Aerosol agglomeration

The collection of the pyrolysis oils is difficult due to their tendency to form aerosols and also due to the volatile nature of many of the oil constituents. As the aerosols agglomerate into larger droplets, they can be removed by cyclonic separators. However, the submicron aerosols cannot be efficiently collected by cyclonic or inertial techniques, and collection by impact of the aerosols due to their Brownian or random motion must be utilized. A coalescing filter is relatively porous, but it contains a large surface area for the aerosol particles to impact by Brownian motion as they are swept through by the pyrolysis gases. Once the aerosol droplets impact the filter fibers, they are captured and coalesce into large drops that can flow down the fibers and be collected. 

Fractal analysis is also being applied to computer modeling of aerosol agglomeration [76] and the reaction kinetics of pigment formation [77,78]. 

Molecular Recombination Colloid Coagulation Aerosol Agglomeration... 

Problems arise in developing analytical transport theories in the transition regime, and a semiempirical formula, which splices the two limiting solutions, is usually used in studies of aerosol agglomeration. In this chapter formulas will be derived from the FPE which apply in the transition regime. 

C-6. C.D. Leigh, et al.. Analyses of Plume Formation, Aerosol Agglomeration and Rainout Following Containment Failure, NUREG/CR-4222, SAND84-2581, Sandia National Laboratories, Albuquerque, NM, August 1986... 

A. Virtanen, J. Ristimaki, J. Kesldnen, Method for measuring effective density and fractal dimension of aerosol agglomerates. Ataosol ScL Technol. 38(5), 437-446 (2010). doi 10.1080/ 02786820490445155... 

Dekkers, P.J. and Friedlander, S.K. (2002) The self-preserving size distribution theory 1. Effects of the Knudsen number on aerosol agglomerate growth. Journal of Colloid and Interface Science, 248(2), 295-305. 

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