Patent ID: 11920088
Assignee: RED LEAF RESOURCES, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 10:
11. The method of claim 1, further comprising a startup phase, at a beginning of which the rubblized carbon ore in the first and second vessels is at a temperature below the pyrolysis temperature, the startup phase comprising:
introducing an oxygen-free heating gas into the first vessel to form the pyrolysis zone by heating the rubblized carbon ore in the pyrolysis zone to the pyrolysis temperature;
after the pyrolysis zone has moved downstream, leaving an amount of pyrolyzed carbon ore upstream of the pyrolysis zone, switching from introducing the oxygen-free heating gas to introducing the cooling fuel gas; and
forming the oxidation zone by oxidation of the cooling fuel gas in the heated pyrolyzed carbon ore.