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5783252 
Journal Article 
Determination of Polycyclic Aromatic Hydrocarbons (PAH) Adsorbed on Soot Formed in Pyrolysis of Acetylene at Different Temperatures 
Sanchez, NE; Callejas, A; Millera, A; Bilbao, R; Alzueta, MU 
2010 
0 
Chemical Engineering Transactions
ISSN: 1974-9791 
Italian Association of Chemical Engineering - AIDIC 
Chemical Engineering Transactions 
22 
131-136 
English 
WOS:000286970200021 
The quantification of 16 polycyclic aromatic hydrocarbons (PAH) adsorbed on the soot produced in the pyrolysis of acetylene at different temperatures has been carried out. Pyrolysis experiments took place in a quartz reactor between 1073 and 1473 K, for an inlet C2H2 concentration of 30,000 ppmv and residence times between 3.1 and 4.2 s. The soot samples were collected in the outlet gases stream using glass fiber thimbles. The different kinds of soot have undergone soxhlet extraction and the obtained extracts were finally analyzed by means of a gas chromatograph coupled to a mass spectrophotometer. Using the toxic equivalent factors proposed by Nisbet and LaGoy (1992) and PAH concentration adsorbed on soot, the KE (carcinogenic equivalence) values were calculated in order to specify the carcinogenic potential of soot samples formed under different temperature conditions. The results of this research work indicate that temperature of soot formation has significant influence on the PAH concentration adsorbed. Comparatively, it can be observed that the concentrations of heavier PAH together with acenaphthylene and phenanthrene show a maximum value at 1173 K. On the other hand, for some lighter PAH, their concentrations decrease with increasing temperatures. Copyright © 2010, AIDIC Servizi S.r.l.