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公开(公告)号：US20220411350A1
公开(公告)日：2022-12-29
申请号：US17777924
申请日：2020-11-20
摘要： The present disclosure concerns a process for converting methyl halides to ethylene and propylene, said process comprising the steps of (a) providing a feedstream comprising methyl halides; (b) providing a first and second catalyst composition, said second catalyst composition comprising a cracking catalyst; (c) contacting said feedstream with said first catalyst composition in a first reaction zone under first reaction conditions to provide a first product stream; and (d) subjecting at least a part of said first product stream to an Olefin Catalytic Cracking with said second catalyst composition in a second reaction zone under second reaction conditions to provide a second product steam. The process is remarkable in that said step (c) is performed under 400° C., and in that said first catalyst composition comprises molecular sieves with a Si/Al atomic between 2 and 18 and with a plurality of pores with a shape of an 8-membered ring or less.
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公开(公告)号：US20220356127A1
公开(公告)日：2022-11-10
申请号：US17777829
申请日：2020-11-20
发明人： Nikolai NESTERENKO , Gleb VERYASOV , Raoul DETHIER
摘要： The present disclosure relates to a process for converting one or more alkyl halides to acyclic C3-C6 olefins, said process comprising the steps of (a) providing a feedstream comprising one or more alkyl halides; (b) providing a catalyst composition; and (c) contacting said feedstream with said catalyst composition under reaction conditions. The process is remarkable in that said process further comprises a step of steaming said catalyst composition before the step (c) and in that said catalyst composition comprises one or more zeolites and a binder, wherein said one or more zeolites comprise at least one 10-membered ring channel. The present disclosure further relates to the use of a catalyst composition in said process, said catalyst composition comprising one or more zeolites and a binder, wherein said catalyst composition is steamed before use.
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公开(公告)号：US20230118848A1
公开(公告)日：2023-04-20
申请号：US17915958
申请日：2021-03-29
发明人： Romuald COUPAN , Nikolai NESTERENKO , Gleb VERYASOV , Zhongyi John DING , Jingsong ZHOU , Miguel A.F. SANTOS , Mircea G CRETOIU
摘要： The disclosure relates in its first aspect to a process of conversion of a gaseous stream comprising methane into hydrogen (51) and carbon (25), the process is remarkable in that it comprises a step (a) of providing a first gaseous stream (3, 7); a step (b) of bromination and synthesis in which the first gaseous stream (3, 7) is put in contact with a second stream (53) comprising bromine resulting in the formation of a third stream (15) comprising methyl bromides and hydrogen bromide, and of a fourth stream (25) comprising carbon including graphite and/or carbon black; a step (c) of separation performed on the third stream (15) to recover a hydrogen bromide-rich stream (41) which is then oxidized in a step (d) to produce a stream (51) comprising hydrogen. The second aspect relates to the installation for performing the process of the first aspect and the third aspect concerns the use of bromine in such process.
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公开(公告)号：US20230002296A1
公开(公告)日：2023-01-05
申请号：US17777787
申请日：2020-11-20
发明人： Nikolai NESTERENKO , Gleb VERYASOV , Raoul DETHIER
摘要： The present disclosure concerns a process for converting alkyl halides to ethylene and propylene, said process comprising the steps of (a) providing a feedstream comprising alkyl halides; (b) providing a first and second catalyst composition, said second catalyst composition comprising a cracking catalyst; (c) contacting said feedstream with said first catalyst composition in a first reaction zone under first reaction conditions to provide a first product stream, and (d) subjecting at least a part of said first product stream to an Olefin Catalytic Cracking with said second catalyst composition in a second reaction zone under second reaction conditions to provide a second product steam. The process is remarkable in that it further comprises a step of steaming said first catalyst composition before the step (c) and in that said first catalyst composition comprises zeolites and a binder, wherein said zeolites comprise at least one 10-membered ring channel.
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公开(公告)号：US20220356128A1
公开(公告)日：2022-11-10
申请号：US17777865
申请日：2020-11-20
发明人： Nikolai NESTERENKO , Gleb VERYASOV , Raoul DETHIER
摘要： The present disclosure relates to a process for converting one or more methyl halides to acyclic C3-C6 olefins, said process comprising the steps of (a) providing a feedstream comprising one or more methyl halides; (b) providing a catalyst composition; and (c) contacting said feedstream with said catalyst composition under reaction conditions. The process is remarkable in that said reaction conditions include a reaction temperature below 400° C., and in that said catalyst composition comprises one or more molecular sieves with a Si/Al atomic ratio ranging from 2 to 18 and wherein said one or more molecular sieves comprise a plurality of pores, wherein said pores have a shape of an 8-membered ring or less.
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公开(公告)号：US20220363556A1
公开(公告)日：2022-11-17
申请号：US17768391
申请日：2020-10-13
发明人： Svetlana MINTOVA , Jean-Pierre GILSON , Nikolai NESTERENKO , Delphine MINOUX , Cindy AQUINO , Julien GRAND , Florent DUBRAY
IPC分类号： C01B39/48
摘要： The present disclosure relates to a novel staged-synthesis method for introduction of various metals in the structure of zeolite frameworks by isomorphous substitution. This new method is based on a hydrothermal synthesis in which the metal addition to the precursor suspensions (gel) is delayed. This so-called “staged-synthesis method” allows to obtain nanosized silanol highly homo- geneous crystalline zeolite structures with a control of the metal location.
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7.发明申请公开(公告)号：US20220356129A1
公开(公告)日：2022-11-10
申请号：US17770188
申请日：2020-10-26
发明人： Florent DUBRAY , Svetlana MINTOVA , Jean-Pierre GILSON , Stanislav KONNOV , Stijn VAN DAELE , Nikolai NESTERENKO
摘要： Process for the conversion of non-oxidative coupling of methane to ethylene, under non-oxidative conditions, comprising: providing a first stream containing at least 50 vol. % of methane based on the total volume of said first stream; providing a catalyst; putting in contact said first stream with said catalyst at a weight hour space velocity ranging from 0.5 to 100 h−1, a temperature ranging from 500° C. to 1100° C. and a pressure ranging from 0.1 MPa to 5 Mpa in the absence of oxygen; recovering a second stream containing unconverted methane if any, ethylene and hydrocarbons having at least 2 carbon atoms. Said process is remarkable in that said catalyst is a synthetic zeolite material, containing at least one metal M with silicon to metal M molar ratio Si/M as determined by inductively coupled plasma optical emission spectrometry ranging from 100 to 65440 and in that said metal M is incorporated inside of the zeolite tetrahedral sites.
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公开(公告)号：US20220371904A1
公开(公告)日：2022-11-24
申请号：US17768590
申请日：2020-10-13
发明人： Cindy AQUINO , Svetlana MINTOVA , Jean-Pierre GILSON , Florent DUBRAY , Delphine MINOUX , Julien GRAND , Nikolai NESTERENKO
摘要： The present disclosure relates to a novel method for introducing various metals in the structure of zeolite frameworks by isomorphous substitution. This new method is based on a hydrothermal reaction of the metal with the zeolite. This method allows obtaining zeolite with a structure and with control of the metal location.
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