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Selectivity distribution of light gases produced from the isothermal conversion of n-C7 asphaltenes at 220 °C in the presence of (a) CeO2, (b) CeCo1Pd1, (c) CeFe1Pd1, and (d) CeNi1Pd1 nanocatalysts. N2 flow rate = 100 mL·min−1, H2O(g) flow rate = 6.30 mL·min−1, asphaltene load = 0.0002 mmol·m−2.
