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11.发明申请公开(公告)号：US20220305456A1
公开(公告)日：2022-09-29
申请号：US17607168
申请日：2020-05-26
Applicant: ExxonMobil Research and Engineering Company
Inventor： Joseph M. Falkowski , Yogesh V. Joshi , Mary S. Abdulkarim , Simon C. Weston
Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Some highly porous MOFs lack stability at ambient conditions. MOFs having ambient condition stability may comprise a plurality of metal clusters (M4O clusters, M=a metal), and a plurality of 4-(1H-pyrazol-4-yl)benzoate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. Methods for synthesizing these MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-(1H-pyrazol-4-yl)benzoic acid, and reacting the preformed metal cluster with the 4-(1H-pyrazol-4-yl)benzoic acid to form a MOF having an at least partially crystalline network structure with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-(1H-pyrazol-4-yl)benzoate.
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公开(公告)号：US11364479B2
公开(公告)日：2022-06-21
申请号：US16287152
申请日：2019-02-27
Applicant: ExxonMobil Research and Engineering Company
Inventor： Joseph M. Falkowski , Mobae Afeworki , David C. Calabro , Yi Du , Himanshu Gupta , Simon C. Weston
IPC: B01J20/22 , B01D53/04 , C01B37/00 , B01J20/30 , C01B39/02 , C07C7/13 , C10G25/03 , B01D53/02 , C10G25/00 , C01B39/00
Abstract: Disclosed are zeolitic imidazolate framework (ZIF) compositions in which at least a portion of the ligands in its shell have been exchanged with other ligands, and methods of making such shell-ligand-exchanged ZIFs. Also disclosed is the use of such shell-ligand-exchanged ZIFs in hydrocarbon separation processes.
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13.发明申请公开(公告)号：US20220153757A1
公开(公告)日：2022-05-19
申请号：US17310622
申请日：2020-03-30
Applicant: ExxonMobil Research and Engineering Company
Inventor： Joseph M. Falkowski , Carter W. Abney , Mary S. Abdulkarim , Aaron Sattler , Michele Paccagnini , Simon C. Weston
Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Crystallization may be problematic in some instances when secondary binding sites are present in the multidentate organic ligand. Multidentate organic ligands comprising first and second binding sites bridged together with a third binding site comprising a diimine moiety may alleviate these issues, particularly when using a preformed metal cluster as a metal source to form a MOF. Such MOFs may comprise a plurality of metal centers, and a multidentate organic ligand coordinated to the plurality of metal centers to define an at least partially crystalline network structure having a plurality of internal pores, and in which the multidentate organic ligand comprises first and second binding sites bridged together with a third binding site comprising a diimine moiety. Particular MOFs may comprise N,N′-di(1H-pyrazol-4-yl)ethane-1,2-diimine as a multidentate organic ligand.
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公开(公告)号：US10518257B2
公开(公告)日：2019-12-31
申请号：US15969062
申请日：2018-05-02
Applicant: ExxonMobil Research and Engineering Company
Inventor： Joseph M. Falkowski , Mobae Afeworki , Simon C. Weston
Abstract: A novel metal organic framework, EMM-33, is described having the structure of UiO-67 and comprising bisphosphonate linking ligands. EMM-33 has acid activity and is useful as a catalyst in olefin isomerization. Also disclosed is a process of making metal organic frameworks, such as EMM-33, by heterogeneous ligand exchange, in which linking ligands having a first bonding functionality in a host metal organic framework are exchanged with linking ligands having a second different bonding functionality in the framework.
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15.发明申请公开(公告)号：US20220388853A1
公开(公告)日：2022-12-08
申请号：US17772065
申请日：2020-07-22
Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Inventor： Allen W. Burton , Hilda B. Vroman , Joseph M. Falkowski , Eugene Terefenko , Michael A. Marella , Ross Mabon
Abstract: A method of making a molecular sieve may include: reacting a source selected from the group consisting of: a source of a tetrahedral element in the presence of a structure directing agent (SDA) selected from the group consisting of: Ar+-L-Ar, Ar+-L-Ar-L-Ar+, Ar+-L-Ar-L-NR3+, and ArAr+-L-Ar+Ar, where Ar+ is to a N-containing cationic aromatic ring, Ar is to a non-charged aromatic ring, L is a methylene chain of 3-6 carbon atoms, NR3+ is to a quaternary ammonium, and ArAr+ and Ar+Ar are a fused aromatic ring structure comprising both a N-containing cationic portion and a non-charged portion, to produce the molecular sieve.
