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公开(公告)号:US10711203B2
公开(公告)日:2020-07-14
申请号:US16320136
申请日:2017-08-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor: Federico Barrai , Elizabeth G. Mahoney , John S. Coleman , Dhaval A. Bhandari , Brian M. Weiss , Changmin Chun , Frank Hershkowitz
Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon gas upgrading. The pyrolysis is carried out in a reactor which includes at least one thermal mass having an open frontal area ≤55%.
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公开(公告)号:US09975820B2
公开(公告)日:2018-05-22
申请号:US15722961
申请日:2017-10-02
Applicant: ExxonMobil Chemical Patents Inc.
Inventor: Brian M. Weiss , Darryl D. Lacy , Scott J. Weigel
CPC classification number: C07C5/2737 , B01J29/7046 , B01J35/1014 , C07C4/18 , C07C2529/40 , C07C2529/70 , C07C15/08 , C07C15/04
Abstract: A process for the isomerization of a para-xylene depleted, meta-xylene rich stream under at least partially liquid phase conditions using ZSM-23 with an external surface area of at least 75 m2/g (indicating a small crystallite size), and a SiO2/Al2O3 ratio between 15 and 75 that produces a higher than equilibrium amount of para-xylene, i.e., more than about 24 wt % of para-xylene, based on the total amount of xylenes.
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公开(公告)号:US20170166498A1
公开(公告)日:2017-06-15
申请号:US15296878
申请日:2016-10-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor: Brian M. Weiss , Darryl D. Lacy , Scott J. Weigel
CPC classification number: C07C5/2737 , B01J29/7046 , B01J35/1014 , C07C4/18 , C07C2529/40 , C07C2529/70 , C07C15/08 , C07C15/04
Abstract: A process for the isomerization of a para-xylene depleted, meta-xylene rich stream under at least partially liquid phase conditions using ZSM-23 with an external surface area of at least 75 m2/g (indicating a small crystallite size), and a SiO2/Al2O3 ratio between 15 and 75 that produces a higher than equilibrium amount of para-xylene, i.e., more than about 24 wt % of para-xylene, based on the total amount of xylenes.
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公开(公告)号:US20200024524A1
公开(公告)日:2020-01-23
申请号:US16320136
申请日:2017-08-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor: Federico Barrai , Elizabeth G. Mahoney , John S. Coleman , Dhaval A. Bhandari , Brian M. Weiss , Changmin Chun , Frank Hershkowitz
Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon gas upgrading. The pyrolysis is carried out in a reactor which includes at least one thermal mass having an open frontal area ≤55%.
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公开(公告)号:US20180022669A1
公开(公告)日:2018-01-25
申请号:US15722961
申请日:2017-10-02
Applicant: ExxonMobil Chemical Patents Inc.
Inventor: Brian M. Weiss , Darryl D. Lacy , Scott J. Weigel
CPC classification number: C07C5/2737 , B01J29/7046 , B01J35/1014 , C07C4/18 , C07C2529/40 , C07C2529/70 , C07C15/08 , C07C15/04
Abstract: A process for the isomerization of a para-xylene depleted, meta-xylene rich stream under at least partially liquid phase conditions using ZSM-23 with an external surface area of at least 75 m2/g (indicating a small crystallite size), and a SiO2/Al2O3 ratio between 15 and 75 that produces a higher than equilibrium amount of para-xylene, i.e., more than about 24 wt % of para-xylene, based on the total amount of xylenes.
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公开(公告)号:US09809509B2
公开(公告)日:2017-11-07
申请号:US15296878
申请日:2016-10-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor: Brian M. Weiss , Darryl D. Lacy , Scott J. Weigel
CPC classification number: C07C5/2737 , B01J29/7046 , B01J35/1014 , C07C4/18 , C07C2529/40 , C07C2529/70 , C07C15/08 , C07C15/04
Abstract: A process for the isomerization of a para-xylene depleted, meta-xylene rich stream under at least partially liquid phase conditions using ZSM-23 with an external surface area of at least 75 m2/g (indicating a small crystallite size), and a SiO2/Al2O3 ratio between 15 and 75 that produces a higher than equilibrium amount of para-xylene, i.e., more than about 24 wt % of para-xylene, based on the total amount of xylenes.
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