Feasibility Study for Recovering Waste Heat in the Steelmaking Industry Using a Chemical Recuperator

By N. Maruoka, T. Mizuochi, H. Purwanto, T. Akiyama. 2004

158 citations recorded by the source corpus.

This paper studies the possibility of developing a new heat recovery system from various hot wastes generated by the steelmaking industry, by utilizing the endothermic heat of reaction instead of sensible heat. In the proposed system, the waste heat of the gas was first stored using a Phase Change Material (PCM), and then supplied to an endothermic; methane-steam reforming reaction (MSR) as a heat source. The molten slag was granulated using a rotary cup atomizer (RCA) and the sensible heat of the slag was recovered using MSR. A heat and material balance model was developed to evaluate this system and to predict all its operating data. An exergy analysis and an economic evaluation were conducted on the basis of the predicted data. The results showed that the exergy loss in the proposed system was only 15 % from the total exergy losses in the conventional system, and that the annual cost benefit of the proposed system totaled US$ 409 million from heat recovery, and US$ 1 945 million from slag granulation.

Subfields: Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/f424fce98c319bec4e41b07b556b54c48abee031

How researchers see this paper

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In Mechanical Engineering

1. L. F. Cabeza
2. L. Miró
3. C. Barreneche
4. A. I. Fernandez
5. Ahmet Sari
6. A. Karaipekli
7. Changying Zhao

Citations in the corpus

• Advances in the valorization of waste and by-product materials as thermal energy storage (TES) materials (2016, background): “0 per ton in 2009 [72] quite cheaper than the common storage materials used until the moment as molten salts.”