Abstract Nowadays, the use of biomass increasingly replaces the fossil fuels for the domestic heating production. In order to reduce pollutant emissions from biomass combustion, wood was washed at room temperature in order to represent natural rain leaching before burning in a recent pellet stove (2010s) of nominal output of 6.3 kW. Raw and washed woods were combusted for three different types of wood (oak, beech and fir) and the study focused on their particulate and gaseous emissions (Total Suspended Particles (TSP), Particulate Matter with diameter below 2.5 μm (PM 2.5 ), carbon monoxide (CO), nitrogen oxides (NOx) and Total Volatile Organic Compounds (TVOC)). Polycyclic Aromatic Hydrocarbons (PAH), aldehydes and wood tracers as phenols compounds were also measured. In addition, considering the toxic equivalent factor, the human health impact of adsorbed and gaseous PAH is considerably reduced (96%) in the case of washed fir combustion. Emission factors of CO and TSP for washed wood combustion also show a decrease up to 50% depending on the type of wood used. Furthermore, phenolic compounds, Benzene, Toluene, Ethylbenzene, Xylenes and Trimethylbenzene (BTEXT) emissions can also be reduced by the washing of biomass. Washed oak combustion leads to a clear decrease by 60% of the total of BTEXT. In the case of phenols emissions, phenol shows a significant decrease by 91% during the combustion of washed fir wood.

中文翻译：

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木材清洗：对家用颗粒炉中木材燃烧过程中气体和颗粒物排放的影响

摘要 如今，生物质的使用越来越多地取代化石燃料用于家庭供热生产。为了减少生物质燃烧产生的污染物排放，木材在室温下被清洗，以代表自然雨水浸出，然后在最近的标称输出为 6.3 kW 的颗粒炉（2010 年代）中燃烧。对三种不同类型的木材（橡木、山毛榉和冷杉）原木和水洗木进行燃烧，研究重点是它们的颗粒物和气体排放物（总悬浮颗粒物 (TSP)、直径低于 2.5 微米的颗粒物 (PM 2.5)、碳一氧化碳 (CO)、氮氧化物 (NOx) 和总挥发性有机化合物 (TVOC)）。还测量了作为酚类化合物的多环芳烃 (PAH)、醛和木材示踪剂。此外，考虑毒性当量因子，在水洗冷杉燃烧的情况下，吸附和气态 PAH 对人类健康的影响大大降低 (96%)。根据所用木材的类型，用于洗涤木材燃烧的 CO 和 TSP 的排放因子也显示减少高达 50%。此外，还可以通过洗涤生物质来减少酚类化合物、苯、甲苯、乙苯、二甲苯和三甲苯 (BTEXT) 的排放。水洗橡木燃烧导致 BTEXT 总量的 60% 明显减少。在酚类排放的情况下，在洗涤过的冷杉木燃烧过程中，苯酚显着减少了 91%。苯、甲苯、乙苯、二甲苯和三甲苯 (BTEXT) 的排放也可以通过洗涤生物质来减少。水洗橡木燃烧导致 BTEXT 总量的 60% 明显减少。在酚类排放的情况下，在洗涤过的冷杉木燃烧过程中，苯酚显着减少了 91%。苯、甲苯、乙苯、二甲苯和三甲苯 (BTEXT) 的排放也可以通过洗涤生物质来减少。水洗橡木燃烧导致 BTEXT 总量的 60% 明显减少。在酚类排放的情况下，在洗涤过的冷杉木燃烧过程中，苯酚显着减少了 91%。