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Determinação de compostos sulfurados em amostras de asfalto de petróleo empregando cromatografia líquida de alta eficiência com detecção por arranjo de fotodiodos
(Universidade Federal de Santa Maria, 2019-03-21)
The presence of organosulfur compounds in petroleum-derived asphalts is related to
several negative characteristics, such as catalyst poisoning and corrosion of
equipment during the refining process, as well the acceleration ...
Estudo de compostos voláteis de níquel e vanádio em cimento asfáltico de petróleo virgem e envelhecido
(Universidade Federal de Santa Maria, 2019-03-22)
Among the heteroatoms present in petroleum, nickel and vanadium are the most abundant metals. Thus, these can be found in large quantities in petroleum derivatives, such as Asphaltic Petroleum Cement (APC). The presence ...