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Patent Agency Ranking
公开(公告)号：US20220370992A1
公开(公告)日：2022-11-24
申请号：US17621281
申请日：2020-05-28
Applicant: ExxonMobil Research and Engineering Company
Inventor： Joseph M. Falkowski , Yogesh V. Joshi , Mary S. Abdulkarim , Simon C. Weston
Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry. Methods for synthesizing the MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-pyrazolecarboxylic acid, and reacting the preformed metal cluster with the 4-pyrazolecarboxylic acid to form a MOF having an at least partially crystalline network structure with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-pyrazolecarboxylate.
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公开(公告)号：US20220290057A1
公开(公告)日：2022-09-15
申请号：US17634962
申请日：2020-07-14
Applicant: ExxonMobil Research and Engineering Company
Inventor： Brandon J. O'Neill , Joseph M. Falkowski , Allen W. Burton , Scott J. Weigel
Abstract: A hydrocarbon feed stream, particularly one comprising heavier hydrocarbons, may be converted to valuable products such as motor gasoline and/or lubricating oil by employing one or more MOF catalysts, which may be prepared from a precursor metal-organic framework (MOF). A MOF catalyst may be prepared by exchanging one or more organic linking ligands of the precursor MOF for an organic linking ligand having a different acidity and/or electron-withdrawing properties, which, in turn, may affect catalytic activity.
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公开(公告)号：US11014067B2
公开(公告)日：2021-05-25
申请号：US16175708
申请日：2018-10-30
Applicant: The Regents of the University of California , ExxonMobil Research and Engineering Company
Inventor： Simon C. Weston , Joseph M. Falkowski , Jeffrey R. Long , Eugene J. Kim , Jeffrey D. Martell , Phillip J. Milner , Rebecca L. Siegelman
Abstract: Polyamines with lengths carefully tailored to the framework dimensions are appended to metal-organic frameworks such as Mg2(dobpdc) (dobpdc4-=4,4′-dioxidobiphenyl-3,3′-dicarboxylate) with the desired loading of one polyamine per two metal sites. The polyamine-appended materials show step-shaped adsorption and desorption profiles due to a cooperative CO2 adsorption/desorption mechanism. Several disclosed polyamine-appended materials exhibit strong ability to capture CO2 from various compositions. Increased stability of amines in the framework has been achieved using high molecular weight polyamine molecules that coordinate multiple metal sites in the framework. The preparation of these adsorbents as well as their characterization are provided.
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公开(公告)号：US10807875B2
公开(公告)日：2020-10-20
申请号：US16558659
申请日：2019-09-03
Applicant: ExxonMobil Research and Engineering Company
Inventor： Allen W. Burton , Hilda B. Vroman , Joseph M. Falkowski , Eugene Terefenko , Kanmi Mao
Abstract: The zeolite UTD-1 may be formed under hydrothermal synthesis conditions using a directing agent that does not include a metal atom therein. Methods for synthesizing the zeolite UTD-1 may comprise: combining at least a silicon atom source and a directing agent having a structure of in an aqueous medium; forming the zeolite in the aqueous medium under hydrothermal synthesis conditions, such that the zeolite has a framework silicate with a cationic portion of the directing agent occluded within pores or channels of the framework silicate; and isolating the zeolite from the aqueous medium. The zeolite has a powder x-ray diffraction pattern with at least the following 2θscattering angles: 6.0±0.12, 7.6±0.1, 14.66±0.15, 19.7±0.15, 21.27±0.15, 22.13±0.15, 22.61±0.15, and 24.42±0.10 for a borosilicate form zeolite, or 6.0±0.12, 7.6±0.15, 14.55±0.15, 19.64±0.15, 21.01±0.20, 21.90±0.20, 22.34±0.20, and 24.38±0.20 for an aluminosilicate form zeolite.
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公开(公告)号：US20190282997A1
公开(公告)日：2019-09-19
申请号：US16287152
申请日：2019-02-27
Applicant: ExxonMobil Research and Engineering Company
Inventor： Joseph M. Falkowski , Mobae Afeworki , David C. Calabro , Yi Du , Himanshu Gupta , Simon C. Weston
Abstract: Disclosed are zeolitic imidazolate framework (ZIF) compositions in which at least a portion of the ligands in its shell have been exchanged with other ligands, and methods of making such shell-ligand-exchanged ZIFs. Also disclosed is the use of such shell-ligand-exchanged ZIFs in hydrocarbon separation processes.
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