NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner

Based on the temperature and O2 concentration in the cement precalciner, co-combustion of anthracite and Refuse Derived Fuel (RDF) were investigated using a thermogravimetric analyzer (TGA) and a double furnaces reactor. Both the TGA and double furnaces reactor results indicated that the co-combusti...

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Main Authors: Xiaolin Chen, Junlin Xie, Shuxia Mei, Feng He
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/2/337
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author Xiaolin Chen
Junlin Xie
Shuxia Mei
Feng He
author_facet Xiaolin Chen
Junlin Xie
Shuxia Mei
Feng He
author_sort Xiaolin Chen
collection DOAJ
description Based on the temperature and O2 concentration in the cement precalciner, co-combustion of anthracite and Refuse Derived Fuel (RDF) were investigated using a thermogravimetric analyzer (TGA) and a double furnaces reactor. Both the TGA and double furnaces reactor results indicated that the co-combustion characteristics were the linear additive effect in the devolatilization stage, while it was the synergistic effect in the char combustion stage. During co-combustion, at 900 °C, NOx released rapidly during the devolatilization stage, but in the char combustion stage the NOx formation were inhibited; at 800 °C, a large amount of CO formed, which could reduce the NOx. In general, at 900 °C and 800 °C, the application of co-combustion could lower the NOx emission yield and lower the NOx conversion. By combining the combustion characteristics with the XRD results, it was indicated that during co-combustion, at 800 °C, the SO2 formation reaction was inhibited, and the SO2 yield and conversion were quite low.
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spelling doaj.art-f1881a2d4fe049ddaf803c54f972b64f2022-12-22T03:59:50ZengMDPI AGEnergies1996-10732018-02-0111233710.3390/en11020337en11020337NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of PrecalcinerXiaolin Chen0Junlin Xie1Shuxia Mei2Feng He3State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaBased on the temperature and O2 concentration in the cement precalciner, co-combustion of anthracite and Refuse Derived Fuel (RDF) were investigated using a thermogravimetric analyzer (TGA) and a double furnaces reactor. Both the TGA and double furnaces reactor results indicated that the co-combustion characteristics were the linear additive effect in the devolatilization stage, while it was the synergistic effect in the char combustion stage. During co-combustion, at 900 °C, NOx released rapidly during the devolatilization stage, but in the char combustion stage the NOx formation were inhibited; at 800 °C, a large amount of CO formed, which could reduce the NOx. In general, at 900 °C and 800 °C, the application of co-combustion could lower the NOx emission yield and lower the NOx conversion. By combining the combustion characteristics with the XRD results, it was indicated that during co-combustion, at 800 °C, the SO2 formation reaction was inhibited, and the SO2 yield and conversion were quite low.http://www.mdpi.com/1996-1073/11/2/337NOxSO2co-combustionRDFanthraciteprecalciner
spellingShingle Xiaolin Chen
Junlin Xie
Shuxia Mei
Feng He
NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner
Energies
NOx
SO2
co-combustion
RDF
anthracite
precalciner
title NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner
title_full NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner
title_fullStr NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner
title_full_unstemmed NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner
title_short NOx and SO2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner
title_sort nox and so2 emissions during co combustion of rdf and anthracite in the environment of precalciner
topic NOx
SO2
co-combustion
RDF
anthracite
precalciner
url http://www.mdpi.com/1996-1073/11/2/337
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AT shuxiamei noxandso2emissionsduringcocombustionofrdfandanthraciteintheenvironmentofprecalciner
AT fenghe noxandso2emissionsduringcocombustionofrdfandanthraciteintheenvironmentofprecalciner