-21
申请号：US18363382
申请日：2023-08-01
Inventor： Bhupender S. MINHAS , Jeevan S. Abichandani , Marcus L.H. Van Nuland , Wai Kit Cheng , Chong-Jhoo Wang , Robert G. Tinger
CPC classification number: C07C7/144 , B01D2317/025 , C07C7/005 , B01D61/007
Abstract: Selective removal of non-aromatic hydrocarbons from a xylene isomerization process for para-xylene production is accomplished using a membrane unit positioned within a xylene recovery loop. The membrane unit may include a one-stage or multi-stage (e.g., two-stage) membrane system and may be configured to separate a membrane unit product stream from a non-aromatics rich stream, which can be removed from the xylene recovery loop. The membrane unit may have a xylene permeance of about 60 gm/m2/hr/psi and a xylene to non-aromatic permeance ratio of about 15.
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公开(公告)号：US12269799B2
公开(公告)日：2025-04-08
申请号：US18363382
申请日：2023-08-01
Inventor： Bhupender S. Minhas , Jeevan S. Abichandani , Marcus L. H. Van Nuland , Wai Kit Cheng , Chong-Jhoo Wang , Robert G. Tinger
Abstract: Selective removal of non-aromatic hydrocarbons from a xylene isomerization process for para-xylene production is accomplished using a membrane unit positioned within a xylene recovery loop. The membrane unit may include a one-stage or multi-stage (e.g., two-stage) membrane system and may be configured to separate a membrane unit product stream from a non-aromatics rich stream, which can be removed from the xylene recovery loop. The membrane unit may have a xylene permeance of about 60 gm/m2/hr/psi and a xylene to non-aromatic permeance ratio of about 15.
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公开(公告)号：US11999692B2
公开(公告)日：2024-06-04
申请号：US18363360
申请日：2023-08-01
Inventor： Bhupender S. Minhas , Jeevan S. Abichandani , Marcus L. H. Van Nuland , Wai Kit Cheng , Chong-Jhoo Wang , Robert G. Tinger
CPC classification number: C07C7/144 , B01D61/007 , C07C7/005 , B01D2317/025
Abstract: Selective removal of non-aromatic hydrocarbons from a xylene isomerization process for para-xylene production is accomplished using a membrane unit positioned within a xylene recovery loop. The membrane unit may include a one-stage or multi-stage (e.g., two-stage) membrane system and may be configured to separate a membrane unit product stream from a non-aromatics rich stream, which can be removed from the xylene recovery loop. The membrane unit may have a xylene permeance of about 60 gm/m2/hr/psi and a xylene to non-aromatic permeance ratio of about 15.
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公开(公告)号：US20250128999A1
公开(公告)日：2025-04-24
申请号：US18690348
申请日：2022-09-12
Inventor： Robert G. Tinger , Jonathan F. Carpency , John S. Kennedy , Xiaobo Zheng
Abstract: Advantaged separation of xylene isomers may be realized by separating o-xylene and other components, such as styrene, from an aromatic hydrocarbon mixture comprising m-xylene and p-xylene. Separation of xylene isomers may comprise: providing an aromatic hydrocarbon mixture comprising at least o-xylene, m-xylene, and p-xylene; separating the aromatic hydrocarbon mixture into a first stream enriched in o-xylene and lean in m-xylene and p-xylene relative to the aromatic hydrocarbon mixture, and a second stream enriched in m-xylene and p-xylene and lean in o-xylene relative to the aromatic hydrocarbon mixture; and separating the second stream into a third stream enriched in p-xylene and lean in m-xylene relative to the second stream and a fourth stream comprising m-xylene.
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公开(公告)号：US11760706B2
公开(公告)日：2023-09-19
申请号：US17634956
申请日：2020-07-02
Inventor： Bhupender S. Minhas , Jeevan S. Abichandani , Marcus L. H. van Nuland , Wai Kit Cheng , Chong-Jhoo Wang , Robert G. Tinger
CPC classification number: C07C7/144 , B01D61/007 , C07C7/005 , B01D2317/025
Abstract: Selective removal of non-aromatic hydrocarbons from a xylene isomerization process for para-xylene production is accomplished using a membrane unit positioned within a xylene recovery loop. The membrane unit may include a one-stage or multi-stage (e.g., two-stage) membrane system and may be configured to separate a membrane unit product stream from a non-aromatics rich stream, which can be removed from the xylene recovery loop. The membrane unit may have a xylene permeance of about 60 gm/m2/hr/psi and a xylene to non-aromatic permeance ratio of about 15.
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