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首页> 外文期刊>Journal of Cleaner Production >Prediction of gaseous products from refuse derived fuel pyrolysis using chemical modelling software - Ansys Chemkin-Pro
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Prediction of gaseous products from refuse derived fuel pyrolysis using chemical modelling software - Ansys Chemkin-Pro

机译：使用化学建模软件从垃圾衍生燃料热解中预测气态产物-Ansys Chemkin-Pro

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There can be observed global interest in waste pyrolysis technology due to low costs and availability of raw materials. At the same time, there is a literature gap in forecasting environmental effects of thermal waste treatment installations. In the article was modelled the chemical composition of pyrolysis gas with main focus on the problem in terms of environmental hazards. Not only RDF fuel was analysed, but also selected waste fractions included in its composition. This approach provided comprehensive knowledge about the chemical composition of gaseous pyrolysis products, which is important from the point of view of the heterogeneity of RDF fuel. The main goal of this article was to focus on the utilitarian aspect of the obtained calculation results. Final results can be the basis for estimating ecological effects, both for existing and newly designed installations.Pyrolysis process was modelled using Ansys Chemkin-Pro software. The investigation of the process were carried out for five different temperatures (700, 750, 800, 850 and 900 degrees C). As an output the mole fraction of H-2, H2O, CH4, C2H2,C2H4, C3H6, C3H8, CO, CO2, HCl and H2S were presented. Additionally the reaction pathways for selected material were presented.Based on obtained results, it was established that the residence time did not influenced on the concentration of products, contrary to temperature. The chemical composition of pyrolytic gas is closely related to wastes origin. The application of Chemkin-Pro allowed the calculation of formation for each products at different temperatures and formulation of hypotheses on the reaction pathways involved during pyrolysis process. Further, based on the obtained results confirmed the possibilities of using pyrolysis gas from RDF as a substitute for natural gas in energy consumption sectors. Optimization of the process can be conducted with low financial outlays and reliable results by using calculation tools. Moreover it can be predicted negative impact of obtained products on the future installation. (c) 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
机译：由于低成本和原材料的可获得性，已观察到全球对废物热解技术的兴趣。同时，在预测热废物处理装置的环境影响方面存在文献差距。在本文中，对热解气体的化学成分进行了建模，主要针对环境危害方面的问题。不仅分析了RDF燃料，还分析了其成分中包括的选定废物部分。这种方法提供了有关气态热解产物化学成分的全面知识，这对于RDF燃料的非均质性而言非常重要。本文的主要目标是着重于获得的计算结果的功利性方面。最终结果可以作为估算现有和新设计装置的生态影响的基础。使用Ansys Chemkin-Pro软件对热解过程进行建模。在五个不同的温度（700、750、800、850和900摄氏度）下对工艺进行了研究。作为输出，给出了H-2，H2O，CH4，C2H2，C2H4，C3H6，C3H8，CO，CO2，HCl和H2S的摩尔分数。此外，还给出了所选材料的反应途径。根据获得的结果，确定了停留时间不影响产物的浓度，与温度相反。热解气体的化学成分与废物的来源密切相关。 Chemkin-Pro的应用可以计算每种产物在不同温度下的生成量，并在热解过程中涉及的反应路径上提出假设。此外，基于获得的结果，证实了在能源消耗领域中使用RDF的热解气替代天然气的可能性。通过使用计算工具，可以在较低的财务支出和可靠的结果下进行工艺优化。此外，可以预见所获得产品对未来安装的负面影响。 （c）2019作者。由Elsevier Ltd.发布。这是CC BY许可下的开放访问文章（http://creativecommons.org/licenses/by/4.0/）。

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