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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：US20230150901A1
公开(公告)日：2023-05-18
申请号：US17915945
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 present disclosure relates in its first aspect to a process of converting a stream comprising methane into chemicals, said process being remarkable in that it comprises the steps of providing a first stream (1, 5, 11) comprising methane, providing a second stream (79) which is a bromine-rich stream, putting into contact said first stream (15) with said second stream (79) to obtain a third stream (21) comprising at least unreacted methane, methyl bromide, dibromomethane, and hydrogen bromide and removing said dibromomethane from said third stream (21), to produce a dibromomethane stream (103) and a fourth stream (27) comprising unreacted methane, methyl bromide and hydrogen bromide; wherein the fourth stream (27) is converted into chemicals. In its second aspect, the present disclosure concerns an installation for carrying out the process of the first aspect.
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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：US20240124376A1
公开(公告)日：2024-04-18
申请号：US18220404
申请日：2023-07-11
摘要： The present disclosure relates in its first aspect to a process of converting a stream comprising methane into chemicals, said process being remarkable in that it comprises the steps of providing a first stream (1, 5, 11) comprising methane, providing a second stream (79) which is a bromine-rich stream, putting into contact said first stream (15) with said second stream (79) to obtain a third stream (21) comprising at least unreacted methane, methyl bromide, dibromomethane, and hydrogen bromide and removing said dibromomethane from said third stream (21), to produce a dibromomethane stream (103) and a fourth stream (27) comprising unreacted methane, methyl bromide and hydrogen bromide; wherein the fourth stream (27) is converted into chemicals. In its second aspect, the present disclosure concerns an installation for carrying out the process of the first aspect.
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公开(公告)号：US20240102178A1
公开(公告)日：2024-03-28
申请号：US18525767
申请日：2023-11-30
CPC分类号： C25B1/02 , C01B7/093 , C01B32/05 , C01B32/205 , C25B1/04 , C25B1/24 , C25B15/085 , C25B5/00
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：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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10.发明公开公开(公告)号：US20240327317A1
公开(公告)日：2024-10-03
申请号：US18710414
申请日：2022-11-14
CPC分类号： C07C5/46 , B01J8/1827 , B01J8/1836 , B01J8/42 , C07C5/42 , B01J2208/00398 , C07C2521/12 , C07C2523/04 , C07C2523/14
摘要： The disclosure concerns a process to perform a reaction of alkane transformation into olefins, said process comprising the steps of (a) providing a stream of light alkane-comprising feedstock with one or more alkanes and one or more oxidants selected from CO2 and/or COS; and providing at least one fluidized bed reactor comprising at least two electrodes and a bed comprising particles; (b) putting the particles of the bed in a fluidized state to obtain a fluidized bed; and (c) heating the fluidized bed to a temperature ranging from 600° C. to 1500° C. to conduct the reaction; the process is remarkable in that the step c) is performed by passing an electric current through the fluidized bed; the particles of the bed comprise electrically conductive particles, and in that, at least 10 wt. % of the particles are electrically conductive particles and have a resistivity ranging from 0.001 to 500 Ohm·cm at 800° C.
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