Biomass reducing agent utilisation in rotary hearth furnace process for DRI production

被引：19

作者：

Han, H. ^{[1
]}

Duan, D. ^{[1
]}

Yuan, P. ^{[2
]}

Li, D. ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China

[2] Hebei United Univ, Coll Met & Energy, Tangshan 063009, Hebei, Peoples R China

来源：

IRONMAKING & STEELMAKING | 2015年 / 42卷 / 08期

关键词：

Biomass; Carbon containing pellet; Rotary hearth furnace; Direct reduced iron; REDUCTION; CARBON; IRON; MODEL;

D O I：

10.1179/1743281215Y.0000000001

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This study aims to provide a theoretical and technical basis for utilisation of biomass (bamboo char, charcoal and straw fibre) in the rotary hearth furnace process to produce direct reduced iron. Each biomass material has strengths and weaknesses. The bamboo char pellets possess high fixed carbon content, but the lower strength and the expansion rate of pellets make it difficult to reach production requirements. Although the charcoal based pellets are similar to coal based pellets, their strength is the lowest of these reducing agents. The straw fibre based pellets possess high strength and large volume shrinkage, but the low fixed carbon content results in low productivity. Using biomass in a combination of these alternatives can enable coal to be replaced and produce pellets with a higher metallization than with coal.

引用

下载

页码：579 / 584

页数：6

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