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Thermal Process Engineering
Projekt Green Biorefinery
Project Green Biorefinery Upper Austria
Membrane based production of lactic acid and amino acids
Judith Ecker
Michael Harasek
[email protected],
[email protected]
Achema 2012
Institute of Chemical Engineering
page 1
Thermal Process Engineering
Project Green Biorefinery
Realisation of a novel process
 Licence based on Austrian Patent AT 000000504206 (2008)
 General definition Biorefinery:
„A biorefinery is a facility that integrates biomass conversion processes and
equipment to produce fuels, power and chemicals from biomass. The biorefinery
concept is analogous to today‘s petroleum refineries, which produce multiple fuels
and products from petroleum“
(http://www.nrel.gov/biomass/biorefinery.html)
Fig: Map of Austria
Achema 2012
Fig: Ultrafiltration: housing for ceramic module
Institute of Chemical Engineering
page 2
Thermal Process Engineering
Project Green Biorefinery
Definition of Green Biorefinery Upper Austria
Integrative system for the utilisation of grass silage juice to gain
different valuable products such as proteins (solution), amino
acids (solution or powder), lactic acid (solution) and energy.
Realisation
 Intelligent combination of
membrane based downstream
technologies and ion exchanger
 Complex process
 Continuous procedure
 Water re-using (closed water cycle)
Achema 2012
Fig: Flowsheet, Lacitc acid concentrated in the
NF permeates, Amino Acids enriched in
the NF retenates
Institute of Chemical Engineering
page 3
Thermal Process Engineering
Project Green Biorefinery
Process description
 Pretreatment
-
 Specific Lacitc Acid
Production
• Novel hybrid process
• Combination of several
•
•
•
Sedimentation
Ultrafiltration
Softening
 Specific Amino acids
production
• Ion Exchanger:strong cation
exchange resin
membrane processes
multistage Nanofiltration
Reverse Osmosis
Electrodiaylis
Fig. : Ion Exchanger column filled with resin
Achema 2012
Institute of Chemical Engineering
page 4
Thermal Process Engineering
Project Green Biorefinery
Multistage Membrane Based Concentration of thin solutions
Lactic acid
•
•
•
Amino acids
• Production of powder (spray
Diluated solution
Further concentration (RO)
Raw material for
•
- Ethyl-lactate
- Acidifier in the nutrition industry
drying)
Applications in
- food industry
- Cosmetics
Additives in animal feeding
- Methionine (chicken
breeding)
- Lysin (pig fattening)
Achema 2012
Institute of Chemical Engineering
page 5
Thermal Process Engineering
Project Green Biorefinery
Sponsors
Achema 2012
Institute of Chemical Engineering
page 6
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