Process and device for waste pyrolysis and gasification

Details Process and device for waste pyrolysis and gasification Process and device for waste pyrolysis and gasification

2005-02-08

2005-02-08

Caldarola, Glenn (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

C588S010000, C422S198000, C422S168000, C422S184100, C422S186210, C422S186220, C423S201000, C048S198800, C048S1970FM, C048SDIG002, C110S346000, C110S229000, C110S250000

Reexamination Certificate

active

06852293

ABSTRACT:
A process is disclosed for the pyrolysis and gasification of waste materials, in particular of special and/or hazardous waste materials, comprising a gasification and melting step, a step of treatment of the mixture of the obtained gases, and a vitrification step, wherein said steps provide for the following passages: a) the material to be treated, at a temperature comprised between 1300 and 1500° C., is gasified for a lapse of time comprised between 3 and 15 seconds, and melt for a time comprised between 5 and 30 minutes, in total absence of air, obtaining a mixture of combustible gases, non-combustible gases and inert gases, through at least two gasification steps carried out in a sequence, wherein the temperature is maintained constant through the use of at least one thermal lance in any one of the gasification steps; b) the mixture of combustible and non-combustible gases thus obtained is subjected to purification and energy-recovery treatments; c) the inert gases, or inorganic and mineral proportion, are extracted in vitrified state. Further on, a device for carrying out such process is disclosed.

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