Utilização de prototipo nacional de destilador molecular para caracterização de frações pesadas de petroleo / Use of national molecular distiller prototype for characterization of heavy oil fractions

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The characterization through TBP (True Boiling Point) curve is one of the most common experimental techniques for determination of petroleum properties. This curve defines the yield of petroleum products as function of their true boiling points, supplying important information on decisions of refinery process control and on the quality of the produced oil. Due to the considerable volume of heavy and extra heavy oils that has been found in Brazil, the extension of TBP above 565 ºC has been studied. A suitable high potential equipment to obtain the extension of TBP curve is a national falling film molecular distiller prototype that was designed and built up by the oil research group of LOPCA/LDPS/FEQ/UNICAMP, which is appropriated for distillation of products of high molecular weight and thermally sensitive, without their degradation. The aim of this work was to obtain experimentally cuts and residues from two national petroleum fractions, using the national molecular distiller prototype. The extension of TBP curve for petroleum residues fractions was made from the molecular distiller data and the DESTMOL correlation. The operating temperatures of the molecular distiller were converted in the corresponding true boiling points in this correlation. Through molecular distillation process it was possible to extend the TBP curve up to temperatures close to 700 ºC with consistency and continuity related to the standard TBP curve. In addition, a quantity of raw material that was being treated as waste could be recovered

ASSUNTO(S)

petroleo - residuos molecular distilation destilação molecular petroleum waste

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