[1]金保升,周宏仓,仲兆平,等.煤气化多环芳烃初步研究[J].东南大学学报(自然科学版),2005,35(1):100-104.[doi:10.3969/j.issn.1001-0505.2005.01.022]
 Jin Baosheng,Zhou Hongcang,Zhong Zhaoping,et al.Preliminary study on PAHs emission from coal gasification[J].Journal of Southeast University (Natural Science Edition),2005,35(1):100-104.[doi:10.3969/j.issn.1001-0505.2005.01.022]
点击复制

煤气化多环芳烃初步研究()
分享到:

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

卷:
35
期数:
2005年第1期
页码:
100-104
栏目:
能源与动力工程
出版日期:
2005-01-20

文章信息/Info

Title:
Preliminary study on PAHs emission from coal gasification
作者:
金保升 周宏仓 仲兆平 肖睿 黄亚继
东南大学洁净煤发电及燃烧技术教育部重点实验室, 南京 210096
Author(s):
Jin Baosheng Zhou Hongcang Zhong Zhaoping Xiao Rui Huang Yaji
Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
多环芳烃 分布特征 煤气化 流化床
Keywords:
PAHs distribution character coal gasification fluidized bed
分类号:
TK229
DOI:
10.3969/j.issn.1001-0505.2005.01.022
摘要:
为了研究煤及其气化产物中多环芳烃的分布特征,在一台小型常压流化床气化炉上进行了以空气和水蒸气为气化剂的煤气化试验.经索氏萃取和K-D浓缩后,采用带荧光检测器和二极管矩阵检测器的高效液相色谱仪对原煤、底渣、旋风焦、布袋焦和煤气中被US EPA列为优控污染物名单的16种多环芳烃进行了测定.试验结果表明:煤气化前后多环芳烃质量分数和毒性当量质量分数的分布特征相似,但多环芳烃的组成和质量分数不同; 煤化程度增加,原煤多环芳烃质量分数和毒性当量质量分数减小,煤气化多环芳烃质量分数先增后减,毒性当量质量分数与煤化程度呈线性关系; 部分煤种气化多环芳烃的质量分数高于原煤多环芳烃质量分数,且煤气化多环芳烃的种类分为原煤未分解的多环芳烃、热解合成的多环芳烃、自由基高温缩合生成的多环芳烃.
Abstract:
To investigate the distribution and content of polycyclic aromatic hydrocarbons(PAHs)in raw coal and gasified products during coal gasification,the air and steam gasification of coal was tested in an atmospheric fluidized bed gasifier. After Soxhlet extraction and Kuderna-Danish(K-D)concentration, the content of 16 PAHs recommended by United States Environmental Protection Agency(US EPA)in raw coal, slag, bag house coke, cyclone coke and fuel gas, were analyzed by a high performance liquid chromatography(HPLC)coupled with fluorescence and diode-array detection. The experimental results show that the distributions of content and toxicity equivalent quantity(TEQ)of PAHs in raw coal are similar to coal gasification but this compositions and contents are different. The rise of coal rank leads to the decrease of the content and TEQ of PAHs in raw coal and the increase of TEQ during coal gasification, while the content of PAHs emission from coal gasification increases first and then decreases with the increase of coal rank. The total PAHs contents generated in coal gasification of some sorts of coals are higher than in raw coal. The types of PAHs formed in coal gasification include undecomposed PAHs in raw coal, pyrosysthensis PAHs, and radical polymerization PAHs at high temperature.

