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公开(公告)号：US20230322652A1
公开(公告)日：2023-10-12
申请号：US18209099
申请日：2023-06-13
发明人： Thiago Righi , Chenxu Shi , Virginia Andrade , Stephan Blum
摘要： The present disclosure provides for organic solvent production via distillation and dehydration by: directing portions of a feed stream to a first and second distillation columns operating at a different pressures from each other, wherein the organic solvent is preferably an alcohol and more preferably ethanol; generating, in the first distillation column, a vaporous first overhead stream; directing the vaporous first overhead stream directly to a rectification system; generating, in the second distillation column, a vaporous second overhead stream; forming a condensed second overhead stream from the vaporous second overhead stream; directing, at least a portion of the condensed second overhead stream to the rectification system; generating, via the rectification system, a third overhead stream; directing at least a portion of the third overhead stream to a separation system; and generating, in the separation system, an enriched solvent stream.
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公开(公告)号：US20230010850A1
公开(公告)日：2023-01-12
申请号：US17862780
申请日：2022-07-12
发明人： Thiago Righi , Chenxu Shi , Virginia Andrade , Stephan BLUM
摘要： The present disclosure provides for organic solvent production via distillation and dehydration by: directing portions of a feed stream to a first and second distillation columns operating at a different pressures from each other, wherein the organic solvent is preferably an alcohol and more preferably ethanol; generating, in the first distillation column, a vaporous first overhead stream; directing the vaporous first overhead stream directly to a rectification system; generating, in the second distillation column, a vaporous second overhead stream; forming a condensed second overhead stream from the vaporous second overhead stream; directing, at least a portion of the condensed second overhead stream to the rectification system; generating, via the rectification system, a third overhead stream; directing at least a portion of the third overhead stream to a separation system; and generating, in the separation system, an enriched solvent stream.
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3.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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4.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：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：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：US20240140893A1
公开(公告)日：2024-05-02
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：US11697630B2
公开(公告)日：2023-07-11
申请号：US17398702
申请日：2021-08-10
发明人： Virginia Andrade , Stephan Blum , Thiago Righi , Zhou Jin Ming
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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