| 在线光电离质谱方法研究HUSY选择性中毒对聚丙烯催化热解行为的影响 |
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| 引用本文： | 王轶尊,杨玖重,潘洋,马昊,李玉阳,齐飞.在线光电离质谱方法研究HUSY选择性中毒对聚丙烯催化热解行为的影响[J].化学物理学报,2016,29(6):681-686. |
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| 作者姓名： | 王轶尊 杨玖重 潘洋 马昊 李玉阳 齐飞 |
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| 作者单位： | 中国科学技术大学火灾科学国家重点实验室, 合肥 230029,中国科学技术大学国家同步辐射实验室, 合肥 230026,中国科学技术大学国家同步辐射实验室, 合肥 230026,上海交通大学机械与动力工程学院, 上海 200240,上海交通大学机械与动力工程学院, 上海 200240,上海交通大学机械与动力工程学院, 上海 200240 |
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| 摘 要： | 利用热解-光电离飞行时间质谱方法，在线研究了不同酸性强度的HUSY沸石催化剂对聚丙烯（PP）催化热解的影响.将HUSY以不同程度的氨气毒化处理，得到不同酸强度和酸位点数量的催化剂，在线获得PP与酸性强度不同HUSY在不同热解温度下的光电离质谱图，通过程序升温热解实验，获得PP与酸性强度不同的HUSY经热解后产物随温度升高的变化趋势.结果表明PP热解产物的生成温度、选择性和转化率均与HUSY的酸性有较强关联.
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| 关 键 词： | HUSY沸石 聚丙烯 催化热解 氨毒化 光电离质谱 |
| 收稿时间： | 2016/4/18 0:00:00 |
| 修稿时间： | 2016/5/27 0:00:00 |
On-Line Photoionization Mass Spectrometric Study on Behavior of Ammonia Poisoning on H-Form Ultra Stable Y Zeolite for Catalytic Pyrolysis of Polypropylene |
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| Yi-zun Wang,Jiu-zhong Yang,Yang Pan,Hao M,Yu-yang Li and Fei Qi.On-Line Photoionization Mass Spectrometric Study on Behavior of Ammonia Poisoning on H-Form Ultra Stable Y Zeolite for Catalytic Pyrolysis of Polypropylene[J].Chinese Journal of Chemical Physics,2016,29(6):681-686. |
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| Authors: | Yi-zun Wang Jiu-zhong Yang Yang Pan Hao M Yu-yang Li and Fei Qi |
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| Institution: | State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China,National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China,National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China,Key Laboratory for Power Machinery and Engineering of Education, Shanghai Jiao Tong University, Shanghai 200240, China,Key Laboratory for Power Machinery and Engineering of Education, Shanghai Jiao Tong University, Shanghai 200240, China and Key Laboratory for Power Machinery and Engineering of Education, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | In this work, pyrolysis photoionization time-of-flight mass spectrometry (Py-PI-TOFMS) was applied to study the behavior of ammonia poisoning on H-form ultra stable Y (HUSY) zeolite for the catalytic pyrolysis of polypropylene (PP). Firstly, ammonia poisoning on HUSY was performed to obtain the suitable catalysts with different strength and amounts of acid sites. Secondly, online photoionization mass spectra for the pyrolysis products of PP and HUSY with various acid strength were recorded at different pyrolysis temperatures. Finally, the formation curves of various pyrolysates of PP/HUSY with the increase of temperature were determined. Our results indicate that the formation temperatures, yields and selectivity of the pyrolysis products of PP demonstrate obvious relationship with the acid strength of HUSY. |
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| Keywords: | H-form ultra stable Y zeolite zeolites Polypropylene Catalytic pyrolysis Ammonia poisoning Photoionization mass spectrometry |
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