Process to prepare a char product
AssigneeTorrgas Technology B.V.
InventorsRobert Hugo Berends, Robin Pieter Post Van Der Burg
Life of this patent
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Abstract
The invention is directed to a process to prepare a char product by pyrolysis or mild gasification of a solid biomass feed thereby obtaining a gaseous fraction comprising hydrogen, carbon monoxide and a mixture of gaseous organic compounds and a solid fraction comprising of char particles having a reduced atomic hydrogen over carbon ratio and a reduced oxygen over carbon ratio relative to the solid biomass feed. The solid biomass feed are pellets of a solid torrefied biomass feed. The pyrolysis or mild gasification is performed at a temperature of between 500 and 800° C. and at a solid residence time of between 10 and 60 minutes.
Claims11
A process to prepare a char product the method comprising mild gasification of a solid biomass feed,
- thereby obtaining a gaseous fraction comprising hydrogen, carbon monoxide and a mixture of gaseous organic compounds and a solid fraction comprising char particles having a reduced atomic hydrogen over carbon ratio and a reduced oxygen over carbon ratio relative to the solid biomass feed;
- wherein the solid biomass feed are pellets of a solid torrefied biomass feed having a content of volatiles of between 50 and 75 wt %;
- and
- wherein the mild gasification is performed at a temperature of between 50° and 800° C. and at a solid residence time of between 10 and 60 minutes and in the presence of oxygen and steam.
Dependencies are inferred from the claim text.