Integrated Biorefinery for the Fractionation of Plant Residues with High Pressure Processes and Application of Added Value Streams for the Production of Bio-based Products

Dr. C. Zetzl

 

 

As the petrol era is facing its end, new resources for base chemicals, polymers and energy production need to be explored. Therefore, the conversion of biomass to high value products such as fine chemicals and biofuels has recently attracted the interest of scientists from academia and industry. Established processes are mainly based on the utilization of starchy substrates (1st genereation biorefinery), which are in direct competition with the food producing agricultural industries, while (often) leaving the main constituent of biomass resources unused. Biomass consists mainly of cellulose, hemicellulose and lignin followed by proteins and lipids. The goal of the second generation biorefinery is to integrate all added value streams into one biorefinery concept using lignocellulosic plant residues from different industries. The fractionation of added value streams is exemplarily depicted for the model substrate wheat straw:

 

 

Our motivation is to isolate these compounds or compound mixtures with a process cascade, which exclusively utilizes CO2, water and enzymes and to convert these into platform chemicals like glucose, xylanes and furfural. Currently, the use of lignin, as the second most abundant biopolymer and the main natural source of phenols, is gaining more attention.

These materials can be introduced into a sustainable production of scale for almost all needs in life science, energy and polymer producing technologies. These processes are contained in the term “biorefinery”. In analogy to an oil refinery, the biorefinery uses renewable sources as a feedstock and turns them into different product streams. Nevertheless, in order for this biorefinery to be economically viable, all its product streams should find use and application, exactly like in the oil refinery. Sequential isolation and possible use of the single fractions can be summarized as follows:

 

 

Find out about 10 years of lignocellulose biorefinery research at TVT

Summer School:

The TUHH-Institute for Thermal Separation Processes is taking active part in teaching at the annual European Summer School in High Pressure Technology, which has been held since 20 years by Prof. Thomas Gamse from the TU Graz.

Undergraduate / Grammar School:

TUHH Insitute for Thermal Separation Processes offers workshops with regional schools for the education of 2 G Biorefinery topics, namely the production and purification of Bioethanol.

 

Links/Cooperations:

 

Co-Workers:

 

Alumni:

  • Lisa Marie Schmidt (Konzeptionierung und Bewertung von Bioraffinerien zur Ligningewinnung basierend auf einem thermisch-enzymatischen Aufschluss)
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  • Dr. Robert Meyer (Ligninfunktionalisierung, Aerogele)
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  • Dr. Krishan Gairola (2013): Proteinhaltige Biomasse "Prozessintegrierte Wertstoffgewinnung aus protein- und lignocellulosereichen Reststoffen", Verteidigung: 15.11.2013, ISBN: 978-3-8440-2542-2
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  • Dr. Christian Kirsch (2016): Lignocellulose-Bioraffinerie, Enzyme unter Druck "Integrierte thermische und enzymatische Hydrolyse lignocellulosehaltiger Biomasse im Hochdruck-Festbett", Verteidigung: ISBN : 978-3-8439-2762-8
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  • Dr. Lilia Zenker (2016): Lignin-Aerogele, "Added-value for the 2nd Generation biorefinery: Isolation of lignin and its conversion into nanoporous materials", Verteidigung 29.9.2016

 

Concluded Projects:

Projektname Titel Förderzeitraum
DBU 13147-23 Bioethanol: Integrierter Prozess zur Produktion von Bioethanol aus natürlichen Rohhstoffen 07.06 - 12.08
DFG Br 846 / 25-2 Untersuchungen zur vollständigen Extraktion von organischen Substanzen durch Wasser und überkritische Fluide 05.05 – 04.08
BMBF -BRA 05/024 Added value on oleous products from the Amazon region by means of the application of supercritical fluids 04.06 - 02.08
EU FP6-2002-Mobility1 Supergreenchem, Green Chemistry in Supercritical Fluids: Kinetics, Phase Behaviour and Scale Up 07.04- 06.08
EU FP7-SME-2008-1 BrewPack : Multi Layer Biopolymer films demonstrating selective gas carrier and functional properties 03.09 – 02.11
DBU 13226-32 Wertschöpfung für die Bioethanolraffinerie der 2. Generation: Optimierung und Konversion von Glukanen und Xylanen10.09 – 03.11

 

Current Projects:

Bioraffinerie 2021 (http://www.bioraffinerie 2021), BMBF- Exzellenzcluster

  • Phase I 2009 – 2012 : http://bioraffinerie2021.de/ziele/phase-i-2009-2012/
  • Phase II 2012 – 2016 : http://bioraffinerie2021.de/ziele/phase-ii-2013-2015/
  • Phase III 2016 – 2018 : http://bioraffinerie2021.de/ziele/phase-iii-2016-2017/

Förderprogramm „Nachwachsende Rohstoffe“ des BMELV

"Stoffliche Nutzung von Lignin: Nanoporöse Materialen", FNR 22018312, 2014 - 2017 - Dr. Robert Meyer

Wissenschaftlich- Technische Zusammenarbeit mit Südafrika , BMBF - NRA

"Sustainable Production of Levulinic Acid from Sugar Cane Bagasse", BMBF- 01 DG 15001, 2015- 2017 - Lisa Marie Schmidt

 

Materials, Services and Equipment:

  • Bio MP- Lignin
  • Bio MP (Engineering Consultation for High Pressure Biomass Treatment)
  • Hot water hydrolysis (3 L und 40 L)
  • Stirred reactors (2 x 220 L und 20 L)
  • Decanter (Flottweg Z 18)
  • Extruder (Leistritz, ZSE 27 Maxx)
  • Batch SFE- equipment (40 mL bis 40 L)
  • Download Tool Batch SFE ( http://www.tuhh.de/v8/links-downloads/batch-sfe.html)
  • Soxhlet- Extraction

 Extruder (Leistritz, ZSE 27 Maxx)Decanter (Flottweg Z 18)

Stirred reactors (2 x 220 L)Hot water hydrolysis (40 L)