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Integration of torrefaction in CHP plants - A case study
Mälardalens högskola, Framtidens energi.
Mälardalens högskola, Framtidens energi.ORCID iD: 0000-0002-9508-1733
Mälardalens högskola, Framtidens energi.ORCID iD: 0000-0002-6279-4446
Mälardalens högskola, Framtidens energi.ORCID iD: 0000-0001-9230-1596
2015 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 90, p. 427-435Article in journal (Refereed) Published
Abstract [en]

Torrefied biomass shows characteristics that resemble those of coal. Therefore, torrefied biomass can be co-combusted with coal in existing coal mills and burners. This paper presents simulation results of a case study where a torrefaction reactor was integrated in an existing combined heat and power plant and sized to replace 25%, 50%, 75% or 100% of the fossil coal in one of the boilers. The simulations show that a torrefaction reactor can be integrated with existing plants without compromising heat or electricity production. Economic and sensitivity analysis show that the additional cost for integrating a torrefaction reactor is low which means that with an emission allowance cost of 37 €/ton CO2, the proposed integrated system can be profitable and use 100% renewable fuels. The development of subsidies will affect the process economy. The determinant parameters are electricity and fuel prices.

Place, publisher, year, edition, pages
Elsevier , 2015. Vol. 90, p. 427-435
Keywords [en]
Biomass, Combined heat and power (CHP), District heating, Polygeneration, Torrefaction, Carbon dioxide, Coal, Cost benefit analysis, Costs, Sensitivity analysis, Additional costs, Combined heat and power, Combined heat and power plants, Electricity production, Emission allowances, Integrated systems, Poly-generation, Cogeneration plants
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:hig:diva-38328DOI: 10.1016/j.enconman.2014.11.019ISI: 000348886800040Scopus ID: 2-s2.0-84915745084OAI: oai:DiVA.org:hig-38328DiVA, id: diva2:1649049
Available from: 2014-12-19 Created: 2022-04-01Bibliographically approved

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Tomas Aparicio, ElenaLi, HailongDotzauer, Erik

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