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Ludwig Hermann, Outotec - DeBugger Project
The document presents the Outotec debugger project focused on biomass drying, thermal conversion, and nutrient recycling, highlighting the technological advancements for efficient resource recovery. It outlines the need for nutrient management to address environmental issues like eutrophication and showcases the energy-efficient closed-loop steam drying process. The results of gasification tests indicate that sewage sludge and manure can be effectively processed to yield syngas comparable to wood pellets.
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Ludwig Hermann, Outotec - DeBugger Project
- 1. DeBugger Project Biomass CLSdryer, thermal conversion and P recycling Ludwig Hermann, Robert Johansson, Tanja Schaaf, Alexandra Ferreira, Andreas Orth Recycle nutrients, clear the waters - Forum for Action Helsinki, 20.04.2016
- 2. © Outotec –All rights reserved Agenda Working for resource efficiency • This is Outotec • Motivation • DeBugger Project - Biomass CLS Dryer - Biomass gasification DeBugger - Biomass CLS Dryer, thermal conversion and P recycling2 April 2016 Zürich – the most efficient sludge conversion plant
- 3. © Outotec –All rights reserved Local operations, global presence Wide supplier network with established long-term relationships April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling3 R&D, sales and service centers in 32 countries Deliveries to more than 80 countries Experts of over 60 nationalities Sales 1.2bn EUR in 2015 Over 4,800 employees Listed on Nasdaq Helsinki since 2006 Services 43 % of sales Environmental goods and services 90% of orders 3rd most sustainable company
- 4. © Outotec –All rights reserved Extended scientific cooperation network April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling4
- 5. © Outotec –All rights reserved Agenda Working for resource efficiency • This is Outotec • Motivation • DeBugger Project - Biomass CLS Dryer - Biomass gasification DeBugger - Biomass CLS Dryer, thermal conversion and P recycling5 April 2016
- 6. © Outotec –All rights reserved DeBugger - Biomass CLS Dryer, thermal conversion and P recycling6 Sustainable use, recovery and recycling of resources SERVICES AND SOLUTIONS April 2016
- 7. © Outotec –All rights reserved European water bodies affected by eutrophication April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling7
- 8. © Outotec –All rights reserved We need to use nutrients where plants need them and not where humans and animals excrete them! April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling8
- 9. © Outotec –All rights reserved Agenda Working for resource efficiency • This is Outotec • Motivation • DeBugger Project - Biomass CLS Dryer - Biomass gasification DeBugger - Biomass CLS Dryer, thermal conversion and P recycling9 April 2016
- 10. © Outotec –All rights reserved DeBugger – closing the biomass process chain April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling10 Relevant renewable energy and secondary P-Flows in the EU28 Renewable energy yield (technical potential) of EU28 sludge and manure: 620 TWh (2,230,000 TJ) = 3 – 5% of total European energy supply
- 11. © Outotec –All rights reserved Key to nutrient recovery and recycling – efficient drying April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling11 Large scale Closed Loop Steam Dryer for wooden bio-pellets Storuman CHP, 32 MW, Sweden • 105,000 t/y bio-pellets • 48 GWh/y electricity • 40 GWh/y district heating
- 12. © Outotec –All rights reserved Conventional dryer – basic principle April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling12 Energy consumption: 800-1200 kWh/t H2O „Normal“ dryer Wet material Heat Dried material Water vapor (moisture from material)
- 13. © Outotec –All rights reserved Biomass CLS Dryer – basic principle April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling13 „CLS“ Dryer Wet material Heat Steam 20 bar Dried material No water vapor, No heat loss (evaporation) Heat Steam 5 bar Water condensate (moisture from material) Energy consumption: 300-400 kWh/t H2O
- 14. © Outotec –All rights reserved Pilot plant main data April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling14 Footprint 5 x 15 m Height 30 m Pipe diameter 300 mm Boiler power 600 kW Capacity 500 kg/h
- 15. © Outotec –All rights reserved Advantages • Highly energy efficient – low internal energy consumption • Completely closed process – no gaseous emissions • No need for gas cleaning stage – no odors • Few mechanical components • ATEX safe – steam environment • Able to dry to high dry matter levels >90% • Condensate can serve as a sink April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling15
- 16. © Outotec –All rights reserved Agenda Working for resource efficiency • This is Outotec • Motivation • DeBugger Project - Biomass CLS Dryer - Biomass gasification DeBugger - Biomass CLS Dryer, thermal conversion and P recycling16 April 2016 VergaserRegenerator H2-reiches Gas CO2-reiches Gas L-ventil Fließbettkühler Tertiärluft Sekundärluft Siphon Brennstoff Dampf Luft /O2+CO2 CaCO3& Koks Source: IFK, University Stuttgart
- 17. © Outotec –All rights reserved Twin FB Steam Gasification Process Slurries tested as fuel for gasification and downstream processing in bio- refineries: • Sewage sludge • Cattle manure • Pig manure • Up to now in several test campaigns sewage sludge, pig manure, cattle manure and wood pellets (as reference fuel) were gasified in the steam gasification process • Temperature, steam-to-carbon ratio and bed material were varied and assessed April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling17 air flue-gas bed material bed material char fuel syngas Gasification T=750-850°C Combustion T=850 - 950°C energy steam Source: Schweitzer, D., IFK, University Stuttgart
- 18. © Outotec –All rights reserved Results of gasification tests • At temperatures of 800°C the gas yield of sewage sludge is only slightly lower than gas yield of wood pellets and the gas yield of manure is almost the same as wood pellets • Syngas composition of sewage sludge and wood pellets is similar • H2 concentration rises with increasing temperature, CO2, CH4 and CxHy concentration decreases April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling18 0.4 0.6 0.8 1 1.2 700 750 800 850 gasyieldinm³STP/kgfuel,daf temperature in °C steam-to-carbon ratio: 1.5 molH2O/molC sewage sludge wood pellets 0% 20% 40% 60% 80% 100% wood pellets sewage sludge gascompositioninvol-%dry,N2-free steam-to-carbon ratio: 1.5 molH2O/molC temperature: 810°C CO2 CxHy CH4 CO H2 Source: Schweitzer, D., IFK, University Stuttgart
- 19. © Outotec –All rights reserved Reference plant Rüdersdorf Design data: • Thermal capacity: 100MW • Fuels: Carbonic ashes, RDF, sludge • Product gas: 60 000 m³/h, 3-5.3MJ/m³, 860-920°C • Ash: <1% carbon Advantages: • Independent of fuel ash composition and no need of raw material feed adjustment to meet product quality • Wide fuel range (coal, biomass, RDF, sewage sludge, carbonic ashes,....) • Sewage sludge - Phosphor-recovery from gasification ash possible April 2016 DeBugger - Biomass CLS Dryer, thermal conversion and P recycling19 CFB Gasifier
- 20. Thank you foryour attention ludwig.hermann@outotec.com
Editor's Notes
- #7 We provide resource efficient solutions that reduce water and energy consumption and waste production as well as improve metals recovery, reuse and recycling of materials - improving asset performance as a whole.