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公开(公告)号：US11530172B2
公开(公告)日：2022-12-20
申请号：US16951384
申请日：2020-11-18
摘要： Methods and systems for steam cracking a mixed butane containing feed stream are disclosed. The feed stream includes n-butane and isobutane. The disclosed methods and systems entail splitting the feed into an enriched n-butane fraction and an enriched isobutane fraction. The enriched n-butane fraction is provided to the cracking furnaces, which yield the olefin products and also yield C4 species. The C4 species are partially hydrogenated and provided as a reactant feed to an alkylation reaction. The enriched isobutane fraction is also provided to the alkylation reaction, whereby high value alkylate product is produced. The disclosed methods and systems have increase olefins (especially ethylene) yield because the feed to the cracking process is enriched in n-butane. The economics are also improved because high value alkylate product is produced from a portion of the isobutane.
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公开(公告)号：US20220153658A1
公开(公告)日：2022-05-19
申请号：US16951384
申请日：2020-11-18
摘要： Methods and systems for steam cracking a mixed butane containing feed stream are disclosed. The feed stream includes n-butane and isobutane. The disclosed methods and systems entail splitting the feed into an enriched n-butane fraction and an enriched isobutane fraction. The enriched n-butane fraction is provided to the cracking furnaces, which yield the olefin products and also yield C4 species. The C4 species are partially hydrogenated and provided as a reactant feed to an alkylation reaction. The enriched isobutane fraction is also provided to the alkylation reaction, whereby high value alkylate product is produced. The disclosed methods and systems have increase olefins (especially ethylene) yield because the feed to the cracking process is enriched in n-butane. The economics are also improved because high value alkylate product is produced from a portion of the isobutane.
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公开(公告)号：US20050154245A1
公开(公告)日：2005-07-14
申请号：US10740273
申请日：2003-12-18
申请人： Rian Reyneke , Iain Sinclair , Guang-Chung Lee , Michael Floral , Jeffery Logsdon , Wayne Eng , Christos Papadopoulos
发明人： Rian Reyneke , Iain Sinclair , Guang-Chung Lee , Michael Floral , Jeffery Logsdon , Wayne Eng , Christos Papadopoulos
CPC分类号： F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0252 , F25J2200/38 , F25J2200/80 , F25J2215/62 , F25J2270/06 , F25J2270/60
摘要： A process for recovering hydrogen from a mixed hydrocarbon stream wherein the mixed hydrocarbon stream is subjected to a separation technique to produce a substantially hydrogen enriched stream, which is then recovered as hydrogen product. A process for providing refrigeration duty to the process is also disclosed, wherein a substantially methane enriched stream arising from the separation technique is expanded to provide cooling duty for the process.
摘要翻译： 从混合烃流中回收氢的方法，其中混合烃流经受分离技术以产生基本上富含氢的物流，然后将其作为氢产物回收。 还公开了一种为该方法提供制冷负荷的方法，其中扩大了由分离技术产生的基本上富含甲烷的料流以为该方法提供冷却负荷。
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公开(公告)号：US11198661B2
公开(公告)日：2021-12-14
申请号：US17016512
申请日：2020-09-10
申请人： Rian Reyneke
发明人： Rian Reyneke
摘要： In a propane dehydrogenation (PDH) process, the purpose of the deethanizer and chilling train systems is to separate the cracked gas into a methane-rich tail gas product, a C2, and a C3 process stream. By the use of staged cooling, process-to-process inter-change against propane feed to the reactor and use of high efficiency heat exchangers and distributed distillation techniques, refrigeration power requirements are reduced and a simple and reliable design is provided by the process described herein.
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公开(公告)号：US20210070675A1
公开(公告)日：2021-03-11
申请号：US17016512
申请日：2020-09-10
申请人： Rian Reyneke
发明人： Rian Reyneke
摘要： In a propane dehydrogenation (PDH) process, the purpose of the deethanizer and chilling train systems is to separate the cracked gas into a methane-rich tail gas product, a C2, and a C3 process stream. By the use of staged cooling, process-to-process inter-change against propane feed to the reactor and use of high efficiency heat exchangers and distributed distillation techniques, refrigeration power requirements are reduced and a simple and reliable design is provided by the process described herein.
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公开(公告)号：US20090158737A1
公开(公告)日：2009-06-25
申请号：US12086380
申请日：2005-12-15
申请人： Rik Klavers , Rian Reyneke , Guang-Chung Lee , Iain Sinclair , Wayne W.Y. Eng , Jeffery S. Logsdon , Christos G. Papadopoulos , Michael J. Foral
发明人： Rik Klavers , Rian Reyneke , Guang-Chung Lee , Iain Sinclair , Wayne W.Y. Eng , Jeffery S. Logsdon , Christos G. Papadopoulos , Michael J. Foral
IPC分类号： F01K13/00
摘要： Processes using multiple expansion turbines for efficient recovery of power from a plurality of very high pressure streams of superheated vapor are disclosed. Beneficially, processes of the invention use at least two classes of expansion turbines. Processes according to this invention are particularly useful for recovery of power from very high pressure streams of superheated steam in an olefins manufacturing process. Such streams are typically produced by thermal cracking of suitable petroleum derived feed stocks, and the olefins being produced and purified are typically ethylene and/or propylene.
