Resumo

MARTINEZ-FLORES, Marco Antonio et al. Concentration, morphology and chemical composition of TSP and PM10 collected in the stack of three internal combustion engines of high capacity (42 MW). Ing. invest. y tecnol. [online]. 2018, vol.19, n.3, pp.291-303. ISSN 2594-0732.  https://doi.org/10.22201/fi.25940732e.2018.19n3.025.

The first Mexican results of the concentration, morphology and chemical composition of Total Suspended Particles (TSP) and particles smaller than 10 microns (PM10) from three Internal Combustion Engines (ICE) of 42 MW, employees to generate electricity, which were obtained by an experimental campaign on November, 2015 and follows the sampling procedures described in the EPA methods 5 and 201A. The ICE’s used two kind of fuels: in the ICE-2 and ICE-3, it was a Mexican heavy oil with 4% by weight of sulfur, 0.07% ash and a specific gravity greater than 1; while in ICE-1, it was used a mixture with 85% of Mexican Heavy oil and 15% of diesel. The TSP concentration in ICE-1 was of 178 mg/Nm3 in which 62% were PM10; for the case of the ICE-2 and ICE-3, the TSP were of 190 and 151 mg/Nm3, respectively, and in both cases the PM10 were the 80% of the total TSP. The morphology of the TSP and PM10 in all ICE’s, were of solid and spherical particles, with the majority of the sizes under 10µm. When this morphology is compared with the TSP of a conventional furnace, the amorphous, porosity and the wide variety of sizes are the main differences. As principal components in the particles of the ICE´s were identified the O, C, V and S.

Palavras-chave : TSP; PM10; emission; morphology; internal combustion engines.