To provide an oil regeneration method and an apparatus efficiently gaining an oil of well-balanced composition and to provide a desulfurization method and a desulfurization apparatus.
The oil regeneration method is one for regenerating an oil from a waste oil comprising a heat decomposition step and a purification step. The heat decomposition step comprises feeding the waste oil into a tapered agitation cylinder the radius of a circular cross section of which increases upwardly and evaporating necessary oil components from the waste oil under heating while circumferentially rotating the agitation cylinder. The purification step comprises a magnetic field irradiation step of irradiating the feedstock with a magnetic field and the subsequent desulfurization step of reacting the feedstock with a desulfurization catalyst.
Motoaki Nagata
Hironori Nishihara
Eiji Ota