Yi-zun Wang, Jiu-zhong Yang, Yang Pan, Hao Ma, Yu-yang Li, 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. doi: 10.1063/1674-0068/29/cjcp1604081
Citation: Yi-zun Wang, Jiu-zhong Yang, Yang Pan, Hao Ma, Yu-yang Li, 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. doi: 10.1063/1674-0068/29/cjcp1604081

On-Line Photoionization Mass Spectrometric Study on Behavior of Ammonia Poisoning on H-Form Ultra Stable Y Zeolite for Catalytic Pyrolysis of Polypropylene

doi: 10.1063/1674-0068/29/cjcp1604081
  • Received Date: 2016-04-18
  • Rev Recd Date: 2016-05-27
  • 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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On-Line Photoionization Mass Spectrometric Study on Behavior of Ammonia Poisoning on H-Form Ultra Stable Y Zeolite for Catalytic Pyrolysis of Polypropylene

doi: 10.1063/1674-0068/29/cjcp1604081

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.

Yi-zun Wang, Jiu-zhong Yang, Yang Pan, Hao Ma, Yu-yang Li, 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. doi: 10.1063/1674-0068/29/cjcp1604081
Citation: Yi-zun Wang, Jiu-zhong Yang, Yang Pan, Hao Ma, Yu-yang Li, 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. doi: 10.1063/1674-0068/29/cjcp1604081
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