Pitch-Strengthened Iron Coke

34.4% stronger after gasification

Improves hot tensile strength after gasification by promoting anisotropic texture and uniform pore structure while maintaining gasification reactivity.

Wang, Jie · Wang, Wei · Chen, Xuheng · Bao, Junfang · Ruilin, Lin · Xu, Runsheng

Fuel 2025

Specifications

Increase in thermal tensile strength

{'zh': '34.4', 'en': '34.4'} %

Advantages

Significantly stronger after gasification

Coal tar pitch promotes anisotropic texture development and improves pore uniformity, effectively enhancing strength while maintaining gasification reactivity.

Atomic-level degradation mechanism revealed

Iron enhances electron transfer to weaken the C-O bond order in CO2 and disrupts the conjugated π bond of carbon layers, reducing carbon structure order and accelerating carbon matrix consumption.

Applications

• low-carbon ironmaking：Provides high-strength, high-reactivity iron coke for blast furnaces to reduce carbon emissions.
• metallurgical coke：Improves post-gasification strength to extend the service life of metallurgical coke.
• catalytic gasification：Reveals iron-catalyzed gasification mechanisms to guide catalyst regulation.