公开(公告)号：US08002953B2

公开(公告)日：2011-08-23

申请号：US11827896

申请日：2007-07-13

Applicant: Fu-Ming Lee ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Po-Sung Cheng ,  Tai-Ping Chang

Inventor： Fu-Ming Lee ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Po-Sung Cheng ,  Tai-Ping Chang

IPC: B01D3/40 ,  B01D3/42 ,  C07C29/84 ,  C07C29/94 ,  C12G3/12

CPC classification number: C07C29/84 ,  B01D3/002 ,  B01D3/143 ,  B01D3/40 ,  Y02P20/125 ,  Y02P20/57 ,  Y10S203/14 ,  Y10S203/20 ,  C07C31/08

Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

Abstract translation: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔（EDC）。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂，即使在没有液体回流条件下，没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收，可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中，保留在来自EDC的水流中的乙醇在后蒸馏塔中回收，或将水流循环至前端预蒸馏塔，其中乙醇容易回收，因为VLE曲线 对于乙醇/水非常有利于蒸馏。

公开(公告)号：US08172987B2

公开(公告)日：2012-05-08

申请号：US13184540

申请日：2011-07-17

Applicant: Fu-Ming Lee ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Po-Sung Cheng ,  Tai-Ping Chang

Inventor： Fu-Ming Lee ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Po-Sung Cheng ,  Tai-Ping Chang

IPC: B01D3/40 ,  B01D3/42 ,  C07C29/84 ,  C07C29/94 ,  C12G3/12

CPC classification number: C07C29/84 ,  B01D3/002 ,  B01D3/143 ,  B01D3/40 ,  Y02P20/125 ,  Y02P20/57 ,  Y10S203/14 ,  Y10S203/20 ,  C07C31/08

Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent, is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

Abstract translation: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔（EDC）。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂，即使在没有液体回流条件下，也没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收，可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中，保留在来自EDC的水流中的乙醇在后蒸馏塔中回收，或将水流循环至前端预蒸馏塔，其中乙醇容易回收，因为VLE曲线 对于乙醇/水非常有利于蒸馏。

公开(公告)号：US20110266134A1

公开(公告)日：2011-11-03

申请号：US13184540

申请日：2011-07-17

Applicant: Fu-Ming Lee ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Po-Sung Cheng ,  Tai-Ping Chang

Inventor： Fu-Ming Lee ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Po-Sung Cheng ,  Tai-Ping Chang

IPC: C07C29/84

CPC classification number: C07C29/84 ,  B01D3/002 ,  B01D3/143 ,  B01D3/40 ,  Y02P20/125 ,  Y02P20/57 ,  Y10S203/14 ,  Y10S203/20 ,  C07C31/08

Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent, is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

Abstract translation: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔（EDC）。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂，即使在没有液体回流条件下，也没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收，可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中，保留在来自EDC的水流中的乙醇在后蒸馏塔中回收，或将水流循环至前端预蒸馏塔，其中乙醇容易回收，因为VLE曲线 对于乙醇/水非常有利于蒸馏。

公开(公告)号：US20090014313A1

公开(公告)日：2009-01-15

申请号：US11827896

申请日：2007-07-13

Applicant: Fu-Ming Lee ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Po-Sung Cheng ,  Tai-Ping Chang

Inventor： Fu-Ming Lee ,  Kuang-Yeu Wu ,  Lindsey Vuong ,  Fong-Cheng Su ,  Tzong-Bin Lin ,  Jyh-Haur Hwang ,  Hung-Chung Shen ,  Po-Sung Cheng ,  Tai-Ping Chang

IPC: C07C31/08

CPC classification number: C07C29/84 ,  B01D3/002 ,  B01D3/143 ,  B01D3/40 ,  Y02P20/125 ,  Y02P20/57 ,  Y10S203/14 ,  Y10S203/20 ,  C07C31/08

Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

Abstract translation: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔（EDC）。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂，即使在没有液体回流条件下，没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收，可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中，保留在来自EDC的水流中的乙醇在后蒸馏塔中回收，或将水流循环至前端预蒸馏塔，其中乙醇容易回收，因为VLE曲线 对于乙醇/水非常有利于蒸馏。