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公开(公告)号：US11779858B2
公开(公告)日：2023-10-10
申请号：US17135213
申请日：2020-12-28
CPC分类号： B01D3/148 , B01D1/26 , B01D1/28 , B01D3/002 , B01D3/007 , B01D3/145 , B01D15/203 , C07C29/80 , B01D3/005 , B01D61/36 , B01D61/364 , C07C31/08
摘要： The present disclosure provides processes and systems for ethanol production. In one embodiment, a first beer column receives a first portion of a feed mixture including ethanol and water to form a first beer column bottom stream and a first beer column vaporous overhead stream. A beer column receives a second portion of the feed mixture. A first portion of the first beer column bottom stream is forwarded to a first beer column reboiler. A second portion of the first beer column bottom stream is forwarded to a plurality of evaporators. A condensed portion of the first beer column vaporous overhead stream is forwarded to a stripper column. The stripper column forms a feed stream, which is contacted with a separation system, thereby forming a permeate and a retentate. The permeate is forwarded directly to at least one selected from the first beer column and the stripper column.
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公开(公告)号：US20210113937A1
公开(公告)日：2021-04-22
申请号：US17135213
申请日：2020-12-28
摘要： The present disclosure provides processes and systems for ethanol production. In one embodiment, a first beer column receives a first portion of a feed mixture including ethanol and water to form a first beer column bottom stream and a first beer column vaporous overhead stream. A beer column receives a second portion of the feed mixture. A first portion of the first beer column bottom stream is forwarded to a first beer column reboiler. A second portion of the first beer column bottom stream is forwarded to a plurality of evaporators. A condensed portion of the first beer column vaporous overhead stream is forwarded to a stripper column. The stripper column forms a feed stream, which is contacted with a separation system, thereby forming a permeate and a retentate. The permeate is forwarded directly to at least one selected from the first beer column and the stripper column.
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公开(公告)号：US20190336882A1
公开(公告)日：2019-11-07
申请号：US16405374
申请日：2019-05-07
摘要： The present disclosure provides processes and systems for ethanol production. In one embodiment, a first beer column receives a first portion of a feed mixture including ethanol and water to form a first beer column bottom stream and a first beer column vaporous overhead stream. A beer column receives a second portion of the feed mixture. A first portion of the first beer column bottom stream is forwarded to a first beer column reboiler. A second portion of the first beer column bottom stream is forwarded to a plurality of evaporators. A condensed portion of the first beer column vaporous overhead stream is forwarded to a stripper column. The stripper column forms a feed stream, which is contacted with a separation system, thereby forming a permeate and a retentate. The permeate is forwarded directly to at least one selected from the first beer column and the stripper column.
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公开(公告)号：US20160108177A1
公开(公告)日：2016-04-21
申请号：US14979039
申请日：2015-12-22
IPC分类号： C08G73/18
CPC分类号： C08G73/18 , C08G73/0677
摘要： The present disclosure provides methods for modifying and cross-linking polybenzimidazoles, PBI. In one embodiment, the polybenzimidazole reacts with a compound, which has a halogen and a double bond functionality and which comprises a halogen and an organic group to form modified polymers by means of a nucleophilic substitution of the amine proton of the benzimidazole functionality in a solution, and a functional group is connected via each resulting free double bond and/or the polymers that are thus modified are cross-linked.
摘要翻译： 本公开提供了修饰和交联聚苯并咪唑（PBI）的方法。 在一个实施方案中，聚苯并咪唑与具有卤素和双键官能团的化合物反应，并且其包含卤素和有机基团，以通过在溶液中的苯并咪唑官能团的胺质子的亲核取代形成改性聚合物 并且通过每个所得到的自由双键连接官能团和/或经过改性的聚合物是交联的。
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公开(公告)号：US20150093672A1
公开(公告)日：2015-04-02
申请号：US14483945
申请日：2014-09-11
发明人： Robert HEGGEMANN , Rolf SIEKAUP
IPC分类号： H01M8/24
CPC分类号： B01D63/06 , B01D2313/21 , H01M8/0297 , Y02E60/50
摘要： The invention relates to a head plate, fixing the end of a tube bundle with a number of, in particular, porous tubes with a membrane in sealing manner. The head plate is made from a metal or a metal alloy with a melting point lower than the lowest failure temperature for a tube material and/or the membrane.
摘要翻译： 本发明涉及一种头板，用密封方式用多个具有多孔管的多孔管固定管束的端部。 头板由熔点低于管材料和/或膜的最低破坏温度的金属或金属合金制成。
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公开(公告)号：US12122738B2
公开(公告)日：2024-10-22
申请号：US18219470
申请日：2023-07-07
发明人： Virginia Andrade , Stephan Blum , Thiago Righi , Jin Ming Zhou
摘要： The present disclosure provides high-grade ethanol production systems and methods that increase energy efficiency as compared to typical systems and methods by minimizing undesired acetal formation. The provided ethanol production method may include a low boilers removal distillation column and/or a stripper column constructed to simultaneously remove at least a portion of the acetaldehyde and at least a portion of the acetal from a feed stream in the presence of water. In some aspects, a low boilers removal process may be followed by a water removal process, which may be followed by a high boilers removal process. Acidity (e.g., carbon dioxide) may also be removed from a feed stream prior to or during the low boilers removal process. By minimizing acetal production, the provided method minimizes the amount of energy that is required to remove acetal when producing high-grade ethanol.
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公开(公告)号：US12042750B2
公开(公告)日：2024-07-23
申请号：US17897853
申请日：2022-08-29
CPC分类号： B01D3/007 , B01D3/143 , B01D53/04 , C07C29/76 , C07C29/80 , B01D2253/108 , B01D2256/24 , B01D2257/80 , B01D2259/40083
摘要： The present disclosure provides processes and systems for heat integration in ethanol production. In one embodiment, a feed mixture is distilled with one or more distillation units to remove at least a portion of the water, and form a distillation unit bottom stream, a vaporous overhead stream, and a fusel oil stream. Molecular sieve units are regenerated by vacuum or a combination of vacuum and optionally a portion of the product stream to form one or more regenerate streams. A feed tank is configured to receive at least one selected from a condensed portion of the regenerate streams and a portion of a vaporous depressure stream, to form a feed stream. The energy contained in the depressure vapor is recovered by the depressure vapor contacting the feed tank and heating up at least one stream forwarded into the feed tank.
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公开(公告)号：US12005381B2
公开(公告)日：2024-06-11
申请号：US17967144
申请日：2022-10-17
发明人： Jin Ming Zhou , Thiago Righi , Chenxu Shi , Stephan Blum , Virginia Andrade
摘要： A distillation and dehydration system is provided that produces an anhydrous organic solvent. The provided system includes vapor recompression (e.g., a mechanical or thermal vapor recompression unit) to recover heat from a rectification-distillation section (e.g., a rectifier/stripper column). The addition of vapor recompression enables further heat recovery within a stream by increasing the condensation temperature and pressure of that stream and later using its latent heat by condensing it.
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公开(公告)号：US20220410028A1
公开(公告)日：2022-12-29
申请号：US17897853
申请日：2022-08-29
摘要： The present disclosure provides processes and systems for heat integration in ethanol production. In one embodiment, a feed mixture is distilled with one or more distillation units to remove at least a portion of the water, and form a distillation unit bottom stream, a vaporous overhead stream, and a fusel oil stream. Molecular sieve units are regenerated by vacuum or a combination of vacuum and optionally a portion of the product stream to form one or more regenerate streams. A feed tank is configured to receive at least one selected from a condensed portion of the regenerate streams and a portion of a vaporous depressure stream, to form a feed stream. The energy contained in the depressure vapor is recovered by the depressure vapor contacting the feed tank and heating up at least one stream forwarded into the feed tank.
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公开(公告)号：US11426675B2
公开(公告)日：2022-08-30
申请号：US16983460
申请日：2020-08-03
摘要： The present disclosure provides processes and systems for heat integration in ethanol production. In one embodiment, a feed mixture is distilled with one or more distillation units to remove at least a portion of the water, and form a distillation unit bottom stream, a vaporous overhead stream, and a fusel oil stream. Molecular sieve units are regenerated by vacuum or a combination of vacuum and optionally a portion of the product stream to form one or more regenerate streams. A feed tank is configured to receive at least one selected from a condensed portion of the regenerate streams and a portion of a vaporous depressure stream, to form a feed stream. The energy contained in the depressure vapor is recovered by the depressure vapor contacting the feed tank and heating up at least one stream forwarded into the feed tank.
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