Patent ID: 7255785
Filing Date: 2007-08-14
Classification: B01J,C10G,C10M

Abstract:
1. A process for reclaiming fuel oil from waste oil, comprising the steps of: (a) increasing the pressure inside a thermal cracking vessel up to 50˜100 psi by feeding waste oil to the thermal cracking vessel using a high pressure pump; (b) heating the thermal cracking vessel until the temperature inside the thermal cracking vessel reaches about 200° C.; (c) slightly opening the thermal cracking vessel to release any trapped air in the vessel to the atmosphere and closing the vessel; (d) heating the thermal cracking vessel to maintain the temperature inside the thermal cracking vessel at a constant value in the range of 300˜350° C. until about 50% of the waste oil is removed from the vessel by thermal cracking; (e) stopping heating and depressurizing the thermal cracking vessel at least up to 10 (f) removing vacuum pressure inside the thermal cracking vessel when about 70% of the waste oil goes through thermal cracking.