A recently developed measurement method has been applied for the first time to the characterization of a bubble column operated in the heterogeneous regime and in presence of non‐Newtonian fluids. The resulting measurements of bubble size are completed with local gas holdup and global mass transfer characterizations. A strong impact of rheology on both bubble size and mass transfer is observed, at any tested superficial gas velocity. A dissociation of the liquid side mass transfer k_L and the specific interfacial area (a) is proposed. Results show that the k_L model previously validated in stirred tanks filled with complex fluids is satisfyingly extended to bubble columns. The incoming databank will be of great help to develop and validate multiphase hydrodynamic models, especially in the scope of biotechnology and associated systems of complex rheology.

中文翻译：

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流变学对在非均相条件下运行的鼓泡塔中传质和气泡大小的影响

最近开发的一种测量方法首次用于表征在非均相状态和非牛顿流体存在下运行的鼓泡塔的特性。气泡尺寸的测量结果通过局部气体滞留率和整体传质特性完成。在任何测试的表观气体速度下，都观察到流变学对气泡尺寸和传质都有很大影响。提出了液体侧传质k _L和比界面面积（a）的解离。结果表明，k _L先前在充满复杂流体的搅拌罐中验证过的模型可以令人满意地扩展到鼓泡塔。传入的数据库将为开发和验证多相流体动力学模型提供巨大帮助，尤其是在生物技术和复杂流变学相关系统的范围内。