Coal processing with added biomass and volatile control
AssigneeC2O Technologies, LLC
InventorFranklin G. Rinker
Life of this patent
Estimating the term…
Abstract
A process for treating input coal includes treating input coal in a pyrolysis step to form coal char. The pyrolysis step includes heating the coal substantially in the absence of oxygen to remove volatile material from the coal. The volatile material evolved from the coal in the pyrolysis step is treated to separate the volatile material into gases and liquids, wherein the liquids contain condensed volatile material. A portion of the liquids is directed to the coal char, and the returned portion of the liquids is mixed with the coal char, thereby returning some of the volatile material to the coal char.
Claims20
A process for treating input coal, the process comprising:
- treating the coal in a pyrolysis step to form coal char, where the pyrolysis step includes heating the coal substantially in the absence of oxygen to remove volatile material from the coal;
- treating the volatile material evolved from the coal in the pyrolysis step to separate the volatile material into gases and liquids, wherein the liquids contain condensed volatile material;
- and
- directing a portion of the liquids to the coal char, and mixing the returned portion of the liquids with the coal char, thereby returning some of the volatile material to the coal char.
A process for treating input coal, the process comprising:
- treating the coal in a pyrolysis step to form coal char, where the pyrolysis step includes heating the coal substantially in the absence of oxygen to remove volatile material from the coal;
- mixing biomass material with the coal char, where the biomass material has a high volatile content, and where the addition of the biomass material to the coal char increases the volatile content of the coal char by an amount within the range of from about 2% to about 15%.
A process for treating input coal, the process comprising:
- treating the coal in a pyrolysis step to form coal char, where the pyrolysis step includes heating the coal substantially in the absence of oxygen to remove volatile material from the coal;
- treating the volatile material evolved from the coal in the pyrolysis step to separate the volatile material into gases and liquids, wherein the liquids contain condensed volatile material;
- directing a portion of the liquids to the coal char, and mixing the returned portion of the liquids with the coal char, thereby returning some of the volatile material to the coal char;
- and
- mixing biomass material with the coal char.
Dependencies are inferred from the claim text.