棕油酸蒸的两步化过程使用浸泡与超声波相结合:过程优化和可重复使用的固体酸催化剂
Jarernporn Thawornprasert1, Krit Somnuk1
1Department of Mechanical and Mechatronics Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
ACS omega
|January 1, 2025
概括
高强度超声波和Amberlyst-15催化剂有效地将棕油脂酸蒸中的自由脂肪酸转化为甲基. 这种可持续的方法实现了高纯度,证明了生物柴油生产的催化剂可重复使用性.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 可持续化学 可持续化学
- 催化剂是一种催化剂.
背景情况:
- 棕脂肪酸蒸 (PFAD) 是一种富含自由脂肪酸 (FFAs) 的副产品.
- 将FFF转化为甲基 (ME) 对于生物柴油生产至关重要.
- 与同质催化剂相比,异质催化剂提供了环境效益和可重复使用性.
研究的目的:
- 通过超声波和异质酸催化剂,优化PFAD中FFF的化到ME.
- 调查Amberlyst-15在生物柴油生产中的效率和可重复使用性.
- 为了确定最大限度地提高ME纯度的最佳反应条件.
主要方法:
- 高强度超声波 (1000 W,18 kHz) 应用于PFAD的化.
- 在这个过程中使用了一种异质酸催化剂Amberlyst-15.
- 反应参数包括甲醇含量,催化剂负载,浸泡时间和超声波时间,以优化ME纯度而变化.
主要成果:
- 在最佳条件下,ME纯度达到89.44%的重量级.
- 最佳条件:36.73重量%的甲醇,60重量%的Amberlyst-15,浸泡130分钟,在60°C下505秒的超声波.
- 回收的Amberlyst-15至少在两个循环中证明了可重复使用性,达到超过80%的ME纯度.
结论:
- 用Amberlyst-15进行超声波辅助化是一种有效的方法,可以降低PFAD中的FFA含量.
- 不同质的催化剂Amberlyst-15可重复使用,为生物柴油生产提供一种可持续的方法.
- 优化条件显著提高甲基产量和纯度.
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