Sonia Helle

Char characterization and DTF assays as tools to predict burnout of coal blends in power plants

Claudia Ulloa, Ángeles G. Borrego, Sonia Helle et al. · Fuel · 2004 · 62 citations · Full text

Char Characterization, Engineering, Energy Efficiency +4

Coal blend combustion: link between unburnt carbon in fly ashes and maceral composition

Sonia Helle, Alfredo L. Gordon, Guillermo Alfaro et al. · Fuel Processing Technology · 2003 · 55 citations · Full text

Chemical Engineering, Carbon Sequestration, Engineering +7

Chemical-mineralogical characterization of copper smelting flue dust

Eduardo Balladares, Ursula Kelm, Sonia Helle et al. · DYNA · 2014 · 41 citations · Full text

Morphological Information, Engineering, Chemistry +16

Coal blend combustion: fusibility ranking from mineral matter composition☆

Ch. Goñi, Sonia Helle, Alfredo L. Gordon et al. · Fuel · 2003 · 32 citations · Full text

Chemical Engineering, Engineering, Combustion Science +3

Distribution of trace elements in soils surrounding the El Teniente porphyry copper deposit, Chile: the influence of smelter emissions and a tailings deposit

Ursula Kelm, Sonia Helle, Romy Matthies et al. · Environmental Earth Sciences · 2008 · 30 citations

Environmental Chemistry, Biogeochemistry, Engineering +10