Waste to Carbon: Estimating the Energy Demand for Production of Carbonized Refuse-Derived Fuel

Autor: Paweł Stępień, Andrzej Białowiec, Jacek A. Koziel, Małgorzata Serowik
Jazyk: angličtina
Rok vydání: 2019
Předmět:
zero waste
Municipal solid waste
020209 energy
energy recovery
Geography
Planning and Development
Zero waste
TJ807-830
02 engineering and technology
010501 environmental sciences
Management
Monitoring
Policy and Law
CRDF
TD194-195
01 natural sciences
Renewable energy sources
refuse-derived fuel
0202 electrical engineering
electronic engineering
information engineering
Production (economics)
GE1-350
RDF
Process engineering
Refuse-derived fuel
0105 earth and related environmental sciences
waste to carbon
Energy recovery
Environmental effects of industries and plants
Renewable Energy
Sustainability and the Environment
Carbonization
business.industry
circular economy
computer.file_format
Torrefaction
municipal waste
Environmental sciences
torrefaction model
Environmental science
waste management
business
computer
Zdroj: Sustainability
Volume 11
Issue 20
Sustainability, Vol 11, Iss 20, p 5685 (2019)
ISSN: 2071-1050
DOI: 10.3390/su11205685
Popis: We have been advancing the concept of carbonized refuse-derived fuel (CRDF) by refuse-derived fuel (RDF) torrefaction as improved recycling to synergistically address the world&rsquo
s energy demand. The RDF is a combustible fraction of municipal solid waste (MSW). Many municipalities recover RDF for co-firing with conventional fuels. Torrefaction can further enhance fuel properties and valorize RDF. Energy demand for torrefaction is one of the key unknowns needed for scaling up CRDF production. To address this need, a pioneering model for optimizing site-specific energy demand for torrefaction of mixed RDF materials was developed. First, thermogravimetric and differential scanning calorimetry analyses were used to establish thermal properties for eight common RDF materials. Then, the model using the %RDF mix, empirical thermal properties, and torrefaction temperature was developed. The model results for individual RDF components fitted well (R2 &ge
0.98) with experimental torrefaction data. Finally, the model was used to find an optimized RDF site-specific mixture with the lowest energy demand. The developed model could be a basis for estimating a net energy potential from the torrefaction of mixed RDF. Improved models could be useful to make plant-specific decisions to optimize RDF production based on the energy demand that depends on highly variable types of MSW and RDF streams.
Databáze: OpenAIRE
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