System and method for processing diesel fuel from waste oil
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United States of America Patent
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Jun 7, 2016
Grant Date -
Jul 24, 2014
app pub date -
Oct 3, 2012
filing date -
Oct 3, 2011
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Abstract
There is disclosed a system and method for processing diesel fuel from petroleum-based waste oil on a small scale compared to conventional methods for re-refining waste oil to a valuable product. In an embodiment, the method comprises dehydrating waste oil to remove water from the waste oil, and operating a thermal reactor to induce thermal pyrolysis of the dehydrated waste oil and convert it into a hydrocarbon vapor phase. The hydrocarbon vapor derived from pyrolysis is condensed and distilled using a distillation tower to produce diesel fuel, heavy liquid hydrocarbon, light liquid hydrocarbon and light hydrocarbon vapor. A filtering step cleans the processed diesel fuel to obtain a clean diesel fuel product.
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