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Pub. No.:    WO/2018/025216    International Application No.:    PCT/IB2017/054756
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Fri Aug 04 01:59:59 CEST 2017
IPC: C10J 3/26
C10J 3/72
C10J 3/74
C10J 3/82
C10K 3/00
C10J 3/52
Applicants: MINI, Leandro
RUGGERI, Roberto
Inventors: MINI, Leandro
RUGGERI, Roberto
The invention comprises a process for the pyrogasification of solid plant biomass which resolves the problem of the presence of tar in the syngas produced within such process to the point that it can then be passed to an endothermic engine without causing its premature breakdown. In order to achieve this process a new type of pyrogasifier unit comprising a reactor of frustoconical shape with internal walls of refractory materials provided with a first upward opening for the entry of gasifying agent and a second downward opening for exit of the syngas has been produced. The upper opening is the only possible entry for the gasifying agent and at the same time it is crucial to prevent any further ingress of air from the walls of the truncated cone, in addition to this such opening must be equal to the entire upper surface area of the reactor, therefore not an inlet nozzle or window but a proper open vessel, in order to ensure that the gasifying agent interacts uniformly and activates the entire upper surface area of the reactor to then propagates continuously downwards. The pyrogasification process propagates from the top to bottom in a gradual, progressive and geometrically self-regulating manner. The syngas produced thus passes through the full height of the reactor being exposed to a prolonged cracking action giving rise to a product with a low tar content. It is also an object of the invention a method of using the pyrogasification unit according to the present invention.