Conservation of Feedstock Nutrients in Pyrolysis Biochars Jatara Wise, PhD 31-7-2012.
ENERGY GENERATION FROM WASTE - CMI Marseille · 2018. 11. 5. · Istanbul Project. Pyrolysis...
Transcript of ENERGY GENERATION FROM WASTE - CMI Marseille · 2018. 11. 5. · Istanbul Project. Pyrolysis...
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ENERGY GENERATION
FROM WASTEFatih HOŞOĞLU
Operations ManagerIstanbul Metropolitan Municipality
Istanbul Environmental Management Company
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GENERAL INFORMATION
• The number of refugees in Turkey has reached over 3 million people, making Turkey
the host country with the largest refugee population in the world.
• 90% of the Syrians live outside of refugee camps
• Camp and non-camp waste management systems are different.
• Municipality services are planned according to the population. Thus, the services
sometimes are not sufficient because of the rapid influx of refugees.
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Waste Management in Host Cities in Turkey
• Refugees in cities should be integrated current waste management system.
• For camp waste management systems, collection and transportation of waste should be
developed.
• Reducing the waste amount
• Promoting the waste separation at the source
• Deciding best available technics and implementation
• A Project funded by U.S. State Department Bureau of Population, Refugees and
Migration (USBPRM) aims the effective waste management system in Gaziantep
Metropolitan Municipality.
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WASTE MANAGEMENT HIERARCHY
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WASTE MANAGEMENT
• There are several factors in converting wastes into energy and materials.
• Not possible to solve the waste problem and convert it to energy in “economical
way” by just buying and installing some equipment.
• Consideration of the vision of the city, environmental and health protection
regulations
• Selection of treatment method based on the energy or materials forms of the final
products and their market and prices treatment method.
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Solid Waste Disposal Technology
• Biologic Systems
• MBT
• Composting
• Biomethanization• Wet
• Dry
• Thermal Systems
• Incineration
• Gazification
• Pyrolysis
Landfill
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• Process of generating energy in the form of electricity and/or heat from
the primary treatment of waste
• There are a number of other new and emerging technologies that are able
to produce energy from waste and other fuels without direct combustion.
• Energy from waste technologies
– Thermal
– Non-Thermal
ENERGY from WASTE (EfW) orWASTE to ENERGY (WtE)
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THERMAL METHODS
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The most common and popular method
for waste to energy generation is
‘Incineration‘.
• Safety and environmental technology
• Thirty to forty years ago for reducing
the volume of waste
• Incinerators in operation are waste-to-
energy facilities
INCINERATION
Istanbul Project
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INCINERATION
http://www.metrovancouver.org/services/solid-waste/about/wte/Include/img/WTEfacilty.png
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Gasification converts carbonaceous substances
into carbon dioxide, carbon mono oxide and
some amount of hydrogen.
• Like incineration but high temperatures
• Fossil fuels or organic substances as raw
material
• Synthesis gas (syngas) for heat and electricity
Gasification
https://www.netl.doe.gov/File%20Library/Research/Coal/energy%20systems/gasification/gasifipedia/index.html
23 MWh Electricity
Istanbul Project
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Pyrolysis
Pyrolysis is the thermal decomposition of feedstock at a range of
temperatures in the absence of oxygen. The end product is a mixture of
solids (char), liquids (oxygenated oils), and syngas.
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Thermal Removal Methods - Comparisons
Incineration Pyrolysis Gasification
Reactiontemperature(°C)
800 – 1450 250 – 700 500 – 1600
Combustionchamber pressure(bar)
1 1 1–45
Environment Air Inert – Nitrogen O2,H2O
Stochiometric air rate
> 1 0 < 1
Gas phaseproducts
CO2, H2O, O2, N2
H2, CO, H2O, N2 H2, CO, CO2, CH4, H2O, N2
Solid phase products
Ash, Coal clinker
Ash, Coal clinker Coal clinker, Ash
Liquid phaseproducts
- Pyrolysis oil,Water
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Resource: “Reference Document on the Best Available Techniques for Waste Incineration”, European Comission Integrated PollutionPrevention and Control, Brüksel, 2006
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Anaerobic digestion in control and uncontrolled environmental conditions
– Landfill Gas
– Biomethanization Plant
Micro organisms are used to destroy the biodegradable content.
– No oxygen is present during this procedure.
– In developing countries for creating low energies for cooking and lighting in homes.
NON-THERMAL TECHNOLOGIES
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ENERGY GENERATION FROM LANDFILL GAS (LFG)
In a dumping area (open landfill), the oxygen can diffuse into the waste.
while the deeper part of the landfill goes through the anaerobic digestion,
• The methane present in landfill gas is a source of energy.
A typical landfill of a city with
• 100,000 inhabitants produces 500 m3/hour LFG
• 2,2 MWh kW energy, converted to 0,7-0,8 MWh electricity
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LFG Energy Plant
Inner CombustionEngine
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BIOMETHANIZATION
A better quality of methane can be
produced in digesters.
– wet digestion and dry digestion
– The wet digestion higher yield of methane
gas
Istanbul Project
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Anaerobic Digestion (Biomethanization)
http://www.neoenergyusa.com/biogas-process/
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INCINERATION vs BIOMETHANIZATION
An important factor to decide if the waste should be incinerated or digested
the amount of water
too wet, the energy added for incineration
the dry wastes to
incineration
wet wastes to
anaerobic digestion
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THANK YOU FOR
YOUR ATTENTION