Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures

As soot particles from incomplete combustion of fossil fuels pose a great threat to human health, the development of low-carbon or zero-carbon alternative fuels is essential to mitigate climate change. An experimental and numerical study on the pyrolysis properties of ammonia and ethylene mixtures i...

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Main Authors: Jiaying He, Yaoyao Ying, Mingxiao Chen, Dong Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-09-01
Series:Frontiers in Energy Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2022.996813/full
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author Jiaying He
Jiaying He
Yaoyao Ying
Yaoyao Ying
Mingxiao Chen
Mingxiao Chen
Dong Liu
Dong Liu
author_facet Jiaying He
Jiaying He
Yaoyao Ying
Yaoyao Ying
Mingxiao Chen
Mingxiao Chen
Dong Liu
Dong Liu
author_sort Jiaying He
collection DOAJ
description As soot particles from incomplete combustion of fossil fuels pose a great threat to human health, the development of low-carbon or zero-carbon alternative fuels is essential to mitigate climate change. An experimental and numerical study on the pyrolysis properties of ammonia and ethylene mixtures is conducted, focusing on the properties of soot generated by pyrolysis under different conditions and the coupling relationship between soot properties and soot precursors. The results show that the graphitization degree of soot particles generated at higher pyrolysis temperatures is enhanced, but the oxidation reactivity is decreased. When ammonia is blended, the graphitization of soot decreases and the oxidation reactivity increases. The peak mole fractions of soot precursors are negatively correlated with the graphitization degree of soot particles as the temperature increases.
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spelling doaj.art-daf1b206010f4342bc569a40f41c1ba82022-12-22T04:30:53ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-09-011010.3389/fenrg.2022.996813996813Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixturesJiaying He0Jiaying He1Yaoyao Ying2Yaoyao Ying3Mingxiao Chen4Mingxiao Chen5Dong Liu6Dong Liu7MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaAdvanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaMIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaAdvanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaMIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaAdvanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaMIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaAdvanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, ChinaAs soot particles from incomplete combustion of fossil fuels pose a great threat to human health, the development of low-carbon or zero-carbon alternative fuels is essential to mitigate climate change. An experimental and numerical study on the pyrolysis properties of ammonia and ethylene mixtures is conducted, focusing on the properties of soot generated by pyrolysis under different conditions and the coupling relationship between soot properties and soot precursors. The results show that the graphitization degree of soot particles generated at higher pyrolysis temperatures is enhanced, but the oxidation reactivity is decreased. When ammonia is blended, the graphitization of soot decreases and the oxidation reactivity increases. The peak mole fractions of soot precursors are negatively correlated with the graphitization degree of soot particles as the temperature increases.https://www.frontiersin.org/articles/10.3389/fenrg.2022.996813/fullammoniasoot particleschemical reaction kineticsgraphitization degreeoxidation reactivitysoot precursors
spellingShingle Jiaying He
Jiaying He
Yaoyao Ying
Yaoyao Ying
Mingxiao Chen
Mingxiao Chen
Dong Liu
Dong Liu
Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures
Frontiers in Energy Research
ammonia
soot particles
chemical reaction kinetics
graphitization degree
oxidation reactivity
soot precursors
title Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures
title_full Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures
title_fullStr Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures
title_full_unstemmed Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures
title_short Soot formation characteristics in hybrid pyrolysis of zero-carbon fuel ammonia and ethylene mixtures
title_sort soot formation characteristics in hybrid pyrolysis of zero carbon fuel ammonia and ethylene mixtures
topic ammonia
soot particles
chemical reaction kinetics
graphitization degree
oxidation reactivity
soot precursors
url https://www.frontiersin.org/articles/10.3389/fenrg.2022.996813/full
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AT yaoyaoying sootformationcharacteristicsinhybridpyrolysisofzerocarbonfuelammoniaandethylenemixtures
AT yaoyaoying sootformationcharacteristicsinhybridpyrolysisofzerocarbonfuelammoniaandethylenemixtures
AT mingxiaochen sootformationcharacteristicsinhybridpyrolysisofzerocarbonfuelammoniaandethylenemixtures
AT mingxiaochen sootformationcharacteristicsinhybridpyrolysisofzerocarbonfuelammoniaandethylenemixtures
AT dongliu sootformationcharacteristicsinhybridpyrolysisofzerocarbonfuelammoniaandethylenemixtures
AT dongliu sootformationcharacteristicsinhybridpyrolysisofzerocarbonfuelammoniaandethylenemixtures