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公开(公告)号：US12145908B2
公开(公告)日：2024-11-19
申请号：US18004200
申请日：2021-07-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Todd E. Detjen , Chong-Jhoo Wang , Robert G. Tinger
Abstract: A membrane separator comprising a membrane is used to separate various streams in processes for separating aromatic hydrocarbons from non-aromatic hydrocarbons. Such streams can be a lean-solvent stream, a rich-solvent stream, or a hydrocarbon stream comprising both aromatic and non-aromatic hydrocarbons. The membrane separator is advantageously used in combination with an extraction sub-system including a liquid-liquid distillation column and/or an extraction distillation column.
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公开(公告)号：US12037314B2
公开(公告)日：2024-07-16
申请号：US17631679
申请日：2020-08-11
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Robert G. Tinger , Hari Nair , Todd E. Detjen , Paul Podsiadlo , Travis D. Sparks
CPC classification number: C07C5/2708 , B01J29/42
Abstract: A liquid phase isomerization process comprising cofeeding molecular hydrogen at a feeding rate ≥100 ppm by weight can effectively convert a C8 aromatic hydrocarbon isomerization feed in the presence of an isomerization catalyst with a very low deactivation rate of the catalyst, even at high WHSV ≥5 hour−1.
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公开(公告)号：US20230295063A1
公开(公告)日：2023-09-21
申请号：US18004200
申请日：2021-07-07
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： Todd E. Detjen , Chong-Jhoo Wang , Robert G. Tinger
Abstract: A membrane separator comprising a membrane is used to separate various streams in processes for separating aromatic hydrocarbons from non-aromatic hydrocarbons. Such streams can be a lean-solvent stream, a rich-solvent stream, or a hydrocarbon stream comprising both aromatic and non- aromatic hydrocarbons. The membrane separator is advantageously used in combination with an extraction sub-system including a liquid—liquid distillation column and/or an extraction distillation column.
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公开(公告)号：US11332422B2
公开(公告)日：2022-05-17
申请号：US16605378
申请日：2018-04-17
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Robert G. Tinger
Abstract: Methods for the production of para-xylene include flowing a xylenes-containing stream comprising PX, meta-xylene (MX), and ortho-xylene (OX), to a first crystallization stage. In addition, the methods include lowering a temperature of the xylenes-containing stream to below the eutectic point of the xylenes-containing stream within the first crystallization stage to crystallize at least some of the PX and at least some of one of both of the MX and the OX within the xylenes-containing stream. Further, the methods include separating the xylenes-containing stream into a first crystallization effluent stream and a first filtrate stream.
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公开(公告)号：US11001544B2
公开(公告)日：2021-05-11
申请号：US15930215
申请日：2020-05-12
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jesus A. Ramos , Robert G. Tinger , Paul Podsiadlo , Todd E. Detjen , Kathleen M. Keville
IPC: C07C6/12
Abstract: Co-feeding sulfolane into a transalkylation reactor along with the aromatic hydrocarbon feed(s) can improve benzene purity of the benzene product stream produced from the transalkylation product mixture, especially at the beginning phase of a catalyst cycle.
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Patent Agency Ranking
公开(公告)号：US10450243B2
公开(公告)日：2019-10-22
申请号：US14861707
申请日：2015-09-22
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Xiaobo Zheng , Robert G. Tinger , Timothy P. Bender , Kathleen M. Keville , Jeffrey L. Andrews
Abstract: A process is provided for producing xylene by transalkylation including introducing sulfur into a reactor containing a catalyst system prior to first introduction of hydrocarbon feedstock into the reactor; introducing hydrocarbon feedstock into the reactor upon the concentration of sulfur downstream of the catalyst system meeting a predetermined sulfur breakthrough concentration; continuing sulfur introduction for a period of time after first introducing hydrocarbon feedstock into the reactor; reducing the concentration of sulfur introduced upon ΔT decreasing to or below a predetermined sulfur reduction threshold; and discontinuing sulfur introduction upon ΔT decreasing to or below a predetermined sulfur shutoff threshold.
