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91.发明授权公开(公告)号：US11654421B2
公开(公告)日：2023-05-23
申请号：US16947701
申请日：2020-08-13
Inventor： Chuansheng Bai , Majosefina Cunningham , Jihad M. Dakka , Preeti Kamakoti , Aruna Ramkrishnan , Anjaneya S. Kovvali , Anita S. Lee
IPC: B01J23/80 , C07C41/01 , B01J37/04 , B01J37/03 , B01J37/30 , B01J37/00 , B01J37/08 , B01J37/34 , B01J37/06 , B01J37/02 , B01J37/18 , B01J35/00 , B01J35/02 , B01J35/10 , B01J21/18
CPC classification number: B01J23/80 , B01J21/18 , B01J35/0013 , B01J35/026 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1061 , B01J37/0036 , B01J37/0236 , B01J37/031 , B01J37/04 , B01J37/06 , B01J37/088 , B01J37/18 , B01J37/30 , B01J37/348 , C07C41/01
Abstract: Methods of producing metal catalysts can include mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution; mixing the metal catalyst precursor solution and an alkali metal buffer solution to produce a precipitate; ion exchanging the alkali metal in the precipitate for a non-alkali cation to produce a low-alkali metal precipitate comprising 3 wt % or less alkali metal by weight of the precipitate on a dry basis; producing a powder from the low-alkali metal precipitate; and calcining the powder to produce a metal catalyst. Such metal catalysts may be useful in producing bifunctional catalyst systems that are useful in, among other things, converting syngas to dimethyl ether in a single reactor.
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公开(公告)号：US11650043B2
公开(公告)日：2023-05-16
申请号：US16948139
申请日：2020-09-04
Inventor： Bhaskar Prabhakar , Riccardo Conti
IPC: G01B11/06 , G01M15/05 , G01N21/956 , G01B11/30
CPC classification number: G01B11/0625 , G01B11/303 , G01M15/05 , G01N21/95607
Abstract: Systems and processes are provided for measuring carbon deposits on an engine. In some examples, a light source can be transmitted through a viewing window of an engine onto an area of an internal surface of the engine and reflected back through the viewing window and detected using an optical sensor. A topography of the area can be determined based, at least in part, on the reflected light source detected by the optical sensor and used to determine whether carbon deposits have increased, decreased, or remained constant on the area.
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93.发明授权公开(公告)号：US11649389B2
公开(公告)日：2023-05-16
申请号：US17221155
申请日：2021-04-02
Inventor： Peter A. Gordon , Thomas A. Petersen , Spencer A. White , Elizabeth L. Templeton-Barrett , Christian Mayer
Abstract: A collection of compressible particles. The compressible particles are intended to be used for attenuating pressure build-up within a confined volume such as a trapped annulus in a wellbore. Each of the compressible particles is fabricated to collapse in response to fluid pressure within the confined volume, and comprises carbon. Particularly, each of the particles comprises a plurality of peripheral openings, permitting an ingress of wellbore fluids in response to an increase in pressure within a trapped annulus. The collection of compressible particles together has a reversible volumetric expansion/contraction of ≥10% and up to 25% at pressures up to 10,000 psi. A method of attenuating annular pressure buildup within a wellbore using the collection of compressible particles is also provided.
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公开(公告)号：US11642619B2
公开(公告)日：2023-05-09
申请号：US16925963
申请日：2020-07-10
Inventor： Peter I. Ravikovitch , David Sholl , Charanjit Paur , Karl G. Strohmaier , Hanjun Fang , Ambarish R. Kulkarni , Rohan V. Awati , Preeti Kamakoti
CPC classification number: B01D53/0462 , B01D53/02 , B01D53/047 , B01D53/0476 , B01J20/18 , B01J20/3491 , C10L3/104 , B01D2253/1085 , B01D2253/34 , B01D2253/3425 , B01D2257/504 , C10L2290/12 , C10L2290/542 , Y02C20/40
Abstract: Methods of designing zeolite materials for adsorption of CO2. Zeolite materials and processes for CO2 adsorption using zeolite materials.
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公开(公告)号：US20230136307A1
公开(公告)日：2023-05-04
申请号：US18066369
申请日：2022-12-15
Inventor： Yijun LIU , Fritz PIERRE, Jr.
