Fouling tendency of ash resulting from burning mixtures of biofuels. Part 3. Influence of probe surface temperature

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Theis M, Skrifvars BJ, Zevenhoven M, Hupa M, Tran HH
Förläggare: ELSEVIER SCI LTD
Publiceringsår: 2006
Tidskrift: Fuel
Tidskriftsakronym: FUEL
Volym: 85
Nummer: 14-15
Artikelns första sida, sidnummer: 2002
Artikelns sista sida, sidnummer: 2011
Antal sidor: 10
ISSN: 0016-2361


Abstrakt

Mixtures of peat with bark and peat with straw were burned in a large lab-scale entrained flow reactor under controlled conditions, and deposits were collected on an air-cooled probe controlled at four to six different probe surface temperatures between 475 and 625 degrees C. The results show that the probe surface temperature has no effect on the deposition rate when peat is burned. When burning bark, either alone or in mixtures with peat, the deposition rate decreases with increasing probe surface temperature. When burning straw, either alone or in mixtures with peat, the deposition rate increases with increasing probe surface temperature up to 550 degrees C and remains constant at higher temperatures. The Cl content in the deposits decreases with increasing probe surface temperature, regardless of the mixture composition. In deposits obtained from burning peat-bark mixtures, K appears as K2SO4 when the deposition rate is low and as KCl when the deposition rate is high. In deposits obtained from burning peat-straw mixtures, no clear relationship is found between the deposition rate and the contents of Cl, S and K in the deposits.


Nyckelord

biofuels, co-firing, deposition, entrained flow reactor, probe temperature

Senast uppdaterad 2020-19-01 vid 03:47