2013 Fiscal Year Final Research Report

Rapid reduction of low grade iron ore and effective energy conversion of low rank coal by enhancing a solid-solid reaction

Research Project

Project/Area Number	23360348
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Research Field	Reaction engineering/Process system
Research Institution	Kyoto University
Principal Investigator	MIURA Kouichi 京都大学, エネルギー理工学研究所, その他 (40111942)
Co-Investigator(Kenkyū-buntansha)	ASHIDA Ryuichi 京都大学, 工学研究科, 助教 (80402965) KAWASE Motoaki 京都大学, 工学研究科, 教授 (60231271)
Project Period (FY)	2011-04-01 – 2014-03-31
Keywords	固固反応 / 低品位鉄鉱石 / 低品位炭 / 還元反応 / ガス化反応
Research Abstract	This works aimed at increasing the efficiency of blast furnace operation in steel industry. To do so, a practical method to promote the slowest solid-solid reaction, reduction of iron ore by coke itself, was proposed. First, it was shown that the solid-solid reaction actually proceeds at as low as 600 C by using nano sized Fe2O3 particles as a model iron ore. Next, a method to realize the rapid solid-solid reaction in blast furnace was examined. It was found that inserting thermo-plastic carbonaceous materials prepared from low rank coal into nano-sized pores formed in a low grade iron ore by hydration is effective to realize the rapid solid-solid reaction.

(3 results)