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The US4Greenchem project

Combined Ultrasonic and Enzyme treatment of Lignocellulosic Feedstock as Substrate for Sugar Based Biotechnological Applications

- The US4GREENCHEM Pilot plant  is being built in Finland and will run the first pilot-scale tests until end of march 2019 -

US4GREENCHEM aims to design a biorefinery concept for the complete valorization of lignocellulosic biomass that is energy- and cost- efficient and based solely on green technologies. The concept combines mechanical pretreatment of the substrate with the aid of ultrasound to overcome its recalcitrance and disrupt inhibitors with mild CO2 hemicellulose degradation and with the enzymatic recovery of sugars and technologies for the valorization of the byproducts released in the process.

Specifically the projects aim to:

  • Develop ultrasound (US) pretreatment that effectively disrupts the lignocellulosic matrix with reduced energy input and minimal production of inhibitory byproducts.
  • Further degrade lignocellulose with CO2 technologies to maximize release of sugars as main target products of the process. Once CO2 dissolves in water it forms carbonic acid which catalyses the hydrolysis of hemicellulose in mild conditions. Unlike the use of classical acids, the carbonic acid can be simply removed from the system by releasing pressure.
  • Develop purification and conversion strategies for lignin-based products, in order to maximize the material valorization of the biomass components, as High- grade lignin has the potential to become the main renewable source of aromatics for the chemical industry.
  • Valorize the solid residues of the product for energy
  • Optimize the yield and reduce the cost of enzymatic hydrolysis of cellulose fibers through the development of new enzymatic cocktails with improved thermal stability and reduced sensitivity to product inhibition, and the possibility to use enzymes at high solid loadings and recycle them
  • Test for fermentability of the sugar fraction
  • Propose effective integration and upscaling to strategies for pilot scale through the experienced industrial partners involved in the project
  • Perform a thorough analysis of the outcomes of the proposed combination of technologies to evaluate the potential economic and environmental impacts and compare the proposed concept to existing technologies on the market and technologies being currently developed.

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Partners

  • Verein zur Förderung des Technologietransfers der Hochschule Bremerhaven e.V. (TTZ)
  • UNIVERSITÀ DEGLI STUDI DI TORINO (UNITO)
  • Weber Ultrasonics GmbH (WU), Germany
  • Environmental Systems GmbH
  • Teknologian tutkimuskeskus VTT
  • JSC “BIOCENTRAS”
  • LATVIJAS VALSTS KOKSNES KIMIJAS INSTITUTS (LS IWC), Latvia
  • Feyecon Carbon Dioxide Technologies
  • Fundación Tecnalia Research & innovation
  • Jowat AG
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Get in touch

ttz Bremerhaven
Water, Energy and Landscape Management

Am Lunedeich 12
27572 Bremerhaven

Phone: +49 (0) 471 80934-200
Fax: +49 (0) 471 80934-299
E-mail: info@ttz-bremerhaven.de

This project has received funding from the Bio Based Industries Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No 669055

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