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Investigation of sulfur forms and transformation during the co-combustion of sewage sludge and coal using X-ray photoelectron spectroscopy by Pei-Sheng Li; Yi Hu; Wan Yu; Ya-Nan Yue; Qiao Xu; Song Hu; Nian-Su Hu; Jun Yang is a Environmental Science article available to read on EtoBox.
What is Investigation of sulfur forms and transformation during the co-combustion of sewage sludge and coal using X-ray photoelectron spectroscopy about?
X-ray photoelectron spectroscopy was used to investigate the characteristics and evolution of sulfur (S) in mixtures of bituminous coal and sewage sludge (SS) and their chars during isothermal combustion. Five groups of mixtures with SS content of 0%, 10%, 20%, 30% and 100%, were examined at different burn-off ratios (ˇ) of 0, 30%, 50%, 70% and 100%. The S in the coal mainly exist as the forms of mercaptan (S1), sulfide (S2), thiophene (S3), sulfoxide (S4), sulfone (S5) and sulfate (S6). During the coal combustion process, the content of S1 and S2 decreased, while that of S3 and S5 increased in the early stage and decreased in the late stage. The S4 content increased throughout the entire process of combustion. Small amount of S6 was detected, showing a fluctuated pattern. The trend of S1, S2, S5 and S6 in SS was alike with that in coal, whereas S4 decreased at the end of combustion. The changing process of S3 in SS was opposite to that of coal, while the composition of S in the mixtures resulted from the mixing of coal and SS. The transformation of each functional group during co-combustion were correlated with their transformation characteristics during the mono-combustion of coa
Who reads Investigation of sulfur forms and transformation during the co-combustion of sewage sludge and coal using X-ray photoelectron spectroscopy?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Pei-Sheng Li; Yi Hu; Wan Yu; Ya-Nan Yue; Qiao Xu; Song Hu; Nian-Su Hu; Jun Yang
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)
- Published
- 2009
- Language
- EN
- Field
- Environmental Science (Physical Sciences)