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Desemulsificação de petróleos assistida por ultrassom e posterior caracterização das fases água e óleo
(Universidade Federal de Santa Maria, 2011-08-19)
The effect of ultrasound (US) for demulsification of crude oils with different
characteristics (viscosity, density e water content) was investigated, without using
chemical demulsifier. Initially, the treatment using US ...
Decomposição de coque, resíduo de vácuo e petróleo extrapesado por piroidrólise para a determinação de cloro
(Universidade Federal de Santa Maria, 2007-10-26)
In this work, a method for chlorine determination in petroleum coke, vacuum and atmospheric residues and heavy petroleum was developed. The pyrohydrolysis sample decomposition method was used, which consists of sample ...