Coal blends, foundry coke products, and associated systems, devices, and methods
AssigneeSuncoke Technology and Development LLC
InventorsJohn Francis Quanci, John Michael Richardson, Jonathan Hale Perkins
Life of this patent
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Abstract
Methods and systems for coking coal blends to produce foundry coke products are disclosed herein. Methods for producing coke products can include charging a coal blend into a coke oven; and heating the charged coal blend such that a crown temperature of the coke oven is greater than a lower bound coking temperature. The pyrolysis duration begins when the crown temperature of the oven is greater than the lower bound coking temperature, and ends when the crown temperature of the oven is less than the lower bound coking temperature.
Claims21
A method of producing a coke product, the method comprising:
- adding water to a coal blend;
- charging the coal blend into a coke oven;
- and
- heating the charged coal blend such that, during a pyrolysis duration of a coking cycle for the charged coal blend, a crown temperature of the coke oven is greater than a lower bound coking temperature,
- wherein:
- the lower bound coking temperature is within a range of 1200-2300° F.;
- the pyrolysis duration begins when the crown temperature of the oven is greater than the lower bound coking temperature;
- the pyrolysis duration ends when the crown temperature of the oven is less than the lower bound coking temperature;
- the crown temperature is greater than a sole flue temperature of the coke oven throughout the pyrolysis duration;
- and
- the pyrolysis duration is greater than 24 hours.
A method, comprising:
- heating a coal blend within a coke oven to a coking temperature during a pyrolysis duration of a coking,
- wherein:
- the pyrolysis duration begins when a crown temperature of the oven is greater than a lower bound coking temperature;
- the pyrolysis duration ends when the crown temperature of the oven is less than the lower bound coking temperature;
- the lower bound coking temperature is within a range of 1200-2300° F.;
- the crown temperature is greater than a sole flue temperature of the coke oven throughout the pyrolysis duration;
- and
- the pyrolysis duration is greater than 24 hours.
Dependencies are inferred from the claim text.