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公开(公告)号:US20250058270A1
公开(公告)日:2025-02-20
申请号:US18799121
申请日:2024-08-09
Inventor: Justin A. FEDERICI , Jayashree KALYANARAMAN , Eric R. SIMMERS , Eric B. SHEN , Clay R. SUTTON , Lisa S. BAUGH
Abstract: Systems and methods are provided for performing amine capture on a heated flue gas using multiple rotating packed beds. By integrating a series of rotating packed beds to perform cooling of the flue gas, removal of CO2 from the flue gas by contact with an aqueous amine, and washing of the gaseous effluent from CO2 removal step to remove any entrained amine, the equipment footprint and overall equipment volume required for CO2 capture can be significantly reduced. The integration of cooling, CO2 removal, and washing can be integrated into a series of packed beds in part by using different packing materials in the various packed beds.
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公开(公告)号:US20250033026A1
公开(公告)日:2025-01-30
申请号:US18784261
申请日:2024-07-25
Inventor: Scott WEIGEL , Wesley SATTLER , Allen BURTON , Keith HAJKOWSKI , Ryan DUGAN , Aaron PETERS
Abstract: Amorphous silica-alumina support materials are provided that can serve as supports for polyamines. The silica-alumina support materials have a combination of properties that unexpectedly allow supported polyamines to retain an increased or maximized amount of CO2 sorption capacity after incorporation of substantial amounts of the polyamine on the support material. This combination of properties can include having a high pore volume, a high ratio of mesopore volume to micropore volume, and a sufficiently high acidity. The ability to allow supported amine sorbents to retain additional CO2 sorption capacity is unexpected. Additionally, the relationship between having sufficiently high acidity and providing improved sorption capacity for a supported amine material is unexpected.
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公开(公告)号:US20250026999A1
公开(公告)日:2025-01-23
申请号:US18906765
申请日:2024-10-04
Inventor: Daniel E. KADLECEK , Keith H. KUECHLER , Paul P. WELLS , Michael J. LYNCH , Gregory LILIK
Abstract: Jet boiling range compositions are provided that include at least a portion of an isoparaffinic blend component, along with a method for making such a blend component. The highly isoparaffinic nature of the blend component can allow the isoparaffinic blend component to be used in combination with both conventional/mineral jet fuel boiling range fractions as well as non-traditional feeds (such as Fischer-Tropsch fractions) to form jet fuel fractions and/or jet fuel blending component fractions.
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公开(公告)号:US20250025866A1
公开(公告)日:2025-01-23
申请号:US18907836
申请日:2024-10-07
Inventor: Keith R. HAJKOWSKI , Wesley SATTLER , Michele A. WARREN
IPC: B01J35/00 , B01J21/04 , B01J23/44 , B01J23/46 , B01J23/755 , B01J23/96 , B01J35/57 , B01J37/00 , B01J38/12 , C01B3/40
Abstract: Palladium-based catalyst systems are provided for reforming of hydrocarbons, along with methods for using such catalyst systems. The catalyst systems can be deposited or otherwise coated on a surface or structure, such as a monolith, to achieve improved activity and/or structural stability. It has been discovered that loss of catalytic activity for reforming over time can be reduced or minimized for palladium-based catalyst system by operating the reactor/performing a reaction cycle so that the portion of the reaction environment containing the palladium-based catalyst system is not exposed to oxidizing conditions at temperatures between 600° C. and 900° C. Optionally, the reactor can also be operated/the reaction cycle can also be designed so that during a reforming cycle, the peak temperature in the portion of the reaction environment containing the palladium-based catalyst system is 1300° C. or less.
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公开(公告)号:US20250025855A1
公开(公告)日:2025-01-23
申请号:US18910441
申请日:2024-10-09
Inventor: Ross MABON , Michael A. Marella , Allen W. Burton , Hilda B. Vroman , Kirk D. Schmitt , Tom Willhammar , Hongyi Xu , Xiaodong Zou , Simon C. Weston
Abstract: This disclosure relates to EMM-41 materials, methods for making it, and processes for its use. This disclosure also relates to the structure directing agents used in the methods for making the EMM-41 material as well as the synthesis method used to prepare such structure directing agents.
