帮助 关于我们

返回检索结果

生物质热化学转化过程含N污染物形成研究
Formation of Nitrogenous Pollutants during Biomass Thermo-Chemical Conversion

查看参考文献71篇

文摘 生物质热化学转化过程(热解与气化)含N污染物是大气PM_(2.5)的重要成因,研究其形成对大气污染防控具有重要意义。本文综述了国内外关于生物质热解与气化含N污染物形成机理及其影响因素的研究进展。现有研究结果表明: 热解与气化过程含N污染物形成路径相似,但其种类及含量有明显差异,其中,热解主要为NH_3与HCN,气化主要为NH_3。从影响因素上看,燃料N赋存、温度、热解升温速率、气化反应气氛、燃料理化特性及反应添加物对含N污染物均有一定影响。升温速率快、燃料含N高、参与反应水蒸气浓度高等,均会造成含N污染物的增加,温度对两过程含N污染物的影响规律具有相似性,高温有利于降低其含量。从含N污染物三相分布特征来看,主要以气相形式存在,热解基本在50% 左右,气化可高达90%,因此,控制并降低气相含N污染物形成是生物质热化学转化过程减少污染的重要方向。同时,本文基于研究结论的对比,指出国内外目前研究现状的不足。
其他语种文摘 To investigate the formation of nitrogenous pollutants (NPs) during biomass thermo-chemical conversion (pyrolysis and gasification) is significant for the control of air pollution as these NPs are an important factor for the formation of PM_(2.5). Research progress on the formation mechanism and influence factors of NPs during two processes are reviewed. Consistent conclusions from the literature can be summarized as follows: 1) NPs formed from two processes resemble in their formation paths but differ in their types & components. Either NH_3 or HCN is confirmed to be main NPs for pyrolysis while NH_3 is dominant for gasification. 2) Comparing the influence factors,it is demonstrated that the increase of any factor such as the heating rate,the content of fuel nitrogen and the concentration of steam involved will enhance the formation of NPs for two processes. Meanwhile,the effect of temperature on the selectivity of NPs towards two processes are similar as well as higher temperature is inclined to decrease the amount of NPs. 3) Comparing the results of nitrogen distribution,it is found that the percentage of NPs in gaseous phase are approximately 50% for pyrolysis and as much as 90% for gasification. Therefore,to control the formation of NPs in gaseous phase is effective to reduce the pollutants during biomass thermo-chemical conversion. Meanwhile, based on the current conclusions obtained, the deficiencies of formation mechanism are summarized as well as the prospective developments are proposed for further research.
来源 化学进展 ,2016,28(12):1880-1890 【核心库】
DOI 10.7536/pc160438
关键词 含N污染物 ; 热解 ; 气化 ; 形成机理 ; NH_3 ; HCN ; 影响因素
地址

中国科学院广州能源研究所, 中国科学院可再生能源重点实验室;;广东省新能源和可再生能源重点实验室, 广州, 510640

语种 中文
文献类型 综述型
ISSN 1005-281X
学科 能源与动力工程
基金 国家自然科学基金项目
文献收藏号 CSCD:5910451

参考文献 共 71 共4页

1.  Smeets E M W. Prog. Energy Combust. Sci,2007,33(1):56 被引 6    
2.  McKendry P. Bioresour. Technol,2002,83(1):47 被引 57    
3.  Balat M. Energy Sources Part A-Recovery Util. Environ. Eff,2008,30(7):620 被引 8    
4.  Balat M. Energy Sources Part A-Recovery Util. Environ. Eff,2008,30(7):636 被引 2    
5.  Winter F. Bioresour. Technol,1999,70(1):39 被引 18    
6.  Huang R J. Nature,2014,514(7521):218 被引 526    
7.  Cao J J. J. Air Waste Manage. Assoc,2012,62(10):1214 被引 88    
8.  Liu H. Fuel,2003,82(13):1591 被引 6    
9.  Vermeulen I. Fuel,2012,94(1):75 被引 6    
10.  Rogaume T. Int. J. Therm. Sci,2006,45(4):359 被引 5    
11.  Abelha P. Energy Fuels,2008,22(1):363 被引 4    
12.  Yu Q Z. Fuel,2007,86(40):611 被引 4    
13.  Hansson K M. Fuel,2003,82(18):2163 被引 33    
14.  Zhou J Q. J. Fuel Chem. Techno,2015,43(12):1427 被引 4    
15.  Hansson K M. Combust. Flame,2004,137(3):265 被引 41    
16.  Li J. Thermochim. Acta,2008,467(1/2):20 被引 7    
17.  Li J. J. Anal. Appl. Pyrolysis,2007,80(1):247 被引 15    
18.  Hao J F. J. Therm. Anal. Calorim,2014,115(1):667 被引 5    
19.  Tian K. Environ. Sci. Technol,2014,48(18):10888 被引 16    
20.  Becidan M. Energy Fuels,2007,21(2):1173 被引 17    
引证文献 10

1 詹昊 抗生素菌渣热解N官能团变化特征及其与NO_x前驱物关系研究 燃料化学学报(中英文),2017,45(10):1219-1229
被引 5

2 周建强 生物质热解过程中含氮模型化合物研究进展 环境污染与防治,2019,41(1):110-117
被引 2

显示所有10篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号