可再生能源2023，Vol.41Issue(12)：1563-1570,8.
废白土热解制备烃类化合物的热解行为分析
Analysis on pyrolysis behavior of hydrocarbon compounds prepared by pyrolysis of spent bleaching clay
摘要
Abstract
In this study,we investigated the pyrolysis behavior of spent bleaching clay by employing both kinetic simulation and pyrolysis test.Additionally,we detailed the pyrolysis reaction pathway of spent bleaching clay.The pyrolysis of spent bleaching clay was analysed using the Kissinger-Akahira-Sunose and Flynn-Wall-Ozawa methods.The analysis revealed two distinct stages,with the activation energy gradually increasing from 207.874 kJ/mol to 455.460 kJ/mol in the first stage,followed by a stable stage.Finally,at the end of pyrolysis,the activation energy sharply increased to 683.229 kJ/mol.The fixed-bed pyrolysis experiments revealed that carboxylic acid was the primary product of the initial spent bleaching clay pyrolysis stage(180～420℃).As the pyrolysis temperature increased,the process progressed to the second stage(420～550℃),whereby carboxylic acid was transformed into aliphatic hydrocarbons,aromatics,ketones,and other minor oxide compounds.These observations were consistent with the findings of the kinetic analysis.This study could offer a sound theoretical foundation for the pyrolysis processing of spent bleaching clay and other oil-bearing solid wastes.关键词
废白土/热重分析/热解特性/热解动力学/反应机理Key words
spent bleaching clay/thermogravimetric analysis/pyrolysis characteristics/pyrolysis kinetics/reaction mechanism分类
能源科技引用本文复制引用
万震,王绍庆,李志合,张安东,李玉峰,张鹏,李果..废白土热解制备烃类化合物的热解行为分析[J].可再生能源,2023,41(12):1563-1570,8.基金项目
国家重点研发计划项目(2019YFD1100602) （2019YFD1100602）
国家自然科学基金项目(52176192) （52176192）
山东省自然科学基金项目(ZR2021ME035,ZR2021QE132). （ZR2021ME035,ZR2021QE132）
