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Pyrolysis of sewage sludge samples from three Asturian urban wastewater treatment plants was carried out. One high volatile bituminous coal and its blends with 10 and 50wt% of sludge were studied by thermogravimetry. The same operational conditions (a constant heating rate of 10°C/min in the temperature range 25–800°C and a N 2 flow of 200cm 3 /min) were maintained throughout. The...
A method of predicting the viscosity of multicomponent base lubricating oil mixtures based on Andrade's equation is proposed. The kinematic viscosity of three types of base lubricating oils and their binary and ternary mixtures were measured at different temperatures and the parameters of Andrade's equation were calculated. The results obtained indicate that the Andrade parameters vary linearly...
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