ES485369A1 - Un procedimiento para purificar etanol bruto para obtener unazeotropo de etanol-agua sustancialmente puro - Google Patents

Un procedimiento para purificar etanol bruto para obtener unazeotropo de etanol-agua sustancialmente puro

Info

Publication number
ES485369A1
ES485369A1 ES485369A ES485369A ES485369A1 ES 485369 A1 ES485369 A1 ES 485369A1 ES 485369 A ES485369 A ES 485369A ES 485369 A ES485369 A ES 485369A ES 485369 A1 ES485369 A1 ES 485369A1
Authority
ES
Spain
Prior art keywords
ethanol
column
feed
water
crude
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES485369A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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
Application filed by BP Chemicals Ltd filed Critical BP Chemicals Ltd
Publication of ES485369A1 publication Critical patent/ES485369A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C29/82—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • B01D3/146—Multiple effect distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C29/84—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by extractive distillation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/14—Ejector-eductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/20—Power plant

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Pyrrole Compounds (AREA)

Abstract

Procedimiento para purificar etanol bruto y obtener un azeótropo de etanol-agua sustancialmente puro, que comprende alimentar separadamente el etanol bruto y agua a una única columna de hidro-selección que tiene una sección de reflujo por encima del punto de alimentación del agua, una sección intermedia entre el punto de alimentación del etanol bruto, una sección de separación entre el punto de alimentación del etanol bruto y el plato de extracción lateral de producto, y una sección e base por debajo del plato de extracción lateral de producto, en el que la relación de platos teóricos en las secciones de reflujo, intermedia y de separación está en el intervalo 1:3 , 4-5, 5:8-11, conteniendo la columna de hidro-selección al menos 66 platos reales y trabajando a temperaturas entre 121ºC y 177ºC y a una presión por encima de 3,5 kg/cm2 absolutos, alimentándose el agua de la columna en un punto por encima del punto de alimentación del etanol bruto, y siendo la relación molar del agua alimentada a etanol en la alimentación de etanol bruto al menos 10:1, retirar una fracción de vapor de cabeza que contiene sustancialmente todas las impurezas volátiles, y devolver parte de la fracción en vapor de cabeza después de condensación a la columna en forma de un reflujo líquido que mantiene una relación de reflujo de al menos 200:1 expresada sobre el producto destilado, retirar una corriente lateral de etanol acuoso purificado sustancialmente exento de todas las impurezas del plato de extracción lateral de producto por debajo del punto de alimentación del etanol bruto, alimentar el etanol acuoso purificado en la mitad inferior y opcionalmente álcali acuoso en la mitad superior de una columna de rectificación, trabajando dicha columna a temperaturas entre 71º y 121ºC, recircular una corriente de purga de cabeza que contienen acetaldehido y otras impurezas a la alimentación de etanol bruto a la columna de hidro-selección y retirar un azeótropo de etanol-agua sustancialmente puro que contienen menos de i ppm de cualquiera de las impurezas, excepto metanol, en la alimentación de etanol bruto en forma de una corriente lateral desde un punto por encima de la alimentación de alcalí acuoso, si existe, a la columna y un efluente acuoso alcalino sustancialmente exento de etanol desde la base de la columna
ES485369A 1978-10-28 1979-10-25 Un procedimiento para purificar etanol bruto para obtener unazeotropo de etanol-agua sustancialmente puro Expired ES485369A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7842368 1978-10-28

Publications (1)

Publication Number Publication Date
ES485369A1 true ES485369A1 (es) 1980-10-01

Family

ID=10500672

Family Applications (1)

Application Number Title Priority Date Filing Date
ES485369A Expired ES485369A1 (es) 1978-10-28 1979-10-25 Un procedimiento para purificar etanol bruto para obtener unazeotropo de etanol-agua sustancialmente puro

Country Status (14)

