The narrow window of energy application for oil extraction by arc discharge
The narrow window of energy application for oil extraction by arc discharge
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电弧放电采油能源应用窗口窄
DOI：
10.1007/s10811-018-1579-y
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发表时间：
2019
影响因子：
3.3
通讯作者：
H. Hosano
中科院分区：
文献类型：
--
作者：
A. Guionet;K. Oura;H. Akiyama;H. Hosano
微藻产油被认为是解决石油短缺的一种可能途径。一些微藻如布朗葡萄藻（Botryococcus braunii）具有能够产生大量碳氢化合物而不需要可耕地生长的优点。Braunii适合于化妆品工业，因为它们是类似于角鲨烯的长链烃。因此，B。brauniioil可能会产生高额利润。然而，从微藻培养物中收获烃是困难的。在这里，我们展示了一种利用高压放电（HPED）从藻类培养物中收集碳氢化合物的创新方法。布朗葡萄球菌形成一个充满碳氢化合物的基质，使许多细胞粘附在一起成为小菌落。当施加的能量过高时，碳氢化合物被破坏;当能量过低时，藻类培养保持不变。但是当能量足够时（接近625 J mL−1），细胞会离开菌落并沉到样品底部，而碳氢化合物则不受影响并漂浮到样品表面。这种现象使我们能够收获没有细胞的菌落基质，适合作为生物燃料生产的生物质。
Oil production by microalgae is investigated as a possible solution to sustain the petroleum shortage. Some microalgae such asBotryococcus brauniihave the advantage of being able to produce a high amount of hydrocarbon without requiring arable lands to grow on. Also, hydrocarbons extracted fromB. brauniiare suitable for the cosmetic industry, as they are long-chain hydrocarbons similar to squalene. As such,B. brauniioil might generate a high profit. However, harvesting hydrocarbon from microalgae cultures is difficult. Here we show an innovative way of collecting hydrocarbon from algae culture using high voltage electric discharges (HVED).Botryococcus brauniiform a matrix full of hydrocarbons allowing many cells to stick together as microcolonies. When the energy applied is too high, hydrocarbons are destroyed; and when the energy is to low, algae culture stays unchanged. But when energy applied is just sufficient (near 625 J mL−1), cells leave colonies and sink to the bottom of the samples, while hydrocarbons remain unaffected and float to the surface of the samples. Such a phenomenon allows us to harvest the matrices of colonies which are empty of cells, suitable as a biomass for biofuel production.