Enhancement of Synthesis-Gas Fermentations Using MicrobubbleDispersions

主要研究者（PI） 建议研究气体传质 从微气泡中。 微泡， 也称为胶体气体泡沫， 是表面稳定的气泡 直径约50微米， 使用旋转盘形成 设备. 的预测模型 微泡传质和 将开发聚结， 气体传质速率， 气泡聚结是 对一系列表面活性剂进行测量 类型 微泡的应用 合成气分散液 发酵也需要研究。 发酵生产率， 常规的气体喷射和 微泡喷射将是 比较了 这些生产力 目前发酵有限 缓慢的气体质量 转移

The Principal Investigator (PI) proposes to study gas mass transfer from microbubbles. Microbubbles, also known as colloidal gas aphrons, are surfactant-stabilized bubbles about 50 microns in diameter that are formed using a spinning-disk apparatus. Predictive models of microbubble mass transfer and coalescence are to be developed, and rates of gas mass transfer and bubble coalescence are to be measured for a range of surfactant types. The utility of microbubble dispersions for synthesis-gas fermentations is also to be studied. Fermentation productivities using conventional gas sparging and microbubble sparging will be compared. Productivities of these fermentations is currently limited by the slow rate of gas mass transfer.