Group 07 Development Presentation
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ITI Energy has developed advanced gasification technology and wants to build an energy plant. The plant will use municipal solid waste as fuel and include mechanical biological treatment to produce pellets for gasification. The plant will generate electricity, heat and ash for construction materials. Key activities over 5 weeks include selecting equipment, designing site layout and logistics, finalizing building designs, and finishing tasks.
Group 07 Development Presentation
- 1. ITI Energy, College London
- 2. Our Client ITI Energy Limited Working in conjunction with Scotwaste Environmentally friendly company Specialises in gasification technology Developed patented advanced gasification design 10 years experience
- 3. The Brief Design buildings, fuel handling, ash handling and other buildings 8 Gasifiers using ITI technology Investigate and recommend most suitable MBT technologies Technology for pellet manufacture Advise on use of excess heat and bottom ash
- 4. Site Location 1 km North of Junction 4, M8 2.5km from Bathgate rail station Situated in the County of West Lothian, South West of Edinburgh
- 5. General Process Municipal Solid Waste Mechanical Biological Treatment Fuel Manufacturing Gasifier Syngas Electricity Exeter EfW Plant http://www.exeter-labour.org.uk/2012/05/08/energy-from-waste-plant/
- 6. Environmental & Waste Regulations Industrial Emissions Directive 2010/75/EU Integrated Pollution Prevention and Control Directive 2008/1/EC Waste Incineration Directive 2000/76/EC Environmental Protection Act 1990 Pollution Prevention and Control Regulations 2000 Environmental Permitting Regulations 2010
- 7. Health and Safety Welfare clean, comfortable working environment, comfortable and appropriate equipment Accidents slips, trips and falls, appropriate PPE, vehicle traffic, cuts and infections, appropriate and well maintained machinery Emergency procedures emergency shutdowns, fire evacuation plans, serious injury response
- 8. Main Income Streams Renewable Obligations Certificates received at a rate of about 2 per hour during normal operations can be sold to national electricity suppliers for about £40 each Gate fees for receiving waste a typical MBT plant receives about £80 per tonne of waste Selling generated electricity to a national supplier
- 9. Mechanical Biological Treatment Purpose: Reduce amount of waste going to landfill Reduce environmental impact Mechanical Processes Sorting Biological Processes http://www.etan.com.sg/biological2.php
- 10. MBT - Mechanical Bag Splitters and Shredders prepare material for mechanical sorting Industrial Magnets ferrous metals Eddy Current Separator non-ferrous metals Ballistic Separation and Air Classification aggregate, glass, ceramics
- 11. MBT – Biological Three typical processes Aerobic composting Aerobic bio-drying Anaerobic digestion Aerobic bio-drying most suitable treatment Partial aerobic decomposition to dry and stabilise waste Outputs solid recovered fuel (SRF) SRF used in gasification to produce energy
- 12. Pellets The Gasifier takes pellets as its input Improved performance More dense Less moisture More homogeneous Greater calorific value 14 briquetting machines http://www.tajagroproducts.com/images/NE 270 000 pellets per hour W%20FILE%20IMAGES/bricket_10452474.jpg 100 000 tonnes of pellets per year
- 13. Pellet Transport Briquetting machines 5 Day Storage Gasifiers Conveyor belts for transport Smart conveyor system Takes pellets to appropriate gasifier Potentially weigh at either end of the conveyor
- 14. Gasifier Type of Advanced Thermal Treatment Continuous thermal decomposition process Produces fuel gas which can be used to produce electricity with an internal combustion engine
- 15. Power Generation & Grid Connection Power produced by the gasifiers is sold to the grid Scottish Energy Transmission 33kV national grid connection in nearby Bathgate Possibility of private connections closer by. (Energy Networks Association, 2011)
- 16. Heat Exporting Recoverable heat is approximately 115% of gross power output Heat Exporting Two main ways of exporting energy Direct District Organic Rankine Heating Cycle No considerable heat demand in the area Consequences of direct district heating system failure are too high
- 17. Organic Rankine Cycle Organic Rankine Cycle (ORC) converts heat into electrical work. The heat is externally supplied to a closed system where high molecular mass fluid is used as working fluid ORC can particularly benefit smaller stations making plant operation more profitable (Pratt & Whitney Power Systems, n.d.)
- 18. Ash Inorganic or mineral content of biomass, which remains after gasification. non-hazardous waste amount of ash differs from types of feedstock Uses: Raw material for cement, bricks, structural fill, aggregates for concrete, road materials, land reclamation, soil modification RESI Corporation, http://www.resi.com.tw/Fluidization.htm
- 19. Site Design Looking ahead: Main Structures MBT Gasifier Plant Site Logistics Entrance/Exit Roads Storage Numerous Considerations i.e. proximity of households, legislation, etc…
- 20. Design Selection Appealing Design Case Studies Severnside energy from waste plant Exeter Amagerforbraending (Denmark) http://www.bustler.net/index.php/article/big_puts_a_ski_slope_on_c http://www.utilityweek.co.uk/news/images/195878.jpg openhagens_new_waste-to-energy_plant/
- 21. Schedule and Critical Activities Week 1: Preliminary Research Week 2: Technical Decisions and Site Layout MBT equipment selection Pelleting Method Power connection Week 3: Logistics and Building Design On-site Transportation Storage Structural Design Week 4 & 5: Finish Tasks, Finalise Report and Extras Visitors Center Monitoring & Landscaping
Editor's Notes
- #5: Pond industrial park is located in the West Lothian Council of Scotland. At the western gateway of Bathgate, and only 1km from the M8, it is conveniently located in between the two major cities of Edinburgh and Glasgow.