通过酶促两步法制备生物柴油。其性能及特征排放的研究。
Obtention of biodiesel through an enzymatic two-step process. Study of its performance and characteristic emissions.
作者信息
Macías-Alonso Mariana, Hernández-Soto Rosa, Carrera-Rodríguez Marcelino, Salazar-Hernández Carmen, Mendoza-Miranda Juan Manuel, Villegas-Alcaraz José Francisco, Marrero Joaquín González
机构信息
Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato Av. Mineral de Valenciana 200 Col. Fracc. Industrial Puerto Interior Silao 36275 Guanajuato Mexico
出版信息
RSC Adv. 2022 Aug 22;12(36):23747-23753. doi: 10.1039/d2ra03578b. eCollection 2022 Aug 16.
We describe the enzymatic synthesis of biodiesel from waste cooking oil (WCO) in a two-step production process: hydrolysis of WCO, followed by acid-catalyzed esterification of free fatty acids (FFAs). Among the three commercial enzymes evaluated, the inexpensive lipase Lipex® 100L supported on Lewatit® VP OC 1600 produced the best overall biodiesel yield (96.3%). Finally, we assessed the combustion efficiency of the obtained biodiesel and its blends. All blends tested presented lower emissions of CO and HC compared to diesel. The NOx emissions were higher due to biodiesel's high volatility and viscosity. The cost of biodiesel production was calculated using the process described.
我们描述了一种两步法从废食用油（WCO）酶促合成生物柴油的过程：首先是WCO的水解，然后是游离脂肪酸（FFA）的酸催化酯化。在所评估的三种商业酶中，负载在Lewatit® VP OC 1600上的廉价脂肪酶Lipex® 100L产生了最佳的总体生物柴油产率（96.3%）。最后，我们评估了所得生物柴油及其混合物的燃烧效率。与柴油相比，所有测试的混合物的一氧化碳（CO）和碳氢化合物（HC）排放量均较低。由于生物柴油的高挥发性和高粘度，氮氧化物（NOx）排放量较高。使用所述工艺计算了生物柴油的生产成本。
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