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公开(公告)号：US20240344785A1
公开(公告)日：2024-10-17
申请号：US18682842
申请日：2022-08-10
发明人： Antonio Ling , Andrei Gonioukh
CPC分类号： F28F19/06 , C10G9/002 , C10G9/16 , C10G9/18 , C23C4/06 , F28D21/00 , F28F9/18 , F28D2021/0022 , F28D2021/0059 , F28D2021/0075 , F28F2265/16
摘要： The present disclosure refers to transfer line exchangers with improved cooling capacity, equipped with a thermal spray coating in crackers and a method for the maintenance of transfer line exchangers with the help of a thermal spray coating. In some embodiments, the thermal spray coating is obtained from a spray material formed of Cr3C2 and a NiCr alloy. Preferably, the spray coating material comprises at least 60 wt.-%, preferably at least 70 wt.-% of Cr3C2, based on the total weight of the spray material.
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2.发明公开公开(公告)号：US20240287397A1
公开(公告)日：2024-08-29
申请号：US18646393
申请日：2024-04-25
申请人： Ecolab USA Inc.
CPC分类号： C10G75/04 , C10G9/16 , C23F15/005
摘要： Disclosed are sulfur-containing molybdenum complexes used in compositions and methods for inhibiting or reducing the deposition of foulant on equipment.
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公开(公告)号：US11939543B2
公开(公告)日：2024-03-26
申请号：US17264951
申请日：2019-07-09
发明人： Teng Xu , James R. Lattner , Frank Cheng-Yu Wang , Bryan Tiedemann , Renyuan Yu
CPC分类号： C10G9/16 , C10G9/36 , C10G45/28 , C10G69/06 , C10G75/04 , C10G2300/202 , C10G2300/301 , C10G2300/4081 , C10G2300/42 , C10G2300/44 , C10G2300/807 , C10G2400/18 , C10G2400/30
摘要： In an embodiment, a method for decreasing reactor fouling in a steam cracking process is provided. The method includes steam cracking a hydrocarbon feed to obtain a quench oil composition comprising a concentration of donatable hydrogen of 0.5 wt. % or more based on a total weight percent of the quench oil composition; exposing a steam cracker effluent flowing from a pyrolysis furnace to the quench oil composition to form a mixture; and fractionating the mixture in a separation apparatus to obtain a steam cracker tar. In another embodiment, a hydrocarbon mixture is provided. The hydrocarbon mixture includes a mid-cut composition.
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公开(公告)号：US20240059980A1
公开(公告)日：2024-02-22
申请号：US18267476
申请日：2021-12-30
发明人： Thomas T. Hirst , George Stephens , David Spicer
CPC分类号： C10G9/16 , C10B55/00 , C10B43/02 , C10B27/06 , C10G2300/1081 , C10G2300/1096 , C10G2300/1074 , C10G2300/107
摘要： Processes and systems for pyrolysing a hydrocarbon. In some examples, the process can include mixing a cooled hydrocarbon effluent and a cooled de-coking effluent to produce a combined effluent. The combined effluent can be introduced into an inlet conduit of a separator under conditions that provide >80 wt. % of the plurality of coke particles with a Stokes number of >10. From a first exit conduit of the separator >55 wt. % of the plurality of coke particles in the combined effluent can be removed, and from a second exit conduit of the separator a coke-lean hydrocarbon effluent that includes
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公开(公告)号：US11891581B2
公开(公告)日：2024-02-06
申请号：US18124230
申请日：2023-03-21
发明人： Gregory A. Cantley , Ross Vail , Kathleen Yaden , Ray Brooks
IPC分类号： C10G9/20 , B01D45/08 , C10G45/02 , C10G9/18 , B01J8/00 , C10B43/06 , C10G7/10 , C10G47/00 , C10G9/16
CPC分类号： C10G9/16 , B01D45/08 , B01J8/008 , C10B43/06 , C10G7/10 , C10G9/18 , C10G9/20 , C10G45/02 , B01J8/003 , C10G47/00 , C10G2300/107 , C10G2300/1077 , C10G2300/4031 , C10G2300/4056 , C10G2300/708
摘要： A coke catching apparatus for use in hydrocarbon cracking to assist in the removal of coke and the prevention of coke build up in high coking hydrocarbon processing units. The apparatus includes a grid device for preventing large pieces of coke from entering the outlet of the process refining equipment while allowing small pieces of coke to pass through and be disposed of. The coke catching apparatus can be easily disassembled to be removed from the refining process equipment and cleaned.
