Research output: Contribution to journal › Article › peer-review
Determination of mercury thermospecies in coal. / Mashyanov, N.; Pogarev, S.; Panova, E.; Panichev, N.; Ryzhov, V.
In: Fuel, Vol. 203, 2017, p. 973-980.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Determination of mercury thermospecies in coal
AU - Mashyanov, N.
AU - Pogarev, S.
AU - Panova, E.
AU - Panichev, N.
AU - Ryzhov, V.
PY - 2017
Y1 - 2017
N2 - The mercury concentration in coal varies in a wide range with the world average (the Clarke value) of 100 ppb. Mercury in coal can be represented by various forms having different matrix binding energy that govern different properties and behavior both in geochemical cycling and in technological processing. The technique of gradual heating (thermoscannig) of samples based on standard available equipment was developed to reveal and study the dynamic behavior of mercury release from coals. Analyses of coals of different types from deposits in Russia, Ukraine, and South Africa revealed the presence of various mercury thermospecies, part of which can be attributed to absorbed elemental mercury and mercury bound to pyrites. Microprobe analysis exhibited points of mercury accumulation up to tenths of percent by weight within coal organic matrix and mineral inclusions. The thermoscanning technique gives additional information about mercury speciation in coal for better understanding of mercury geochemistry in fossil
AB - The mercury concentration in coal varies in a wide range with the world average (the Clarke value) of 100 ppb. Mercury in coal can be represented by various forms having different matrix binding energy that govern different properties and behavior both in geochemical cycling and in technological processing. The technique of gradual heating (thermoscannig) of samples based on standard available equipment was developed to reveal and study the dynamic behavior of mercury release from coals. Analyses of coals of different types from deposits in Russia, Ukraine, and South Africa revealed the presence of various mercury thermospecies, part of which can be attributed to absorbed elemental mercury and mercury bound to pyrites. Microprobe analysis exhibited points of mercury accumulation up to tenths of percent by weight within coal organic matrix and mineral inclusions. The thermoscanning technique gives additional information about mercury speciation in coal for better understanding of mercury geochemistry in fossil
KW - Coal
KW - Mercury Thermoscanning
U2 - 10.1016/j.fuel.2017.03.085
DO - 10.1016/j.fuel.2017.03.085
M3 - Article
VL - 203
SP - 973
EP - 980
JO - Fuel
JF - Fuel
SN - 0016-2361
ER -
ID: 7747915