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公开(公告)号：US20250035379A1
公开(公告)日：2025-01-30
申请号：US18716829
申请日：2023-01-17
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Thomas T. Hirst , David Spicer , Tim W. Hopkins , Samuel L. Almeida , Mark A. Rooney
Abstract: The present disclosure relates to methods of constructing a furnace facility including determining transport parameters including vessel parameters. The method can include determining operating site parameters of an operating site and designing one or more modules based on the vessel and operating site parameters. The modules can be sized to provide length, width, height, weight of the modules within allowance of the vessel and operating site parameters. The modules can be constructed at a module fabrication site before transporting to the operating site via a vessel. One or more modules can have one or more furnace components, and/or one or more modules can have one or more furnace.
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公开(公告)号：US20250011659A1
公开(公告)日：2025-01-09
申请号：US18706952
申请日：2022-11-29
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mark A. Rooney , Richard Young , David Spicer , William A. Aslaner
IPC: C10G9/36
Abstract: The present disclosure provides processes and apparatuses for cracking a hydrocarbon-containing feed. The process includes introducing the hydrocarbon-containing feed to a desalter preheat train having an effluent interchanger. The process includes directing a portion of the hydrocarbon-containing feed from in the desalter preheat train to a feed inlet of a convection section of a steam cracking furnace. The process includes combusting fuel proximate to a plurality of burners that provide thermal energy to a radiant section and a convection section of the steam cracking furnace. The hydrocarbon-containing feed is in an operating mode in the convection section to obtain a heated feed mixture. The process includes separating a bottoms effluent from the heated feed mixture of the convection section in a separator. The process includes cooling the bottoms effluent in a heat exchanger using boiler feed water.
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公开(公告)号：US11471830B2
公开(公告)日：2022-10-18
申请号：US17299036
申请日：2019-12-12
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Darian E. Orozco , William A. Aslaner , Mark A. Rooney
IPC: B01D53/86
Abstract: Chromium particulate emissions in flue gas can be reduced or minimized by incorporating a thin layer bed of a catalyst within the flue gas flow path of a furnace, boiler, or other furnace environment that includes Cr-containing surfaces. The thin layer bed of catalyst can correspond to, for example, a honeycomb monolith with catalyst supported on the monolith surface, so as to provide a high contact area while forcing all of the flue gas to pass through the catalyst bed. The honeycomb monolith structure and the depth of the bed can be selected to provide a reduced or minimized pressure drop across the catalyst bed, such as a pressure drop of 0.25 kPa (1.0 inches of water) or less. Exposing the Cr-containing flue gas to the thin layer catalyst bed can result in a treated flue gas with a lower content of Cr.
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公开(公告)号：US12187967B2
公开(公告)日：2025-01-07
申请号：US17768663
申请日：2020-09-16
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Reyyan Koc-Karabocek , James R. Lattner , William A. Aslaner , David Spicer , Mark A. Rooney
Abstract: Processes and systems for quenching an effluent. In certain embodiments, the process can include contacting a pyrolysis effluent and a first quench medium to produce a first quenched effluent. A bottoms stream that can include tar and an overhead stream that can include ethylene and propylene can be obtained from the first quenched effluent. The first quench medium can include a first portion of the bottoms stream that can include a first portion of the tar. In certain embodiments, the process can also include hydroprocessing a second portion of the bottoms stream that can include a second portion of the tar to produce a hydroprocessed product. A hydroprocessed bottoms stream can be obtained from the hydroprocessed product. In certain embodiments, the process can also include contacting at least a portion of the hydroprocessed bottoms stream and the first portion of the bottoms stream to produce the first quench medium.
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5.发明授权公开(公告)号：US11255242B2
公开(公告)日：2022-02-22
申请号：US16975367
申请日：2019-02-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mark A. Rooney , Venkatesh Subramania , Robert C. Thiets
Abstract: Centralizing the handling and manipulating of vaporization medium to a single subsystem that supplies multiple ammonia vaporizers allows for efficient and effective production of a corresponding vaporized ammonia stream containing a controlled quantity of ammonia. These vaporized ammonia streams can then be used in conjunction with ammonia-consuming devices to reduce NOx in NOx-containing exhaust streams from multiple furnaces.
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Patent Agency Ranking
公开(公告)号：US20240166953A1
公开(公告)日：2024-05-23
申请号：US18550397
申请日：2022-04-04
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mark A. Rooney , David Spicer , Bryan D. McVicker
CPC classification number: C10G9/206 , C10G9/36 , C10G2300/4006 , C10G2300/4037 , C10G2300/708
Abstract: Processes and systems for steam cracking hydrocarbon feeds. The process can include introducing a first hydrocarbon feed into radiant coil(s) disposed within a first segment of a firebox to produce a first steam cracker effluent having a first coil outlet temperature. A second hydrocarbon feed can be introduced into radiant coil(s) disposed within a second segment of the firebox to produce a second steam cracker effluent having a second coil outlet temperature. The first and second segments can each include one or more burners providing heat thereto. The burner(s) in each segment can be operated at substantially the same firing rate such that an amount of heat produced by each burner can be substantially the same. A feed rate of the first hydrocarbon feed can be controlled based, at least in part, on a composition of the first hydrocarbon feed and the first coil outlet temperature.
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公开(公告)号：US20240067884A1
公开(公告)日：2024-02-29
申请号：US18270159
申请日：2022-01-05
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： Mark A. Rooney , David K. Marsh , Richard Young , David Spicer , William A. Aslaner , Jie Yang
CPC classification number: C10G9/206 , B01J19/0013 , B01J19/1831 , C10G9/36 , B01J2219/00058 , B01J2219/00159 , C10G2300/708 , C10G2300/807
Abstract: The present disclosure relates to processes, methods, systems, and apparatus for steam cracking hydrocarbon in a pyrolysis furnace having a convection zone and a radiant zone. The convection zone includes three heat exchangers in series with a serpentine arrangement. A fluid source is disposed each heat exchanger to provide steam into the heat exchangers. The present disclosure further relates to a process of adjusting the stream flow rate for each fluid source to control operating conditions such as flue gas temperature, stack temperatures, and temperatures of other components of the furnace.
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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
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mark A. Rooney , Christopher Dillard
Abstract: 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：US20230013408A1
公开(公告)日：2023-01-19
申请号：US17861168
申请日：2022-07-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Thomas T. Hirst , Mark A. Rooney
Abstract: A hybrid steam cracking process including, in addition to combusting a fuel in a steam cracker furnace to provide thermal energy to the radiant and convection sections, heating a segment of an external furnace piping using an electrical heating device. The external furnace piping can include, e.g., the hydrocarbon-containing feed inlet piping, the cross-over piping, the radiant section inlet piping, and the radiant section outlet piping. Capacity and selectivity of the steam cracker furnace can be enhanced compared to conventional steam cracking process without electrical heating. The technology can be conveniently deployed in existing conventional steam cracking facilities.
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公开(公告)号：US20220340822A1
公开(公告)日：2022-10-27
申请号：US17782680
申请日：2020-12-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mark A. Rooney , Thomas T. Hirst
Abstract: Processes, systems, and apparatus are provided for using a common working fluid for one or more turbines for processing a process gas and for the furnace for the pyrolysis process used to produce the process gas. The turbine(s) are operated based on a modified Allam cycle to produce power for operating one or more compressors and/or refrigerators involved in processing of the process gas while producing a reduced or minimized amount of CO2 that is released as a low-pressure gas phase product. Integrating the pyrolysis furnace with the working fluid loop can provide further benefits.
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