Lee Taewoo, Jung Sungyup, Lin Kun-Yi Andrew, Tsang Yiu Fai, Kwon Eilhann E
Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea.
Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture & Research Center of Sustainable Energy and Nanotechnology, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan.
J Hazard Mater. 2021 Jan 5;401:123416. doi: 10.1016/j.jhazmat.2020.123416. Epub 2020 Jul 7.
Global consumption of tobacco has been continuously increasing. This results in the considerable generation of toxic waste materials from the tobacco industry and daily life. Conventional disposal methods for them (incineration and landfilling) could be a potential hazard for releasing carcinogens and toxins into our eco-system. Accordingly, an eco-friendly disposal platform for converting tobacco waste (TW) into syngas was mainly studied in this present work. To realize this, pyrolysis of two commercial cigarette products (Marlboro and HEETS (electronic cigarette)) was done under the CO/N conditions. One of the main findings from the present study was that CO reacted with volatile matters (VMs) obtained from the thermolysis of TW through the gas phase reactions (GPRs), which provided a strategic measure to manipulate carbon rearrangement of all pyrolysates. In particular, the GPRs expedited the carbon rearrangement of harmful chemical species, converting toxic chemicals into syngas. When the fraction of VMs in TWs increased, the GPR were more effective. Therefore, the introduced eco-friendly method using CO-mediated thermochemical process could be beneficial for energy recovery from TWs while mitigating the formations of harmful chemical species.
全球烟草消费量一直在持续增长。这导致烟草行业和日常生活中产生大量有毒废料。对这些废料的传统处理方法（焚烧和填埋）可能会将致癌物和毒素释放到我们的生态系统中，从而构成潜在危害。因此，本研究主要探讨了一个将烟草废料（TW）转化为合成气的环保处理平台。为实现这一目标，在CO/N条件下对两种商业卷烟产品（万宝路和HEETS（电子烟））进行了热解。本研究的主要发现之一是，CO通过气相反应（GPR）与烟草废料热解产生的挥发性物质（VMs）发生反应，这为控制所有热解产物的碳重排提供了一项战略措施。特别是，气相反应加速了有害化学物质的碳重排，将有毒化学物质转化为合成气。当烟草废料中挥发性物质的比例增加时，气相反应更有效。因此，引入的利用CO介导的热化学过程的环保方法，在减轻有害化学物质形成的同时，可能有利于从烟草废料中回收能量。
