水洗和KOH激活对提升微藻化生物炭的作用
Congyu Zhang1, Jin Fang1, Wei-Hsin Chen2
1School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
The Science of the total environment
|February 26, 2024
概括
氧化 (KOH) 的激活与化相结合,显著提高了微藻生物炭燃料的性能. 这种方法提供了一种更绿色,更有效的方法,用于升级微藻固体生物燃料以获得更好的性能.
科学领域:
- 生物质能源 生物质能源
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 微藻生物质是可持续固体生物燃料生产的有希望的原料.
- 造是一种用于提升生物质性质的热化学过程.
- 金属激活,例如用氧化 (KOH),可以进一步提高生物燃料的特性.
研究的目的:
- 为了比较单独的烧烤与KOH激活的有效性,与Nannochloropsis Oceanica生物炭生产的烧烤相结合.
- 评估KOH激活对微藻生物炭燃料特性的影响.
- 为了确定生产增强微藻生物炭的最佳操作.
主要方法:
- 微藻 Nannochloropsis Oceanica 曾经经经历过烧结的过程.
- 通过单纯烧烤生产的生物炭和通过KOH激活然后烧烤生产的生物炭进行了比较分析.
- 分析了燃料特性,包括更高的加热值 (HHV),热解和燃烧温度以及元素组成.
主要成果:
- 与未激活的生物炭 (25.024-26.389 MJ·kg-1) 相比,KOH激活的生物炭表现出更高的HHV (25.611-32.792 MJ·kg-1).
- 通过KOH激活的生物炭显示了减少的残留物,更广泛的热解和燃烧温度范围,更高的元素碳含量和更低的组合碳.
- 生命周期评估和费用计算表明,可比成本,但高活性生物炭的性能优越.
结论:
- KOH激活是一种高效的方法,通过化来升级微藻固体生物燃料.
- 联合的KOH激活和化过程产生了具有优越燃料性能的微藻生物炭.
- 这种方法有助于开发更绿色,更有效的生物燃料生产方法和性能提升.
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