The behavior of constant rate aerosol reactors

Journal Article · Fri Jan 01 00:00:00 EST 1982 · Aerosol Sci. Technol.; (United States)

OSTI ID:5410455

Friedlander, S K

An aerosol reactor is a gaseous system in which fine particles are formed by chemical reaction in either a batch or flow process. The particle sizes of interest range from less than 10 angstrom (molecular clusters) to 10 ..mu..m. Such reactors may be operated to study the aerosol formation process, as in a smog reactor, or to generate a product such as a pigment or a catalytic aerosol. Aerosol reactors can be characterized by three temporal or spatial zones or regions of operation for batch and flow reactors, respectively. In zone I, chemical reaction results in the formation of condensable molecular products which nucleate and form very high concentrations of small particles. The number density depends on the concentration of preexisting aerosol. Zone II is a transition region in which the aerosol number concentration levels off as a result of hetergeneous condensation by the stable aerosol. In zone III coagulation becomes sufficiently rapid to reduce the particle number concentration. There may be a zone IV in which agglomerates form.

• Research Organization: Univ. of California, Los Angeles, CA
• OSTI ID: 5410455
• Journal Information: Aerosol Sci. Technol.; (United States), Vol. 1:1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROSOL GENERATORS
CHEMICAL REACTION KINETICS
PERFORMANCE
AEROSOLS
AGGLOMERATION
BATCH LOADING
CATALYSIS
CHEMICAL REACTIONS
FLOCCULATION
MATHEMATICAL MODELS
NUCLEATION
PARTICLE SIZE
SPATIAL DISTRIBUTION
COLLOIDS
DISPERSIONS
DISTRIBUTION
KINETICS
PRECIPITATION
REACTION KINETICS
REACTOR FUELING
SEPARATION PROCESSES
SIZE
SOLS
500100* - Environment
Atmospheric- Basic Studies- (-1989)