Title :
Characteristics of Mercury Release during Flue Gas Desulphurization Gypsum Reuse
Author :
Jin, Jing ; Li, Li ; Fan, Jun-jie ; Cao, Yan ; Zhu, Jiashun ; Pan, Wei-Ping
Author_Institution :
Coll. of Energy & Power Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
An investigation of the mercury release characteristics of four kinds of FGD gypsum during the heating process was conducted at a heating rate of 40°C/min in the air, in order to analyze the characteristics of mercury release during calcining and the heating process of gypsum products with FGD gypsum as a raw material. The results indicate that the main suitable temperature range for mercury discharging is between 200°C and 400°C during the heating process of FGD gypsum, with the mercury release rate falling off with a further increase of temperature. Further study on the distribution of mercury release showed that elemental mercury (Hg0) discharge is greater than divalent mercury (Hg2+) in the heating process of the FGD gypsum.
Keywords :
flue gas desulphurisation; mercury (metal); Hg; divalent mercury; elemental mercury discharge; flue gas desulphurization gypsum reuse; heating process; mercury release characteristics; raw material; Calcination; Combustion; Flue gases; Furnaces; Heat engines; Heating; Kirchhoff´s Law; Pollution; Temperature distribution; Test equipment;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448809
