University of Belgrade Faculty of Agriculture, Belgrade, Serbia.
Institute of Soil Science, Belgrade, Serbia.
Arh Hig Rada Toksikol. 2023 Apr 4;74(1):61-68. doi: 10.2478/aiht-2023-74-3630. Print 2023 Mar 1.
As a tobacco producer, Serbia has to deal with large amounts of leftover tobacco stalks after harvesting. One option for this type of biomass is to burn it, but burning is not encouraged in Serbia, since the levels of its combustion products have not been investigated yet. The aim of this study was therefore to determine the elemental composition, ash and nicotine content, heat values, and composition of gaseous combustion products of tobacco stalk briquettes and to see if their mixing with other types of biomass available in Serbia could improve their ecological profile. We made 11 different types of briquettes: six of pure raw materials, including burley tobacco stalks, sunflower head remains, wheat straw, corncob, soy straw, and beech sawdust and five by mixing tobacco stalks with these other raw materials in a 50:50 mass ratio. All briquettes meet the ecological criteria regarding the emission limits for nitrogen oxides (NO), sulphur dioxide, carbon monoxide, and carbon dioxide. Nicotine content in flue gases (<10 mg/kg) is far below the maximum level allowed by the European Union. Heat values of all biomass samples are acceptable, although lower than those specified for solid biofuels (≥16.0 MJ/kg), save for corncob and beech sawdust and their mixtures with tobacco stalks. Our findings therefore encourage the use of tobacco stalks as a viable biofuel.
作为烟草生产国，塞尔维亚在收获后需要处理大量剩余的烟梗。这种生物质的一种处理方式是燃烧，但塞尔维亚不鼓励燃烧，因为其燃烧产物的水平尚未得到调查。因此，本研究的目的是确定烟草梗压块的元素组成、灰分和尼古丁含量、热值以及气态燃烧产物的组成，并观察它们与塞尔维亚可用的其他类型生物质混合是否可以改善其生态特征。我们制作了 11 种不同类型的压块：六种纯原料，包括白肋烟梗、葵花头残余物、麦秆、玉米芯、大豆秸秆和山毛榉木屑，以及五种将烟草梗与这些其他原料以 50:50 的质量比混合而成的压块。所有压块都符合关于氮氧化物 (NO)、二氧化硫、一氧化碳和二氧化碳排放限制的生态标准。烟道气中的尼古丁含量（<10mg/kg）远低于欧盟允许的最高水平。所有生物质样本的热值都是可以接受的，尽管低于固体生物燃料规定的水平（≥16.0MJ/kg），除了玉米芯和山毛榉木屑及其与烟草梗的混合物。因此，我们的研究结果鼓励将烟草梗用作可行的生物燃料。
