1st Edition

Flash Ironmaking

By H. Y. Sohn Copyright 2023
    296 Pages 133 B/W Illustrations
    by CRC Press

    This book addresses the two major issues faced by the modern steel industry: CO2 emissions and energy consumption. The steel industry accounts for 6.7% of the anthropogenic CO2 emissions and consumes 6% of the total energy consumed in manufacturing. In response to these critical issues, a new technology called flash ironmaking has been developed, aimed at producing iron directly from iron ore concentrate using gaseous reductants/fuels such as natural gas or hydrogen. This ironmaking technology takes advantage of the rapid reaction rate of fine particles and bypasses the palletization process. This book discusses the principles of flash ironmaking, laboratory experiments, and design and operation of a prototype flash reactor.

    • Provides theories and principles of ironmaking and a novel ironmaking technology
    • Includes laboratory experiments to establish the kinetic feasibility of flash ironmaking
    • Covers the design and operation of a prototype flash reactor as well as the design of industrial-size flash ironmaking reactors
    • Describes various cases of flow sheet development, which forms the basis for process analysis and simulation
    • Presents economic analysis case studies

    Presenting a novel technology that addresses contemporary issues facing one of the largest manufacturing industries, this book is aimed at professionals and researchers in metallurgy, materials engineering, manufacturing engineering, and related disciplines.

    1. Introduction. 2. Current Technologies for Ironmaking. 3. Issues Facing the Steel Industry. 4. Flash Ironmaking Technology – Concept Development. 5. Basic Properties and Sources of Magnetite Concentrate. 6. Principles Related to Iron Oxide Reduction. 7. Development of Flash Ironmaking Technology – Reduction Kinetics of Magnetite Concentrate Particles. 8. Development of Flash Ironmaking Technology – Tests in a Laboratory Flash Reactor. 9. Development of Flash Ironmaking Technology – Operation of a Pilot-Plant-Scale Flash Reactor. 10. Development of Flash Ironmaking Technology – Computational Fluid Dynamics Design of Flash Ironmaking Reactors. 11. Flash Ironmaking Flow Sheet Development and Process Analysis. 12. Economic Analysis of Flash Ironmaking Technology.


    H. Y. Sohn is Distinguished Professor, Metallurgical Engineering at University of Utah. He received his Ph.D. degree in Chemical Engineering from the University of California at Berkeley. His research interests include Development of Flash Ironmaking; Plasma-Assisted Chemical Synthesis of Inorganic Nanomaterials; and Process Modeling. He received various prestigious awards and delivered numerous plenary lectures including a briefing to the U.S. Congress on environmental issues in the metallurgical industry. Dr. Sohn has co-authored 5 monographs, 36 book chapters, 5 patents, some 600 papers, co-edited 20 books and served as a Director of TMS-AIME and was a U.S. DOE Fossil Energy Lecturer.