Versalis S.p.a.

Gianni Marchetti

Giovanni Regattieri

Alessandro Brandolin

Matteo Gheno

Nicola Fiorotto

The present invention relates to a rotor that comprises a series of shaped rotor blades whose circumferential section forms a standard NACA four-digit airfoil. Said rotor can be inserted in a stirring device that also comprises a stator, on whose inner surface shaped stator blades are positioned, whose circumferential section forms a standard NACA four-digit airfoil.

Rotor and stirring device

The present invention relates to a system for energy recovery and a polymerization plant having such a system comprising a. an exothermic device operating continuously (exothermic device interpreted as any apparatus able to produce heat and transfer it onto another body), b. a cooling device in fluid communication with said exothermic device, c. an endothermic device operating discontinuously (endothermic device interpreted as any apparatus able to receive heat from another body, i.e. to be heated); said system being characterized in that it comprises a device for the accumulation of the energy produced by the exothermic device in fluid communication with the discontinuous endothermic device, the exothermic device operating continuously and the cooling device using a service fluid.

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Roncoferraro, Italy

Gianni Marchetti