Fundamental Study on Decomposition Characteristics of Mercury Compounds over Solid Powder by Temperature-Programmed Decomposition Desorption Mass Spectrometry
| Autor: | Masaki Ozaki, Saori Nagano, Shengji Wu, Md. Azhar Uddin, Eiji Sasaoka |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Flue gas
General Chemical Engineering Thermal decomposition Analytical chemistry Metacinnabar Energy Engineering and Power Technology Mineralogy chemistry.chemical_element Coal combustion products engineering.material Mercury (element) Fuel Technology chemistry Desorption medicine engineering Coal gas Activated carbon medicine.drug |
| Zdroj: | Energy & Fuels. 25:144-153 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef1009499 |
| Popis: | Stabilities and/or decomposition characteristics of mercury compounds are important for the design of solid sorbents for mercury vapor removal from coal-derived flue gas and fuel gas. However, available data on the stability and decomposition behavior of mercury compounds are inadequate. The stability and/or decomposition behavior of mercury compounds, such as HgS (metacinnabar and cinnabar), HgO, HgSO4, HgCl2, and Hg2Cl2, were investigated by the temperature-programmed decomposition and desorption technique using a mass spectrometer (TPDD−mass) method. The effects of solid diluents, such as quartz, SiC, Al2O3, TiO2, or activated carbon (AC), on the decomposition characteristics were also studied by the TPDD−mass method. In particular, the stability and reactivity of mercury chloride (HgCl2) in coal combustion flue gas and coal-derived fuel gas conditions were examined. The following results were obtained: (1) the order of the main peak temperature of mercury evolution from the decomposition of the mercur... |
| Databáze: | OpenAIRE |
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