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公开(公告)号:US20250025854A1
公开(公告)日:2025-01-23
申请号:US18910399
申请日:2024-10-09
Inventor: Ross MABON , Michael A. Marella , Allen W. Burton , Hilda B. Vroman , Kirk D. Schmitt , Tom Willhammar , Hongyi Xu , Xiaodong Zou , Simon C. Weston
Abstract: This disclosure relates to EMM-41 materials, methods for making it, and processes for its use. This disclosure also relates to the structure directing agents used in the methods for making the EMM-41 material as well as the synthesis method used to prepare such structure directing agents.
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17.
公开(公告)号:US20250023045A1
公开(公告)日:2025-01-16
申请号:US18349227
申请日:2023-07-10
Applicant: ExxonMobil Technology and Engineering Company , The Trustees of the University Of Pennsylvania
Inventor: Manesh Gopinadhan , Stuart E. Smith , Eric B. Sirota , Bharath Natarajan , Chinedum O. Osuji , Yuma Morimitsu , Kazem V. Edmond
IPC: H01M4/583 , H01M4/62 , H01M10/0525
Abstract: Disclosed embodiments may include a material having a composition including a mesophase pitch material between approximately 5.0% to 95.0% and having a viscosity of between approximately 0.01 to 102 Pascal seconds (Pa·s) in a temperature range of between approximately Ts
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公开(公告)号:US20250020048A1
公开(公告)日:2025-01-16
申请号:US18748437
申请日:2024-06-20
Inventor: Ripudaman MANCHANDA , Timothy G. BENISH
Abstract: A method involves propagating hydraulic fractures in a reservoir. Such method includes creating a low pressure region in an attractor well. The attractor well is proximate to an area in which hydraulic fractures are desired. The method also includes initiating a hydraulic fracturing operation at a treatment well. The hydraulic fracturing operation is initiated so that a fracture network created by the hydraulic fracturing operation is drawn to propagate toward the low pressure region of the attractor well.
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公开(公告)号:US20250011669A1
公开(公告)日:2025-01-09
申请号:US18893400
申请日:2024-09-23
Inventor: Xiaochun Xu , Madelyn M. Evans , Daniel E. Kadlecek , Paul P. Wells
Abstract: A jet boiling range composition is provided with an unexpected distribution of carbon chain lengths for the hydrocarbons and paraffins in the composition. The hydrocarbon composition corresponds to a jet boiling range composition that includes 40 wt % or more of hydrocarbons and/or paraffins that have carbon chain lengths of 17 carbons or 18 carbons. Additionally or alternately, the hydrocarbon composition can contain 45 wt % or less of C14-C17 hydrocarbons and/or paraffins. This unexpected distribution of carbon chain lengths in a jet boiling range composition can be achieved for a composition that has a freeze point of −40° C. or lower and a flash point of 38° C. or higher. Optionally, the jet boiling range composition can also have a T10 distillation point of 205° C. or less (such as down to 150° C.) and a final boiling point of 300° C. or less
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公开(公告)号:US20240425759A1
公开(公告)日:2024-12-26
申请号:US18274021
申请日:2022-01-27
Inventor: Guang Cao , James R. Bielenberg , August W. Bosse , David C. Dankworth , Sumathy Raman , Michael Siskin
Abstract: Methods are provided for upgrading of pyrolysis carbon in order to allow for conversion of the pyrolysis carbon into higher value products. Instead of attempting to convert methane into a high value carbon product (such as carbon nanotubes) and H2 in a single reaction step, pyrolysis conditions can be used to form H2 and pyrolysis carbon. The pyrolysis carbon can then be treated in order to convert the pyrolysis carbon (H to C atomic ratio of less than 0.20) into a product with a higher hydrogen content (H to C atomic ratio of 0.25-0.9 or 2.0-7.0 wt % H). The treatment can correspond to exposing the pyrolysis carbon with hydrogen in the presence of a catalyst, exposing the pyrolysis carbon to conditions for alkylation, or a sequential combination thereof. This can convert the pyrolysis carbon into heavy hydrocarbon products that are resin-like solids at room temperature.
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