Patent ID: 9243211
Filing Date: 2016-01-26
CPC Classification: C11B,C11C,Y02W

Claim Text:
1. A selective collection and conversion method for the reuse of used oils and greases for energy purposes, which method comprises the following steps: (a) producing and separating ester-based waste from other substances or compounds; (b) collecting the waste; (c) gathering/storing the waste in at least one of a collection facility and a regeneration facility; (d) regenerating or treating the waste; and (e) reusing the collected or regenerated or treated waste, wherein step (c) further comprises a chemical-physical characterization step (c1) for the waste, during which said waste is chemically and physically identified such that it falls within at least a specific relevant class chosen among one of the following: (I) waste containing at least one of a natural ester-based oil/grease and a synthetic ester-based oil/grease suitable for the regeneration process; (II) waste containing at least one of a natural ester-based oil/grease and a synthetic ester-based oil/grease, which waste cannot be regenerated but, after a specific treatment, in the reuse step, it is made suitable for the production of electrical energy; (III) waste containing at least one of a natural ester-based oil/grease and a synthetic ester-based oil/grease, which waste cannot be regenerated but, after a specific treatment, in the reuse step, it is made suitable for the production of second generation biodiesel; and (IV) waste containing at least one of a natural ester-based oil/grease and a synthetic ester-based oil/grease, which waste cannot be regenerated or treated, but in the reuse step, it is made suitable for the thermal destruction or combustion with the recovery of produced heat, wherein said waste is at least one of an oil and a grease containing at least one of a natural ester-based oil/grease and/or synthetic ester-based oil/grease, and wherein said waste is the by-product or waste of an industrial processes.