Asphaltenes have been associated with a number of problems
in the
petroleum industry with regard to the storage, exploration, and transportation
of petroleum crude. In the current work, Copper-BenzeneDiCarboxylic
acid (Cu-BDC) and Cu-BDC derived metal oxide has been used in the
removal and oxidation of the asphaltenes. The MOF derived metal oxide
was confirmed to be Cu
2
O. Though adsorption of asphaltenes
followed a Langmuir adsorption isotherm in both cases, Cu-BDC was
superior to Cu
2
O with an adsorption capacity four times
that of the adsorption capacity of Cu
2
O. Also, the kinetic
studies showed that the adsorption kinetics followed pseudo second
order adsorption kinetics in both cases. From the oxidation studies,
it was found that Cu-BDC was unstable beyond 350 °C and had no
role in catalyzing the oxidation reaction. The Cu
2
O, however,
was successful at catalyzing the asphaltene oxidation reaction and
a reduction of 50 °C in oxidation temperature was observed. Hence
comparing Cu-BDC with Cu
2
O, MOF was successful in the adsorption
reaction but the MOF derived metal oxide had the upper hand in the
oxidation reaction.
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