Anaerobic Digestion of High Solid Material like Farm Yard Manure. Jørgen Fink Country Manager Xergi Limited

Transcription

1 Anaerobic Digestion of High Solid Material like Farm Yard Manure Jørgen Fink Country Manager Xergi Limited

2 Traditional, mainly slurry and Problem and Solution energy crops in the majority of European biogas plants Lots of solid manure available but difficult to handle Slurry is easy to handle but low energy content Energy crop no longer acceptable at large scale Solid manure is difficult to handle but have a high energy content Solution is pre-treatment of the solid manure and similar 2 waste streams before entering the digester

3 Xergi Standard Biogas Plant Concept Biomasses Reception Facilities Pretreatment Processing Facilities Energy output Organic industrial waste GASMAX Biogas Secondary digester Animal manure Gas upgrading Deep Litter Digestate Household waste FLEXFEED CHP unit Separation Energy crops Fertilizer Liquid fraction Solid fraction

4 Own developed key technologies X-chopper pretreatment technology for deep litter, straw, beets, vegetables etc. X-belt and X-hopper for seamless system integration NiX pretreatment technology for poultry manure Flexfeed feeding system for process optimization 4

5 Background for the X-chopper Development Initiated by clients wanting to include: - Solid biomass difficult to handle but with high gas potential (for example farm yard manure/deep litter, straw, grass, vegetable waste) - With a minimum energy demand for the pre-treatment Existing solutions for pre-treatment were not acceptable in relation to the functioning and the energy demand

6 Configuration X-hopper X-belt X-chopper

7 X-hopper

8 X-belt

9 X-chopper

10 Operation experiences Energi Vegger, Denmark 1987: Operation start 2013: 3-4 times increase in capacity Installation of X-chopper Tiper Methanisation, France 2012: Operation start 2014: Hammer mill replaced by X-chopper Beeswax Farming, United Kingdom 2015: Installation of X-chopper at new plant Hometown Bioenergy, USA 2013: Operation start 2015: Installation of X-chopper NGF Nature Energy Holsted, Denmark 2015: Installation of 2 X-choppers at new plant NGF Nature Energy Nordfyn, Denmark 2016: Installation of X-chopper at new plant NGF Nature Energy Midtfyn, Denmark 2016: Installation of X-chopper at new plant

11 Vegger, Denmark Operating start 1987, major expansion in 2013 Feedstock: Industrial waste, solid manure and slurry Digester volume: 4,000 m 3 (primary) 3,000 m 3 (secondary) Pretreatment technology: X-chopper Engines: 1.5 MWe Gas supply to nearby dairy plant

12 Beeswax Farming, United Kingdom Operation start Feedstock: maize silage and grass silage Digester volume: 9,000 m 3 Pretreatment technology: X-chopper Engines: 2 x 1,5 MWe

13 NGF Nature Energy, Holsted, Denmark Major utility company in DK with focus on use of upgraded biogas Operation start 2015 Feedstock: ~280,000 tons/year of pig and cattle slurry ~120,000 tons/year of solid manure, organic waste & energy crops Digester volume: 34,500 m 3 Pretreatment technology: X-chopper Gas upgraded to natural gas quality and piped to nearby gas network, capacity: ~13 million m 3 methane/year

14 NGF Nature Energy, Nordfyn, Denmark Major utility company in DK with focus on use of upgraded biogas Operation start Feedstock: ~225,000 tons/year of pig and cattle slurry ~75,000 tons/year of solid manure, organic waste & energy crops Digester volume: 22,500 m 3 Pretreatment technology: X-chopper Gas upgraded to natural gas quality and piped to nearby gas network, capacity: ~10 million m 3 methane/year

15 NGF Nature Energy, Midtfyn, Denmark Major utility company in DK with focus on use of upgraded biogas Operation start 2016 Feedstock: ~270,000 tons/year of pig and cattle slurry ~90,000 tons/year of solid manure, organic waste & energy crops Digester volume: 24,500 m 3 Pretreatment technology: X-chopper Gas upgraded to natural gas quality and piped to nearby gas network, capacity: ~11 million m 3 methane/year

16 Farm Yard Manure at Vegger Biogas, Denmark

17 Other Types of High Solid Material Straw, pre-treatment: X-chopper: high Opex with large volumes Ensiling of chopped straw: Low Opex, can also handle low quality straw. Require storage space Briquetting of straw: High Capex & Opex. High quality of the input to the digester. Volume reduction Pressure cooking: Very high Capex and Opex Poultry manure which is also high in nitrogen: Very high dry matter of broiler manure (60-65%) Mono digestion of poultry manure only possible if Addition of large quantities of water, or Nitrogen reduction Xergi has developed the NiX concept for this 17

18 18 Broiler Manure

19 19 NiX Poultry Power

20 Tully Biogas Plant, N. Ireland 3MWe AD plant with NiX 40,000 tpa of poultry litter Construction start: June 2016 Commissioning start: Autumn 2017 Full operational capacity: 1. quarter 2018 Xergi EPC Contractor Xergi 10 years O & M Contract advanced anaerobic digestion technology development

21 Tully Biogas Plant, Ballymena, N. Ireland

22 Thank you for your attention Jørgen Fink Country Manager Xergi Limited Tel: Mobile: