TY - JOUR

T1 - Catalytic combustion

T2 - Achievements and problems

AU - Parmon, V. N.

AU - Simonov, A. D.

AU - Sadykov, V. A.

AU - Tikhov, S. F.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - A catalytic method of combustion of a solid fuel in a fluidized bed is compared with a noncatalytic method. It is shown that the use of catalysts reduces the fuel consumption and sizes of heat generators approximately by an order of magnitude, while the specific load on the reactor volume increases by more than a factor of 20. Emission of toxic substances with fuel combustion products drastically decreases. Comparative stability of oxide non-platinum catalysts is estimated in the course of catalytic burning of the fuel with addition of an inert material. In burning fuels with a large content of sulphur, the maximum deactivation is found to occur within the first several tens of hours; this process is accompanied by sulphur accumulation in catalysts. Later on, the catalyst activity remains almost unchanged. It is found that a critical factor of catalyst stability is attrition resistance. The prospects of fuel burning in a layer of cermet honeycomb catalysts are demonstrated.

AB - A catalytic method of combustion of a solid fuel in a fluidized bed is compared with a noncatalytic method. It is shown that the use of catalysts reduces the fuel consumption and sizes of heat generators approximately by an order of magnitude, while the specific load on the reactor volume increases by more than a factor of 20. Emission of toxic substances with fuel combustion products drastically decreases. Comparative stability of oxide non-platinum catalysts is estimated in the course of catalytic burning of the fuel with addition of an inert material. In burning fuels with a large content of sulphur, the maximum deactivation is found to occur within the first several tens of hours; this process is accompanied by sulphur accumulation in catalysts. Later on, the catalyst activity remains almost unchanged. It is found that a critical factor of catalyst stability is attrition resistance. The prospects of fuel burning in a layer of cermet honeycomb catalysts are demonstrated.

KW - attrition

KW - catalysts

KW - catalytic combustion

KW - cermet

KW - deactivation

KW - fluidized layer

KW - reactor

KW - sintering

KW - structured catalysts

UR - http://www.scopus.com/inward/record.url?scp=84928993165&partnerID=8YFLogxK

U2 - 10.1134/S001050821502001X

DO - 10.1134/S001050821502001X

M3 - Article

AN - SCOPUS:84928993165

VL - 51

SP - 143

EP - 150

JO - Combustion, Explosion and Shock Waves

JF - Combustion, Explosion and Shock Waves

SN - 0010-5082

IS - 2

ER -