Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6656395 | Fuel Processing Technology | 2018 | 7 Pages |
Abstract
Heavy components affect conversion behaviors of sludge-derived pyrolytic liquids during their utilization and contribute significantly to the formation of the notorious tar and soot during sludge gasification and combustion. Understanding the evolution of heavy components during pyrolysis is vital for developing a reliable sewage sludge utilization technology. This study investigates the compositions of oils from the pyrolysis of sewage sludge using an electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT ICR-MS). Hundreds of compounds with molecular mass higher than 400â¯Da were detected from the pyrolytic oil obtained at 450 and 650â¯Â°C. Higher pyrolysis temperatures promoted decomposition and polycondensation of large molecules and increased the amount of nitrogen-containing compounds in the liquid. Aromatic structured molecules consisting of carbon, hydrogen and nitrogen were the predominant compounds at 850â¯Â°C. From the results of this study, the evolution routes of heavy components in the pyrolytic liquid are proposed.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Song Hu, Hengda Han, Syed Shatir A. Syed-Hassan, Yani Zhang, Yi Wang, Liangping Zhang, Limo He, Sheng Su, Long Jiang, Junfeng Cheng, Jun Xiang,