TO-SYN-FUEL: Turning Sewage Sludge Into Fuels And Hydrogen

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sewage treatment plant

TO-SYN-FUEL will turn sewage sludge into fuels and hydrogen.
CC Dan DeLuca

In December 2016 the European Commission released its proposal for the RED II, the Renewable Energy Directive for the post 2020 period. This proposal introduces a gradual phase-out of conventional biofuels and sets a minimum target for advanced biofuels for transports. Therefore there is an urgent need to bring innovative biofuels from sustainable raw materials to the market.

Twelve SMEs, industrial, and scientific partners, co-ordinated by Fraunhofer UMSICHT, are participating in a new ambitious research project named TO-SYN-FUEL which will build, operate, and demonstrate the production of Synthetic Fuels and Green Hydrogen from waste biomass. Building and extending from previous framework funding, the project is designed to set the benchmark for future sustainable development and growth within Europe and will provide a real example to the rest of the world of how sustainable energy, economic, social, and environmental needs can successfully be addressed.

TCR® Technology As A Possible Solution

The TCR® technology developed by Fraunhofer UMSICHT could be the solution. The thermo-catalytic reforming TCR® produces renewable liquid fuels from waste biomass, which can replace fossil fuels. These fuels comply with European standards for gasoline and diesel EN228 and EN590 and have already been demonstrated on a pilot scale. The TCR® technology converts all kinds of residual biomass into three main products: H2-rich synthesis gas, biochar, and liquid bio-oil which can be upgraded. By high pressure hydro-deoxygenation HDO and conventional refining processes, a diesel or petrol equivalent is created in the distillation and is ready to be used directly in internal combustion engines.

To demonstrate and validate the technical and commercial viability of this integrated approach, this project will combine in one plant TCR®, HDO, and pressure swing adsorption PSA, together with respective environmental and social sustainability mapping. The main objective is to create TCR® and HDO and the separation of H2 through the combination of a new value chain. Within the project biogenic residues or organic residues are converted into useful, inexpensive, and high-performance synthetic fuels on a demonstration scale. The scale-up of one hundred such plants installed throughout Europe would avoid GHG emissions equivalent to five millions people per year and divert millions of tonnes of organic wastes from landfills to sustainable biofuel production. As a result, the TCR® technology opens up long-term opportunities to convert organic waste into renewable fuels and to directly implement these fuels into existing petroleum infrastructure.

Dr.-Ing. Robert Daschner, Head of the Renewable Energy Department at Fraunhofer UMSICHT and Project Management Officer, comments, “In this project we want to produce green diesel from waste, which in this particular case will be sewage sludge. In the next four years we will build-up, operate, and demonstrate the technology and by the end of the project we want to have a business case for green fuels in order to support the targets of the European Commission.”

To achieve this goal, the TO-SYN-FUEL project is divided into ten landmarks, each associated with a corresponding work package. In addition, the project will increase the acceptance of biofuels and show the general public that the new diesel and gasoline equivalent synthetic fuel is competitive with fossil fuels.

Prof.Dr. Andreas Hornung, Director of Fraunhofer UMSICHT in Sulzbach-Rosenberg and Chair of the Project Board, notes, “We are happy to start this project which will be a major change for the behavior in the future use of green fuels and sustainable fuels. With its demonstrator in Rotterdam Harbour, the project will show how simple it is to generate green fuels from biogenic residues and wastes, and also to deliver hydrogen and syngas for future synthesis.”

Project Partners

The consortium of 12 partner organizations has brought together some of the leading researchers, industrial technology providers, and renewable energy experts from across Europe in a combined, committed, and dedicated research effort to deliver the overarching ambition. Partners are: Engie Services Netherlands NV, HyGear Technology and Services BV, Slibverwerking Noord-Brabant NV (The Netherlands), Verfahrenstechnik Schwedt GmbH, Susteen Technologies GmbH (Germany), Alma Mater Studiorum – University of Bologna, ENI SpA, ETA–Florence Renewable Energies (Italy), University of Birmingham, WRG Europe Ltd (UK), and LEITAT (Spain).

The project has a total duration of 48 months from May 2017 to April 2021 and will be funded by the European Union under the Horizon 2020 program.

Fraunhofer UMSICHT actively shapes the energy transition and the raw materials shift. As a pioneer for technical innovations in the fields of energy, processes, and products, Fraunhofer UMSICHT aims at advancing sustainable economies, environmentally friendly technologies, and innovative approaches. Our wish is to improve the standard of living and to promote the innovation capacity of the national economy.

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