Foundry coke products, and associated systems, devices, and methods
AssigneeSuncoke Technology and Development LLC
InventorsJohn Francis Quanci, John Michael Richardson, Jonathan Hale Perkins
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Abstract
A coke product configured to be used in foundry cupolas to melt iron and produce cast iron products is disclosed herein. In some embodiments, the coke product has a Coke Reactivity Index (CRI) of at least 30% and an ash fusion temperature (AFT) less than 1316° C. Additionally or alternatively, the coke product can comprise (i) an ash content of at least 8.0%, (ii) a volatile matter content of no more than 1.0%, (iii) a Coke Strength After Reaction (CSR) of no more than 40%, (iv) a 2-inch drop shatter of at least 90%, and//or (v) a fixed carbon content of at least 85%.
Claims25
A coke product, comprising:
- a Coke Reactivity Index (CRI) of at least 30%;
- and
- an ash fusion temperature (AFT) no more than 1316° C.
A coke product, comprising:
- ash having a composition that satisfies the following equation:
- Ash Fusion Temperature (AFT)=19×(Al2O3_mass_fraction)+15×(SiO2_mass_fraction+TiO2_mass_fraction)+10×(CaO_mass_fraction+MgO_mass_fraction)+6×(Fe2O3_mass_fraction+Na2O_mass_fraction+K2O_mass_fraction),
- wherein:
- the AFT is a value between 982° C. and 1426° C.;
- the SiO2_mass_fraction is an SiO2_mass_fraction of the ash;
- the Al2O3_mass_fraction is an Al2O3_mass_fraction of the ash;
- the Fe2O3_mass_fraction is an Fe2O3_mass_fraction of the ash;
- the CaO_mass_fraction is a CaO_mass_fraction of the ash;
- the MgO_mass_fraction is an MgO_mass_fraction of the ash;
- and
- the K2O_mass_fraction is an K2O_mass_fraction of the ash.
A coke product, comprising:
- ash having a composition that satisfies the following equation:
- Ash Fusion Temperature (AFT)=19×(Al2O3_mass_fraction)+15×(SiO2_mass_fraction+TiO2_mass_fraction)+10×(CaO_mass_fraction+MgO_mass_fraction)+6×(Fe2O3_mass_fraction+Na2O_mass_fraction),
- wherein:
- the AFT is a value between 982° C. and 1204° C.;
- the SiO2 mass fraction is an SiO2 mass fraction of the ash;
- the Al2O3 mass fraction is an Al2O3 mass fraction of the ash;
- the Fe2O3 mass fraction is an Fe2O3 mass fraction of the ash;
- the CaO_mass_fraction is a CaO_mass_fraction of the ash;
- and
- the MgO_mass_fraction is an MgO_mass_fraction of the ash.
A coke product, comprising:
- ash having a composition that satisfies the following equation:
- Ash Fusion Temperature (AFT)=401.5+26.3×SiO2_mass_fraction+40.7×Al2O3_mass_fraction)−11.0×Fe2O3_Mass_Fraction−7.9×CaO_mass_fraction−112×MgO_mass_fraction),
- wherein:
- the AFT is a value between 1204° C. and 1426° C.;
- the SiO2 mass fraction is an SiO2 mass fraction of the ash;
- the Al2O3 mass fraction is an Al2O3 mass fraction of the ash;
- the Fe2O3 mass fraction is an Fe2O3 mass fraction of the ash;
- the CaO_mass_fraction is a CaO_mass_fraction of the ash;
- and
- the MgO_mass_fraction is an MgO_mass_fraction of the ash.
Dependencies are inferred from the claim text.