[1]朱颖,金保升,肖刚,等.不同气氛下聚乙烯低温热解气化特性分析[J].东南大学学报(自然科学版),2007,37(5):808-811.[doi:10.3969/j.issn.1001-0505.2007.05.014]
 Zhu Ying,Jin Baosheng,Xiao Gang,et al.Analysis on low-temperature polyethylene pyrolysis and gasification in different atmospheres[J].Journal of Southeast University (Natural Science Edition),2007,37(5):808-811.[doi:10.3969/j.issn.1001-0505.2007.05.014]
点击复制

不同气氛下聚乙烯低温热解气化特性分析()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第5期
页码:
808-811
栏目:
环境科学与工程
出版日期:
2007-09-20

文章信息/Info

Title:
Analysis on low-temperature polyethylene pyrolysis and gasification in different atmospheres
作者:
朱颖12 金保升1 肖刚1 王小芳1 张华刚1 刘文杰1
1 东南大学能源与环境学院, 南京 210096; 2 江苏经贸职业技术学院工程技术系, 南京 210007
Author(s):
Zhu Ying12 Jin Baosheng1 Xiao Gang1 Wang Xiaofang1 Zhang Huagang1 Liu Wenjie1
1 School of Energy and Environment, Southeast University, Nanjing 210096, China
2 Department of Engineering Technology, Jiangsu Institute of Economic and Trade Technology, Nanjing 210007, China
关键词:
城市生活垃圾 聚乙烯 热解 气化
Keywords:
municipal waste solid polyethylene pyrolysis gasification
分类号:
X705
DOI:
10.3969/j.issn.1001-0505.2007.05.014
摘要:
气化熔融焚烧技术是高效率低污染的新型城市生活垃圾处理技术,该技术的关键环节是垃圾低温(600~650 ℃)气化.以垃圾中主要可燃组分聚乙烯为试验物料,采用管式炉,分别在N2,CO2,N2+H2O,N2+O2,N2+O2+CO2+H2O气氛下,进行了低温(600 ℃)热解气化特性的试验研究.试验结果表明:反应气氛中含O2能显著提高气体产物中CO2的含量,从而提高了碳转化率,但能量转化效率和气体低位热值均较低; CO2气氛下CO的产生量明显增高,从而使气体低位热值和碳转化率显著增大; H2O气氛有利于H2的生成和产气量、气体低位热值、能量转化效率的提高,其中能量转化效率可达80%,但对大分子烃族类二次裂解具有一定的抑制作用; 气体低位热值在N2+O2+CO2+H2O混合气氛下最大,达到12.8 MJ/m3.
Abstract:
The municipal solid waste(MSW)gasification and melting technology is a new technology with low emission and high efficiency, and its critical procedure lies in the low-temperature(600 ℃-650 ℃)gasification of MSW. By a tubular furnace, the experimental studies on the characteristics of low-temperature(600 ℃)polyethylene pyrolysis and gasification were performed under different atmospheres(N2,CO2,N2+H2O,N2+O2,N2+O2+CO2+H2O). The results show that in O2 atmosphere, the production of carbon dioxide and thus the carbon conversion efficiency increases, but the low heating value(LHV)of gases produced and the energy conversion efficiency decrease. In CO2 atmosphere, the higher yield of carbon monoxide results in higher LHV and higher carbon conversion efficiency. Adding H2O into atmosphere can increase the yield of hydrogen, the production of gas, LHV, the energy conversion efficiency and the carbon conversion efficiency. But H2O in atmosphere can inhibit the secondary cracking reactions of larger molecule hydrocarbon products. The energy conversion efficiency is up to 80% in H2O atmosphere. LHV can reach 12.8 MJ/m3 in mixed atmosphere.

参考文献/References:

[1] 寺屿均.次世代型ごみ中间处理技术[J].日本エネルギー学会志,1998,77(6):472-477.
[2] 袁兴中,李法鸿,陈晓青,等.聚乙烯塑料二段法裂解的研究[J].湖南大学学报:自然科学版,2001,28(6):75-79.
  Yuan Xingzhong,Li Fahong,Chen Xiaoqing,et al.Study on the catalytic pyrolysis of polyethene by two step [J].Journal of Hunan University:Natural Sciences Edition,2001,28(6):75-79.(in Chinese)
[3] 冀星,刘以荣,钱家麟,等.相继等温热解气相色谱法研究高密聚乙烯的热解[J].中国环境科学,1999,19(4):301-305.
  Ji Xing,Liu Yirong,Qian Jialin,et al.The pyrolysis kinetics of high density polyethylene(HDPE)by sequential pyrolysis gas chromatography [J].China Environmental Science,1999,19(4):301-305.(in Chinese)
[4] Nilgun Kiran Ciliz,Ekrem Ekinci,Colin E Snape.Pyrolysis of virgin and waste polypropylene and its mixtures with waste polyethylene and polystyrene [J].Waste Management,2004,24(2):173-181.
[5] 沈祥智,严建华,池涌,等.聚乙烯在连续给料外热式回转窑内的热解研究[J].中国电机工程学报,2006,26(16):126-132.
  Shen Xiangzhi,Yan Jianhua,Chi Yong,et al.Study on polyethylene pyrolysis in continuous-feeding external-heating rotary kiln[J]. Proceedings of the CSEE,2006,26(16):126-132.(in Chinese)
[6] 左禹,丁艳军,朱琳,等.小型固定床实验台条件下的聚乙烯热解[J].清华大学学报:自然科学版,2005,45(11):1544-1548.
  Zuo Yu,Ding Yanjun,Zhu Lin,et al.Analys is of polyethylene pyrolys is using a bench scale fixed bed [J]. J Tsinghua Univ:Sci & Tech,2005,45(11):1544-1548.(in Chinese)
[7] Brebu Mihai,Bhaskar Thallada,Murai Kazuya,et al.Thermal degradation of PE and PS mixed with ABS-Br and debromination of pyrolysis oil by Fe-and Ca-based catalysts [J]. Polymer Degradation and Stability,2004,84(1):459-467.
[8] Predel M,Kaminsky W.Pyrolysis of mixed polyolefins in a fluidized-bed reactor and on a pro-GC/MS to yield aliphatic waxes [J].Polymer Degradation and Stability,2000,70(5):373-385.
[9] 肖刚,池涌,倪明江,等.研究简报城市生活垃圾中聚乙烯塑料流化床气化[J].化工学报,2006,57(1):146-150.
  Xiao Gang,Chi Yong,Ni Mingjiang,et al.Fluidized bed gasification of PE plastic in municipal solid waste [J].Journal of Chemical Industry and Engineering,2006,57(1):146-150.(in Chinese)
[10] Mastral F J,Esperanza E,Berrueco C,et al.Fluidized bed thermal degradation production of HDPE in an inert atmosphere and in air-nitrogen mixture [J].Journal of Analytical and Applied Pyrolysis,2003,70(4):1-17.

相似文献/References:

[1]王学涛,金保升,仲兆平,等.城市生活垃圾焚烧底灰熔融处理实验研究[J].东南大学学报(自然科学版),2005,35(1):111.[doi:10.3969/j.issn.1001-0505.2005.01.024]
 Wang Xuetao,Jin Baosheng,Zhong Zhaoping,et al.Study on melting treatment of bottom ashes from municipal solid waste incinerator[J].Journal of Southeast University (Natural Science Edition),2005,35(5):111.[doi:10.3969/j.issn.1001-0505.2005.01.024]

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50676021).
作者简介: 朱颖(1971—),女,博士生, zhuying1971@126.com; 金保升(联系人),男,教授,博士生导师,bsjin@seu.edu.cn.
更新日期/Last Update: 2007-09-20