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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Study of the particulate matter emitted from residual oil combustion and natural gas reburning

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Author(s):
Celso A. Bertran [1] ; Carla S. T. Marques [2]
Total Authors: 2
Affiliation:
[1] Universidade Estadual de Campinas. Instituto de Química - Brasil
[2] Universidade Estadual de Campinas. Instituto de Química - Brasil
Total Affiliations: 2
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 15, n. 4, p. 548-555, 2004-08-00.
Abstract

In this work, a study of the particulate matter emitted from standard residual oil combustion and from natural gas reburning during oil combustion in a pilot scale furnace was carried out. The sizes, morphologies and chemical element distribution of particles were analyzed through scanning electron microscopy coupled to an X-ray energy dispersive spectrometer (EDS). The microscopy results show three sorts of particles: spherical, very compact and smooth cenospheres with sizes of 0.6-1.5 mum; cenospheres with a few pores with sizes of 10-20 mum and larger porous cenospheres with sizes of 20-50 mum. The particulate emitted from standard oil combustion shows predominantly spherical and very compact small cenospheres, with a smooth surface, while those emitted from the reburning process present a majority of larger porous cenospheres. The EDS microanalysis showed mainly Al and Si in the smaller cenospheres and mostly S and V in the cenospheres with a few pores and in the larger porous cenospheres. (AU)