| 摘要 |
<p>The present invention relates to a process and an apparatus for the purification of waste oil or re-refined oil from mineral or synthetic oil. The process comprises the steps of prefiltration of the oil followed by passing the prefiltrated oil through a filtering unit in which the filter medium comprises organic fibres and carbon particles, said organic fibres and carbon particles being adhered to each other by a binder. By performing the process the waste oil is purified and hydrogen sulfide and residues from carbonization are effectively removed. Problems concerning blocking of the filters are reduced and the process is carried out in a continuous way resulting in a continuous flow.</p> |
