Coke manufacturing method

JP2026036609APending Publication Date: 2026-03-05JFE STEEL CORP
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2024139318
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

When a portion of coal used in coke production is replaced with biomass-derived materials, the strength of the resulting coke is significantly reduced due to poor adhesion at the interface between biomass-derived and coal-derived portions.

Method used

Control the properties of carbonized biomass using the H/C ratio, which represents the ratio of H atoms to C atoms, to ensure it falls between 0.20 and 0.70, and use it in a blend with coal for coke production, with a particle size of 3 mm or less and a blending ratio of 1 to 10 mass%, to promote bonding and maintain coke strength.

Benefits of technology

This method enables the production of high-strength coke while reducing carbon dioxide emissions by utilizing carbon-neutral biomass, ensuring adequate bonding and maintaining coke strength without excessive energy consumption.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026036609000001_ABST
    Figure 2026036609000001_ABST
Patent Text Reader

Abstract

To provide a technology for producing high-strength coke even when carbonized biomass is blended as part of the raw materials for coke production. [Solution] A method for producing coke includes blending carbonized biomass obtained by heat-treating biomass with a portion of blended coal for coke production, followed by carbonization, wherein the H / C ratio, which represents the ratio of the number of H atoms to the number of C atoms contained in the carbonized biomass, is 0.20 or more and 0.70 or less.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Method of producing highly reactive coke for blast furnace

    JP2014077086A