Eni S.p.a.

Michelangelo D'Abbieri

Felicia Massetti

Giacomo Fernando Rispoli

Medardo Pinti

Alessandro Nardella

Maria Ilaria Pistelli

A continuous process for the thermal treatment of a refinery sludge, comprising the following operations: a. drying of the refinery sludge, possibly mixed with pet-coke, at a temperature ranging from 110 to 120&#xb0; C.; b. gasification of the dried sludge, at a temperature ranging from 750 to 950&#xb0; C., for a time of 30 to 60 minutes, in the presence of a gas containing oxygen and water vapour, with the associated production of synthesis gas (CO+H) and a solid residue; c. combustion of the synthesis gas at a temperature ranging from 850 to 1,200&#xb0; C. and recycling of the combustion products for the drying and gasification phases; and d. inertization of the solid residue, at a temperature ranging from 1,300 to 1,500&#xb0; C., by vitrification with plasma torches.

Process and apparatus for the thermal treatment of refinery sludge

The present invention relates to a process for the treatment of oil residues coming from the oil industry which comprises the recovery of the oil fraction of residues by extraction with solvents having a low environmental impact (ethyl acetate/toluene) and subsequent finishing for the downgrading of the residual material.

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Rome, Italy

Michelangelo D'Abbieri