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通过静态混合器反应堆增强脂肪酸甲基的糖解

Pakamas Chetpattananondh¹, Athcharaporn Tabtimmuang¹, Kulchanat Prasertsit¹

¹Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.

|September 30, 2024

概括

一个新的静态混合反应器 (SMR) 从甘油和脂肪酸甲基中有效合成单甘油和二甘油. 优化条件产生了高产品度,性能优于传统反应堆.

科学领域:

化学工程是化学工程的重要组成部分.
反应工程的反应工程.
过程强化过程强化

背景情况:

单甘油 (MGs) 和二甘油 (DGs) 是食品和制药行业中使用的有价值的乳化剂.
甘 (G) 和脂肪酸甲基 (FAME) 的甘溶解是关键的生产方法,但通常需要高效的反应器设计.
传统反应器在精确控制和混合效率方面面临着挑战.

研究的目的:

通过使用新型静态混合反应器 (SMR) 研究MGs和DGs的合成.
为了优化糖溶解参数,包括反应剂比率,催化剂度和反应时间.
将SMR性能与传统反应堆类型进行比较.

主要方法:

使用静态混合器反应器 (SMR) 的甘油分解反应,集成肯尼克斯静态混合器 (KSM) 和低压滴静态混合器 (LPDSM),其L/D比为1.0和1.5.
系统地探索反应参数:G:FAME摩尔比率 (2:1-3:1),氧化物 (KOH) 催化剂 (2-3重量%),以及在150°C的反应时间 (30-90分钟).
使用面中心中心复合材料设计进行优化,并与水箱和超声波反应器进行比较.

主要成果:

在最佳条件下 (3:1 G:FAME,3 wt% KOH,60 分钟,150 °C) 使用 LPDSM (L/D=1.5) 产生了71.35%的MGs和14.20%的DGs.
在相同的条件下,L/D=1的LPDSM在相同的条件下实现了更高的MG (79.28%),但更低的DG (10.17%).
应用在原始甘油上产生了61.09%的MGs和23.44%的DGs.
较低的L/D比提高了混合,但增加了压力下降.

结论:

该SMR提供精确的反应时间控制和高效的混合糖解.
使用L/D=1.5的LPDSM是最大限度地利用MG和DG的最佳方法.
SMR表现出卓越的性能,这表明工业糖溶解应用的巨大潜力.

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