文献类型：期刊文献

英文题名：Impacts of drying treatment on pyrolysis of oily sludge: Kinetic analysis and product evaluation

作者：Song, Siduo[1]; Bai, Zhishan[1]; Zhang, Weijie[1]; Ma, Likun[1]; Liu, Xuedong[2]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou, 213164, China

年份：2026

卷号：95

起止页码：252

外文期刊名：Chinese Journal of Chemical Engineering

收录：EI(收录号：20262721049019);Scopus(收录号：2-s2.0-105043719854)

语种：英文

外文关键词：Activation analysis - Activation energy - Cost benefit analysis - Cost effectiveness - Cracking (chemical) - Drug products - Drying - Infrared spectroscopy - Kinetics - Mass spectrometry

摘要：Drying pretreatment is a widely adopted preprocessing method prior to the pyrolysis of oily sludge (OS). In this study, a tube furnace, thermogravimetric–infrared spectroscopy (TG-IR), and gas chromatography–mass spectrometry (GC-MS) were employed to evaluate and compare the pyrolysis behaviors of original and dried OS, and to analyze product distributions under various conditions. The results indicate that both original and dried OS undergo pyrolysis in five distinct stages, among which stages 2, 3, and 4 are the most significant. Kinetic analysis reveals that dried OS exhibits lower activation energies of 56.032, 152.166, and 211.462 kJ·mol?1 for these three stages, corresponding to reaction mechanisms of D6 (3D diffusion), F4 (chemical reaction) and F4, respectively. In contrast, original OS exhibits higher activation energies of 81.481, 235.933, and 214.194 kJ·mol?1, associated with the mechanisms A8 (random nucleation and growth), F4, and F1 (order of reaction), respectively. TG-IR analysis identifies H2, CO2, CO, and CH4 as the primary gaseous products from dried OS, with the optimal methane-rich gas yield achieved at temperatures below 724.61 °C. Furthermore, GC-MS analysis of the pyrolysis oil obtained from dried OS at 600 °C reveals higher concentrations of hydrocarbons and oxygenated compounds, along with reduced levels of nitrogen-containing and hazardous constituents, suggesting its superior suitability and cost-effectiveness as a recyclable fuel. ? 2026