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公开(公告)号：US20240228407A1
公开(公告)日：2024-07-11
申请号：US18288767
申请日：2022-04-26
发明人： Mohammad KESHTKAR , David GENT
IPC分类号： C07C11/04 , C07C5/48 , C07C51/215 , C07C53/08
CPC分类号： C07C11/04 , C07C5/48 , C07C51/215 , C07C53/08
摘要： A system and method for producing ethylene, including dehydrogenating ethane to ethylene via an ODH catalyst in the presence of oxygen in an ODH reactor, discharging an effluent (including at least ethylene, water, and acetic acid) from the ODH reactor, recovering heat from the effluent for processing feed including ethane for the ODH reactor, recovering water from the effluent as recycle water for addition to the feed in performing water dilution of the feed, and adding oxygen to the feed to give a mixed feed including ethane, oxygen, and recycle water to the ODH reactor.
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公开(公告)号：US20240228418A1
公开(公告)日：2024-07-11
申请号：US18288751
申请日：2022-04-26
发明人： Mohammad KESHTKAR , David GENT
CPC分类号： C07C51/215 , B01D3/143 , B01D11/0492 , B01J19/0013 , C07C5/48 , C07C51/48 , B01J2219/00103
摘要： A system and method for producing ethylene, including dehydrogenating ethane to ethylene via an ODH catalyst in an ODH reactor, discharging an effluent from the ODH reactor, heating feed including ethane to the ODH reactor with the effluent, recovering acetic acid from the effluent as acetic acid product, and forwarding a process gas including ethylene from the effluent for further processing to give ethylene product. The technique involves energy integration including with respect to the processing of the effluent. Water may be recovered from the effluent as recycle water for addition of the recycle water to the feed.
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公开(公告)号：US20230364573A1
公开(公告)日：2023-11-16
申请号：US18030329
申请日：2021-11-05
CPC分类号： B01J8/0438 , B01J8/003 , B01J8/0492 , B01J8/0285 , C07C5/3332 , B01J2208/00115 , B01J2208/00752 , B01J2208/00805 , B01J2208/024 , B01J2208/027
摘要： A fixed bed reactor system for the oxidative dehydrogenation of ethane, comprising a catalyst bed wherein the catalyst capacity profile increases along the length of catalyst bed from the upstream end to the downstream end. The catalyst bed may include one or more sections, across one or more fixed bed reactors, that are identified by a change in catalyst capacity. Catalyst capacity, or the ability to convert ethane into ethylene, may be altered by changing the dilution ratio, void fraction, and or the 35% conversion temperature. A method for loading a fixed bed reactor with an increasing catalyst capacity is also described.
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公开(公告)号：US20230202958A1
公开(公告)日：2023-06-29
申请号：US18008312
申请日：2021-05-25
发明人： Bolaji OLAYIWOLA , Shahin GOODARZNIA , Vasily SIMANZHENKOV , Mohamed AIFFA , Kamal SERHAL , Robert LADD , David GENT
摘要： The present disclosure relates to limiting the production of acetic acid in an oxidative dehydrogenation process to convert ethane to ethylene. The process of oxidative dehydrogenation includes feeding acetic acid, along with ethane and oxygen into an oxidative dehydrogenation reactor where contact with a catalyst leads to conversion of the ethane into ethylene and acetic acid. By including acetic acid in the feed, the amount of acetic acid produced may be limited and the ratio of ethylene produced to ethane consumed may increase.
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