临港含油污泥的热解动力学分析

doi:10.11949/j.issn.0438-1157.20141553

化工学报 ›› 2015, Vol. 66 ›› Issue (S1): 319-325.DOI: 10.11949/j.issn.0438-1157.20141553

临港含油污泥的热解动力学分析

杨淑清, 郑贤敏, 王北福, 杜燕, 王路辉

浙江海洋学院石化与能源工程学院, 浙江舟山 316000

收稿日期:2014-10-15 修回日期:2015-03-16 出版日期:2015-06-30 发布日期:2015-06-30
通讯作者: 王北福
基金资助:
浙江省自然科学基金项目(Y4110245);浙江海洋学院博士启动基金 (21025010508)。

Analysis of pyrolysis kinetics of neighboring-port oil sludge

YANG Shuqing, ZHENG Xianmin, WANG Beifu, DU Yan, WANG Luhui

Department of Chemical Engineering, School of Petrochemical Technology and Energy Engineering, Zhejiang Ocean University, Zhoushan 316000, Zhejiang, China

Received:2014-10-15 Revised:2015-03-16 Online:2015-06-30 Published:2015-06-30
Supported by:
supported by the Natural Science Foundation of Zhejiang Province (Y4110245) and the Basic Research Foundation of Zhejiang Ocean University (21025010508).

摘要/Abstract

摘要：

对含油污泥及其抽提油和热解油的组成进行分析。采用热重分析仪对含油污泥在空气氛下的热重特性进行实验研究, 考察不同升温速率下的热重(TG)和差热分析(DTA)曲线。采用Coats-Redfern积分法, 基于9种不同动力学机制模式函数分别对200～600℃之间的热重分析数据就ln[g (a)/T²]对1/T进行校正决定系数分析, 拟合反应动力学活化能和指前因子。实验结果表明:随着升温速率的增加, 油泥的TG和DTA曲线都向高温方向移动。含油污泥的热解阶段分为200～400℃和400～600℃两个阶段, 第一个阶段符合三维扩散反应动力学机制;第二个阶段含油污泥的热解反应符合一级反应规律。

关键词: 含油污泥, 热解, 抽提, 动力学, 活化能

Abstract:

Based on composition analysis of extract oil and pyrolysis oil from oil sludge, the pyrolysis characteristics of oil sludge in the air were studied experimentally using thermal gravimetric analyzer. The thermogravimetry and differential thermal analysis curve were investigated under different heating rate. Based on Coats-Redfern integral method, the adjusted R- square coefficient of ln [g(a)/T²] versus 1/T for TG datum between 200 and 600℃ was analyzed using nine kinds of different kinetics mechanism functions. The activation energy of reaction and the pre-exponential factor were fitted. The results indicated that TG and DTA curve of oil sludge shifted to higher temperature with the increase of the heating rates. There are two temperature stages in the pyrolysis of oil sludge: 200—400℃ and 400—600℃. The kinetics reaction process of the sample complies with reaction mechanisms of the three dimensional diffusion in the first stage. Pyrolysis reaction of oil sludge of the second stage is in accordance with the rules of the first-order reaction.

Key words: oil sludge, pyrolysis, extract, kinetics, activation energy

中图分类号:

TQ028.8

杨淑清, 郑贤敏, 王北福, 杜燕, 王路辉. 临港含油污泥的热解动力学分析[J]. 化工学报, 2015, 66(S1): 319-325.

YANG Shuqing, ZHENG Xianmin, WANG Beifu, DU Yan, WANG Luhui. Analysis of pyrolysis kinetics of neighboring-port oil sludge[J]. CIESC Journal, 2015, 66(S1): 319-325.

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临港含油污泥的热解动力学分析

Analysis of pyrolysis kinetics of neighboring-port oil sludge

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