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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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2.发明公开公开(公告)号：US20240316476A1
公开(公告)日：2024-09-26
申请号：US18736752
申请日：2024-06-07
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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3.发明申请公开(公告)号：US20230123549A1
公开(公告)日：2023-04-20
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：US20240033652A1
公开(公告)日：2024-02-01
申请号：US18377975
申请日：2023-10-09
CPC分类号： B01D3/148 , B01D1/26 , B01D1/28 , B01D3/002 , B01D3/007 , B01D3/145 , B01D15/203 , C07C29/80 , B01D61/36
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：US20240278144A1
公开(公告)日：2024-08-22
申请号：US18581636
申请日：2024-02-20
发明人： Virginia ANDRADE , Jin Ming ZHOU , Stephan BLUM , Thiago RIGHI
摘要： An organic solvent production system and method are provided in which permeate and/or retentate streams are collected from a set of membranes or other purification devices via one or more headers to direct the streams to various downstream systems for further processing and/or heat recovery against colder streams.
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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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