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公开(公告)号：US11859291B2
公开(公告)日：2024-01-02
申请号：US17214652
申请日：2021-03-26
发明人： Vasily Simanzhenkov , Hany Farag , Leslie Benum , Billy Santos , Kathleen Donnelly , Nobuyuki Sakamoto , Kunihide Hashimoto , Michael Gyorffy
IPC分类号： C22C38/08 , C22C19/05 , C23C8/14 , C23C8/18 , C23C8/02 , F28F19/06 , C22C30/00 , C21D1/72 , F28F1/12 , C21D6/00 , F28F1/26 , C10G9/16 , C10G9/20 , F28F1/40 , F28F21/08 , C22C38/18 , C22C38/40 , C22C19/03
CPC分类号： C23C8/18 , C10G9/16 , C10G9/203 , C21D1/72 , C21D6/004 , C22C19/05 , C22C19/053 , C22C19/058 , C22C30/00 , C23C8/02 , C23C8/14 , F28F1/12 , F28F1/26 , F28F1/40 , F28F19/06 , F28F21/083
摘要： A substrate steel of the comprising from 0.01 to 0.60 wt. % of La, from 0.0 to 0.65 wt. % of Ce; from 0.06 to 1.8 wt. % of Nb up to 2.5 wt. % of one or more trace elements and carbon and silicon may be treated in an oxidizing atmosphere to product a coke resistant surface coating of MnCr2O4 having a thickness up to 5 microns.
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公开(公告)号：US11807820B2
公开(公告)日：2023-11-07
申请号：US17431189
申请日：2020-03-19
摘要： In some examples, a flow of hydrocarbon feed can be introduced into a pyrolysis furnace that includes a first radiant coil and a second radiant coil. At least a portion of the hydrocarbon feed can be pyrolysed in the first radiant coil and the second radiant coil to produce a pyrolysis effluent and to deposit coke on an inner surface of each of the first radiant coil and the second radiant coil. The flow of the hydrocarbon feed can be decreased into the first radiant coil and the flow of the hydrocarbon feed into the second radiant coil can be maintained, wherein the flow of the hydrocarbon feed into the pyrolysis furnace can be decreased by about 10 vol. % to about 90 vol. %. A decoking feed including steam at a pressure of ≥690 kPag can be introduced into the first radiant coil of the pyrolysis furnace to remove at least a portion of the coke deposited on the inner surface of the first radiant coil.
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公开(公告)号：US11697775B2
公开(公告)日：2023-07-11
申请号：US17918732
申请日：2020-04-16
发明人： Rimon Vallavanatt
IPC分类号： B08B9/053 , F16L55/46 , C10B43/06 , C10G9/16 , F16L55/40 , B08B9/055 , C10B55/00 , F16L101/12
CPC分类号： C10G9/16 , B08B9/0551 , B08B9/0552 , B08B9/0557 , C10B43/06 , F16L55/40 , F16L55/46 , B08B2209/055 , C10B55/00 , F16L2101/12
摘要： Systems and methods for efficient on-line pigging of a coker furnace without interruption of the delayed coking process, which will save time and money during the delayed coking process. This system can be retrofitted to existing coker furnaces.
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公开(公告)号：US20230124266A1
公开(公告)日：2023-04-20
申请号：US17918732
申请日：2020-04-16
发明人： Rimon Vallavanatt
摘要： Systems and methods for efficient on-line pigging of a coker furnace without interruption of the delayed coking process, which will save time and money during the delayed coking process. This system can be retrofitted to existing coker furnaces.
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公开(公告)号：US20220243133A1
公开(公告)日：2022-08-04
申请号：US17629435
申请日：2020-07-27
申请人： BASF SE
发明人： Simeon SAUER , Daniel KECK , Eric JENNE , Alexander BADINSKI , Miriam Angela Anna HAHKALA , Bart BLANKERS , Hendrik DE WINNE , Britta Carolin BUCK
摘要： In order to predict the future evolution of a health-state of an equipment and/or a processing unit of a chemical production plant, e.g., a steam cracker, a computer-implemented method is provided, which builds a data-driven model for the future key performance indicator based on the key performance indicator of today, the processing condition of today, and the processing condition over a prediction horizon.
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