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公开(公告)号：US10118876B2
公开(公告)日：2018-11-06
申请号：US15230817
申请日：2016-08-08
Applicant: Lummus Technology Inc.
Inventor： Robert John Brummer , Kevin John Schwint , Thomas Alexander Dwyer
Abstract: A process for recovering butadiene from a C4 fraction is disclosed. The process may include: contacting a mixed C4 stream comprising butane, butene, and butadiene, with a solvent comprising an organic solvent and water in a butadiene pre-absorber column to recover an overheads fraction comprising at least a portion of the butane, butene, and water, and a first bottoms fraction comprising the organic solvent, butadiene, and at least a portion of the butene; and feeding the first bottoms fraction to a butadiene extraction unit to recover a butene fraction, a crude butadiene fraction, and a solvent fraction.
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公开(公告)号：US10017431B2
公开(公告)日：2018-07-10
申请号：US14565913
申请日：2014-12-10
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert John Brummer
CPC classification number: C07C5/333 , B01J8/02 , B01J2208/00008 , B01J2208/021 , C07C11/06 , C07C11/09 , C07C11/08 , C07C11/167 , C07C11/18 , C07C11/02 , C07C11/10 , C07C11/173
Abstract: Processes and systems for producing olefins, including: dehydrogenating a first n-alkane to produce a first effluent; and dehydrogenating at least one of a first isoalkane or a second n-alkane to produce a second effluent. The first and second effluents may be compressed and fed to a common separation train to separate the effluents into two or more fractions. In some embodiments, each of the first and second dehydrogenation reaction zones may include two reactors, one reactor in each of the reaction zones operating in a dehydrogenation cycle, one operating in a regeneration cycle, and one operating in a purge or evacuation/reduction cycle. Operation of the reactors in the dehydrogenation cycle is staggered, such that the purge cycle, regeneration cycle, or evacuation/reduction cycle of the reactors may not overlap.
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公开(公告)号：US20180073803A1
公开(公告)日：2018-03-15
申请号：US15266430
申请日：2016-09-15
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Sanjeev Ram
IPC: F25J3/02
CPC classification number: F25J3/0242 , C07C7/005 , C07C7/09 , F25J3/0219 , F25J3/0238 , F25J2200/02 , F25J2200/74 , F25J2205/04 , F25J2210/12 , F25J2215/62 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2270/88 , C07C11/04
Abstract: Processes and systems for recovery of a dilute ethylene stream are illustrated and described. More specifically, embodiments disclosed herein relate to processes and systems for separation of a dilute ethylene stream from an offgas or other vapor streams, where the ultra-low temperature refrigeration for the desired separations is provided by the offgas itself, and only moderately-low temperature externally supplied propylene refrigerants (for example, at −40° C. to 15° C.) are necessary.
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公开(公告)号：US09403739B2
公开(公告)日：2016-08-02
申请号：US14030186
申请日：2013-09-18
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert John Brummer
CPC classification number: C07C7/10 , B01D3/143 , B01D3/40 , C07C4/02 , C07C5/327 , C07C5/48 , C07C7/11 , Y10T29/49716 , C07C11/167
Abstract: A process for recovering butadiene from a C4 fraction is disclosed. The process may include: contacting a mixed C4 stream comprising butane, butene, and butadiene, with a solvent comprising an organic solvent and water in a butadiene pre-absorber column to recover an overheads fraction comprising at least a portion of the butane, butene, and water, and a first bottoms fraction comprising the organic solvent, butadiene, and at least a portion of the butene; and feeding the first bottoms fraction to a butadiene extraction unit to recover a butene fraction, a crude butadiene fraction, and a solvent fraction.
Abstract translation: 公开了从C4馏分回收丁二烯的方法。 该方法可以包括：将包含丁烷，丁烯和丁二烯的混合C 4流与包含有机溶剂和水的溶剂在丁二烯预吸收塔中接触，以回收包含至少一部分丁烷，丁烯， 和水，以及包含有机溶剂，丁二烯和至少一部分丁烯的第一塔底馏分; 并将第一塔底馏分进料到丁二烯提取单元以回收丁烯馏分，粗丁二烯馏分和溶剂馏分。
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公开(公告)号：US11034632B2
公开(公告)日：2021-06-15
申请号：US15266398
申请日：2016-09-15
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Sanjeev Ram
Abstract: Processes and systems for the production of ethylbenzene using a dilute ethylene feed and subsequent recovery of ethane in the alkylation vent gas.
