Method and apparatus for a circulating bed transport fast...

C - Chemistry – Metallurgy – 10 – B

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C10B 53/00 (2006.01) C10B 49/20 (2006.01) C10B 55/06 (2006.01) C10C 5/00 (2006.01)

Patent

CA 2009021

This invention generally relates to a new method and apparatus for the fast pyrolysis of carbonaceous materials involving rapid mixing, high heat transfer rates, precisely controlled short uniform residence times and rapid primary product quench in an upflow, entrained-bed, transport reactor with heat carrier solids recirculation. A particulate feedstock, a non-oxidative transport gas and particulate hot solids are rapidly mixed in a reactor base section, then transported upward through an entrained-bed tubular reactor. A cyclonic hot solids recirculation system separates the solids from the non- condensible gases and primary product vapours and returns them to the mixer. Product vapours are rapidly quenched to provide maximum yields of total liquids, petrochemicals and selected valuable chemicals.

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