Liu Yujia, Zhong Biqi, Lawal Adeniyi
School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China.
New Jersey Center for MicroChemical Systems, Department of Chemical Engineering and Materials Science, Stevens Institute of Technology Castle Point on Hudson Hoboken NJ 07030 USA
RSC Adv. 2022 Sep 30;12(43):27997-28008. doi: 10.1039/d2ra05090k. eCollection 2022 Sep 28.
Biodiesel production has increased significantly in the past decade because it has been demonstrated to be a viable alternative and renewable fuel. Consequently, the production of crude glycerol, the main byproduct of the transesterification of lipids to biodiesel, has risen as well. Therefore, the effective recovery and utilization of crude glycerol can provide biodiesel with additional value. In this review, we first summarized the state-of-the-art progress on crude glycerol recovery and purification. Subsequently, numerous approaches have been reviewed for the utilization of crude glycerol, including use as animal feeds, for combustion, anaerobic fermentation, and chemical conversion. Finally, an extensive discussion and outlook is presented in relation to the techniques and processes in the chemical conversion of crude glycerol.
在过去十年中，生物柴油产量显著增加，因为它已被证明是一种可行的替代和可再生燃料。因此，粗甘油（脂质转化为生物柴油的酯交换反应的主要副产物）的产量也有所上升。因此，粗甘油的有效回收和利用可为生物柴油提供附加价值。在本综述中，我们首先总结了粗甘油回收和纯化的最新进展。随后，我们综述了多种粗甘油利用方法，包括用作动物饲料、燃烧、厌氧发酵和化学转化。最后，针对粗甘油化学转化的技术和工艺进行了广泛讨论并展望未来。
