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1. EP3541489 - METHODS AND APPARATUS FOR SEPARATING ETHANOL FROM FERMENTED BIOMASS

Office European Patent Office
Application Number 18708302
Application Date 20.02.2018
Publication Number 3541489
Publication Date 25.09.2019
Publication Kind B1
IPC
B01D 3/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
B01D 3/16
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation
16Fractionating columns in which vapour bubbles through liquid
B01J 19/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
30Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
B01J 19/32
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
32Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
CPC
B01D 3/001
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
001Processes specially adapted for distillation or rectification of fermented solutions
B01D 3/002
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
001Processes specially adapted for distillation or rectification of fermented solutions
002by continuous methods
B01D 3/009
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
009in combination with chemical reactions
B01D 3/16
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation ; or use of a fractionation or rectification column
16Fractionating columns in which vapour bubbles through liquid
B01D 3/38
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
34with one or more auxiliary substances
38Steam distillation
B01D 5/006
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
5Condensation of vapours; Recovering volatile solvents by condensation
0057in combination with other processes
006with evaporation or distillation
Applicants HAMRICK EDWARD BRIAN
Inventors HAMRICK EDWARD BRIAN
Designated States
Title
(DE) VERFAHREN UND VORRICTHUNG ZUR TRENNUNG VON ETHANOL AUS FERMENTIERTER BIOMASSE
(EN) METHODS AND APPARATUS FOR SEPARATING ETHANOL FROM FERMENTED BIOMASS
(FR) METHODE ET APPAREIL POUR SEPARER DE L'ETHANOL ET DE LA BIOMASSE FERMENTÉE
Abstract
(EN)
A method for separating ethanol from fermented biomass is provided. Fermented biomass that is rich in ethanol is used directly as packing material in a distillation column, and a small amount of water at the bottom of the column is used to efficiently transfer heat to the biomass at the bottom of the column. The fermented biomass packing has a high ratio of surface area to volume, making an efficient packing material. As vapor condenses on the biomass, diffusion of ethanol/water vapor from the body of the biomass enriches the ethanol concentration at the surface of the biomass. Droplets containing lower concentrations of ethanol drip downwards from the biomass, and vapors containing higher concentrations of ethanol rise upwards from the biomass, resulting in a higher concentration of ethanol at the top of the column than was initially in the biomass.

(FR)
La présente invention concerne un procédé de séparation d'éthanol à partir de biomasse fermentée. La biomasse fermentée qui est riche en éthanol est utilisée directement comme matériau de garnissage dans une colonne de distillation, et une petite quantité d'eau au fond de la colonne est utilisée pour transférer efficacement de la chaleur à la biomasse au fond de la colonne. La garnissage de biomasse fermentée a un rapport élevé entre la surface et le volume, ce qui rend le matériau de garnissage efficace. A mesure que la vapeur se condense sur la biomasse, la diffusion d'éthanol/vapeur d'eau à partir du corps de la biomasse enrichit la concentration en éthanol à la surface de la biomasse. Des gouttelettes contenant des concentrations basses en éthanol tombent vers le bas à partir de la biomasse, et des vapeurs contenant des concentrations plus élevées en éthanol montent à partir de la biomasse, ce qui permet d'obtenir une concentration plus élevée en éthanol au sommet de la colonne qu'auparavant dans la biomasse.