The self-reducing pellet production from organic household waste

Alberto Nogueira, Cyro Takano, Marcelo Mourão, Adolfo Pillihuaman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The organic household waste has a growing disposal problem, requiring costly disposal systems. It is necessary to find new applications for these materials; one could be the steelmaking raw material production. In this paper is studied the development of self-reducing pellets from the organic waste pyrolysis, where is generated carbon and condensable and non-condensable volatiles. Non-condensable volatiles were burned and condensable volatiles were recovered. The resulting tar was mixed with iron ore, coal powder and flux (CaO), to then be pelletized together. Compression, falls and tumbler tests were conducted to characterize the pellets before and after heat treatment and reduction processes. The reduction curve and their physical and morphological characterization were measured. The results were as was expected, the fluidized coal create sufficient adhesion that pellets earned resistance with an equivalent resistance of common pellets, showing a good feasibility of this process.

Original languageEnglish
Title of host publication6th International Symposium on High-Temperature Metallurgical Processing - Held During TMS 2015 144th Annual Meeting and Exhibition
EditorsTao Jiang, Jiann-Yang Hwang, Jiann-Yang Hwang, Gerardo R. F. Alvear F., Onuralp Yucel, Xinping Mao, Hong Yong Sohn, Naiyang Ma, Naiyang Ma, Phillip J. Mackey, Thomas P. Battle
PublisherMinerals, Metals and Materials Society
Pages323-330
Number of pages8
ISBN (Electronic)9781119073574
DOIs
StatePublished - 2015
Event6th International Symposium on High-Temperature Metallurgical Processing - TMS 2015 144th Annual Meeting and Exhibition - Orlando, United States
Duration: 15 Mar 201519 Mar 2015

Publication series

NameTMS Annual Meeting
Volume2015-March

Conference

Conference6th International Symposium on High-Temperature Metallurgical Processing - TMS 2015 144th Annual Meeting and Exhibition
Country/TerritoryUnited States
CityOrlando
Period15/03/1519/03/15

Keywords

  • Coal
  • Iron ore
  • Organic household waste
  • Rotary kiln
  • Self-reducing
  • Slag

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