公开(公告)号：US4961826A

公开(公告)日：1990-10-09

申请号：US897986

申请日：1986-08-19

申请人： Hans E. Grethlein ,  Lee H. Lynd

发明人： Hans E. Grethlein ,  Lee H. Lynd

IPC分类号： B01D1/28 ,  B01D3/00 ,  B01D3/14

CPC分类号： B01D3/146 ,  B01D1/2856 ,  B01D3/007 ,  Y10S203/04 ,  Y10S203/14 ,  Y10S203/20

摘要： A method of distillation employing a heat pump (which may be driven by a compressor) using a vapor stream from within the distillation system as a heat source and a liquid stream from within the distillation system as a heat sink. The selection of heat-source vapors and heat-sink liquid is such that at least one is withdrawn from the phase-contacting region of the distillation system. The return of streams withdrawn from the phase-contacting region of the distillation system to the distillation system is such that at least one of the streams is returned at a temperature different from that of the point from which it was withdrawn, and all withdrawn streams are returned in manner such that a stream removed as vapor is returned at a point with a temperature at most that at the point it was withdrawn, and a stream removed as liquid is returned at a point with a temperature at least that at which it was withdrawn. Embodiments of the basic method where vapor only, liquid only, or both liquid and vapor are withdrawn from and returned to the phase-contacting region of the distillation system are considered. The impact of the invention is to reduce the heat requirement of distillation in exchange for an amount of work which is usually small because the temperature difference between heat sources and sinks is minimized. Combination of the basic distillation method with multi-effect distillation, convention overhead-to-reboiler heat pumped distillation, azeotropic and extractive distillation, and fermentative production of volatile compounds is described. A system specifically designed for the separation of ethanol-water mixtures which utilized the present invention and extractive distillation in a system with extensive heat integration is presented.

摘要翻译： 使用来自蒸馏系统内的蒸气流作为热源的蒸气采用热泵（其可由压缩机驱动）的蒸馏方法和作为散热器的蒸馏系统内的液体流。 热源蒸气和散热液体的选择使得至少一个从蒸馏系统的相接触区域排出。 将从蒸馏系统的相接触区域排出的物流返回到蒸馏系统使得至少一个物流以不同于其被抽出的点的温度返回，并且所有排出的物流是 以如下方式返回，使得作为蒸气除去的物流在其被取出的温度至多为一点的点返回，并且作为液体除去的物流在至少被取出的温度的点返回 。 考虑到仅蒸汽，仅液体，或液体和蒸气两者从蒸馏系统的相接触区域排出并返回到蒸馏系统的相接触区域的基本方法的实施方案。 本发明的影响是减少蒸馏的热量需求，以换取通常较小的工作量，因为热源和水槽之间的温差最小化。 描述了碱蒸馏法与多效蒸馏法，常规塔式再沸器热泵蒸馏，共沸萃取蒸馏和挥发性化合物发酵生产的组合。 提出了专门设计用于分离使用本发明的乙醇 - 水混合物和在具有广泛的热积分的系统中的萃取蒸馏的系统。

公开(公告)号：US4425432A

公开(公告)日：1984-01-10

申请号：US286246

申请日：1981-07-23

申请人： Joseph G. Zeikus ,  Lee H. Lynd

发明人： Joseph G. Zeikus ,  Lee H. Lynd

IPC分类号： C12N1/20 ,  C12N1/32 ,  C12P7/52 ,  C12P7/56 ,  C12P7/54 ,  C12R1/01

CPC分类号： C12R1/01 ,  C12N1/20 ,  C12N1/32 ,  C12P7/52 ,  C12P7/56 ,  Y10S435/822

摘要： A process for the propagation of microbial cells and the production of fermentation products, such as acetic and butyric acid, comprises anaerobically growing an acidogenic bacterium, such as a strain of Butyribacterium methylotrophicum ATCC 33226, in a nutrient medium containing a single carbon product, such as methanol, as the fermentation substrate or main source of assimilable carbon, accumulating the microbial cells in said medium and then separating and recovering said microbial cells and desired fermentation products from the spent media.

摘要翻译： 微生物细胞繁殖和生产发酵产物如乙酸和丁酸的方法包括在含有单一碳产物的营养培养基中厌氧地生长一种致酸细菌，例如甲酸梭菌属菌株ATCC 33226， 作为甲醇，作为发酵底物或可同化碳的主要来源，在所述培养基中积聚微生物细胞，然后从废培养基中分离和回收所述微生物细胞和所需的发酵产物。

公开(公告)号：US4626321A

公开(公告)日：1986-12-02

申请号：US829549

申请日：1986-02-13

申请人： Hans E. Grethlein ,  Lee H. Lynd

发明人： Hans E. Grethlein ,  Lee H. Lynd

IPC分类号： B01D1/28 ,  B01D3/00 ,  B01D3/14

CPC分类号： B01D3/146 ,  B01D1/2856 ,  B01D3/007 ,  Y02B30/52 ,  Y10S203/04 ,  Y10S203/20

摘要： A method of distillation employing a heat pump (which may be driven by a compressor) using a vapor stream from within the distillation system as a heat source and a liquid stream from within the distillation system as a heat sink. The selection of heat-source vapors and heat-sink liquid is such that at least one is withdrawm from the phase-contacting region of the distillation system. The return of streams withdrawm from the phase-contacting region of the distillation system to the distillation system is such that at least one of the streams is returned at a temperature different from that of the point from which it was withdrawn, and all withdrawn streams are returned in manner such that a stream removed as vapor is returned at a point with a temperature at most that at the point it was withdrawn, and a stream removed as liquid is returned at a point with a temperature at least that at which it was withdrawn. Embodiments of the basic method where vapor only, liquid only, or both liquid and vapor are withdrawn from and returned to the phase-contacting region of the distillation system are considered. The impact of the invention is to reduce the heat requirement of distillation in exchange for an amount of work which is usually small because the temperature difference between heat sources and sinks is minimized. Combination of the basic distillation method with multi-effect distillation, convention overhead-to-reboiler heat pumped distillation, azeotropic and extractive distillation, and fermentative production of volatile compounds is described. A system specifically designed for the separation of ethanol-water mixtures which utilizes the present invention and extractive distillation in a system with extensive heat integration is presented.

摘要翻译： 使用来自蒸馏系统内的蒸气流作为热源的蒸气采用热泵（其可由压缩机驱动）的蒸馏方法和作为散热器的蒸馏系统内的液体流。 热源蒸气和散热液体的选择使得至少一个离开蒸馏系统的相接触区域。 从蒸馏系统的相接触区域向蒸馏系统退出的回流是这样的流中的至少一个在与其被抽出的点不同的温度下返回，并且所有排出的物流是 以如下方式返回，使得作为蒸气除去的物流在其被取出的温度至多为一点的点返回，并且作为液体除去的物流在至少被取出的温度的点返回 。 考虑到仅蒸汽，仅液体，或液体和蒸气两者从蒸馏系统的相接触区域排出并返回到蒸馏系统的相接触区域的基本方法的实施方案。 本发明的影响是减少蒸馏的热量需求，以换取通常较小的工作量，因为热源和水槽之间的温差最小化。 描述了碱蒸馏法与多效蒸馏法，常规塔式再沸器热泵蒸馏，共沸萃取蒸馏和挥发性化合物发酵生产的组合。 提出了一种专门用于分离乙醇 - 水混合物的系统，该系统利用本发明和在具有广泛的热积分的系统中进行萃取蒸馏。