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1.发明授权公开(公告)号：US11987547B2
公开(公告)日：2024-05-21
申请号：US17622412
申请日：2020-06-12
IPC分类号： C07C5/333
CPC分类号： C07C5/3337 , C07C2523/08 , C07C2523/42 , C07C2523/62
摘要： According to one or more embodiments, a method for forming light olefins may comprise introducing a hydrocarbon feed stream into a reactor, reacting the hydrocarbon feed stream with a dehydrogenation catalyst in the reactor to form a high temperature dehydrogenated product, separating at least a portion of the dehydrogenation catalyst from the high temperature dehydrogenated product in a primary separation device, combining the high temperature dehydrogenation product with a quench stream to cool the high temperature dehydrogenation product and form an intermediate temperature dehydrogenation product, and cooling the intermediate temperature dehydrogenation product to form a cooled dehydrogenation product.
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2.发明申请公开(公告)号：US20220356130A1
公开(公告)日：2022-11-10
申请号：US17622412
申请日：2020-06-12
IPC分类号： C07C5/333
摘要： According to one or more embodiments, a method for forming light olefins may comprise introducing a hydrocarbon feed stream into a reactor, reacting the hydrocarbon feed stream with a dehydrogenation catalyst in the reactor to form a high temperature dehydrogenated product, separating at least a portion of the dehydrogenation catalyst from the high temperature dehydrogenated product in a primary separation device, combining the high temperature dehydrogenation product with a quench stream to cool the high temperature dehydrogenation product and form an intermediate temperature dehydrogenation product, and cooling the intermediate temperature dehydrogenation product to form a cooled dehydrogenation product.
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公开(公告)号：US20240307839A1
公开(公告)日：2024-09-19
申请号：US18547031
申请日：2022-03-21
发明人： Matthew T. Pretz , Adam M. McNeeley , Yang Yang
CPC分类号： B01J8/1809 , B01J8/0055 , B01J8/28 , B01J2208/00548 , B01J2208/027
摘要： According to one or more embodiments, the flow of catalyst in a fluidized catalytic processing system may be controlled by a method including determining the amount of catalyst present in a first catalyst bed of the fluidized catalytic processing system. The fluidized catalytic processing system may include a first catalyst bed, a second catalyst bed, a third catalyst bed, and a fourth catalyst bed. The method may include comparing the amount of catalyst present in the first catalyst bed with a threshold catalyst amount. When the amount of catalyst present in the first catalyst bed is less than the threshold catalyst amount, the method may include regulating flow of catalyst from the second catalyst bed to the third catalyst bed such that an increased target amount of catalyst is maintained in the second catalyst bed.
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4.发明公开公开(公告)号：US20240300872A1
公开(公告)日：2024-09-12
申请号：US18664822
申请日：2024-05-15
IPC分类号： C07C5/333
CPC分类号： C07C5/3337 , C07C2523/08 , C07C2523/42 , C07C2523/62
摘要： According to one or more embodiments, a method for forming light olefins may comprise introducing a hydrocarbon feed stream into a reactor, reacting the hydrocarbon feed stream with a dehydrogenation catalyst in the reactor to from a high temperature dehydrogenated product, separating at least a portion of the dehydrogenation catalyst from the high temperature dehydrogenated product in a primary separation device, combining the high temperature dehydrogenation product with a quench stream to cool the high temperature dehydrogenation product and form an intermediate temperature dehydrogenation product, and cooling the intermediate temperature dehydrogenation product to form a cooled dehydrogenation product.
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