Abstract
Solid waste obtaiend from wastewater treatment plant of pulp and paper factory; using kraft process, was used for liquefaction studies. Aqueous suspensions of the solid (20% by weight) have been treated with acetic acid and NaOH (15% by weight of solid) at the temperatures of 250°C, 300°C, and 350°C in a high pressure autoclave for one hour, starting with one atmosphere initial pressure.
The gas produced during thermochemical treatment was analysed with an Orsat gas analyser. After treatment, the reaction mixtures were separated into solid-oil and aqueous layers. The percentages of acetone extract of solid-oil, the lignin content and calorific values were determined. The solid-oil yield the solid was determined by drying and weighing.
It was found that as operating temperature increases the amount of the acetone extract increases. The calorific values of thes olid-oil phase increase for both acetic acid and NaOH treatment processes. The solid-oil yield of the solid increases with increasing of thermochemical treatment temperature. It can be concluded that the solid waste from pulp and paper industry can be used for the production of crudes.
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Taner, F., Boztepe, H., Kimyonsen, ü. (1987). Thermochemical Treatment of Solid Waste Obtained from Pulp and Paper Factory with 15% Acetic Acid and NaOH for Conversion to Crudes. In: De Waal, K.J.A., Van Den Brink, W.J. (eds) Environmental Technology. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3663-8_30
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DOI: https://doi.org/10.1007/978-94-009-3663-8_30
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