Carbon deposition from biotar by fast pyrolysis using the chemical vInfiltration process within porous low-grade iron ore for iron-making

Rozhan, Alya Naili and Cahyono, Rochim B. and Yasuda, Naoto and Nomura, Takahiro and Hosokai, Sou and Purwanto, Hadi and Akiyama, Tomohiro (2012) Carbon deposition from biotar by fast pyrolysis using the chemical vInfiltration process within porous low-grade iron ore for iron-making. Energy & Fuels, 26 (12). pp. 7340-7346. ISSN 0887-0624

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Abstract

This paper presents a technology for iron-making using biomass and a low grade iron ore by implementing chemical vapor infiltration (CVI) for the tar carbonization process. In this process, tar vapor from pyrolysis of biomass was infiltrated within a porous ore and carbon deposition occurred on the pore surface. For preparation, ore sample was heated in an electric furnace to decompose combined water in the sample, creating nanosized pores. In the experiments, the traditional slow pyrolysis was compared with fast pyrolysis to determine which condition is better for maximizing carbon deposition. Tar vapor from the pyrolysis process was introduced into the porous ore and trapped inside it, where tar decomposed and carbonized within the pores. The product of this process which is a carbon−magnetite composite with close arrangement of iron ore and carbon is useful for reduction of iron by carbon and is able to lower the temperature needed for reduction of iron to occur, as compared to that in steelworks. The purpose of this research is to compare the effects of slow pyrolysis and fast pyrolysis processes on the amount of carbon deposited within iron ore by the tar carbonization process and to observe the reduction reactivity of the carbon-deposited iron ore.

Item Type:	Article (Journal)
Additional Information:	5804/29212
Uncontrolled Keywords:	Electrochemical, Radiational, and Thermal Energy Technology
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Hadi Purwanto
Date Deposited:	14 Mar 2013 12:27
Last Modified:	17 Jul 2014 14:25
URI:	http://irep.iium.edu.my/id/eprint/29212

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