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|Type:||Artigo de evento|
|Title:||Deasphalting Process Using Liquefied Petroleum Gas (lpg)|
Wolf Maciel M.R.
Maciel Filho R.
|Abstract:||The solvent deasphalting process was studied under different operating conditions to evaluate the properties of the obtained products and their future applications both in the production of lubricants (type I) and asphaltenes with better quality. This new development involves the extraction of a high-boiling-point petroleum fraction > 400°C (a bottom residue from vacuum distillation) using LPG as solvent in supercritical and subcritical states. The solvent deasphalting process under the supercritical conditions resulted in higher extraction yields of deasphalted oil when compared to process in subcritical conditions. The obtained deasphalted oil or raffinate, substantially free of asphaltenes (< 1 w t%), showed characteristics suitable for the production of lubricant base oil while in the extract phase, there was a high concentration of asphaltenes. This is an abstract of a paper presented at the CHISA 2012 - 20th International Congress of Chemical and Process Engineering and PRES 2012 - 15th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (Prague, Czech Republic 8/25-29/2012).|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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