Abstract: A method for liquefying a feed gas stream. A refrigerant stream is cooled and expanded to produce an expanded, cooled refrigerant stream. Part or all of the expanded, cooled refrigerant stream is mixed with a make-up refrigerant stream in a separator, thereby condensing heavy hydrocarbon components from the make-up refrigerant stream and forming a gaseous expanded, cooled refrigerant stream. The gaseous expanded, cooled refrigerant stream passes through a heat exchanger zone to form a warm refrigerant stream. The feed gas stream is passed through the heat exchanger zone to cool at least part of the feed gas stream by indirect heat exchange with the expanded, cooled refrigerant stream, thereby forming a liquefied gas stream. The warm refrigerant stream is compressed to produce the compressed refrigerant stream.
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Patent Agency Ranking
公开(公告)号：US20230132325A1
公开(公告)日：2023-04-27
申请号：US18146830
申请日：2022-12-27
Inventor： Peter A. GORDON , Huaxing Daniel ZHOU
IPC: C09K8/68 , C09K8/80 , E21B43/267
Abstract: Proppant particulates are commonly used in hydraulic fracturing operations to maintain one or more fractures in an opened state following the release of hydraulic pressure. In complex fracture networks, it can be difficult to deposit proppant particulates fully within the fractures. In addition, low crush strengths may result in problematic fines formation. Polyaromatic hydrocarbons, commonly encountered in various refinery process streams, may serve as an advantageous precursor to proppant particulates. Polyaromatic hydrocarbons may undergo crosslinking under acid-catalyzed conditions in an aqueous solvent in the presence of a surfactant to form substantially spherical particulates that may serve as effective proppant particulates during fracturing operations. In situ formation of the proppant particulates may take place in some cases.
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97.发明申请公开(公告)号：US20230090327A1
公开(公告)日：2023-03-23
申请号：US17790592
申请日：2020-12-30
Inventor： Abhimanyu O. Patil , Satish Bodige , August W. Bosse , Ozcan Altintas
Abstract: Methods for preparing mixed polyamides, polyimides and polyamideimides under hydrothermal polymerization conditions are provided. The methods are based on suitable mixtures of poly carboxylic acids, poly carboxylic dianhydrides or poly carboxylic acid chloride anhydrides and polyamines and provide routes to low cost structural polymers useful in, for example, infrastructure applications.
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公开(公告)号：US11591212B2
公开(公告)日：2023-02-28
申请号：US16540277
申请日：2019-08-14
Inventor： Ramesh Gupta , Sumathy Raman , Hugo S. Caram , David C. Dankworth
Abstract: Systems and methods for molten media pyrolysis for the conversion of methane into hydrogen and carbon-containing particles are disclosed. The systems and methods include the introduction of seed particles into the molten media to facilitate the growth of larger, more manageable carbon-containing particles. Additionally or alternatively, the systems and methods can include increasing the residence time of carbon-containing particles within the molten media to facilitate the growth of larger carbon-containing particles.
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公开(公告)号：US11590481B2
公开(公告)日：2023-02-28
申请号：US17349989
申请日：2021-06-17
Inventor： Takayuki Iida , Jihad M. Dakka , Brandon M. Carcuffe , Aaron Peters
Abstract: Provided herein are methods for hydroisomerization of a hydrocarbon feedstock comprising contacting the hydrocarbon feedstock with hydrogen and a catalyst to yield a hydrocarbon product having an increase in branched hydrocarbons relative to the hydrocarbon feedstock. The present catalysts comprise a heteroatom-doped Beta zeolite having a trivalent cation as a framework metal oxide, an extra-framework species comprised of cerium and/or cobalt, and from 0.01 to 1.5 wt. % of a group VIII or VIB metal, or a combination thereof.
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100.发明申请公开(公告)号：US20230045239A1
公开(公告)日：2023-02-09
申请号：US17816463
申请日：2022-08-01
Inventor： Mark A. Diemund , Patrick L. Hanks , Sarah E. Feicht
IPC: C10L8/00
Abstract: Apparatuses including offshore porous floating bioreactors for containing algae water slurries in a saltwater environment. The porous floating bioreactors include a top portion and a bottom portion. At least a portion of the top portion is composed of a first transparent material and at least a portion of the bottom portion is porous. The offshore porous floating bioreactors may be deployed in a saltwater environment to facilitate one or both of cultivation or lipid induction of an algae water slurry contained therein.
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