Process and apparatus for the thermal treatment of refinery sludge

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United States of America Patent

PATENT NO 8969647
APP PUB NO 20120184797A1
SERIAL NO

13384436

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Abstract

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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° C.; b. gasification of the dried sludge, at a temperature ranging from 750 to 950° 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+H2) and a solid residue; c. combustion of the synthesis gas at a temperature ranging from 850 to 1,200° 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° C., by vitrification with plasma torches.

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Patent Owner(s)

  • ENI S.P.A.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
D'Abbieri, Michelangelo Rome, IT 2 2
Massetti, Felicia Capalbio Scalo, IT 9 38
Pinti, Medardo Rome, IT 7 71
Pistelli, Maria Ilaria Tarquinia, IT 4 6
Rispoli, Giacomo Fernando Rome, IT 5 17

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