Experimental Study on Waste Engine Oil Processing by Means of Flocculation-absorption

摘要

Re-cleansing and purification of waste engine oil by flocculation-absorption can be used as a pretreatment for further refined processing due to its features of low pollution, low cost and easy operability. This paper has sifted through various absorbents to locate the most appropriate one based on previous flocculation experiments, then to obtain optimal operational parameters. Experiments have demonstrated that best purification effect could be achieved under the following conditions: 12%～14% (W/V) active white clay at the reaction temperature of 120°C～130°C for about 30min. Chrominance and quality of waste engine oil could be markedly enhanced after flocculation-absorption method.