Thermodynamic Investigation of Selected Metal Sulfates for Controlling Fouling and Slagging During Combustion

Fiseha Tesfaye, Mykola Moroz, Daniel Lindberg, Leena Hupa, In-Ho Jung

Forskningsoutput: Kapitel i bok/konferenshandlingKonferensbidragVetenskapligPeer review

Sammanfattning

Today, aside from the solar, wind and hydropower, solid biomass, municipal solid wastes and industrial wastes are increasingly becoming important sources of renewable energy. However, fouling, slagging and corrosion that are associated with the combustion processes of these renewable resources threaten long-term operation availability and costs of power plants. Alkali metal elements in the biomass fuel and the ash fusion behavior are the two major origins contributing to slagging during high-temperature biomass combustion. Slags accumulated on superheaters, which decrease thermal efficiency, often constitute complex combination of K-Ca-Mg-sulfates. However, thermodynamic properties of these sulfates and their combined effect with other phases, which will help to solve the fouling, slagging and high-temperature corrosion related problems in biomass combustion processes, are not well known. In this work, thermal stabilities including solubility limits of selected phases and phase mixtures in the MgSO4-K2SO4-CaSO4 system are both critically reviewed and experimentally studied. The obtained results are presented and discussed.

OriginalspråkOdefinierat/okänt
Titel på gästpublikation23rd International Conference on Fluidized Bed Conversion - Innovative Fluidized Bed Conversion Technology for a Sustainable Development
RedaktörerSang-Done Kim, Jong-Min Lee
FörlagThe Korean Institute of Chemical Engineers (KIChE)
Sidor1070–1077
ISBN (tryckt)978-89-950005-7-1
StatusPublicerad - 2018
MoE-publikationstypA4 Artikel i en konferenspublikation
EvenemangInternational Conference on Fluidized Bed Conversion (FBC) - 23rd International Conference on Fluidized Bed Conversion (FBC)
Varaktighet: 13 maj 201817 maj 2018

Konferens

KonferensInternational Conference on Fluidized Bed Conversion (FBC)
Period13/05/1817/05/18

Nyckelord

  • Renewable energy
  • Sulfates
  • Thermal stability
  • slagging and fouling

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