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公开(公告)号：US20220002215A1
公开(公告)日：2022-01-06
申请号：US17297392
申请日：2019-11-14
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul Hamilton , Terrance C. Osby , Brian W. Heins
Abstract: Linear alpha olefins (LAOS) may be formed by oligomerization of ethylene in the presence of a Ziegler-type catalyst. The presence of trace water during oligomerization can result in unwanted formation of insoluble higher oligomers or polymer. Methods for limiting the presence of water during ethylene oligomerization reactions may include separating residual ethylene and 1-butene from an LAO product stream to form a higher LAO-enriched stream comprising C6+ LAOs, separating 1-hexene as an overhead stream from the higher-LAO enriched stream using a first distillation column, obtaining separated solvent as a side stream from the first distillation column or as a side stream from a first of one or more downstream distillation columns, and returning the separated solvent to a reactor in a recycled solvent stream. The recycled solvent stream passes through one or more driers before returning to the reactor.
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Patent Agency Ranking
公开(公告)号：US09434661B2
公开(公告)日：2016-09-06
申请号：US14642000
申请日：2015-03-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： John Di-Yi Ou , Glenn A. Heeter , Shifang L. Luo , Indulis J. Eilands , Jeevan S. Abichandani , Allen S. Gawlik , Mark W. Nash , Terrance C. Osby , Robert G. Tinger
CPC classification number: C07C2/864 , B01J19/24 , B01J19/245 , B01J2219/24 , C07C2/865 , C07C5/2729 , C07C7/12 , C07C7/13 , C07C7/14 , C07C2529/85 , C07C15/08
Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
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公开(公告)号：US20150375195A1
公开(公告)日：2015-12-31
申请号：US14849918
申请日：2015-09-10
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Glenn A. Heeter , John D. Ou , Allen S. Gawlik , Terrance C. Osby , Jeevan S. Abichandani , Robert G. Tinger , Indulis J. Eilands , Shifang L. Luo
CPC classification number: B01J19/24 , B01J19/245 , B01J2219/00006 , B01J2219/24 , C07C2/864 , C07C2/865 , C07C7/13 , C07C7/148 , C07C2529/40 , C07C2529/70 , Y02P20/52 , C07C15/08
Abstract: The invention relates to removal of styrene from hydrocarbon mixtures, and more particularly, removal of styrene from hydrocarbon mixtures containing higher than equilibrium paraxylene concentrations.
Abstract translation: 本发明涉及从烃混合物中除去苯乙烯，更具体地说，从含有高于平衡对二甲苯浓度的烃混合物中除去苯乙烯。
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公开(公告)号：US09205401B2
公开(公告)日：2015-12-08
申请号：US14642042
申请日：2015-03-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： John Di-Yi Ou , Glenn A. Heeter , Shifang L. Luo , Indulis J. Eilands , Jeevan S. Abichandani , Allen S. Gawlik , Mark W. Nash , Terrance C. Osby , Robert G. Tinger
IPC: B01J19/24
CPC classification number: C07C2/864 , B01J19/24 , B01J19/245 , B01J2219/24 , C07C2/865 , C07C5/2729 , C07C7/12 , C07C7/13 , C07C7/14 , C07C2529/85 , C07C15/08
Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
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公开(公告)号：US09012711B2
公开(公告)日：2015-04-21
申请号：US13875402
申请日：2013-05-02
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： John Di-Yi Ou , Glenn A. Heeter , Shifang L. Luo , Indulis J. Eilands , Jeevan S. Abichandani , Allen Scott Gawlik , Mark W. Nash , Terrance C. Osby , Robert G. Tinger
IPC: C07C7/13
CPC classification number: C07C2/864 , B01J19/24 , B01J19/245 , B01J2219/24 , C07C2/865 , C07C5/2729 , C07C7/12 , C07C7/13 , C07C7/14 , C07C2529/85 , C07C15/08
Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
Abstract translation: 本发明涉及芳烃流的纯化，包括通过与合适的吸附剂接触从包含芳族烃混合物，特别是包含高于平衡对二甲苯的芳族烃混合物的工艺流中选择性除去苯酚，以提供具有 苯酚浓度低于所述工艺流。
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公开(公告)号：US20130324780A1
公开(公告)日：2013-12-05
申请号：US13875402
申请日：2013-05-02
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： John Di-Yi Ou , Glenn A. Heeter , Shifang L. Luo , Indulis J. Eilands , Jeevan S. Abichandani , Allen Scott Gawlik , Mark W. Nash , Terrance C. Osby , Robert G. Tinger
IPC: C07C7/13
CPC classification number: C07C2/864 , B01J19/24 , B01J19/245 , B01J2219/24 , C07C2/865 , C07C5/2729 , C07C7/12 , C07C7/13 , C07C7/14 , C07C2529/85 , C07C15/08
Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
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