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浙江大学学报(工学版)
浙江大学学报(工学版)
化学工程     
负钛铜基载氧体在煤化学链燃烧中多环芳烃的生成
李媛1, 尹雪峰1, 张志磊2
1.内蒙古大学 环境与资源学院,内蒙古 呼和浩特 010021；2.包头市机动车排气检测管理中心,内蒙古 包头 014060
Polycyclic aromatic hydrocarbons formation in coal chemical looping combustion of Cu based oxygen carriers supported titanium
LI Yuan1, YIN Xue feng1, ZHANG Zhi lei2
1.College of Environment and Resources, Inner Mongolia University, Hohhot 010021, China；2. Vehicle exhaust testing and Management Center of Baotou, Baotou 014060, China
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摘要：

为了控制煤化学链燃烧中多环芳烃(PAHs)的生成,改善载氧体在多次循环后的碳沉积现象,以TiO2为惰性组分,采用机械混合法制备铜基载氧体(CuO/TiO2),研究该载氧体在模拟化学链燃烧燃料反应器中PAHs的生成情况,探究煤化学链燃烧中PAHs的排放特性和机理.实验采用气相色谱仪对PAHs做定性定量分析,结果表明：化学链燃烧生成的三环芳烃总量最多；对于煤化学链燃烧适合的燃料为低挥发性、高n(H)∶n(C)摩尔比的燃料；添加适量分散剂可改善制作载氧体时的结块现象,提高化学链燃烧法（CLC）反应效率,使PAHs排放总量减少，有效抑制碳沉积；PAHs生成总量随反应温度的升高先增加后减少,高温区(800～1 000 ℃)适合CuO/TiO2载氧体进行化学链燃烧反应.
Abstract:

The formation of polycyclic aromatic hydrocarbons (PAHs) was investigated in a simulated CLC fuel reactor, and the emission characteristics and mechanism of PAHs was discussed to control the formation of PAHs in coal chemical looping combustion (CLC) and improve carbon deposition problem of oxygen carriers after multiple cycles. the mechanical mixing method to prepare Cu based oxygen carrier (CuO/TiO2) was adopted, by taking TiO2 as inert component.
Gas chromatography was employed for qualitative and quantitative analysis for PAHs. The results shows that the 3 ring PAHs is predominant in the CLC process. The fuel of low volatility and high n(H)∶n(C) ratio is suitable for coal chemical looping combustion, and the deliberate addition of dispersant can improve the problem of oxygen carrier agglomeration and retrain carbon deposition. by increasing the reaction efficiency and decreasing the emission of PAHs. The total amount of PAHs formation increases first and then decreases with the temperature increasing, and the high temperature zone of 800 to 1 000 ℃ is suitable for the CLC reaction with CuO/TiO2 oxygen carriers.
出版日期: 2016-02-01
:  TK 546  
基金资助:

 国家自然科学基金资助项目（21107040）；科技部“农业科技成果转化资金重点资助项目”（2014GB2A400088）.
通讯作者: 尹雪峰,男,副教授.ORCID: 0000 0002 1667 5040.     E-mail: yin.yxf@gmail.com
作者简介: 李媛（1987—）,女,硕士生,从事煤化学链燃烧有机污染物生成等方面的研究.ORCID: 0000 0001 8197 8462.E-mail: 1023liyuan@163.com
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引用本文:

李媛, 尹雪峰, 张志磊. 负钛铜基载氧体在煤化学链燃烧中多环芳烃的生成[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.02.023.

LI Yuan, YIN Xue feng, ZHANG Zhi lei. Polycyclic aromatic hydrocarbons formation in coal chemical looping combustion of Cu based oxygen carriers supported titanium. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.02.023.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.02.023    或    http://www.zjujournals.com/eng/CN/Y2016/V50/I2/360

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