AR086134A1 - Alcohol separation process with reduced energy water withdrawal - Google Patents

Alcohol separation process with reduced energy water withdrawal

Info

Publication number
AR086134A1
AR086134A1 ARP120101475A AR086134A1 AR 086134 A1 AR086134 A1 AR 086134A1 AR P120101475 A ARP120101475 A AR P120101475A AR 086134 A1 AR086134 A1 AR 086134A1
Authority
AR
Argentina
Prior art keywords
ethanol
water
acetic acid
stream
distillate
Prior art date
Application number
Other languages
Spanish (es)
Original Assignee
Celanese Int Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US13/094,537 priority Critical patent/US8884080B2/en
Priority to US201161570600P priority
Application filed by Celanese Int Corp filed Critical Celanese Int Corp
Publication of AR086134A1 publication Critical patent/AR086134A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/132Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
    • C07C29/136Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
    • C07C29/147Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
    • C07C29/149Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof with hydrogen or hydrogen-containing gases

Abstract

La presente se refiere a la recuperación de alcoholes, en particular etanol, a partir de un producto de etanol crudo obtenido de la hidrogenación de ácido acético con el uso de un proceso de energía reducida. The present invention relates to the recovery of alcohols, especially ethanol, from a crude ethanol produced from hydrogenating acetic acid using a low energy process. El producto de etanol crudo se puede alimentar a una columna de destilación en la que se retira una porción sustancial del agua con el ácido acético en el residuo. The crude ethanol can be fed to a distillation column in which a substantial portion of the water with acetic acid in the residue is removed. Se puede retirar agua adicional mediante una unidad de adsorción por cambio de la presión, un tamiz molecular y/o una membrana. Additional water may be removed by a unit swing adsorption pressure, a molecular sieve and / or a membrane. La extracción de etanol también se puede utilizar para reducir la concentración de etanol en las corrientes de reciclado.Reivindicación 1: Un proceso para producir etanol, que comprende los siguientes pasos: hidrogenar ácido acético de una corriente de alimentación de ácido acético en un reactor para formar un producto de etanol crudo; Ethanol extraction can also be used to reduce the ethanol concentration in streams reciclado.Reivindicación 1: A process for producing ethanol, comprising the following steps: hydrogenating acetic acid in a feed stream of acetic acid in a reactor to form a crude ethanol; separar al menos una porción del producto de etanol crudo en una columna en un primer destilado que comprende etanol, acetato de etilo, y al menos 5% en peso de agua, y un primer residuo que comprende ácido acético y agua; separating at least a portion of the crude product in ethanol in a column a first distillate comprising ethanol, ethyl acetate, and at least 5% by weight of water, and a first residue comprising acetic acid and water; en donde una porción sustancial del agua que se halla en el producto de etanol crudo que se alimenta a la columna se retira en el primer residuo; wherein a substantial portion of the water in the product is crude ethanol fed to the column is removed in the first residue; separar al menos una porción del primer destilado en una primera corriente que comprende etanol y agua, y una segunda corriente que comprende acetato de etilo; separating at least a portion of the first distillate into a first stream comprising ethanol and water, and a second stream comprising ethyl acetate; y retirar agua de la primera corriente con el uso de una unidad de retiro de agua para formar una corriente de producto de etanol, con la condición de que no se reitre ninguna cantidad de agua del primer destilado antes de separar la al menos una porción del primer destilado. and removing water from the first stream with the use of a unit removal of water to form a product stream of ethanol, with the proviso that no water of the first distillate is not reitre before separating at least a portion of first distillate.
ARP120101475 2010-07-09 2012-04-26 Alcohol separation process with reduced energy water withdrawal AR086134A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/094,537 US8884080B2 (en) 2010-07-09 2011-04-26 Reduced energy alcohol separation process
US201161570600P true 2011-12-14 2011-12-14

Publications (1)

Publication Number Publication Date
AR086134A1 true AR086134A1 (en) 2013-11-20

Family

ID=46028227

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP120101475 AR086134A1 (en) 2010-07-09 2012-04-26 Alcohol separation process with reduced energy water withdrawal

Country Status (4)

Country Link
CN (1) CN103108854B (en)
AR (1) AR086134A1 (en)
TW (2) TW201245126A (en)
WO (1) WO2012149140A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104610019B (en) * 2015-02-05 2017-01-04 中石化上海工程有限公司 A method of producing ethanol

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Also Published As

Publication number Publication date
WO2012149140A1 (en) 2012-11-01
CN103108854A (en) 2013-05-15
TW201245126A (en) 2012-11-16
TW201245128A (en) 2012-11-16
CN103108854B (en) 2015-09-30

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