Coal-Ash Agglomeration Mechanism and Its Application in High Temperature Cyclones

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Abstract
The increase of particulate removal efficiency in a high-temperature cyclone is being examined analytically. A simple and effective approach is presented to view the coal-ash agglomeration phenomenon near its softening/fusion temperature. The probability of adhesion of the neighboring particles when coupled with the number of collisions of particles in a high-temperature cyclone appears to demonstrate that the high-temperature/pressure cyclone dust collector is capable of meeting the challenge of hot-gas cleanup problems. The effect of momentum of particles, surface tension, and viscosity of molten boundary layer enclosing a core particle is investigated for the enhancement of particle adhesion. Analytical computations and laboratory experience of a high-temperature cyclone are presented.

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