Country Link
US (1) US4308109A (es)
EP (1) EP0010927B1 (es)
JP (1) JPS6261006B2 (es)
AU (1) AU525233B2 (es)
CA (1) CA1142875A (es)
DE (1) DE2965393D1 (es)
DK (1) DK265380A (es)
ES (1) ES485369A1 (es)
FI (1) FI793330A7 (es)
IE (1) IE48505B1 (es)
NO (1) NO152695C (es)
NZ (1) NZ191965A (es)
PT (1) PT70377A (es)
WO (1) WO1980000836A1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8003405A (nl) * 1980-06-12 1982-01-04 Shell Int Research Werkwijze voor het bereiden van ethanol.
CA1166595A (en) * 1980-12-06 1984-05-01 William T. Woodfin Method of producing ethanol-water azeotrope from crude ethanol
DE3203440A1 (de) * 1982-02-02 1983-08-11 Chemische Werke Hüls AG, 4370 Marl Verfahren zur trennung von gemischen aus paraffin bzw. paraffinen mit 6 bis 14 c-atomen und alkohol bzw. alkoholen mit 4 bis 8 c-atomen
US5985100A (en) * 1995-08-30 1999-11-16 Basf Aktiengesellschaft Process for separating butanol and dibutyl ether by means of dual-pressure distillation
MY153731A (en) 2007-12-27 2015-03-13 Gevo Inc Recovery of higher alcohols from dilute aqueous solutions
US8884080B2 (en) 2010-07-09 2014-11-11 Celanese International Corporation Reduced energy alcohol separation process
US8536384B2 (en) 2010-07-09 2013-09-17 Celanese International Corporation Recovering ethanol sidedraw by separating crude product from hydrogenation process
WO2012149158A1 (en) * 2011-04-26 2012-11-01 Celanese International Corporation Recovering ethanol sidedraw by separating crude product from hydrogenation process
AR104100A1 (es) * 2016-03-21 2017-06-28 Porta Hnos S A Plantas de destilación de alcohol de cereales
FR3090393B1 (fr) * 2018-12-20 2021-04-23 Ifp Energies Now Procédé de traitement d’une charge alcool pour la production d’oléfines
CN113262509B (zh) * 2021-04-30 2023-06-30 浙江建业化工股份有限公司 一种从二异丁酯制备过程回收的异丁醇的处理系统及异丁醇处理方法
CN115364504B (zh) * 2022-08-29 2024-04-16 陕西延长石油（集团）有限责任公司 一种乙醛乙醚的分离系统和方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR689914A (fr) * 1929-04-23 1930-09-12 Distilleries Des Deux Sevres Appareil de rectification directe pour l'obtention d'alcool pur
US2638440A (en) * 1948-05-01 1953-05-12 Standard Oil Dev Co Purification of crude aliphatic alcohols
US2551626A (en) * 1948-06-24 1951-05-08 Standard Oil Dev Co Separation of normal alcohols from branched chain alcohols
FR975923A (fr) * 1948-12-31 1951-03-12 Standard Oil Dev Co Procédé de purification d'alcools aliphatiques bruts
US2640017A (en) * 1949-07-14 1953-05-26 Standard Oil Dev Co Production of substantially pure and anhydrous alcohols by distillation
GB758095A (en) * 1952-09-18 1956-09-26 Barbet Ets Improvements in or relating to the removal of volatile impurities from alcohol by extractive distillation
FR1167670A (fr) * 1954-10-12 1958-11-27 Nat Petro Chem Procédé chimique de purification des alcools aliphatiques
US2836545A (en) * 1954-12-23 1958-05-27 Exxon Research Engineering Co Water extractive distillation of ethanol
US2865818A (en) * 1955-06-13 1958-12-23 Nat Petro Chem Processing of alcohols
US2806816A (en) * 1955-09-15 1957-09-17 Exxon Research Engineering Co Process for improving alcohol quality
US2910412A (en) * 1955-10-17 1959-10-27 Nat Petro Chem Alcohol purification process
FR1167053A (fr) * 1955-10-17 1958-11-20 Nat Petro Chem Procédé de purification des alcools
US3014971A (en) * 1958-12-17 1961-12-26 Exxon Research Engineering Co Method of improving the permanganate time of ethyl alcohol
US3230156A (en) * 1961-09-08 1966-01-18 Chemical Construction Corp Purification of synthetic methanol by plural stage distillation
US3445345A (en) * 1968-05-08 1969-05-20 Raphael Katzen Associates Extractive distillation of c1 to c3 alcohols and subsequent distillation of purge streams
DE2106073C3 (de) * 1971-02-09 1982-04-01 Chemische Werke Hüls AG, 4370 Marl Verfahren zur Reinigung von C↓1↓-C↓3↓-Alkanolen
US3990952A (en) * 1974-10-10 1976-11-09 Raphael Katzen Associates International, Inc. Alcohol distillation process

Also Published As

Publication number Publication date
IE791951L (en) 1980-04-28
EP0010927A1 (en) 1980-05-14
WO1980000836A1 (en) 1980-05-01
US4308109A (en) 1981-12-29
DE2965393D1 (en) 1983-06-16
JPS6261006B2 (es) 1987-12-18
NO152695C (no) 1985-11-06
AU5225479A (en) 1980-05-15
NO793449L (no) 1980-04-29
DK265380A (da) 1980-06-20
CA1142875A (en) 1983-03-15
AU525233B2 (en) 1982-10-28
PT70377A (en) 1979-11-01
NO152695B (no) 1985-07-29
EP0010927B1 (en) 1983-05-11
FI793330A7 (fi) 1981-01-01
IE48505B1 (en) 1985-02-06
NZ191965A (en) 1981-04-24
JPS55500864A (es) 1980-10-30

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