火焰窗炉从干燥生物质中生产生物炭,其甲排放量最小
Gerard Cornelissen1, Erlend Sørmo1, Ruy Korscha Anaya de la Rosa2
1Norwegian Geotechnical Institute (NGI), Oslo, Norway; Faculty of Environmental Sciences and Natural Resources (MINA), University of Life Sciences (NMBU), Ås, Norway.
The Science of the total environment
|August 28, 2023
概括
火焰窗炉可以生产低甲生物炭,如果使用干燥的原料,如树枝和叶子,帮助碳认证. 湿原料导致高甲排放,突出了生物炭生产原料制备的重要性.
科学领域:
- * 农业科学 农业科学
- * 环境科学 环境科学
- * 生物质能源 生物质能源
背景情况:
- * 火焰窗炉是小型农场主使用的热门生物炭技术.
- * 这些炉的高甲排放量以前阻碍了碳认证.
- *生物炭生产需要仔细考虑原料特性和排放.
研究的目的:
- * 用不同的原料含水量量来量化火焰窗炉的甲排放量.
- * 评估原料制备对生物炭生产碳平衡的影响.
- * 评估火焰窗炉生物炭是否适合碳认证.
主要方法:
- * 用干燥 (<15%的湿度) 和湿 (>40%的湿度) 原料 (枝条和叶子) 的火焰幕炉的实验分析.
- *测量甲,气溶和一氧化碳 (CO) 排放量,每公斤生产的生物炭.
- *将排放数据与碳认证的确定的门值进行比较.
主要成果:
- * 干燥原料 (枝条,叶子) 导致甲排放非常低 (0-3.6 g/kg−1 biochar).
- * 湿原料产生了大量的甲排放 (>500克公斤-1生物炭).
- *即使使用干燥原料,也观察到显著的气溶 (21-82 g kg−1 biochar) 和CO (40-118 g kg−1 biochar) 排放.
结论:
- * 干枝和叶子的低技术生物炭不应因甲排放而被取消碳认证的资格.
- *原料的水分含量是决定甲排放的关键因素.
- * 尽量减少二氧化碳和气溶排放可能需要原料优化和合成气体的燃烧后技术.
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