Green Energy and Environmental Laboratory, Industrial Technology Research Institute, Taiwan, ROC.
Green Energy and Environmental Laboratory, Industrial Technology Research Institute, Taiwan, ROC.
Bioresour Technol. 2013 Oct;146:23-26. doi: 10.1016/j.biortech.2013.07.017. Epub 2013 Jul 12.
Sequestering carbon, purifying water, and creating biofuel materials using microalgae are of global interest in the R&D field. However, extracting algal oil consumes a high amount of energy, which is an obstacle for the biofuel market. Nontoxic and recyclable high-pressure CO2 extraction processes are being developed by numerous researchers; however, most of these processes use batch operations mixed with a large amount of co-solvent and require improvement. We fabricated a continuous high-pressure CO2 extraction system, evaluating the optimal parameters for the extraction process. The various parameter tests included temperature, pressure, pretreatment methods, ratio, and the species of co-solvent. We integrated the optimal parameters from previous tests, using a 5-d continuous operation. Compared with traditional solvent extraction, a 90.56% extraction yield ratio was achieved using this continuous extraction method. This shows the stable, high extraction yields of this continuous high-pressure CO2 extraction system.
利用微藻固碳、净化水和生产生物燃料材料是研发领域的全球关注焦点。然而，提取藻类油需要消耗大量的能量，这是生物燃料市场的一个障碍。许多研究人员正在开发无毒且可回收的高压 CO2 提取工艺；然而，这些工艺大多采用分批操作，混合大量共溶剂，需要改进。我们制造了一种连续高压 CO2 提取系统，评估了提取工艺的最佳参数。各种参数测试包括温度、压力、预处理方法、比例和共溶剂的种类。我们整合了之前测试的最佳参数，使用 5 天的连续运行。与传统溶剂萃取相比，采用连续萃取方法可获得 90.56%的萃取收率。这表明该连续高压 CO2 萃取系统具有稳定、高的萃取收率。
