Abstract
This paper reports an investigation of the abatement of polycyclic aromatic hydrocarbon (PAH) emissions using different carbonaceous materials as adsorbents. PAH model compounds (naphthalene and phenanthrene) were initially used to obtain a deeper understanding of the complex process of PAH adsorption in industrial hot gas cleaning systems. First, the adsorption of binary mixtures of these compounds was carried out at the laboratory scale in an experimental rig specially designed for this purpose, where gas-phase fluorescence is used for detection. Experimental conditions, mainly in terms of temperature and contaminant concentration, close to those observed in flue gases from energy generation systems were applied. The PAH adsorption process was analyzed in terms of experimentally obtained breakthrough curves. After the detection parameters had been optimized, the influence of the structural and chemical properties of the activated carbon was studied. It was found that the higher the adsorbent porosity, t...
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