-
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.
-
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.
-
公开(公告)号：US20200086227A1
公开(公告)日：2020-03-19
申请号：US16694087
申请日：2019-11-25
IPC分类号： B01D3/00 , B01J20/18 , B01J20/34 , C07C29/80 , B01D3/14 , B01D3/06 , B01D61/36 , B01D3/32 , B01D53/26 , B01D15/20
摘要： The present disclosure provides processes and systems for dehydrating a byproduct stream 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 first byproduct stream. The first byproduct stream is contacted with a molecular sieve unit, thereby forming a product stream. The molecular sieve unit is cyclically contacted with at least a portion of the product stream to regenerate the molecular sieve unit and form one or more regenerate streams. A second byproduct stream including at least one of (1) the regenerate streams and (2) at least a portion of the fusel oil stream is contacted with a separation system, thereby forming a permeate and a retentate. At least a portion of the retentate is forwarded into the product stream.
-
公开(公告)号：US09692080B2
公开(公告)日：2017-06-27
申请号：US14483945
申请日：2014-09-11
发明人： Robert Heggemann , Rolf Siekaup
IPC分类号： B01D63/06 , H01M8/2485 , H01M8/0297
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.
-
5.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.
-
6.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.
-
公开(公告)号：US10729987B1
公开(公告)日：2020-08-04
申请号：US15836558
申请日：2017-12-08
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.
-
公开(公告)号：US10472468B2
公开(公告)日：2019-11-12
申请号：US15876350
申请日：2018-01-22
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.
-
公开(公告)号：US20180155499A1
公开(公告)日：2018-06-07
申请号：US15876350
申请日：2018-01-22
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.
-
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.
-
-
-
-
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.016 秒)
