Figure 5.

Steady‐state ethanol productivity achieved with different gas compositions ($y_{\mathrm{C}{\mathrm{O}}_2}=1-y_{\mathrm{C}\mathrm{O}}-y_{{\mathrm{H}}_2}$) with fixed conditions: GRT = 20 min, D _rate = 0.025 hr⁻¹, N = 500 rpm, cell recycle = 90% [Color figure can be viewed at wileyonlinelibrary.com]