参考文献/References:

[1] Ocampoa A,Arenasb E,Chejnea F,et al.An experimental study on gasification of Colombian coal in fluidised bed [J].Fuel, 2003,82(2):161-164.
[2] 金保升,周宏仓,仲兆平,等.三种不同中国煤中多环芳烃的分布特征研究 [J].锅炉技术,2001,35(1):1-4.
  Jin Baosheng,Zhou Hongcang,Zhong Zhaoping,et al.Study on distribution of polycyclic aromatic hydrocarbons in three different raw coals in China [J]. Boiler Technology, 2001,35(1):1-4.(in Chinese)
[3] Kurkela E,Stahlberg P.Air gasification of pear,wood and brown coal in a pressurized fluidized-bed reactor.Ⅰ.Carbon conversion,gas yields and tar formation [J].Fuel Processing Technology, 1992,31(1):1-21.
[4] Nader Padban,Ingemar Odenbrand.Polynuclear aromatic hydrocarbons in fly ash from pressurized fluidized bed gasification of fuel blends:a discussion of the contribution of textile to PAHs [J]. Energy & Fuel, 1999,13(5):1067-1073.
[5] Jong W,(¨overU)nal(¨overO),Andries J,et al.Biomass and fossil fuel conversion by pressurised fluidised bed gasification using hot gas ceramic filters as gas cleaning [J]. Biomass & Bioenergy, 2003,25(1):59-83.
[6] Jong W,(¨overU)nal(¨overO),Andries J,et al.Thermochemical conversion of brown coal and biomass in a pressurized fluidized bed gasifier with hot gas filtration using ceramic channel filters:measurements and gasifier modelling [J].Applied Energy, 2003,74(3,4):425-437.
[7] 周宏仓,金保升,仲兆平,等.流化床部分煤气化实验研究 [J].热能动力工程,2004,19(3):252-255.
  Zhou Hongcang,Jin Baosheng,Zhong Zhaoping,et al.Experimental study of coal partial gasification in a fluidized bed [J]. Journal of Engineering for Thermal Energy & Power, 2004,19(3):252-255.(in Chinese)
[8] 周宏仓,金保升,仲兆平,等.管道喷射活性炭脱除焚烧炉烟气中的多环芳烃 [J].中国环境科学,2004,24(2):252-256.
  Zhou Hongcang,Jin Baosheng,Zhong Zhaoping,et al.Removal of polycyclic aromatic hydrocarbons in flue gas from incinerator with in-duct activated carbon injection [J].China Environmental Science, 2004,24(2):252-256.(in Chinese)
[9] 周宏仓,金保升,仲兆平,等.燃煤流化床多环芳烃的研究现状 [J].锅炉技术,2003,34(5):22-26.
  Zhou Hongcang,Jin Baosheng,Zhong Zhaoping,et al.Progress in research on polycyclic aromatic hydrocarbons in coal-fired fluidized bed [J].Boiler Technology, 2003,34(5):22-26.(in Chinese)
[10] Korenaga T,Liu Xiaoxing,Huang Zuyun.The influence of moisture content on polycylic aromatic hydrocarbons emission during rice straw buring [J].Chemosphere-Global Change Science, 2001,3(1):117-122.
[11] Richter H,Howard J B.Formation of polycyclic aromatic hydrocarbons and their growth to soot-a review of chemical reaction pathways [J].Progress in Energy and Combustion Science, 2000,26(4-6):565-608.
[12] 魏贤勇,宗志敏,秦志宏,等.煤液化化学 [M].北京:科学出版社,2002.60-63.

相似文献/References:

[1]张科峰,傅大放,李贺.不同屋面雨水径流中PAHs污染特性对比分析[J].东南大学学报(自然科学版),2012,42(1):99.[doi:10.3969/j.issn.1001-0505.2012.01.019]
 Zhang Kefeng,Fu Dafang,Li He.Comparison and analysis characteristics of PHAs pollution for different types of roof runoff[J].Journal of Southeast University (Natural Science Edition),2012,42(1):99.[doi:10.3969/j.issn.1001-0505.2012.01.019]

备注/Memo

备注/Memo:
基金项目: 国家重点基础研究发展计划(973计划)资助项目(G19990221053)、东南大学振兴行动计划资助项目.
作者简介: 金保升(1961—),男,教授,博士生导师, bsjin@seu.edu.cn.
更新日期/Last Update: 2005-01-20