TY - JOUR
T1 - Vanadium and nickel speciation in pulverized coal and petroleum coke co-combustion
AU - Silva, Luis F.O.
AU - Oliveira, Marcos L.S.
AU - Sampaio, Carlos H.
AU - De Brum, Irineu A.S.
AU - Hower, James C.
PY - 2013/3/21
Y1 - 2013/3/21
N2 - Vanadium and nickel in emissions from fossil-fuel combustion and in the fly ash can be an environmental concern. The fly ash from the combustion of a 70% coal/30% petroleum coke blend in a 500 MW pulverized-fuel utility boiler was studied by a variety of X-ray, optical microscopy, and electron beam methods. The fly ash V and Ni are present in heterogeneous silicates, glass, sulfates, oxides and oxyhydroxides, and crystalline and/or amorphous mixed clay minerals, and also in Ni, detrital ferromagnesian silicates. Vanadium- and Ni-bearing spinels are incorporated into magnetite structures. Multiwalled nanotubes encapsulate V and Ni, and C60, C70, and C80 fullerenes and their derivatives are present.
AB - Vanadium and nickel in emissions from fossil-fuel combustion and in the fly ash can be an environmental concern. The fly ash from the combustion of a 70% coal/30% petroleum coke blend in a 500 MW pulverized-fuel utility boiler was studied by a variety of X-ray, optical microscopy, and electron beam methods. The fly ash V and Ni are present in heterogeneous silicates, glass, sulfates, oxides and oxyhydroxides, and crystalline and/or amorphous mixed clay minerals, and also in Ni, detrital ferromagnesian silicates. Vanadium- and Ni-bearing spinels are incorporated into magnetite structures. Multiwalled nanotubes encapsulate V and Ni, and C60, C70, and C80 fullerenes and their derivatives are present.
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U2 - 10.1021/ef4000038
DO - 10.1021/ef4000038
M3 - Article
AN - SCOPUS:84875448542
SN - 0887-0624
VL - 27
SP - 1194
EP - 1203
JO - Energy and Fuels
JF - Energy and Fuels
IS - 3
ER -