publication . Article . 2015

Enrichment of thallium in fly ashes in a Spanish circulating fluidized-bed combustion plant

M. Antonia López-Antón; D.Alan Spears; Mercedes Díaz-Somoano; Luis Morier Díaz; M. Rosa Martínez-Tarazona;
Open Access
  • Published: 01 Jan 2015 Journal: Fuel, volume 146, pages 51-55 (issn: 0016-2361, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Spain
Abstract
This work evaluates the behavior of thallium in a 50 MW industrial circulating fluidized-bed combustion plant (CFBC), focusing on the distribution of this element among the bottom and fly ashes separated by the solid retention devices in the plant. The results show that thallium species are mainly retained in the solid by-products and are not emitted to air with flue gases in significant amounts, proving that this technology is a more effective means of preventing thallium emissions than pulverized coal combustion technology (PCC). The mass balance of the thallium content in the solids shows that this element was retained in the ashes separated by the different ...
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Subjects
free text keywords: Coal combustion, Circulating fluidized bed combustion, Toxic emissions, Heat recovery ventilation, Flue gas, Pulverized coal-fired boiler, Chemistry, Thallium, chemistry.chemical_element, Metallurgy, Combustion, Coal combustion products, Electrostatic precipitator, Fluidized bed combustion
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