%0 Journal Article
%T REDUCTION BEHAVIOR OF IRON ORE PELLETS CONTAINING CARBON UNDER NON-ISOTHERMAL CONDITION<br>REDUCTION BEHAVIOR OF IRON ORE PELLETS CONTAININGCARBON UNDER NON-ISOTHERMAL CONDITION
%A XM Yang
%A YS Xie
%A DG Wang DB Huang
%A TJ Yang
%A LT Kong
%A <br>
%J 金属学报(英文版)
%D 2000
%I 
%X The reduction behavior of iron ore pellets containing carbon under non-isothermal condition in the temperature range from 573 to 1373K has been investigated in a laboratory scale setup. The test results show that carbon content has no obvious effect on reduction degree of composite pellets (C/O mole ratio=1.0) by CO in the temperature range from 575 to 1373K under linear temperature-rising program; reduction degree of iron ore pellets containing carbon is larger in 90%CO-10%CO2 mixture than that of in 100%CO atmosphere or in 80%CO-20%CO2 mixture; the s type temperature-rising program has a better effect than that of linear one to increase the reduction degree; and reduction degree of slower linear temperature-rising program is greater than that of faster one, but the final reduction degrees, i.e., those at the highest temperature are about same for various CO partial pressures or temperature-rising programs. The kinetic analysis also shows that the reduction of iron ore-carbon composite pellets by CO or CO-CO2 mixture under non-isothermal condition should be controlled 6y surface reaction, and the apparent reduction activation energy changes with the reduction progress under various test conditions.
%K iron ore pellet containing carbon
%K reduction behavior
%K kinetics
%K activation energy
%K non-isothermal<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=D746A37FC5A1462BB858EFF8FDA9F0F6&yid=9806D0D4EAA9BED3&vid=FC0714F8D2EB605D&iid=94C357A881DFC066&sid=A326383D2F3B3AB0&eid=0AFD076159674A31&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=17