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Modeling of Biofuel Combustion
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Metod för förbränning av biobränsle (Swedish)
Abstract [en]

Fortum Scandinavia’s future challenge is to develop the district heating system to be able to meet costumers and societies demand for affordable and sustainable heating. One way to reach those goals is to use biofuels in the coal-fired power and heating plant KVV6 at Värtaverket in Stockholm. Different types of biofuels could be used but it is important to understand their combustion processes and the chemical characteristics of the biofuels. During this project olive stone cross, palm shell kernel (PKS), lignin and the liquid biofuel crude glycerol where tested in a lab-scale combustor fitted with a quartz cylinder. The combustion process was filmed and the results showed that palm shell kernel is a very promising fuel to be used instead of coal, with glycerol used as a substituted for water to make paste, which is needed to be able to pump the fuel in to the PFBC at KVV6. The biofuels where also tested for alkali where the results showed that PKS have very low amounts of alkali while the glycerol have very high amounts which would be unfavorable in the PFBC at KVV6. Olive stone cross and lignin are also good substitutes for coal but they do have higher amounts of alkali compared to PKS.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Biofuel, combustion, sintering, fluidized bed, agglomeration
National Category
Chemical Process Engineering
Identifiers
URN: urn:nbn:se:kth:diva-40441OAI: oai:DiVA.org:kth-40441DiVA: diva2:441306
Subject / course
Chemical Engineering
Educational program
Master of Science in Engineering - Chemical Science and Engineering
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2011-11-28 Created: 2011-09-15 Last updated: 2011-11-28Bibliographically approved

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