Importance

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Abstract

The present invention provides a method for producing sponge iron comprising the steps of: subjecting a cracking feedstock containing low-carbon alkanes to a steam cracking reaction in which the energy is provided by electricity; separating the products of steam cracking reaction to give a mixed gas containing hydrogen, methane and ethane, as well as ethylene, propylene and/or 1,3-butadiene; and mixing the mixed gas with water and/or CO₂ to produce a syngas for producing sponge iron by a catalytic conversion reaction in which the energy is provided by electricity. The present invention utilizes electricity to provide energy for the steam cracking reaction and the catalytic conversion reaction through an electromagnetic coil, which is a new use of electricity and solve the current problem of excess electricity. Moreover, utilizing the electromagnetic coil to provide power can make the heat distribution in the reaction tube more uniform, and allow easier control of the reaction temperature and the progress of the reaction.

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First Claim