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Formation of ultrafine particles during coal combustion is believed to be governed by the solid–vapor–particle process of evaporative inorganic species. In this work, a down-fired flat-flame burner with a two-stage dilution sampling system were used to characterize the particulate matter formed in the early stage of high-sodium coal combustion. It was found that 33.9% of Na and 33.1% of Mg in the...
Zhundong coal is one of the most important coals in China due to its huge reserve, but it causes severe fouling and slagging problems when it is burnt in boilers for its high AAEMs (alkali and alkaline earth metal species) contents. Accurately determination of the occurrence modes and contents of AAEMs in Zhundong coals is a necessary step to overcome the ash-related problems. Nowadays, different...
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