ReEngineered feedstocks for pulverized coal combustion emissions control

Cheng Zhu, Sheng Chu, Geoffrey A. Tompsett, Jin Yang, T. J. Mountziaris, Paul J Dauenhauer

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

New coal reaction technology called ReEngineered Feedstock (ReEF), consisting of post-recycled paper and plastics, was evaluated for combustion emissions control when cofiring with pulverized coal. Experiments were conducted with four types of ReEF in a 2 in. diameter laboratory-scale fluidized bed combustor system heated to 1200, 1400, and 1600 °C. Flue gas emission was continuously monitored with an online infrared multigas analyzer and mass spectrometer. The results indicate that co-firing ReEF with coal provides SO2 emission reduction in flue gas up to 85% and moderate decrease in NO emissions, as well as higher carbon conversion than pure coal combustion. ReEF, slag and fly ash solids were were analyzed by X-ray diffraction; identification of sulfates in the product ash conclusively supports the mechanism of in situ sulfur capture.

Original languageEnglish (US)
Pages (from-to)17919-17928
Number of pages10
JournalIndustrial and Engineering Chemistry Research
Volume53
Issue number46
DOIs
StatePublished - Nov 19 2014

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