The aim of this work is to utilize various biogenic fuels without ash slagging and to significantly reduce NO_X and particulate matter emissions in comparison to modern combustion technologies. For this purpose, a novel small-scale multi-fuel biomass grate furnace technology was developed and experimentally investigated. It employs a low oxygen concentration in the fixed-bed and a double air staging, including the supply of flue gas recirculation. In this way slagging is prevented on the grate, reducing the release of ash-forming volatiles, NO_X emissions are minimized in the reduction zone and an efficient flue gas burnout is achieved in the tertiary zone. Wood pellets and chips as well as miscanthus briquettes were investigated.

The measured total particle emissions showed a reduction of 68% for pellets and 70% for wood chips compared to typical small-scale furnaces. Furthermore, a reduction of NO_X emissions of 39% for wood chips, 40% for wood pellets and 45% for miscanthus briquettes was achieved compared to typical small-scale furnaces. The experimental parameter study provided fundamental insights into the various mechanisms involved in this novel technology, which is close to market introduction, and proved its high fuel flexibility and great potential for particulate matter and NO_X emission reduction.

与现代燃烧技术相比，这项工作的目的是利用各种生物燃料而不产生灰渣，并显着减少NO _X和颗粒物的排放。为此，开发了一种新型的小型多燃料生物质炉排炉技术并进行了实验研究。它在固定床中采用了低氧气浓度，并进行了两次空气分级，包括烟气再循环。以这种方式造渣防止在炉篦，减少形成灰分挥发物的释放，NO _X排放物最小化在还原区和一个有效的烟道气燃尽在第三区来实现的。研究了木屑颗粒和木屑以及桔梗团块。

与典型的小型熔炉相比，测得的总颗粒排放量表明，颗粒物减少了68％，木屑减少了70％。此外，NO的还原_X为木屑的39％的排放，木屑颗粒为芒草压块40％和45％进行比较典型的小规模炉实现。实验参数研究提供了对该新技术涉及的各种机理的基本见解，已接近市场推出，并证明了其高燃料灵活性和巨大的潜力，可用于减少颗粒物和减少NO _X排放。