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公开(公告)号：US20240124375A1
公开(公告)日：2024-04-18
申请号：US18486627
申请日：2023-10-13
Applicant: LUMMUS TECHNOLOGY LLC
Inventor： William Scott Neifert , Sunil Panditrao , Kandasamy Sundaram , Gary Podrebarac
IPC: C07C5/42
CPC classification number: C07C5/42
Abstract: A process for dehydrogenating a paraffinic feedstock, producing olefins and/or dienes. The process includes feeding a paraffinic hydrocarbon feedstock comprising one or more C2+ paraffinic hydrocarbons and a fuel gas stream to a dehydrogenation reactor preheater, combusting the fuel gas stream in the dehydrogenation reactor preheater and heating the paraffinic hydrocarbon feedstock to a temperature in the range of 500-650° C., producing a heated paraffinic feedstock, feeding the heated paraffinic feedstock to a first dehydrogenation reactor operating in a reaction mode and containing an active dehydrogenation catalyst and at least one first electrical heating element, heating the heated paraffinic feedstock in the first dehydrogenation reactor using the at least one first electrical heating element, and contacting the heated paraffinic feedstock with the active dehydrogenation catalyst and the at least one electrical heating element thereby producing an olefinic product stream comprising one or more olefins.
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公开(公告)号：US20240416322A1
公开(公告)日：2024-12-19
申请号：US18673834
申请日：2024-05-24
Applicant: Lummus Technology LLC
Inventor： Gary Podrebarac , Zan Liu , Khalid Azzam , Daniel Rosenberg
Abstract: Catalytic material having catalysts supported by hibonite-type supports are provided. The catalytic materials include a first catalytic material comprising an oxidative coupling methane catalyst for oxidative coupling of methane (OCM) and a second selective oxidation catalytic material comprising a selective oxidation catalyst that preferentially oxidizes hydrogen and carbon monoxide over methane. Systems comprising the first and second catalytic materials for performing an OCM reaction using a low temperature feedstock gas mixture and methods of using the same to prepare C2+ compounds are also provided.
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公开(公告)号：US20230061675A1
公开(公告)日：2023-03-02
申请号：US17898715
申请日：2022-08-30
Applicant: Lummus Technology LLC
Inventor： Gary Podrebarac , Zan Liu , Khalid Azzam , Daniel Rosenberg
IPC: C07C2/84
Abstract: A method of performing an oxidative coupling of methane (OCM) reaction to produce C2+ compounds using a low temperature gas mixture feed is provided. The method includes introducing a gas mixture feed containing methane, oxygen, hydrogen, and carbon monoxide at a temperature of less than or equal to 300° C. to an inlet of an OCM reactor, which contains a combustion catalyst and an OCM catalyst. At least a portion of the gas mixture feed is combusted using the combustion catalyst to generate a heated gas mixture having a temperature of at least 450° C. The heated gas mixture contacts the OCM catalyst to initiate an OCM reaction and produce an OCM effluent that includes C2+ compounds. A system for performing an OCM reaction using a low temperature feedstock gas mixture is also provided.
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公开(公告)号：US12227466B2
公开(公告)日：2025-02-18
申请号：US17898715
申请日：2022-08-30
Applicant: Lummus Technology LLC
Inventor： Gary Podrebarac , Zan Liu , Khalid Azzam , Daniel Rosenberg
IPC: C07C2/84
Abstract: A method of performing an oxidative coupling of methane (OCM) reaction to produce C2+ compounds using a low temperature gas mixture feed is provided. The method includes introducing a gas mixture feed containing methane, oxygen, hydrogen, and carbon monoxide at a temperature of less than or equal to 300° C. to an inlet of an OCM reactor, which contains a combustion catalyst and an OCM catalyst. At least a portion of the gas mixture feed is combusted using the combustion catalyst to generate a heated gas mixture having a temperature of at least 450° C. The heated gas mixture contacts the OCM catalyst to initiate an OCM reaction and produce an OCM effluent that includes C2+ compounds. A system for performing an OCM reaction using a low temperature feedstock gas mixture is also provided.
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