Macro thermogravimetric analysis on oil sludge

XIE Lei; LI Aimin; GAO Ningbo; MA Zhengzhao

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Macro thermogravimetric analysis on oil sludge

更新时间：2025-09-28

- Macro thermogravimetric analysis on oil sludge
- Thermal Power Generation Vol. 43, Issue 3, Pages: 52-57(2014)
- 作者机构：
  
  大连理工大学工业生态与环境工程教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： X703
- Published：2014
- 稿件说明：
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XIE Lei, LI Aimin, GAO Ningbo, et al. Macro thermogravimetric analysis on oil sludge[J]. Thermal power generation, 2014, 43(3): 52-57.
DOI：

XIE Lei, LI Aimin, GAO Ningbo, et al. Macro thermogravimetric analysis on oil sludge[J]. Thermal power generation, 2014, 43(3): 52-57. DOI：

摘要

为了更加接近于实际过程的物料热解析出特性

在自行设计的平台上进行了大物料含油污泥的热重实验研究。结果表明

随着升温速率和粒径的增加

含油污泥的主要失重区间向高温区域移动

其热重的活化能E为14.4~35.81kJ/mol

指前因子A为37.87~844.1s-1

E与lnA之间呈良好的线性关系

符合动力学补偿效应;与微量热重相比

含油污泥大物料热重的失重特性刚开始滞后于微量热重

随后这种趋势逐渐减弱

大物料热重反应活化能与指前因子数值均小于微量热重。

Abstract

To investigate the actual pyrolysis characteristics of oil sludge as much as possible

a laboratory scale macro thermogravimetric analyzer was designed to conduct the relative experiments.The effects of heating rate and particle size on thermal behaviour of oil sludge were analyzed

and the results were compared with that obtained by the conventional thermogravimetric analyzer.Moreover

the distributed activation energy kinetic model was employed to obtain the reactive kinetic parameters.The results show that

with an increase in heating rate and particle size

the main weight loss occurred at higher temperatures;the activation energy E was between 14.4 kJ/mol and 35.81kJ/mol

and the pre-exponential factor A ranged from 37.87s-1 to 844.1s-1

indicating there was good linear relationship between E and lnA

which satisfied the kinetic compensation effect;at the very beginning

weight loss of the oil sludge on the macro thermogravimetric analyzer lagged behind that on the micro thermogravimetric analyzer

but then this trend gradually weakened;both the reaction activation energy and pre-exponential factor obtained from the macro thermogravimetric analyzer were smaller than that from the micro thermogravimetric analyzer.

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