摘要翻译： 公开了使用多个膨胀涡轮机从多个非常高压的过热蒸汽流中有效回收功率的方法。 有利地，本发明的方法使用至少两类膨胀涡轮机。 根据本发明的方法特别可用于在烯烃制造过程中从非常高压的过热蒸汽流中回收功率。 这种流通常通过合适的石油衍生的原料的热裂解产生，并且生产和纯化的烯烃通常是乙烯和/或丙烯。
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公开(公告)号：US07311813B2
公开(公告)日：2007-12-25
申请号：US10393460
申请日：2003-03-20
申请人： Rian Reyneke , Michael Foral , Christos G. Papadopoulos , Jeffrey S. Logsdon , Wayne W. Y. Eng , Guang-Chung Lee , Ian Sinclair
发明人： Rian Reyneke , Michael Foral , Christos G. Papadopoulos , Jeffrey S. Logsdon , Wayne W. Y. Eng , Guang-Chung Lee , Ian Sinclair
CPC分类号： F25J3/0238 , B01D3/146 , C10G70/04 , C10G70/041 , C10G2400/20 , F25J3/0219 , F25J3/0242 , F25J3/0252 , F25J2200/38 , F25J2210/12 , F25J2215/62 , F25J2215/64
摘要： This invention is an improved distillation sequence for the separation and purification of ethylene from a cracked gas. A hydrocarbon feed enters a C2 distributor column. The top of the C2 distributor column is thermally coupled to an ethylene distributor column, and the bottoms liquid of a C2 distributor column feeds a deethanizer column. The C2 distributor column utilizes a conventional reboiler. The top of the ethylene distributor is thermally coupled with a demethanizer column, and the bottoms liquid of the ethylene distributor feeds a C2 splitter column. The ethylene distributor column utilizes a conventional reboiler. The deethanizer and C2 splitter columns are also thermally coupled and operated at a substantially lower pressure than the C2 distributor column, the ethylene distributor column, and the demethanizer column. Alternatively, a hydrocarbon feed enters a deethanizer column. The top of the deethanizer is thermally coupled to an ethylene distributor column, and the ethylene distributor column utilizes a conventional reboiler. The top of the ethylene distributor column is thermally coupled with a demethanizer column, and the bottoms liquid of the ethylene distributor column feeds a C2 splitter column. The C2 splitter column operates at a pressure substantially lower than the ethylene distributor column, the demethanizer column, and the deethanizer column.
摘要翻译： 本发明是用于从裂化气体中分离和纯化乙烯的改进的蒸馏顺序。 烃进料进入C2分配塔。 C2分配器柱的顶部热耦合到乙烯分配器柱，并且C2分配器塔的底部液体供给脱乙烷塔。 C2分配器柱使用常规的再沸器。 乙烯分配器的顶部与脱甲烷塔热耦合，并且乙烯分配器的底部液体供给C2分离塔。 乙烯分配塔利用常规的再沸器。 脱乙烷塔和C2分离塔也可以以比C2分配塔，乙烯分配塔和脱甲烷塔更低的压力热耦合和操作。 或者，烃进料进入脱乙烷塔。 脱乙烷塔的顶部与乙烯分配塔热偶合，乙烯分配塔利用常规的再沸器。 乙烯分配塔的顶部与脱甲烷塔热耦合，并且乙烯分配器塔的底部液体供应C2分离塔。 C2分离塔在基本上低于乙烯分配塔，脱甲烷塔和脱乙烷塔的压力下运行。
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公开(公告)号：US20050198998A1
公开(公告)日：2005-09-15
申请号：US10796608
申请日：2004-03-09
申请人： Guang-Chung Lee , Rian Reyneke , Michael Foral , Christos Papadopoulos , Wayne Eng , Jeff Logsdon
发明人： Guang-Chung Lee , Rian Reyneke , Michael Foral , Christos Papadopoulos , Wayne Eng , Jeff Logsdon
CPC分类号： F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0252 , F25J3/0655 , F25J2200/74 , F25J2205/04 , F25J2210/12 , F25J2215/60 , F25J2215/62 , F25J2270/04 , F25J2270/12 , F25J2270/18 , F25J2270/66 , F25J2270/902
摘要： The recovery of ethylene from light gases at low temperature by the use of a mixed refrigeration system comprising methane, ehtylene and/or ethane, and propylene and/or propane.
摘要翻译： 通过使用包含甲烷，乙炔和/或乙烷以及丙烯和/或丙烷的混合制冷系统在低温下从轻质气体中回收乙烯。
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公开(公告)号：US11548843B2
公开(公告)日：2023-01-10
申请号：US17510580
申请日：2021-10-26
申请人： Rian Reyneke
发明人： Rian Reyneke
摘要： In a propane dehydrogenation (PDH) process, the purpose of the deethanizer and chilling train systems is to separate the cracked gas into a methane-rich tail gas product, a C2, and a C3 process stream. By the use of staged cooling, process-to-process inter-change against propane feed to the reactor and use of high efficiency heat exchangers and distributed distillation techniques, refrigeration power requirements are reduced and a simple and reliable design is provided by the process described herein.
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10.发明授权公开(公告)号：US11117108B2
公开(公告)日：2021-09-14
申请号：US16570029
申请日：2019-09-13
摘要： A process where external fuel oil is used to wash entrained catalyst from a fluidized-bed propane dehydrogenation reactor effluent, where the fuel oil and catalyst mixture is returned to the reactor to provide the net fuel required for catalyst regeneration. Optionally the fluidized-bed propane dehydrogenation reactor effluent and the fuel oil are contacted in a direct contact inline device before entering a flash zone in the reactor vessel.
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