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[1]万龙,朱跃钊,高英,等.高湿污泥与生物质的共热解实验研究[J].南京工业大学学报(自然科学版),2019,41(02):232-238.[doi:10.3969/j.issn.1671-7627.2019.02.016]
 WAN Long,ZHU Yuezhao,GAO Ying,et al.Co-pyrolysis of high humidity sewage sludge and biomass[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(02):232-238.[doi:10.3969/j.issn.1671-7627.2019.02.016]
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高湿污泥与生物质的共热解实验研究()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年02期
页码:
232-238
栏目:
出版日期:
2019-03-19

文章信息/Info

Title:
Co-pyrolysis of high humidity sewage sludge and biomass
文章编号:
1671-7627(2019)02-0232-07
作者:
万龙1朱跃钊2高英1朱锦娇2朱广阔2
1.南京工业大学 能源科学与工程学院,江苏 南京 211800; 2.南京工业大学 机械与动力工程学院,江苏 南京 211800
Author(s):
WAN Long1ZHU Yuezhao2GAO Ying1ZHU Jinjiao2ZHU Guangkuo2
1.School of Energy Science and Engineering,Nanjing Tech University,Nanjing 211800,China; 2.School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
生活污泥 生物质 共热解 移动床 掺混比
Keywords:
sewage sludge biomass co-pyrolysis moving bed adding ratio
分类号:
X703.1
DOI:
10.3969/j.issn.1671-7627.2019.02.016
文献标志码:
A
摘要:
以生活污泥(含水率79%)与生物质(含水率12.87%)的混合物为原料,进行共热解气化的研究。采用热分析仪对混合试样热解特性进行表征,同时在移动床反应器中考察温度和掺混比对热解的影响。此外,还采用电感耦合等离子体-原子光谱法(ICP-AES)对热解前后重金属含量的变化进行分析。热分析结果表明:在有机物分解和碳化阶段,松木屑的掺入对污泥热解温度的影响较小,但可提高污泥的热解速率。污泥与生物质的共热解实验结果表明:随着温度的升高,气体产率明显增大,可燃气体中H2的体积分数增大,从25.39%增加到49.06%,说明高温有利于H2的生成。为了获得较好的产气效果,污泥的掺混比应为40%~60%。ICP-AES分析结果表明:热解过后重金属主要固定在固体产物中,固体产物中重金属含量满足农用标准。
Abstract:
The mixture of sewage sludge(water content 79%)and biomass(water content 12.87%)was used as raw materials.The pyrolysis characteristics of the samples were studied by thermogravimetric analyzer.The effects of temperature and sludge adding ratio on pyrolysis were investigated in the moving bed reactor.Heavy metal contents before and after pyrolysis were analyzed by inductively coupled plasma atomic emission spectroscopy(ICP-AES).The thermogravimetric analysis results showed that the blending of pine saw dust had little effect on the pyrolysis temperature,and the pyrolysis rate of sludge was improved in the organic matter decomposition and carbonation stage.In the moving bed gasifier,gas yield increased significantly and H2 content increased from 25.39% to 49.06% with the increase of temperature, it was indicated that high temperature promoted the formation of H2.A better gas production could be obtained with the sludge adding ratio from 40% to 60%.The analysis of heavy metal contents by ICP-AES showed that heavy metals were mainly remained in solid product and heavy metal contents in solid product were below the agricultural standard.

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备注/Memo

备注/Memo:
收稿日期:2017-04-27
基金项目:江苏省科技支撑计划(工业)(BE2013127); 江苏省环保厅重点课题(2013028)
作者简介:万龙(1992—),男,E-mail:1279351334@qq.com; 朱跃钊(联系人),教授,E-mail:zyz@njtech.edu.cn.
引用本文:万龙,朱跃钊,高英,等.高湿污泥与生物质的共热解实验研究[J].南京工业大学学报(自然科学版),2019,41(2):232-238..
更新日期/Last Update: 2019-03-31