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应用堆肥生物炭用于气体吸附 - - 热解条件的影响

Sylwia Stegenta-Dąbrowska¹, Marta Galik¹, Magdalena Bednik-Dudek²

¹Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego Street 37a, 51-630 Wrocław, Poland.

Molecules (Basel, Switzerland)

|August 28, 2025

概括

由堆肥制成的生物炭有效吸收二氧化碳 (CO2),甲 (CH4) 和硫化 (H2S) 等堆肥排放物. 最佳的热解温度增强了气体吸附,使其适合减排而不是生物气体净化.

科学领域:

环境科学
材料科学
化学工程

背景情况:

肥料质量标准并不总是达到,导致环境问题.
从堆肥中生产生物炭为废物利用和环境修复提供了潜在的解决方案.

研究的目的:

调查成熟的堆肥作为生物炭生产的原料.
评估堆肥衍生生物炭对模拟堆肥排放的气体吸附性质.

主要方法:

在50°C间隔的400-650°C温度下进行堆肥热解.
使用10°C,15°C或20°C的加热速率,持续60分钟.
由此产生的生物炭进行了CO2,CO,H2S,NH3和CH4吸附测试.

主要成果:

热解温度显著影响生物炭吸附特性.
在550-650°C (10°C·min-1) 产生的生物炭显示高降低CO2 (69%),CH4 (69%) 和H2S (72%).
较低的温度 (400-450°C) 增强了一氧化碳 (CO) 的吸附,而氨 (NH3) 的吸附通常较低.

结论:

堆肥生物炭具有吸附关键堆肥排放的巨大潜力,特别是CO2,CH4和H2S.
特定的吸附特性使得堆肥生物炭更适合用于减轻堆肥排放,而不是用于生物气净化.

关键词:

生物炭一氧化碳堆肥利用情况堆肥价值化气体吸附气体净化温室气体热解

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