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Patent Agency Ranking
公开(公告)号：US10081581B2
公开(公告)日：2018-09-25
申请号：US15204167
申请日：2016-07-07
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert John Brummer
Abstract: A process for recovering butadiene from a C4 fraction is disclosed. The process may include: contacting a mixed C4 stream comprising butane, butene, and butadiene, with a solvent comprising an organic solvent and water in a butadiene pre-absorber column to recover an overheads fraction comprising at least a portion of the butane, butene, and water, and a first bottoms fraction comprising the organic solvent, butadiene, and at least a portion of the butene; and feeding the first bottoms fraction to a butadiene extraction unit to recover a butene fraction, a crude butadiene fraction, and a solvent fraction.
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公开(公告)号：US20180072640A1
公开(公告)日：2018-03-15
申请号：US15266398
申请日：2016-09-15
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Sanjeev Ram
CPC classification number: C07C7/11 , B01D3/009 , B01D19/0068 , B01D53/1406 , B01D53/1418 , B01D53/1487 , B01D53/1493 , B01D2252/20 , B01D2252/205 , B01D2256/245 , C07C5/03 , C07C6/06 , C07C7/005 , C07C7/09 , Y02P30/464
Abstract: Processes and systems for the production of ethylbenzene using a dilute ethylene feed and subsequent recovery of ethane in the alkylation vent gas.
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公开(公告)号：US09744475B2
公开(公告)日：2017-08-29
申请号：US15059771
申请日：2016-03-03
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert J. Brummer
CPC classification number: B01D3/40 , B01D3/143 , B01D19/0068 , C07C7/08 , C07C11/167
Abstract: A process for recovering 1,3-butadiene from a C4 fraction, where the butadiene extraction processes may be operated at an intermediate pressure using a liquid ring type compressor. The use of a liquid ring compressor, among other process options presented herein, may advantageously reduce capital and operating costs, similar to the compressorless option, while mitigating the risks associated with the higher operating temperatures and pressures associated with the compressorless option. Thus, the embodiments of the processes disclosed herein encompass the best features of the conventional design (low pressure, with a compressor) with the advantages of the compressorless design (low capital and operating cost), as well as other advantages unique to the systems disclosed herein.
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公开(公告)号：US20160311733A1
公开(公告)日：2016-10-27
申请号：US15204167
申请日：2016-07-07
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert John Brummer
CPC classification number: C07C7/10 , B01D3/143 , B01D3/40 , C07C4/02 , C07C5/327 , C07C5/48 , C07C7/11 , Y10T29/49716 , C07C11/167
Abstract: A process for recovering butadiene from a C4 fraction is disclosed. The process may include: contacting a mixed C4 stream comprising butane, butene, and butadiene, with a solvent comprising an organic solvent and water in a butadiene pre-absorber column to recover an overheads fraction comprising at least a portion of the butane, butene, and water, and a first bottoms fraction comprising the organic solvent, butadiene, and at least a portion of the butene; and feeding the first bottoms fraction to a butadiene extraction unit to recover a butene fraction, a crude butadiene fraction, and a solvent fraction.
Abstract translation: 公开了从C4馏分回收丁二烯的方法。 该方法可以包括：将包含丁烷，丁烯和丁二烯的混合C 4流与包含有机溶剂和水的溶剂在丁二烯预吸收塔中接触，以回收包含至少一部分丁烷，丁烯， 和水，以及包含有机溶剂，丁二烯和至少一部分丁烯的第一塔底馏分; 并将第一塔底馏分进料到丁二烯提取单元以回收丁烯馏分，粗丁二烯馏分和溶剂馏分。
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公开(公告)号：US09296667B2
公开(公告)日：2016-03-29
申请号：US14058637
申请日：2013-10-21
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert J. Brummer
IPC: C07C7/08
CPC classification number: B01D3/40 , B01D3/143 , B01D19/0068 , C07C7/08 , C07C11/167
Abstract: A process for recovering 1,3-butadiene from a C4 fraction, where the butadiene extraction processes may be operated at an intermediate pressure using a liquid ring type compressor. The use of a liquid ring compressor, among other process options presented herein, may advantageously reduce capital and operating costs, similar to the compressorless option, while mitigating the risks associated with the higher operating temperatures and pressures associated with the compressorless option. Thus, the embodiments of the processes disclosed herein encompass the best features of the conventional design (low pressure, with a compressor) with the advantages of the compressorless design (low capital and operating cost), as well as other advantages unique to the systems disclosed herein.
Abstract translation: 从C4级分回收1,3-丁二烯的方法，其中丁二烯萃取方法可以使用液环式压缩机在中间压力下操作。 使用液环式压缩机以及本文提供的其它过程选项可有利地减少与无压缩机选项类似的资本和操作成本，同时减轻与无压缩机选择相关联的较高操作温度和压力相关的风险。 因此，本文公开的方法的实施例包括具有无压缩机设计（低资本和运行成本）的优点的传统设计（具有压缩机的低压力）的最佳特征以及公开的系统独有的其它优点 这里。
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