From forest to gas in the transmission system Ulf Molén, 2011-10-05
EU climate target 20/20/20 year 2020 Carbon dioxide reduced by 20% (compared to 1990 years level) Energy efficiency increased by 20% 20% energy production from renewable sources
Swedish Government policy Year 2020-50% of Swedish energy use based on renewable sources - CO 2 emission reduced by 40% - Energy efficiency increased by 20% - 10% renewable energy in transport sector Year 2030 - transport sector independent on fossil fuels Year 2050 - net contribution of CO 2 reduced to zero
Regional initiative Skånes Färdplan för biogas The leading biogasregion Centre of Excellence for biogas 2020 10 percent of the energy consumption of Skåne will be based on biogas production ( ~3 TWh, whereof 1,6 TWh based on thermal gasification) Region Skåne independent of fossil fuels 2020 Region Skåne (authority) will be 100 % free from fossil fuels 2020 Skåne pilot county for green development The Government has nominated Skåne as pilot county for the change-over to RES 4
Biogas in Sweden today and tomorrow Production through fermentation amounts to approx 1,5 TWh
Biogas from E.ON in the Swedish gas grid today Falkenberg40 GWh Laholm 25 GWh Bjuv 25 GWh Malmö 25 GWh
Vehicle gas in the Swedish system - a mixture of >50% biogas Biogas Uppgrading Biogas Natural gas Methane gas Mix Natural gas > 50% biogas is a need for political and market acceptance on the Swedish public gas vehicle market
Biogas in Sweden today and tomorrow Production through fermentation amounts to approx 1,5 TWh Estimated potential 15 TWh through fermentation Estimated potential 59 TWh through gasification
PleasGe overwrite text Raw materials Gasification plant Methanation plant National gas grid Biogas (Bio-SNG) Biogas is today primarly used as a transport fuel and for heating 9
Localisation alternatives Basic criteria Process area at least 50 000 m 3 Biomass storage and handling area at least 75 000 m 3 Distance to the national gas grid max 5 km Fuel supply via truck, train and ship 10
Site selection Evaluation based on the basic, environmental and technical/economical criteria has resulted in: Sweco recommended 8 suitable localisations E.ON has made 3 parallel public consultation processes in Helsingborg, Landskrona and Malmö for the environmental permit Preferred site will be selected October/November 2011 Environmental permit application (incl. EIA) early 2012 11
Biomass fuels (approx. 2,6 TWh/a) e.g. Forest residues e.g. branches, tops and stumps, fuel wood By-products from saw mills and pulp- and paper mills e.g saw dust, bark Agricultural products (e.g. straw, salix) Vegetable residual products from food industry (e.g. seed coat, nut shell) Residual wood (demolition wood) Fuel transport Truck (approx. 10 000 trucks/a) Train (300-450 sets/a) Ship (10-90 ships/a) 12
Schematic process diagram Forest Transport Fuel Reception/Preparation/Storage Fuel Dryer Auxiliary systems Cooling water, District Heating, Bulk material, etc Steam Electricity Dry Boiler/Turbine Air Separation Unit (ASU) Oxygen biofuel Compression Gas Cleaning Synthesis gas (H2, CO, tar, etc.) Gasification Clean syngas Methanation CH 4 CO 2 H 2O CO2 Removal Drying/Compression Biogas (Biomethane)
Key figures approx. 8 000 h/a operation Fuel 345 MW (boiler 40 MWth) Biogas 200 MW (1,6 TWh/a, 20 000 m 3 /h) CHP mode 14 MWe / 55 MWheat Cond. mode 23 MWe / 11 MWheat O&M staff 50-100 persons (approx. 150 incl. fuel handling) N 2 By-product - liquid N 2 possible CO 2 By-product H 2 SO 4 By-product Ash 20-25 ktons/a (ash and bed material)
Process area 50 000 m 2 (~150 x 350 m) Fuel drying Gasification/gas cleaning Flare Air separation unit Service building Buffer storage dried fuel Boiler and turbine Bed material Ashes Etc. Compression Methanation/ gas cleaning
Time schedule Demonstration methanation tech. Lessons learned from commissioning
Thank You for listening! www.eon.se/bio2g e-mail: bio2g@eon.se Bio2G project E.ON Gasification Development AB, a subsidiary of E.ON Sverige/Nordic 17