Biotar ironmaking using wooden biomass and nanoporous iron ore
Biotar ironmaking using wooden biomass and nanoporous iron ore
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DOI：
10.1021/ef800967h
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发表时间：
2009-02
期刊：
影响因子：
5.3
通讯作者：
Yuichi Hata;H. Purwanto;S. Hosokai;J. Hayashi;Y. Kashiwaya;T. Akiyama
中科院分区：
文献类型：
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作者：
Yuichi Hata;H. Purwanto;S. Hosokai;J. Hayashi;Y. Kashiwaya;T. Akiyama
本文介绍了一种新型生物质炼铁的基础实验，该方法采用低品位铁矿石和木质生物质来促进直接还原，FeO + C = Fe + CO，其中脱水的多孔褐铁矿铁矿石充满了生物质焦油沉积的碳。在我们的实验中，三种含有不同量化合水（CW；1.6、3.8和9.0质量%）的铁矿石首先在450℃下脱水，使其多孔，然后与松树生物质一起在500−600℃下加热气化，产生的焦油蒸气被分解，从而在多孔矿石内/上沉积碳。脱水处理通过去除 CW 使铁矿石变得多孔，并显着增加了其 Brunauer-Emmett-Teller (BET) 比表面积和孔隙率。在生物质气化分解焦油蒸气的第二次处理中，生物质转化为焦炭、焦油蒸气和还原性气体；生物焦油在多孔矿石中分解并碳化。有趣的是，...
This paper describes fundamental experiments of a new biomass ironmaking that employs low-grade iron ore and woody biomass for promoting the direct reduction, FeO + C = Fe + CO, in which dehydrated, porous limonite iron ore was filled with carbon deposited from the biomass tar, biotar. In our experiments, three types of iron ores containing different amounts of combined water (CW; 1.6, 3.8, and 9.0 mass %) were first dehydrated at 450 °C to make them porous and then heated with pine tree biomass at 500−600 °C for the gasification and the tar vapor generated was decomposed to deposit carbon within/on the porous ores. The dehydration treatment made the iron ores porous by removing CW and significantly increased their Brunauer−Emmett−Teller (BET) specific surface areas and porosities. In the second treatment of biomass gasification and decomposition of tar vapor, the biomass was changed into char, tar vapor, and reducing gas; the biotar was decomposed and carbonized within the porous ores. Interestingly, the...