[1]韩融,刘晋文,赵晨曦,等.生物物理预处理污泥热解特性及动力学分析[J].华侨大学学报(自然科学版),2017,38(3):362-367.[doi:10.11830/ISSN.1000-5013.201703014]
 HAN Rong,LIU Jinwen,ZHAO Chenxi,et al.Pyrolysis Kinetics and Thermal Degradation Characteristics of Pre-Treated Municipal Sewage Sludge by Biophysical Processing[J].Journal of Huaqiao University(Natural Science),2017,38(3):362-367.[doi:10.11830/ISSN.1000-5013.201703014]
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生物物理预处理污泥热解特性及动力学分析()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第3期
页码:
362-367
栏目:
出版日期:
2017-05-20

文章信息/Info

Title:
Pyrolysis Kinetics and Thermal Degradation Characteristics of Pre-Treated Municipal Sewage Sludge by Biophysical Processing
文章编号:
1000-5013(2017)03-0362-06
作者:
韩融12 刘晋文3 赵晨曦4 李晓洁12
1. 长安大学 环境科学与工程学院, 陕西 西安 710054;2. 陕西省地质矿产实验研究所 陕西省矿产资源勘查与综合利用重点实验室, 陕西 西安 710054;3. 西安建筑科技大学 环境与市政工程学院, 陕西 西安 710055;4. 新疆维吾尔自治区环境保护科学研究院, 新疆 乌鲁木齐 830011
Author(s):
HAN Rong12 LIU Jinwen3 ZHAO Chenxi4 LI Xiaojie12
1. School of Environmental Science and Engineering, Chang’an University, Xi’an 710054, China; 2. Shaanxi Key Laboratory of Mineral Resource Exploration and Comprehensive Utilization, Shaanxi Institute of Geology and Mineral Resources Experiment, Xi’an 710054, China; 3. School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 4. Xinjiang Academy of Environmental Protection Science, Urumqi 830011, China
关键词:
污泥 热解动力学 生物物理预处理 热重分析
Keywords:
municipal sewage sludge pyrolysis kinetics biophysical pre-treatment thermogravimetric analysis
分类号:
X730
DOI:
10.11830/ISSN.1000-5013.201703014
文献标志码:
A
摘要:
利用污泥生物物理预处理,获得新型干化颗粒化产物.在不同升温速率条件下,采用热重-差式(TGA-DSC)型热分析仪研究从30 ℃升温至900 ℃时,生物物理预处理污泥的热解规律;同步连接质谱,在线监测热解气释放,研究各物质组成的热分解特性,并通过动力学方程表征生物物理预处理污泥的热解反应机理.结果表明:表观活化能分别为25.46,14.48,48.15,85.22和 60.16 kJ·mol-1;氢气释放主要在450,700 ℃附近,分别由热挥发作用和成焦作用所致,其中,成焦过程为主要因素;甲烷在450 ℃附近呈现单峰分解的规律;CO2在350,450,700 ℃附近分3阶段释放.
Abstract:
After biophysical drying, a novel biophysical dried sludge particle was obtained. The pyrolysis characteristics of the products were investigated using thermo gravimetric analysis-differential scanning calorimetry(TGA-DSC), with the materials decomposing between 30 ℃ to 900 ℃ at different heating rates. The product gas was detected on-line by mass spectrograph coupled with TGA, and the pseudo first-order kinetics -收稿日期:2016-07-13通信作者:韩融(1983-),女,副教授,博士,主要从事污泥处理处置及资源化的研究.E-mail:hanrong-1983@163.com.基金项目:国家自然科学青年基金资助项目(21407012); 新疆维吾尔自治区科技支疆计划项目(201491113); 陕西省自然科学基础研究计划项目(2015JQ5178); 陕西省矿产资源勘查与综合利用重点实验室开放课题基金资助项目(2014HB005)http://www.hdxb.hqu.edu.cnof multicomponent model was utilized to describe the component degradations. The results showed that the apparent activation energies were calculated at 25.46,14.48,48.15,85.22 and 60.16 kJ·mol-1, respectively. Hydrogen release was mainly in the vicinity of 450 ℃ and 700 ℃, which was caused by thermal volatilization and charring processrespectively. Especially, the charring process was mainly responsible for the H2 generation. Methane release was mainly in the vicinity of 450 ℃ and carbon dioxide in the vicinity of 350, 450, 700 ℃.

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备注/Memo

备注/Memo:
收稿日期: 2016-07-13
通信作者: 韩融(1983-),女,副教授,博士,主要从事污泥处理处置及资源化的研究.E-mail:hanrong-1983@163.com.
基金项目: 国家自然科学青年基金资助项目(21407012); 新疆维吾尔自治区科技支疆计划项目(201491113); 陕西省自然科学基础研究计划项目(2015JQ5178); 陕西省矿产资源勘查与综合利用重点实验室开放课题基金资助项目(2014HB005)
更新日期/Last Update: 2017-05-20