Novel Glass Crystal Catalysts for the Processes of Methane Oxidation
Full article
| Common |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
EuropaCat-IV: 4th European Congress on Catalysis
05-10 Sep 1999
,
Rimini
|
| Journal |
Catalysis Today
ISSN: 0920-5861
, E-ISSN: 1873-4308
|
| Output data |
Year: 2001,
Volume: 64,
Number: 1-2,
Pages: 59-67
Pages count
: 9
DOI:
10.1016/S0920-5861(00)00509-5
|
| Tags |
Alkalinity; Catalyst activity; Coal combustion; Crystal defects; Crystal structure; Lignite; Magnetic materials; Methane; Morphology; Oxidation |
| Authors |
Anshits A.G.
1
,
Kondratenko E.V.
1
,
Fomenko E.V.
2
,
Kovalev A.M.
1
,
Anshits N.N.
1
,
Bajukov O.A.
3
,
Sokol E.V.
4
,
Salanov A.N.
5
|
| Affiliations |
| 1 |
Institute of Chemistry of Natural Organic Materials and Chemical Technology, K. Marx Str. 42, Krasnoyarsk 660049, Russia
|
| 2 |
Krasnoyarsk State Technical University, Kirenskii Str. 26, Krasnoyarsk 660074, Russia
|
| 3 |
Institute of Physics, Akademgorodok, Krasnoyarsk 660036, Russia
|
| 4 |
Institute of Geology, Geophysics and Mineralogy, University av. 3, Novosibirsk 630090, Russia
|
| 5 |
Boreskov Institute of Catalysis, Lavrent èv Str. 5, Novosibirsk 630090, Russia
|
|
Novel catalysts were prepared from magnetic microspheres and cenospheres recovered from fuel ashes being formed in combustion of Irsha-Borodinskii lignite and Kuznetskii coal. The specific features of microsphere formation in the coal combustion were discussed. The morphology as well as composition of different magnetic microspheres and cenospheres were studied by SEM, electron probe microanalysis and Mössbauer spectroscopy. The morphology of globules, crystallite size and defect structure of active phase was established to depend on the basicity of the glass phase. It was shown that catalytic activity of magnetic microspheres and cenospheres in the reaction of deep oxidation of methane is determined by the spinel phase and depends on the extent of its accessibility and type of defect structure.