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公开(公告)号：US09802181B2
公开(公告)日：2017-10-31
申请号：US15004662
申请日：2016-01-22
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Christine N. Elia , Shifang L. Luo , Hari Nair , Wenyih F. Lai , Robert G. Tinger
IPC: C07C6/12 , C07C4/18 , B01J29/80 , B01J35/10 , B01J29/22 , B01J29/24 , B01J29/44 , B01J29/46 , B01J8/04 , B01J37/18 , B01J29/67 , B01J29/68 , B01J29/74 , B01J29/76 , B01J35/00 , B01J35/02 , C01B39/26
CPC classification number: B01J29/80 , B01J8/04 , B01J29/22 , B01J29/24 , B01J29/44 , B01J29/46 , B01J29/67 , B01J29/68 , B01J29/74 , B01J29/7446 , B01J29/7453 , B01J29/7461 , B01J29/7476 , B01J29/7484 , B01J29/7492 , B01J29/76 , B01J29/7646 , B01J29/7653 , B01J29/7661 , B01J29/7676 , B01J29/7684 , B01J29/7692 , B01J35/002 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1023 , B01J35/1033 , B01J35/1052 , B01J35/108 , B01J37/0201 , B01J37/18 , B01J37/30 , B01J2208/027 , B01J2229/186 , B01J2229/42 , C01B39/265 , C07C4/18 , C07C6/126 , C07C15/06 , C07C2521/04 , C07C2529/18 , C07C2529/22 , C07C2529/24 , C07C2529/26 , C07C2529/40 , C07C2529/44 , C07C2529/46 , C07C2529/80 , C07C2529/87 , Y02P20/52
Abstract: Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst system comprises (a) a first catalyst bed comprising a first catalyst composition, said first catalyst composition comprising a zeolite having a constraint index of 3 to 12 combined (i) optionally with at least one first metal of Group 10 of the IUPAC Periodic Table, and (ii) optionally with at least one second metal of Group 11 to 15 of the IUPAC Periodic Table; and (b) a second catalyst bed comprising a second catalyst composition, said second catalyst composition comprising (i) a meso-mordenite zeolite, combined (ii) optionally with at least one first metal of Group 10 of the IUPAC Periodic Table, and (iii) optionally with at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said meso-mordenite zeolite is synthesized from TEA or MTEA and having a mesopore surface area of greater than 30 m2/g and said meso-mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.
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公开(公告)号：US20160122262A1
公开(公告)日：2016-05-05
申请号：US14861783
申请日：2015-09-22
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Chunshe Cao , Rachel M. Cook , Michel Molinier , Robert G. Tinger , Marcus L. van Nuland
IPC: C07C5/27
Abstract: A process is provided for the isomerization of aromatic hydrocarbons including contacting an aromatic hydrocarbon feedstream with a catalyst comprising a hydrogenation metal wherein sulfur is continuously introduced after catalyst start-up for an extended period of time at a concentration of no more than 56 ppm by weight of the aromatic hydrocarbon feedstream.
Abstract translation: 提供了芳族烃的异构化方法，包括使芳族烃进料流与包含氢化金属的催化剂接触，其中硫在催化剂启动后连续引入较长时间，浓度不超过56ppm（重量） 的芳烃进料流。
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公开(公告)号：US09321029B2
公开(公告)日：2016-04-26
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.
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公开(公告)号：US20160075618A1
公开(公告)日：2016-03-17
申请号：US14786740
申请日：2014-04-22
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： Timothy P. Bender , Xiaobo Zheng , Robert G. Tinger , Todd E. Detjen
CPC classification number: C07C6/06 , B01J19/245 , B01J29/44 , B01J29/48 , B01J29/7469 , B01J29/7869 , B01J29/80 , C07C2/864 , C07C4/06 , C07C4/12 , C07C4/18 , C07C6/126 , C07C7/14858 , C07C2529/40 , C07C2529/44 , C07C2529/70 , C07C2529/74 , Y02P20/52 , C07C15/08 , C07C15/02
Abstract: The invention relates to a transalkylation system to convert feedstreams containing benzene and/or toluene (C7− aromatic hydrocarbons) and feedstreams containing C9+ aromatic hydrocarbons into a product stream comprising xylenes.
Abstract translation: 本发明涉及将含有苯和/或甲苯（C 7 - 芳烃）的原料流和含有C 9+芳烃的原料流转化成包含二甲苯的产物流的烷基转移体系。
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