Abstract Large amounts of agricultural residues are produced annually in the UK alone, which presents a significant biomass energy resource. It has limited availability in briquetted form in the UK but is widely used, particularly in Asia. The aim of this work is to assess the emission from briquetted agricultural residues to wood fuel, including commercial wood briquettes, when utilised in a 5 kW domestic heating stove. Other straw-type materials, sugarcane bagasse, Miscanthus, were also investigated. The combustion behaviour depended on the chemical and physical nature of the briquettes. Results indicate that fuel choice is an important consideration for emission reduction. Fuel-N directly correlates to emitted NOx and all the fuels studied had NOx emissions below the EU regulation limit. While agricultural residues can be relatively high in Cl and S, there is evidence of in-situ capture of HCl and SO2 by calcium salts in the fuel ash. Particulate emissions correlate with the volatile matter in the fuel, but also are influenced by the quality/durability of the briquette. The briquettes performed well compared to wood logs, and while there is a fuel-type influence on emissions, it is also clear that briquettes from optimised manufacture can be lower emitting than wood logs.

中文翻译：

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使用农业残留物、木块和原木进行小规模家庭取暖

摘要 仅在英国，每年就会产生大量的农业残留物，这是一种重要的生物质能源。它在英国的压块形式有限，但被广泛使用，特别是在亚洲。这项工作的目的是评估在 5 kW 家用加热炉中使用时从压块的农业残留物到木材燃料（包括商业木材压块）的排放。其他秸秆类材料甘蔗渣、芒草也进行了研究。燃烧行为取决于团块的化学和物理性质。结果表明，燃料选择是减排的重要考虑因素。燃料氮与排放的 NOx 直接相关，所有研究的燃料的 NOx 排放量都低于欧盟法规限制。虽然农业残留物的 Cl 和 S 含量可能相对较高，但有证据表明燃料灰中的钙盐可以原位捕获 HCl 和 SO2。颗粒排放与燃料中的挥发性物质相关，但也受煤球质量/耐用性的影响。与原木相比，煤球表现良好，虽然燃料类型对排放有影响，但很明显，优化制造的煤球比原木排放量更低。