The aim of the present paper is to compare the combustion results of two solid biofuels suitable for industrial applications: olive tree pruning (OTP) pellets and sunflower husk (SH) pellets. The former derives from the thin prunings, along with the leaves, whereas the latter derives as a byproduct from the sunflower oil extraction industries. The combustion was performed in operating conditions at two industrial fixed bed biomass boilers (1.16 MW_th capacity each) with a common flue gas stack used for greenhouse heating. Combustion tests were performed at the industrial boiler for two consecutive days. During the first day, the OTP pellets were combusted and monitored for emissions, whereas in the second day the reference fuel that is normally used in the plant (SH pellets) was monitored. While combusting OTP pellets, the boiler’s performance was found to exhibit a slightly worse, leading to a decrease of 3.5% points of the boiler efficiency compared to SH pellets. Lower emissions of CO and NO_x were also observed for OTP pellets, while the ash formation exhibited signs of reduced slagging. Dust emissions were high for both fuels, indicating that particle emission abatement equipment should be installed at the facility.

本文的目的是比较两种适合工业应用的固体生物燃料的燃烧结果：橄榄树修剪（OTP）颗粒和葵花壳（SH）颗粒。前者与叶子一起从薄的修剪中获取，而后者则是从葵花籽油提取工业中获得的副产品。在两个工业固定床生物质锅炉（1.16 MW _th容量），并带有用于温室供暖的普通烟道气。连续两天在工业锅炉上进行燃烧测试。在第一天，对OTP颗粒进行燃烧并监测排放，而在第二天，对工厂中通常使用的参考燃料（SH颗粒）进行监测。燃烧OTP颗粒时，发现锅炉的性能稍差，与SH颗粒相比，锅炉效率降低了3.5％。CO和NO的排放更低_X也为OTP粒料观察到的，而灰的形成表现出降低的造渣的迹象。两种燃料的粉尘排放量都很高，这表明该设施应安装减少颗粒物排放的设备。