引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 664次   下载 526 本文二维码信息
码上扫一扫!
分享到: 微信 更多
On-Line Photoionization Mass Spectrometric Study on Behavior of Ammonia Poisoning on H-Form Ultra Stable Y Zeolite for Catalytic Pyrolysis of Polypropylene
Yi-zun Wang,Jiu-zhong Yang,Yang Pan,Hao Ma,Yu-yang Li,Fei Qi
Author NameAffiliationE-mail
Yi-zun Wang State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China  
Jiu-zhong Yang National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China  
Yang Pan National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China panyang@ustc.edu.cn 
Hao Ma Key Laboratory for Power Machinery and Engineering of Education, Shanghai Jiao Tong University, Shanghai 200240, China  
Yu-yang Li Key Laboratory for Power Machinery and Engineering of Education, Shanghai Jiao Tong University, Shanghai 200240, China  
Fei Qi Key Laboratory for Power Machinery and Engineering of Education, Shanghai Jiao Tong University, Shanghai 200240, China fqi@sjtu.edu.cn 
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.
Key words:  H-form ultra stable Y zeolite zeolites  Polypropylene  Catalytic pyrolysis  Ammonia poisoning  Photoionization mass spectrometry
FundProject:
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
王轶尊,杨玖重,潘洋,马昊,李玉阳,齐飞
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.
关键词:  HUSY沸石  聚丙烯  催化热解  氨毒化  光电离质谱
DOI:10.1063/1674-0068/29/cjcp1604081
分类号: